A flushing system and toilet bowl

Abstract

The utility model belongs to sanitary ware technical field, concretely is a kind of flushing system and toilet, including water tank, the flushing assembly and water pump being arranged in water tank and the water supply pipe being arranged outside water tank;Flushing assembly includes water outlet passage and the first water inlet passage and second water inlet passage parallelly connected in the water outlet passage, first water inlet passage is connected with water pump, and second water inlet passage is connected with water supply pipe;Electromagnetic valve and sensor are provided on water supply pipe, sensor, water pump and electromagnetic valve are electrically connected with control unit, and control unit is configured as: according to the detection signal of sensor start water pump or open electromagnetic valve.The utility model cooperates through flushing assembly, electromagnetic valve and sensor, realizes selectively flushing mode according to the water pressure of water supply pipe, not only avoids the problem that toilet is not cleaned thoroughly due to water pressure being too low, but also avoids the problem that water splashes due to water pressure being too high, so that user has better defecation experience.

Description

Technical Field

[0001] This utility model belongs to the field of sanitary ware technology, specifically a flushing system and a toilet. Background Technology

[0002] With the increasing popularity of smart toilets, the stability of their flushing performance has become a key concern for consumers. Currently, most mainstream smart toilets on the market use a direct-flush system, which connects directly to the tap water pipe and relies on the natural pressure of the water supply network to flush and remove waste. While this system is simple in structure, its flushing effect is highly dependent on the tap water pressure. During peak water usage periods, in high-rise residential buildings, or when water pressure is insufficient due to pipeline maintenance, problems such as weak flushing and incomplete waste removal can easily occur, seriously affecting the user experience and hygiene.

[0003] To reduce the instability of flushing caused by water pressure fluctuations, existing technologies have introduced improved solutions that incorporate a water tank and a booster pump. This solution pre-stores water and uses the booster pump to pressurize the water in the tank during flushing, thus providing a stable and powerful flushing effect and significantly improving the reliability of wastewater discharge. However, in such solutions, the booster pump relies on electricity to start; without electricity, even if there is water in the tank, it cannot be discharged.

[0004] Therefore, ensuring the stable and efficient flushing performance of toilets under various water and power supply conditions has become a pressing technical challenge for the industry. Utility Model Content

[0005] To address the problems mentioned above, this utility model provides a flushing system and toilet. By installing a solenoid valve and a sensor on the water supply pipe, the system can selectively use a water pump or tap water to flush the toilet based on the water pressure in the water supply pipe.

[0006] The present invention adopts the following technical solution:

[0007] A flushing system includes a water tank, a flushing assembly and a water pump disposed inside the water tank, and a water supply pipe disposed outside the water tank;

[0008] The flushing assembly includes a water outlet channel and a first water inlet channel and a second water inlet channel connected in parallel to the water outlet channel. The first water inlet channel is connected to a water pump, and the second water inlet channel is connected to a water supply pipe.

[0009] The water supply pipe is equipped with a solenoid valve and a sensor for detecting the water pressure or flow rate in the water supply pipe. The sensor, water pump, and solenoid valve are all electrically connected to the control unit. The control unit is configured to start the water pump or open the solenoid valve according to the detection signal of the sensor.

[0010] Furthermore, the flushing assembly includes an inlet pipe and an outlet pipe. The inlet pipe forms an outlet channel and a first inlet channel and a second inlet channel that are separated from each other. The outlet ends of the first inlet channel and the second inlet channel are connected to the outlet channel. The side wall of the outlet channel has an inlet gap that is connected to the water tank. The outlet pipe is connected to the outlet end of the outlet channel.

[0011] Furthermore, a first water nozzle is formed at the outlet end of the first water inlet channel, and a second water nozzle is formed at the outlet end of the second water inlet channel. Both the first and second water nozzles are aligned with the water inlet of the outlet channel.

[0012] The cross-sectional area of ​​both the first and second water nozzles is smaller than the cross-sectional area of ​​the water inlet of the outlet channel.

[0013] Furthermore, the inlet pipe is connected to the water pump and the water supply pipe respectively through the connecting pipe, and the side wall of the connecting pipe is provided with adjacent first and second interfaces.

[0014] The inlet of the first water inlet channel on the water inlet pipe is sealed and connected to the first interface, and the inlet of the second water inlet channel on the water inlet pipe is sealed and connected to the second interface.

[0015] Furthermore, the inlet pipe and the connecting pipe are detachably connected by a snap-fit ​​structure, which includes a snap rim and a snap fastener that cooperate with each other. The snap rim is located on one of the inlet pipe and the connecting pipe, and the snap fastener is located on the other.

[0016] Furthermore, the water supply pipe is connected to the tap water pipe and the inlet valve pipe respectively through a tee connector, and the inlet valve pipe is connected to the inlet valve installed in the water tank.

[0017] Furthermore, the water pump, inlet pipe, and connecting pipe are all located at the bottom of the water tank.

[0018] Furthermore, the water pump is fixed inside the water tank by a mounting bracket.

[0019] This utility model also provides a toilet, including a toilet body and any of the above-mentioned flushing systems.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) The flushing system of this application includes a flushing component, a water pump and a water supply pipe. The flushing component is provided with a first water inlet channel and a second water inlet channel that are connected in parallel to the water outlet channel. The first water inlet channel is connected to the water pump and the second water inlet channel is connected to the water supply pipe. The water supply pipe is provided with a solenoid valve and a sensor. The sensor, the water pump and the solenoid valve are all electrically connected to the control unit. When the user flushes, the sensor first detects the water pressure or flow rate in the water supply pipe. When the water pressure or flow rate is within the preset pressure range, the control unit controls the solenoid valve to open. The external water source enters the second water inlet channel through the solenoid valve and then enters the water outlet channel. The water in the water outlet channel enters the toilet to complete the cleaning work. At this time, the water pump does not need to work, which can not only reduce the noise of the toilet when flushing, but also achieve the effect of saving electricity. When the water pressure or flow rate in the water supply pipe is outside the preset pressure range, the control unit controls the water pump to start. The water in the water tank is transported to the first water inlet channel and the water outlet channel in sequence by the water pump, and finally enters the toilet to complete the cleaning work. The aforementioned selective flushing mode based on water pressure in the water supply pipe not only avoids the problem of incomplete toilet cleaning due to low water pressure, but also avoids the problem of splashing water due to high water pressure, giving users a better toilet experience.

[0022] (2) The flushing system of this application designs the cross-sectional area of ​​the first spray nozzle and the cross-sectional area of ​​the second spray nozzle to be smaller than the cross-sectional area of ​​the inlet of the outlet channel, so that the flow velocity of the water increases when passing through the first spray nozzle or the second spray nozzle, forming a high-speed jet. The high-speed jet works in conjunction with the inlet gap to generate the Venturi effect, thereby driving the water in the tank into the outlet pipe, increasing the flushing water volume of the toilet, and at the same time reducing the noise generated during flushing. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an overall structural diagram of a flushing system provided in one embodiment of this application;

[0025] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0026] Figure 3 A structural diagram of a flushing system installed on a toilet body according to an embodiment of this application;

[0027] Figure 4A structural diagram of the water inlet pipe of a flushing system provided in an embodiment of this application (I);

[0028] Figure 5 A structural diagram (II) of the water inlet pipe of a flushing system provided in an embodiment of this application;

[0029] Figure 6 A structural diagram of the connecting pipes of a flushing system provided in an embodiment of this application;

[0030] Wherein: 1-Water tank, 2-Flushing assembly, 21-Inlet pipe, 211-Outlet channel, 212-First inlet channel, 2121-First spray nozzle, 213-Second inlet channel, 2131-Second spray nozzle, 214-Inlet gap, 215-Inlet section, 216-Outlet section, 217-Connector, 218-First mating surface, 22-Outlet pipe, 3-Water pump, 4-Water supply pipe, 41-Solenoid valve, 42-Sensor, 5-Connecting pipe, 51-First interface, 52-Second interface, 53-Second mating surface, 54-Step section, 6-Snap-on structure, 61-Snap-on edge, 62-Snap-on, 7-Tee connector, 8-Water supply pipe, 9-Inlet valve, 10-Mounting bracket, 11-Toilet body. Detailed Implementation

[0031] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The present invention will be described in detail with specific embodiments.

[0033] See Figure 1 To be continued Figure 6This utility model provides a flushing system, including a water tank 1, a flushing assembly 2 and a water pump 3 disposed within the water tank 1, and a water supply pipe 4 disposed outside the water tank 1. The flushing assembly 2 includes a water outlet channel 211 and a first water inlet channel 212 and a second water inlet channel 213 connected in parallel to the water outlet channel 211. The first water inlet channel 212 is connected to the water pump 3, and the second water inlet channel 213 is connected to the water supply pipe 4. The water supply pipe 4 is equipped with a solenoid valve 41 and a sensor 42 for detecting the water pressure or flow rate in the water supply pipe. The sensor 42, the water pump 3, and the solenoid valve 41 are all electrically connected to a control unit. The control unit is configured to start the water pump 3 or open the solenoid valve 41 according to the detection signal of the sensor 42. This application, through the parallel arrangement of the first water inlet channel 212 and the second water inlet channel 213, combined with the sensor 42 and the control unit, enables the flushing system to have two independent flushing modes. Specifically, when the user flushes, sensor 42 first detects the water pressure or flow rate in the water supply pipe. When the water pressure is within a preset pressure range (e.g., 0.14MPa~0.35MPa) or a preset flow rate range (0.48L / S~0.74L / s), the control unit controls the solenoid valve 41 to open. External water enters the second inlet channel 213 through the solenoid valve 41 and then enters the outlet channel 211. The water in the outlet channel 211 enters the toilet bowl to complete the cleaning process. At this time, the flushing mode does not require... The operation of water pump 3 not only reduces the noise of the toilet flushing but also saves electricity. When the water pressure in the water supply pipe 4 is outside the preset pressure range (e.g., less than 0.14 MPa or greater than 0.35 MPa) or flow range (e.g., less than 0.48 L / s or greater than 0.74 L / s), the control unit controls the water pump 3 to start. Water in the water tank 1 is sequentially transported through water pump 3 to the first inlet channel 212 and the outlet channel 211, and finally enters the toilet to complete the cleaning process. The above technical solution selects the flushing mode according to the water pressure in the water supply pipe, which not only avoids the problem of incomplete toilet cleaning due to low water pressure in the external water supply pipe but also avoids the problem of splashing due to high water pressure, providing users with a better toilet experience. It should be noted that the pressure sensor 42 in this application can be a pressure sensor, and the flow sensor 42 can be a flow sensor.

[0034] The above technical solution enables the flushing system of this application to be neither entirely dependent on municipal water pressure nor entirely dependent on mains power. Even in the event of a power outage, as long as there is pressure in the tap water supply, effective flushing can still be completed through the second water inlet channel 213. When both mains power and municipal water pressure are available, the system can selectively use the water pump 3 or the solenoid valve 41 for flushing, depending on the level of the municipal water pressure. In most cases where the water pressure is sufficient, the system does not need to start the water pump 3, saving energy consumption. At the same time, regardless of fluctuations in municipal water pressure, the flushing system can select the optimal flushing mode to ensure a stable and powerful flushing effect every time.

[0035] For further details, please refer to [link / reference]. Figure 1 , Figure 3 and Figure 4 The flushing assembly 2 includes an inlet pipe 21 and an outlet pipe 22. The inlet pipe 21 forms an outlet channel 211 and a first inlet channel 212 and a second inlet channel 213 that are separated from each other. The outlet ends of the first inlet channel 212 and the second inlet channel 213 are connected to the outlet channel 211. The side wall of the outlet channel 211 is provided with an inlet gap 214 that is connected to the water tank 1. The outlet pipe 22 is connected to the outlet end of the outlet channel 211. Specifically, the inlet pipe 21 is an integrally formed component with three connection ports. The upper connection port is the outlet of the outlet channel 211, and the other two adjacent lower connection ports are the inlets of the first inlet channel 212 and the second inlet channel 213. The three connection ports serve as connecting parts to other components. At the same time, by opening an inlet gap 214 on the side wall of the outlet channel 211, a negative pressure is generated at the inlet gap 214 during flushing, causing the water in the water tank 1 to enter the inlet pipe 21 through the inlet gap 214 and mix with the water sprayed from the first inlet channel 212 or the water sprayed from the second inlet channel 213. This design achieves the dual effect of channel water inlet and water tank replenishment, significantly increasing the instantaneous flushing flow rate and improving the sewage discharge function without increasing the pressure of the water pump 3 or the water supply pipe 4.

[0036] Preferably, the water inlet pipe 21 includes an inlet section 215 and an outlet section 216, which are connected by a connector 217. An inlet gap 214 is formed between adjacent connectors 217. Optionally, the connector 217 is a fixed unit distributed outside the outlet end of the first water inlet channel 212 and the outlet end of the second water inlet channel 213. One end of the connector is connected to the inlet section 215, and the other end is connected to the outlet section 216. The size of the inlet gap 214 can be controlled by adjusting the number and size of the connectors 217.

[0037] For further details, please refer to [link / reference]. Figure 4The first water inlet channel 212 has a first water nozzle 2121 at its outlet end, and the second water inlet channel 213 has a second water nozzle 2131 at its outlet end. Both the first water nozzle 2121 and the second water nozzle 2131 are aligned with the water inlet of the water outlet channel 211. The cross-sectional area of ​​the first water nozzle 2121 and the cross-sectional area of ​​the second water nozzle 2131 are both smaller than the cross-sectional area of ​​the water inlet of the water outlet channel 211. Because the cross-sectional areas of the first spray nozzle 2121 and the second spray nozzle 2131 are both smaller than the cross-sectional area of ​​the inlet of the outlet channel 211, the water flow velocity increases when passing through the first spray nozzle 2121 or the second spray nozzle 2131, forming a high-speed jet. This high-speed jet works in conjunction with the inlet gap 214 to generate a Venturi effect, thereby drawing water from the tank 1 into the outlet pipe 22, increasing the flushing volume of the toilet. Simultaneously, because the water pump 3 and the inlet gap 214 are both surrounded by water from the tank 1, the noise generated during flushing is reduced. This ingenious structural design allows the toilet to complete normal flushing even under low water pressure.

[0038] Furthermore, both the first nozzle 2121 and the second nozzle 2131 are crescent-shaped. A crescent-shaped nozzle refers to a nozzle with a continuously curved arc-shaped edge, its cross-section having a concave center and convex sides. This shape guides the water flow through the arc-shaped edge, creating a diffusion angle and enhancing the water flow coverage. Because the water flow velocity from the first nozzle 2121 and the second nozzle 2131 is relatively high, low pressure is generated in their vicinity, creating an adsorption effect, which then guides the water in the water tank 1 into the inlet pipe 21 through the inlet gap 214.

[0039] For further details, please refer to [link / reference]. Figure 1 and Figure 5The inlet pipe 21 is connected to the water pump 3 and the water supply pipe 4 respectively through the connecting pipe 5. The side wall of the connecting pipe 5 is provided with adjacent first interface 51 and second interface 52. The inlet of the first water inlet channel 212 on the inlet pipe 21 is sealed and connected to the first interface 51, and the inlet of the second water inlet channel 213 on the inlet pipe 21 is sealed and connected to the second interface 52. By precisely positioning the two interfaces and sealing and connecting them with the two inlets on the inlet pipe 21, the physical isolation of the water pump circuit and the water supply pipe circuit is fundamentally guaranteed, eliminating the possibility of crosstalk between the two water flows at the source. Moreover, this structure can complete the connection of the two water circuits at the same time in one installation operation, avoiding the errors that may be caused by step installation, and ensuring the uniformity and reliability of the seal. Optionally, the inlet pipe 21 has a first mating surface 218 formed at the inlet of the first inlet channel 212 and the inlet of the second inlet channel 213. The connecting pipe 5 has a second mating surface 53 formed at the opposite position. The inlet of the first inlet channel 212 and the inlet of the second inlet channel 213 protrude from the first mating surface 218. The connecting pipe 5 has a step portion 54 formed at the joint with the first inlet channel 212 and the second inlet channel 213. During installation, the inlet of the first inlet channel 212 and the inlet of the second inlet channel 213 abut against the step portion 54, and the first mating surface 218 and the second mating surface 53 are sealed together.

[0040] As can be seen from the above technical solution, the first water inlet channel 212 and the second water inlet channel 213 are integrated on the water inlet pipe 21, and the first interface 51 and the second interface 52 are provided on the side wall of the connecting pipe 5, forming a modular structure, which greatly simplifies the installation process and saves space at the bottom of the water tank, making the internal layout neater and more compact.

[0041] For further details, please refer to [link / reference]. Figure 1 , Figure 4 and Figure 5 The inlet pipe 21 and the connecting pipe 5 are detachably connected via a snap-fit ​​structure 6. The snap-fit ​​structure 6 includes a locking edge 61 and a snap fastener 62 that cooperate with each other. The locking edge 61 is located on one of the inlet pipe 21 and the connecting pipe 5, and the snap fastener 62 is located on the other. During assembly, simply align the inlet pipe 21 and the connecting pipe 5, apply pressure to make the snap fastener 62 and the locking edge 61 engage, and the connection is completed without any tools. The operation is extremely simple and quick, greatly improving production efficiency. At the same time, the cooperation between the locking edge 61 and the snap fastener 62 forms a reliable mechanical interlock, and no additional screws, nuts, or flanges are required, simplifying material management and reducing parts costs.

[0042] For further details, please refer to [link / reference]. Figure 1The water supply pipe 4 is connected to the tap water pipe 8 and the inlet valve pipe respectively through the three-way connector 7. The inlet valve pipe is connected to the inlet valve 9 installed in the water tank 1. Specifically, the three-way connector 7 forms a diversion water path structure through three connection ports. The opening and closing of one water path is controlled by the solenoid valve 41, and the opening and closing of the other water path is controlled by the inlet valve 9. When the water in the water tank 1 is insufficient, the inlet valve 9 opens to form a passage between the three-way connector 7 and the tap water pipe 8, and tap water flows into the water tank 1. When the water in the water tank 1 is sufficient, the inlet valve 9 closes.

[0043] Furthermore, the water pump 3, inlet pipe 21, and connecting pipe 5 are all located at the bottom of the water tank 1. By concentrating heavy and potentially vibrating components such as the water pump 3, inlet pipe 21, and connecting pipe 5 at the bottom of the water tank 1, the center of gravity of the entire flushing system is lowered, enhancing its installation stability within the water tank 1. Simultaneously, this ensures that the inlet of the water pump 3 is submerged at any water level in the water tank 1, guaranteeing the pump can instantly and efficiently obtain water. The inlet pipe 21, located at the bottom, ensures that water can always enter through the inlet gap 214, increasing the flushing flow rate.

[0044] Furthermore, the water pump 3 is fixed inside the water tank 1 by the mounting bracket 10. The mounting bracket 10 is connected to the inner wall of the water tank 1 through preset fixing points to form a stable support frame. The water pump 3 is fixed in the preset mounting groove of the mounting bracket 10 by bolt fastening or embedded snap-fit, and the shape of the mounting groove matches the outline of the water pump 3's outer shell to form a contact fixation. When the water pump is working, the mechanical vibration generated is absorbed by the rigid structure of the mounting bracket 10, and rubber shock-absorbing pads can be set at the bottom of the mounting bracket 10 to further reduce vibration transmission.

[0045] See Figure 3 This utility model also provides a toilet, including a toilet body 11 and any of the above-mentioned flushing systems. The toilet provided in this application adopts all the technical solutions of all the above-mentioned flushing system embodiments, and therefore has at least all the beneficial effects brought about by the technical solutions of the above-mentioned flushing system embodiments, which will not be described in detail here.

[0046] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A flushing system, characterized in that It includes a water tank, a flushing assembly and a water pump installed inside the water tank, and a water supply pipe installed outside the water tank; The flushing assembly includes a water outlet channel and a first water inlet channel and a second water inlet channel connected in parallel to the water outlet channel. The first water inlet channel is connected to the water pump, and the second water inlet channel is connected to the water supply pipe. The water supply pipe is equipped with a solenoid valve and a sensor for detecting the water pressure or flow rate in the water supply pipe. The sensor, water pump, and solenoid valve are all electrically connected to the control unit. The control unit is configured to start the water pump or open the solenoid valve according to the detection signal of the sensor.

2. The flushing system according to claim 1, characterized in that The flushing assembly includes an inlet pipe and an outlet pipe. The inlet pipe forms the outlet channel and a first inlet channel and a second inlet channel that are separated from each other. The outlet ends of the first inlet channel and the second inlet channel are connected to the outlet channel. The side wall of the outlet channel has an inlet gap that is connected to the water tank. The outlet pipe is connected to the outlet end of the outlet channel.

3. A flushing system according to claim 1 or 2, characterized in that The first water inlet channel has a first water nozzle at its outlet end, and the second water inlet channel has a second water nozzle at its outlet end. Both the first water nozzle and the second water nozzle are aligned with the water inlet of the outlet channel. The cross-sectional area of ​​the first spray nozzle and the cross-sectional area of ​​the second spray nozzle are both smaller than the cross-sectional area of ​​the inlet of the water outlet channel.

4. The flushing system of claim 2, wherein, The inlet pipe is connected to the water pump and the water supply pipe respectively through a connecting pipe, and the side wall of the connecting pipe is provided with an adjacent first interface and a second interface. The inlet of the first water inlet channel on the water inlet pipe is sealed and connected to the first interface, and the inlet of the second water inlet channel on the water inlet pipe is sealed and connected to the second interface.

5. The flushing system of claim 4, wherein, The water inlet pipe and the connecting pipe are detachably connected by a snap-fit ​​structure. The snap-fit ​​structure includes a snap edge and a snap fastener that cooperate with each other. The snap edge is disposed on one of the water inlet pipe and the connecting pipe, and the snap fastener is disposed on the other.

6. The flushing system of claim 1, wherein, The water supply pipe is connected to the tap water pipe and the inlet valve pipe respectively through a T-joint. The inlet valve pipe is connected to the inlet valve installed in the water tank.

7. The flushing system of claim 4, wherein, The water pump, the inlet pipe, and the connecting pipe are all located at the bottom of the water tank.

8. The flushing system of claim 1, wherein, The water pump is fixed inside the water tank by a mounting bracket.

9. A toilet bowl characterized by Includes the toilet body and the flushing system as described in any one of claims 1-8.

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