Water tank flushing system with pump and intelligent closestool

Abstract

The utility model provides a water tank flushing system with a pump and an intelligent closestool, the water tank flushing system with the pump comprises a water pump arranged in a water tank, a switching valve, a first buoy and a second buoy, the switching valve comprises a valve body and a switching piece, the valve body is provided with a water distribution cavity, a water inlet, a first water outlet and a second water outlet, and the water inlet, the first water outlet and the second water outlet are communicated with the water distribution cavity. The water inlet is connected with the water pump, the switching piece is rotatably assembled in the water distribution cavity, the first floating cylinder is in linkage with the switching piece, and the second floating cylinder and the switching piece form delay linkage. The water level in the water tank is lowered, so that the first floating cylinder drives the switching piece to rotate towards the second water outlet before the second floating cylinder so as to block the second water outlet, and when the second floating cylinder and the switching piece form linkage, the second floating cylinder drives the switching piece to rotate reversely so as to open the second water outlet. The brush ring can be switched to discharge water to supplement water in the later period of flushing.

Description

Technical Field

[0001] This utility model relates to the field of smart toilets, specifically to a flushing system with a pump tank and a smart toilet. 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 flush valve becomes a feasible solution. Patent number 202121667686.1 provides a solution using an electric pump for flushing, but because this flushing system uses a motor switching component, the cost is high. Patent number 202322913415.5 provides a solution using a float-mounted mechanical switching system, but because mechanical switching can only be done once, it cannot achieve water replenishment to the brush ring of the smart toilet. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a flushing system with a pump-equipped water tank and an intelligent toilet.

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

[0005] A pumped water tank flushing system includes a water pump and a switching valve installed in the water tank. The switching valve includes a valve body and a switching element. The valve body has a water distribution chamber and an inlet, a first outlet, and a second outlet communicating with the water distribution chamber. The inlet is connected to the water pump. The switching element is rotatably mounted in the water distribution chamber. The system also includes a first float and a second float. The first float is linked with the switching element, and the second float is linked with the switching element in a delayed manner. When the water level in the water tank drops, the first float drives the switching element to rotate toward the second outlet before the second float, thus blocking the second outlet. When the second float is linked with the switching element, the second float drives the switching element to rotate in the opposite direction, thus opening the second outlet.

[0006] Furthermore, it also includes a switching lever, the fulcrum of which is connected to the pivot of the switching element, the first lever arm of which is connected to the first float, and the second float and the second lever arm of which form a delayed linkage.

[0007] Furthermore, the first pontoon and the first lever arm of the switching lever are integrally connected; or, the first pontoon and the switching lever are connected by assembly.

[0008] Furthermore, the second float is provided with an upwardly extending hook, and the second lever arm of the switching lever 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 lever arm of the switching lever.

[0009] Furthermore, the switching lever has an inverted T-shaped structure, including a vertical rod and a horizontal rod. The first end of the vertical rod is connected to the pivot of the switching component and serves as the fulcrum of the switching lever. The second end of the vertical rod is connected to the middle of the horizontal rod and divides the horizontal rod into a first lever arm and a second lever arm.

[0010] Furthermore, the second pontoon is vertically oriented.

[0011] Furthermore, the water inlet of the valve body is connected to the water pump through a water inlet pipe, the water inlet pipe is vertically arranged, and the second float forms a guiding fit with the water inlet pipe.

[0012] 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.

[0013] Furthermore, the switching component includes a rotating shaft and a switching plate connected to the rotating shaft. The rotating shaft is rotatably mounted in the water distribution chamber so that the switching plate swings between the first water outlet and the second water outlet.

[0014] A smart toilet includes at least the aforementioned flushing system with a pump tank; a first water outlet is connected to the toilet's lower flush jet pipe; and a second water outlet is connected to the toilet's upper flush ring pipe.

[0015] Furthermore, when the water tank is at the initial water level, the switching component blocks the first outlet. Before the second float and the switching component are linked, the water pump pumps water for a certain period of time and then stops pumping for the first time. After a certain interval, pumping resumes. When the second float and the switching component are linked, or when they are linked and move down a certain distance, the water pump stops pumping for the second time and resumes pumping after a certain interval, until the process ends.

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

[0017] By designing a structure with first and second floats, the first and second floats act sequentially on the switching element, causing the switching element to rotate back and forth between the first and second water outlets. This achieves the switching between water output from the brush ring and water jet output. In the later stages of flushing, it can smoothly switch to water output from the brush ring of the smart toilet to replenish water and restore the water seal. This design is simple in structure, low in cost, and provides stable performance. Attached Figure Description

[0018] Figure 1 The figure shown is a three-dimensional structural diagram of the flushing system with pump and water tank in the embodiment.

[0019] Figure 2 The diagram shown is a schematic of the pump-driven water tank flushing system in the embodiment at the initial water level, where the cover plate of the water distribution chamber is hidden.

[0020] Figure 3 The figure shown is a cross-sectional view of the pump-tank flushing system in the embodiment at the initial water level;

[0021] Figure 4 The figure shown is a schematic diagram of the appearance of the pump-tank flushing system in the embodiment when the water level drops to the point where the switching component blocks the second outlet;

[0022] Figure 5 The figure shown is a cross-sectional view of the pump-tank flushing system in the embodiment when the water level drops to the point where the switching element blocks the second outlet;

[0023] Figure 6 The image shown is a schematic diagram of the appearance of the pump-tank flushing system in the embodiment when the water level drops to the point where the second outlet is reopened.

[0024] Figure 7 The figure shown is a cross-sectional view of the pump-tank flushing system in the embodiment when the water level drops to the point where the second outlet is reopened. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, terms such as "upper", "lower", "left", "right", "front", and "rear" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience 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 utility model.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0028] Reference Figures 1 to 7As shown, this embodiment provides a pump-driven water tank flushing system, including a water pump 10 and a switching valve 20 disposed within a water tank 100. The switching valve 20 includes a valve body 21 and a switching element 22. The valve body 21 has a water distribution chamber 201 and an inlet 211, a first outlet 212, and a second outlet 213 communicating with the water distribution chamber 201. The inlet 211 is connected to the water pump 10. The switching element 22 is rotatably mounted within the water distribution chamber 201. Thus, the water outlet pattern can be controlled by rotating the switching element 22, such as by blocking the first outlet 212 or the second outlet 213. When the first outlet 212 is open, the water flowing into the water distribution chamber 201 from the inlet 211 can only flow out from the second outlet 213. When the switching component 22 blocks the second outlet 213, the water flowing into the water distribution chamber 201 from the inlet 211 can only flow out from the first outlet 212. When the switching component 22 does not block the first outlet 212 and the second outlet 213 (i.e., it is located between the first outlet 212 and the second outlet 213), the water flowing into the water distribution chamber 201 from the inlet 211 can flow out from both the first outlet 212 and the second outlet 213 at the same time.

[0029] Furthermore, it also includes a first float 31 and a second float 32. The first float 31 is linked with the switching element 22, and the second float 32 is linked with the switching element 22 in a delayed manner. That is, at the initial water level, the second float 32 will not be linked with the switching element 22. Thus, the drop in the water level in the water tank 100 causes the first float 31 to drive the switching element 22 to rotate toward the second outlet 213 before the second float 32, thereby blocking the second outlet 213. When the second float 32 is linked with the switching element 22, the second float 32 drives the switching element 22 to rotate in the opposite direction, thereby opening the second outlet 213. That is, when the second float 32 is linked with the switching element 22, as the water level drops, the second float 32 overcomes the force exerted by the first float 31 on the switching element 22 by its own weight, thereby driving the switching element 22 to rotate in the opposite direction.

[0030] When applied to a toilet, this embodiment also provides a smart toilet, which includes at least the pump-driven water tank flushing system described above. That is, apart from employing the pump-driven water tank flushing system, the remaining structure of the smart toilet can utilize existing technology, such as specifically including a toilet bowl and a water tank 100, with the pump-driven water tank flushing system installed within the water tank 100. The first water outlet 212 is connected to the toilet's lower flush jet pipe; the second water outlet 213 is connected to the toilet's upper flush ring pipe.

[0031] In this specific embodiment, at the initial water level (i.e., the highest water level) before flushing, such as Figure 2 and Figure 3As shown, the switching element 22 blocks the first outlet 212 (of course, at the initial water level, the switching element can also simultaneously open the first outlet 212 and the second outlet 213). During flushing, the water pump 10 draws water from the water tank 100 and flows into the water distribution chamber 201 from the inlet 211, and then flows out from the second outlet 213 for brush ring flushing; as the water level drops, the first float 31 drives the switching element 22 to rotate towards the second outlet 213 before the second float 32. During this process, the first outlet 212 is opened, and the water in the water distribution chamber 201 flows out from both the first outlet 212 and the second outlet 213 simultaneously, performing brush ring flushing and jet flushing, until the second outlet 213 is blocked. At this time, the water in the water distribution chamber 201 can only flow out from the first outlet 212, as shown. Figure 4 and Figure 5 As shown, this means that water jetting is performed independently. As the water level continues to drop, the second float 32 begins to engage with the switching element 22. At this point, with the water level continuing to drop, the second float 32, through its own weight, overcomes the force exerted on the switching element 22 by the first float 31, driving the switching element 22 to rotate in the opposite direction, thereby reopening the second outlet 213. Figure 6 and Figure 7 As shown, the water flow from the brush ring is restarted and replenished to the water seal state. After flushing, the water pump 10 stops working, and the water tank 100 is replenished to the initial water level, completing one flushing cycle.

[0032] In a further preferred embodiment, the second float 32 drives the switching component 22 to rotate in the opposite direction until the first outlet 212 is blocked, that is, in the later stage of flushing, water is replenished only through the brush ring to reach the water seal state.

[0033] Specifically, the inlet 211 of the valve body 21 is connected to the water pump 10 through an inlet pipe 25. The valve body 21 is also provided with a first outlet pipe 23 connected to the first outlet 212 and a second outlet pipe 24 connected to the second outlet 213. The first outlet pipe 23 and the second outlet pipe 24 are respectively connected to the toilet's down-flush jet pipe and the top-flush brush ring pipe.

[0034] In this embodiment, the switching component 22 includes a rotating shaft 221 and a switching plate 222 connected to the rotating shaft 221. The rotating shaft 221 is rotatably mounted in the water distribution chamber 201, so that the switching plate 222 swings and switches between the first outlet 212 and the second outlet 213. The plate-shaped switching plate 222 structure is lightweight and has stable operation, which can reduce the weight of the first float 31 and the second float 32. Of course, in other embodiments, the switching plate 222 can also be replaced with a spherical switching ball, as long as it can block the first outlet 212 and the second outlet 213.

[0035] Specifically, in this embodiment, the structure for the first float 31 and the second float 32 to perform the above-mentioned operation includes a switching lever 40. Specifically, the switching lever 40 is a lever structure with a first lever arm 42, a second lever arm 43, and a fulcrum 41 located between the first lever arm 42 and the second lever arm 43. The fulcrum 41 of the switching lever 40 is connected to the rotating shaft 221 of the switching element 22. The first lever arm 42 of the switching lever 40 is connected to the first float 31, thereby enabling the first float 31 to form a linkage with the switching element 22. The second float 32 forms a delayed linkage with the second lever arm 43 of the switching lever 40, that is, the second float 32 forms a delayed linkage with the switching element 22 through the cooperation of the second lever arm 43. Figure 2 As shown, the first lever arm 42 and the first float 31 are located on the left, and the second lever arm 43 is located on the right. In the initial stage of flushing, the downward movement of the first float 31 causes the rotating shaft 221 of the switching element 22 to rotate counterclockwise, thereby causing the switching plate 22 to swing counterclockwise until it blocks the second outlet 213; at this time, the first lever arm 42 moves downward, and the second lever arm 43 tilts upward. When the second float 32 and the second lever arm 43 of the switching lever 40 form a linkage (i.e., the second float 32 and the switching element 22 form a linkage), the second float 32 continues to move downward with the water level, exerting a downward pulling force on the second lever arm 43. This pulling force must overcome the weight of the first float 31 on the left, thereby causing the rotating shaft of the switching element 22 to rotate in the opposite direction (i.e., clockwise), thus opening the second outlet 213; at this time, as... Figure 6 As shown, the second lever arm 43 moves downward, while the first lever arm 42 and the first float 31 tilt upward. This embodiment introduces a switching lever 40 structure, which facilitates the layout of the first float 31 and the second float 32. That is, through the structure of the switching lever 40, the structural layout of the switching component 22, the first float 31 and the second float 32, and the corresponding operating steps are well realized; and within a suitable range, the length of the second lever arm 43 can be increased or the length of the first lever arm 42 can be decreased, thus appropriately reducing the weight of the second float 32.

[0036] Furthermore, in this embodiment, the first float 31 and the first lever arm 42 of the switching lever 40 are integrally connected, that is, the first float 31 and the switching lever 40 are integrally formed, which is convenient for manufacturing. Of course, in other embodiments, the first float 31 and the switching lever 40 can also be separate structures, which are assembled and connected by assembly. For example, the linkage between the first float 31 and the switching component 22 can also be that the first float 31 and the first lever arm 42 of the switching lever 40 are movably connected, such as by hinge or by other structures (such as rigid or flexible connectors), etc., as long as the downward movement of the first float 31 can drive the switching component 22 to complete the actions disclosed above.

[0037] Further, in this embodiment, the switching lever 40 has an inverted T-shaped structure, including a vertical rod 44 and a cross bar. The first end of the vertical rod 44 is connected to the rotating shaft 221 of the switching member 22 and serves as the fulcrum of the switching lever 40. The second end of the vertical rod 44 is connected to the middle of the cross bar, and the cross bar is divided into the first force arm 42 and the second force arm 43. The structure of the vertical rod 44 is designed to adapt to the height difference between the rotating shaft 221 of the switching member 22 and the initial water level, that is, the height difference between the rotating shaft 221 of the switching member 22 and the initial water level can be compensated by the vertical rod 44. Of course, in other embodiments, the switching lever 40 can also adopt other structures, such as a cross bar, an arc-shaped rod or a "U" - shaped structure, etc. When an arc-shaped rod or a "U" - shaped structure is adopted, it can also adapt to the height difference between the rotating shaft 221 of the switching member 22 and the initial water level.

[0038] An upward - extending hook 33 is provided on the second float 32. The second force arm 43 of the switching lever 40 is located below the hook. When the second float 32 moves downward to be linked with the switching member 22, the hook 33 hooks on the second force arm 43 of the switching lever 40. In this way, the delayed linkage between the second float 32 and the switching member 22 can be well realized. At the same time, the linkage timing between the second float 32 and the switching member 22 can be adjusted by adjusting the height of the hook 33. For example, when the height of the hook 33 is increased, the second float 32 needs to move downward to a lower position to be linked with the switching member 22, that is, the second water outlet 213 is opened later. On the contrary, when the height of the hook 33 is reduced, the second water outlet 213 will be opened earlier, which is beneficial to adjustment and modification.

[0039] Since the second float 32 is not directly fixedly or limitedly connected to the switching lever 40, to prevent the second float 32 from shifting in position, in this embodiment, the second float 32 is designed to be vertically guided, that is, the second float 32 can only move vertically up and down and cannot shift horizontally. The specific implementation structure is as follows: the water inlet 211 connecting the valve body 21 and the water inlet pipe 25 of the water pump 10 is vertically arranged and is a section of rigid and vertically arranged pipe. The second float 32 forms a guiding fit with the water inlet pipe 25, that is, a guiding hole is provided on the second float 32, and it is fitted on the water inlet pipe 25 through the guiding hole. In this way, not only the guiding of the second float 32 is satisfied, but also the flushing system forms an integral structure, which is beneficial to pre - assembly and then placing it in the water tank 100, and the operation is more convenient. Of course, in other embodiments, it can also be that: a vertical guiding channel is provided on the inner wall of the water tank 100, and the second float 32 is assembled in the vertical guiding channel, and the vertical guiding setting of the second float 32 can also be realized.

[0040] Furthermore, when the switching piece 22 switches between the first outlet 212 and the second outlet 213, the continuous pumping of water by the water pump 10 applies water pressure to the switching piece 22. The second float 32 also needs to overcome this water pressure to drive the switching piece 22 to reverse. This requires increasing the weight of the second float 32, which is not conducive to a small and lightweight design. Therefore, in this embodiment, to minimize the influence of water pressure, it is designed such that before the second float 32 and the switching piece 22 form a linkage (i.e., during the stage when the first float 31 acts on the switching piece 22)... In the initial position, the switching element blocks the first water outlet, and all the water in the water distribution chamber flows out through the second water outlet 213 for flushing. After the water pump pumps water for a certain period of time, the water level in the tank will drop. At this time, the pumping is interrupted for the first time, and pumping resumes after a certain interval (e.g., 1-3 seconds). By briefly interrupting the pumping of the water pump 10, the water pressure effect exerted on the switching element 22 by the water flow is eliminated, allowing the first float 31 to smoothly drive the switching element to switch towards the second water outlet, making the switching action smoother. Similarly, when the second float 32 and the switching element 22 are linked, or when they are linked and move down a certain distance, the water pump 10 is interrupted, and pumping resumes after a certain interval (e.g., 1-3 seconds) until the process ends. Thus, when the second float 32 applies force to the switching element 22, briefly interrupting the pump 10 to pump water eliminates the water pressure effect on the switching element 22, allowing the switching element 22 to be driven to reverse more smoothly to reopen the second outlet 213. This effectively reduces the weight of the first float 31 and the second float 32. Of course, in other embodiments, the switching element 22 can also be driven to complete the switching action while continuously discharging water by directly increasing the weight of the first float 31 and the second float 32. However, compared to the solution in this embodiment, this would increase costs and easily lead to abnormal situations such as insufficient buoyancy.

[0041] 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 flushing system for a water tank with a pump, comprising a water pump and a switching valve arranged in the water tank, the switching valve comprising a valve body and a switching member, the valve body having a water distribution cavity and a water inlet, a first water outlet and a second water outlet communicating with the water distribution cavity, the water inlet being connected to the water pump, the switching member being rotatably arranged in the water distribution cavity, characterized in that: The first float is connected with the switching piece, and the second float is connected with the switching piece in a delayed manner. When the water level in the water tank decreases, the first float drives the switching piece to rotate towards the second water outlet to block the second water outlet, and when the second float is connected with the switching piece, the second float drives the switching piece to rotate reversely to open the second water outlet.

2. The pumped water tank flush system of claim 1, wherein: The switching lever is connected with the rotation shaft of the switching piece as a fulcrum, the first arm of the switching lever is connected with the first float, and the second arm of the switching lever is connected with the second float in a delayed manner.

3. The tank flush system with pump according to claim 2, characterized in that: The first float is connected with the first arm of the switching lever in an integrated manner, or the first float is connected with the switching lever through assembly.

4. The pumped water tank flush system of claim 2, wherein: The second float is provided with an upwardly extending hook, the second arm of the switching lever is located below the hook, and when the second float is connected with the switching piece, the hook is hooked on the second arm of the switching lever.

5. The pumped water tank flush system of claim 2, wherein: The switching lever is in an inverted T-shaped structure, including a vertical rod and a horizontal rod, the first end of the vertical rod is connected with the rotation shaft of the switching piece and serves as a fulcrum of the switching lever, the second end of the vertical rod is connected with the middle part of the horizontal rod, and the horizontal rod is divided into the first arm and the second arm.

6. The pump and flush system for a water closet according to any one of claims 1 to 5, wherein: The second float is vertically arranged.

7. The tank flush system with pump according to claim 6, characterized in that The water inlet of the valve body is connected with the water pump through a water inlet pipe, the water inlet pipe is vertically arranged, the second float is connected with the water inlet pipe in a guiding manner, or the inner wall of the water tank is provided with a vertical guiding channel, and the second float is assembled in the vertical guiding channel.

8. The pump and flush system for a water closet according to any one of claims 1 to 5, wherein: The switching piece includes a rotation shaft and a switching sheet connected with the rotation shaft, and the rotation shaft is rotatably assembled in the water distribution cavity to enable the switching sheet to swing between the first water outlet and the second water outlet.

9. A smart toilet, characterized by: The flushing system includes the water tank with the pump according to any one of claims 1 to 7, the first water outlet is connected with a lower flushing jet pipe of the closestool, and the second water outlet is connected with an upper flushing ring pipe of the closestool.

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