Flushing valve and intelligent closestool

Abstract

The flushing valve comprises a valve body, a side flushing pipe and a fastener, the valve body comprises a side flushing pipe portion, the side flushing pipe portion is provided with a side water outlet, the side flushing pipe is provided with a first spraying pipe opening and a second spraying pipe opening which are oppositely arranged and communicated, the first spraying pipe opening is communicated with the side water outlet, and the second spraying pipe opening is communicated with the side water outlet. The second spray pipe orifice is used for spraying liquid; the fastener is arranged on the side flushing spray pipe and the side flushing pipe part in a surrounding mode and used for connecting the side flushing pipe part and the side flushing spray pipe. Therefore, the side flushing spray pipe is directly connected with the side flushing pipe part through the fastener instead of being connected with the side flushing spray pipe independently through a braided pipe or a rubber pipe, so that the braided pipe or the rubber pipe is saved, the assembly of the intelligent closestool is facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of bathroom, and in particular to a flush valve and an intelligent toilet. Background Art

[0002] With the continuous development of society, people pay more and more attention to high-quality life. For example, in the field of bathroom, the way people go to the toilet is also changing. For example, people have changed from squatting with bent legs to sitting toilets with smart toilets, which alleviates the problem of poor blood circulation in the legs after a long time of going to the toilet. Generally speaking, a smart toilet includes a toilet body, a water tank, an electrical module, a nozzle and a control panel. The water tank is used to store tap water for flushing the toilet body. The control panel, electrical module and nozzle are all installed on the toilet body. The electrical module includes a flush valve.

[0003] The inventor of the present application discovered during the implementation of the present application that the flush valve currently on the market and the side flush nozzle of the toilet need to be connected to the water path through a relatively long braided tube or rubber tube, which brings inconvenience. Utility Model Content

[0004] In order to solve the above technical problems, the embodiments of the utility model provide an easy-to-use flush valve and a smart toilet.

[0005] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0006] A flush valve comprises a valve body, a side flush nozzle and a fastener, wherein the valve body comprises a side flush pipe portion, the side flush pipe portion is provided with a side water outlet; the side flush nozzle is provided with a first nozzle port and a second nozzle port which are arranged opposite to and connected to each other, the first nozzle port is connected to the side water outlet, and the second nozzle port is used for spraying liquid; a fastener is arranged around the side flush nozzle and the side flush pipe portion, and the fastener is used to connect the side flush pipe portion and the side flush nozzle.

[0007] Optionally, the side flushing pipe portion is provided with an external thread, the side flushing nozzle is inserted into the side water outlet, the fastener is provided with an internal thread, and the internal thread is threadedly connected to the external thread so that the side flushing nozzle and the side flushing pipe portion are relatively fixed.

[0008] Optionally, the valve body also includes a water inlet pipe portion, a first intermediate pipe portion and a first valve assembly, the first intermediate pipe portion is connected to the side flush pipe portion, the water inlet pipe portion and the side flush pipe portion are both connected to the first valve assembly, and the first valve assembly is used to control the connection or cutoff of the first intermediate pipe portion with the water inlet pipe portion.

[0009] Optionally, the water inlet pipe portion and the side flush pipe portion are respectively located on two adjacent sides of the first valve assembly.

[0010] Optionally, the valve body further comprises a bottom flushing pipe portion, and the bottom flushing pipe portion and the water inlet pipe portion are both located on the same side of the first valve assembly.

[0011] Optionally, the valve body also includes a second intermediate pipe portion and a second valve assembly, the second intermediate pipe portion is connected to the bottom flush pipe portion, the second valve assembly is respectively connected to the water inlet pipe portion and the second intermediate pipe portion, and the second valve assembly is used to control the second intermediate pipe portion to be connected or cut off with the water inlet pipe portion.

[0012] Optionally, along the water inlet direction of the water inlet pipe portion, the distance between the first valve assembly and the water inlet of the water inlet pipe portion is greater than the distance between the second valve assembly and the water inlet of the water inlet pipe portion.

[0013] Optionally, the valve body also includes a first isolation member and a second isolation member, the first isolation member is arranged at the output end of the first intermediate pipe portion, and the second isolation member is arranged at the output end of the second intermediate pipe portion, the first isolation member is used to isolate air from entering the first intermediate pipe portion, and the second isolation member is used to isolate air from entering the second intermediate pipe portion.

[0014] Optionally, the first valve assembly includes a valve body, a motor and a barrier member, the valve body is provided with a chamber and a sealing hole connected to the chamber, the chamber is connected to the first intermediate pipe portion and the water inlet pipe portion, the barrier member is movably disposed in the chamber of the valve body, the motor is connected to the valve body, and the telescopic end of the motor is disposed in the sealing hole; when the telescopic end of the motor is retracted to connect the sealing hole with the outside, the barrier member can be pushed open under the action of liquid pressure to open the passage between the water inlet pipe portion and the first intermediate pipe portion; when the telescopic end of the motor is extended to block the sealing hole, the barrier member blocks the liquid from passing through the passage between the water inlet pipe portion and the first intermediate pipe portion.

[0015] The embodiment of the utility model also adopts the following technical solution to solve its technical problem: an intelligent toilet, characterized in that it includes the above-mentioned flush valve and a toilet body, and the flush valve is installed on the toilet body.

[0016] The beneficial effects of the embodiment of the utility model are as follows: the flush valve provided by the embodiment of the present application includes a valve body, a side flush nozzle and a fastener, the valve body includes a side flush pipe part, the side flush pipe part is provided with a side water outlet, the side flush nozzle is provided with a first nozzle port and a second nozzle port which are arranged oppositely and connected, the first nozzle port is connected with the side water outlet, and the second nozzle port is used to spray liquid; the fastener is arranged around the side flush nozzle and the side flush pipe part, and the fastener is used to connect the side flush pipe part and the side flush nozzle. In this way, there is no need to connect the side flush nozzle separately through a braided tube or a rubber tube, but the side flush nozzle is directly connected to the side flush pipe part through a fastener, which saves the braided tube or the rubber tube, facilitates the assembly of the smart toilet, and is conducive to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 It is a structural schematic diagram of a flush valve of one embodiment of the present application;

[0019] Figure 2 yes Figure 1 The structural breakdown diagram of

[0020] Figure 3 yes Figure 2 Exploded view of the structure of the valve body;

[0021] Figure 4 yes Figure 3 Exploded view of some structures;

[0022] Figure 5 yes Figure 3 Schematic diagram of the structure of the middle valve cover;

[0023] Figure 6 It is a structural exploded view of the barrier;

[0024] Figure 7 It is a schematic diagram of the flow direction of water when the valve body is in a cross-sectional state;

[0025] In the figure: 1. flush valve; 2. valve body; 3. side flush nozzle; 4. fastener;

[0026] 21, side flushing pipe; 21a, side water outlet; 21b, external thread; 22, water inlet pipe; 23, first intermediate pipe; 24, first valve assembly; 25, bottom flushing pipe; 26, second intermediate pipe; 27, second valve assembly; 28, first isolating member; 29, second isolating member; 210, first valve ring; 211, second valve ring; 212, upper cover;

[0027] 241, valve body; 242, motor; 243, barrier; 2401, chamber; 2402, sealing hole; 2411, valve housing; 2412, valve cover; 24111, first communication port; 24112, second communication port; 24113, inner convex ring; 24114, outer convex ring;

[0028] 2431, piston part; 2432, fixing part; 2433, guide protrusion; 2434, limiting hole; 31, first nozzle opening; 32, second nozzle opening; 33, sealing ring; 41, internal thread. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0031] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] like Figure 1-2As shown, one embodiment of the present application provides a flush valve 1, comprising a valve body 2, a side flush nozzle 3 and a fastener 4, wherein the fastener 4 is used to install the side flush nozzle 3 on the valve body 2. Specifically, the valve body 2 comprises a side flush pipe portion 21, wherein the side flush pipe portion 21 is provided with a side water outlet 21a; the side flush nozzle 3 is provided with a first nozzle port 31 and a second nozzle port 32 which are arranged oppositely and connected, wherein the first nozzle port 31 is connected with the side water outlet 21a, and the second nozzle port 32 is used to spray liquid; the fastener 4 is arranged around the side flush nozzle 3 and the side flush pipe portion 21, and the fastener 4 is used to connect the side flush pipe portion 21 and the side flush nozzle 3.

[0033] In this way, there is no need to connect the side flush nozzle 3 separately through a braided tube or a rubber tube, but the side flush nozzle 3 is directly connected to the side flush pipe part 21 through the fastener 4, which saves the braided tube or rubber tube, facilitates the assembly of the smart toilet, and is conducive to improving production efficiency.

[0034] In some embodiments, Figure 2 As shown, the side flushing pipe part 21 is provided with an external thread 21b, the side flushing nozzle 3 is inserted into the side water outlet 21a, and the fastener 4 is provided with an internal thread 41, and the internal thread 41 is threadedly connected with the external thread 21b, so that the side flushing nozzle 3 and the side flushing pipe part 21 are relatively fixed. In this way, the side flushing nozzle 3 and the side flushing pipe part 21 can be quickly connected by only screwing the fastener 4, which is convenient for the assembly personnel to assemble. The fastener 4 can be a nut or other component with an internal thread 41, as long as it can connect the side flushing nozzle 3 to the side flushing pipe part 21.

[0035] It should be understood that, in addition to the above-mentioned threaded connection, the side flushing pipe portion 21 and the side flushing nozzle 3 may also be connected in other ways, as long as the fastener 4 can fasten the two together. For example, an elastic buckle may be used, that is, the side flushing pipe portion 21 and the side flushing nozzle 3 are both provided with elastic hooks, and the fastener 4 is provided with a buckling structure for the elastic hook to buckle, so that the fastener 4 can also connect the side flushing pipe portion 21 and the side flushing nozzle 3.

[0036] In some embodiments, Figure 2 As shown, in order to reduce the risk of water leakage at the connection between the side flushing pipe part 21 and the side flushing nozzle 3, a sealing ring 33 is sleeved on the side flushing nozzle 3. When the side flushing nozzle 3 is inserted into the side flushing pipe part 21, the sealing ring 33 can abut against the inner wall surface of the side flushing pipe part 21, thereby reducing the leakage of liquid from the gap between the inner wall surface of the side flushing pipe part 21 and the side flushing nozzle 3, which is beneficial to improve the sealing performance between the side flushing pipe part 21 and the side flushing nozzle 3.

[0037] In some embodiments, Figure 2-3As shown, the valve body 2 further includes a water inlet pipe 22, a first intermediate pipe 23 and a first valve assembly 24. The first intermediate pipe 23 is in communication with the side flush pipe 21. The water inlet pipe 22 and the side flush pipe 21 are both connected to the first valve assembly 24. The first valve assembly 24 is used to control the communication or cutoff between the first intermediate pipe 23 and the water inlet pipe 22. That is, when the first valve assembly 24 is in an open state, the first intermediate pipe 23 and the water inlet pipe 22 can be in communication with each other, and the liquid can flow from the water inlet pipe 22 through the first valve assembly 24 and flow to the first intermediate pipe 23; when the first valve assembly 24 is in a closed state, the first intermediate pipe 23 and the water inlet pipe 22 are in a cutoff state, and the liquid cannot flow to the first intermediate pipe 23 through the first valve assembly 24.

[0038] In some embodiments, the water inlet pipe portion 22 and the side flush pipe portion 21 are respectively located on two adjacent sides of the first valve assembly 24. In this way, compared with the design of setting the water inlet pipe portion 22 and the side flush pipe portion 21 on the same side which causes the overall thickness of the valve body 2 to become thicker, it is beneficial to reduce the overall thickness of the valve body 2 and avoid the valve body 2 occupying more space.

[0039] In some embodiments, the valve body 2 also includes a bottom flushing pipe portion 25, and the bottom flushing pipe portion 25 and the water inlet pipe portion 22 are located on the same side of the first valve assembly 24, that is, the bottom flushing pipe portion 25 and the water inlet pipe portion 22 are spaced apart. The bottom flushing pipe portion 25 can spray out the liquid flowing into the water inlet pipe portion 22, thereby achieving the effect of cleaning the toilet.

[0040] In some embodiments, Figure 3 As shown, the valve body 2 further includes a second intermediate pipe portion 26 and a second valve assembly 27. The second intermediate pipe portion 26 is in communication with the bottom flush pipe portion 25. The second valve assembly 27 is connected to the water inlet pipe portion 22 and the second intermediate pipe portion 26, respectively. The second valve assembly 27 is used to control the second intermediate pipe portion 26 to be in communication or cut-off with the water inlet pipe portion 22. That is, when the second valve assembly 27 is in an open state, the second intermediate pipe portion 26 and the water inlet pipe portion 22 can be in communication with each other, and the liquid can flow from the water inlet pipe portion 22 through the second valve assembly 27 and flow to the second intermediate pipe portion 26; when the second valve assembly 27 is in a closed state, the second intermediate pipe portion 26 and the water inlet pipe portion 22 are in a cut-off state, and the liquid cannot flow to the second intermediate pipe portion 26 through the second valve assembly 27.

[0041] In some embodiments, Figure 2As shown, along the water inlet direction of the water inlet pipe 22, the distance between the first valve assembly 24 and the water inlet of the water inlet pipe 22 is greater than the distance between the second valve assembly 27 and the water inlet of the water inlet pipe 22. In this way, compared with the method of arranging the first valve assembly 24 and the second valve assembly 27 side by side, the present application staggers the first valve assembly 24 and the second valve assembly 27 by a certain distance, which can reduce the space occupied by the two in the direction perpendicular to the water inlet pipe 22, and is conducive to reducing the space occupied by the valve body 2.

[0042] It should be noted that the first valve assembly 24 and the second valve assembly 27 may have the same structure or different structures, which can be selected according to needs. In this embodiment, the first valve assembly 24 and the second valve assembly 27 have the same structure. The structure of the first valve assembly 24 is taken as an example for description.

[0043] In some embodiments, Figure 3-4 As shown, the first valve assembly 24 includes a valve body 241, a motor 242 and a barrier 243. The valve body 241 is provided with a chamber 2401 and a sealing hole 2402 communicating with the chamber 2401. The barrier 243 is movably arranged in the chamber 2401 of the valve body 241. The motor 242 is connected to the valve body 241, and the telescopic end of the motor 242 is arranged in the sealing hole 2402. When the telescopic end of the motor 242 is retracted to communicate the sealing hole 2402 with the outside, the barrier 243 can be pushed open under the action of liquid pressure to open the passage between the water inlet pipe part 22 and the first intermediate pipe part 23; when the telescopic end of the motor 242 is extended to block the sealing hole 2402, the barrier 243 blocks the liquid from passing through the passage between the water inlet pipe part 22 and the first intermediate pipe part 23.

[0044] like Figure 4 and Figure 5 As shown, the valve body 241 includes a valve housing 2411 and a valve cover 2412 covering the valve housing 2411. A chamber 2401 is formed between the valve housing 2411 and the valve cover 2412. The valve cover 2412 is provided with a sealing hole 2402. The chamber 2401 is provided with a first communication port 24111, a second communication port 24112, an inner convex ring 24113 and an outer convex ring 24114. The first communication port 24111 is connected to the water inlet pipe. The first intermediate tube 23 and the chamber 2401 are connected to the second connecting port 24112. The inner convex ring 24113 can prevent the liquid entering the chamber 2401 from the first connecting port 24111 and directly flowing to the second connecting port 24112. The outer convex ring 24114 can resist the blocking member 243. Part of the blocking member 243 is arranged on the inner convex ring 24113 to prevent the liquid from flowing into the second connecting port 24112. In this embodiment, please combine Figure 3 and Figure 6The blocking member 243 includes a detachably connected piston portion 2431 and a fixing portion 2432 , the fixing portion 2432 is disposed between the valve housing 2411 and the valve cover 2412 , the piston portion 2431 is movable relative to the fixing portion 2432 , and the piston portion 2431 is used to block the second communication port 24112 .

[0045] When the telescopic end of the motor 242 is extended, the sealing hole 2402 is blocked by the telescopic end of the electrode. At this time, the chamber 2401 is in a sealed state. When liquid enters from the water inlet pipe portion 22, due to the action of the internal air pressure of the chamber 2401, the liquid cannot push open the barrier 243. At this time, the second connecting port 24112 cannot be connected with the chamber 2401 due to the action of the barrier 243, that is, the barrier 243 blocks the liquid from passing through the channel between the water inlet pipe portion 22 and the first intermediate pipe portion 23, and the first intermediate pipe portion 23 and the water inlet pipe portion 22 are in a cutoff state. When the telescopic end of the motor 242 is retracted, the sealing hole 2402 is connected to the outside world. When liquid enters from the water inlet pipe portion 22, since the pressure in the chamber 2401 is the same as the external atmospheric pressure, the liquid can enter the chamber 2401 and lift the piston portion 2431, so that the second connecting port 24112 is connected to the chamber 2401, thereby opening the channel between the water inlet pipe portion 22 and the first intermediate pipe portion 23, and the liquid can enter the first intermediate pipe portion 23 and then flow to the side flushing pipe portion 21.

[0046] In some embodiments, Figure 6 As shown, the piston part 2431 is provided with a guide protrusion 2433, the fixing part 2432 is provided with a limiting hole 2434, and the guide protrusion 2433 is inserted into the limiting hole 2434. In this way, when the piston part 2431 is pushed and moved relative to the fixing part 2432 by the liquid, under the action of the guide protrusion 2433 and the limiting hole 2434, the piston part 2431 can move in a directional manner relative to the fixing part 2432, thereby reducing the risk that the piston part 2431 cannot be accurately reset after being separated from the fixing part 2432.

[0047] In some embodiments, Figure 7 As shown, the valve body 2 also includes a first isolation member 28 and a second isolation member 29. The first isolation member 28 is arranged at the output end of the first intermediate pipe portion 23, and the second isolation member 29 is arranged at the output end of the second intermediate pipe portion 26. The first isolation member 28 is used to isolate air from entering the first intermediate pipe portion 23, and the second isolation member 29 is used to isolate air from entering the second intermediate pipe portion 26.

[0048] It is understood that when the liquid flows to the output end of the first intermediate pipe part 23, the first isolating member 28 can be pushed by the liquid to open the connection channel between the first intermediate pipe part 23 and the side flushing pipe part 21, so that the liquid enters the side flushing pipe part 21, and when the liquid supply is stopped, the first isolating member 28 will return to the initial position to isolate the first intermediate pipe part 23 from the side flushing pipe part 21. Similarly, the second isolating member 29 can also isolate the second intermediate pipe part 26 and the bottom flushing pipe part 25, and can also open the connection channel between the second intermediate pipe part 26 and the bottom flushing pipe part 25 under the action of the liquid impact force. It should be understood that in addition to isolating the air from entering the first intermediate pipe part 23, the first isolating member 28 can also prevent the liquid from flowing back to the first intermediate pipe part 23 through the side flushing pipe part 21. Similarly, in addition to isolating the air, the second isolating member 29 can also isolate the air, which will not be repeated here.

[0049] In some embodiments, please combine Figure 4 and Figure 7 The valve body 2 further includes a first valve ring 210, a second valve ring 211 and an upper cover 212. The first valve ring 210 is arranged around the output end of the first intermediate pipe part 23 and the inlet end of the side flush pipe part 21, the second valve ring 211 is arranged around the output end of the second intermediate pipe part 26 and the inlet end of the bottom flush pipe part 25, and the upper cover 212 covers the first valve ring 210 and the second valve ring 211. The upper cover 212 is provided with an escape space for the first isolation member 28 and the second isolation member 29 to move, so that the first isolation member 28 and the second isolation member 29 can move toward the escape space when impacted by liquid.

[0050] The flush valve 1 provided in the embodiment of the present application comprises a valve body 2, a side flush nozzle 3 and a fastener 4, wherein the valve body 2 comprises a side flush pipe portion 21, the side flush pipe portion 21 is provided with a side water outlet 21a, the side flush nozzle 3 is provided with a first nozzle port 31 and a second nozzle port 32 which are arranged oppositely and connected, the first nozzle port 31 is connected with the side water outlet 21a, and the second nozzle port 32 is used to spray liquid; the fastener 4 is arranged around the side flush nozzle 3 and the side flush pipe portion 21, and the fastener 4 is used to connect the side flush pipe portion 21 and the side flush nozzle 3. In this way, there is no need to connect the side flush nozzle 3 separately through a braided tube or a rubber tube, but the side flush nozzle 3 is directly connected to the side flush pipe portion 21 through the fastener 4, which saves the braided tube or the rubber tube, facilitates the assembly of the smart toilet, and is conducive to improving production efficiency.

[0051] Another embodiment of the present application provides a smart toilet, which includes the flush valve 1 in the above embodiment and a toilet body, wherein the flush valve 1 is installed on the toilet body.

[0052] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A flush valve, characterized in that: include: The valve body comprises a side flushing pipe portion, wherein the side flushing pipe portion is provided with a side water outlet; A side-flushing nozzle is provided with a first nozzle opening and a second nozzle opening which are arranged opposite to and connected to each other, wherein the first nozzle opening is connected to the side water outlet, and the second nozzle opening is used for spraying liquid; A fastener is arranged around the side flushing nozzle and the side flushing pipe portion, and the fastener is used to connect the side flushing pipe portion and the side flushing nozzle.

2. The flush valve according to claim 1, characterized in that: The side flushing pipe portion is provided with an external thread, the side flushing nozzle is inserted into the side water outlet, and the fastener is provided with an internal thread, and the internal thread is threadedly connected to the external thread so that the side flushing nozzle and the side flushing pipe portion are relatively fixed.

3. The flush valve according to claim 1, characterized in that: The valve body also includes a water inlet pipe portion, a first intermediate pipe portion and a first valve assembly. The first intermediate pipe portion is connected to the side flush pipe portion. The water inlet pipe portion and the side flush pipe portion are both connected to the first valve assembly. The first valve assembly is used to control the connection or cutoff between the first intermediate pipe portion and the water inlet pipe portion.

4. The flush valve according to claim 3, characterized in that: The water inlet pipe portion and the side flushing pipe portion are respectively located on two adjacent sides of the first valve assembly.

5. The flush valve according to claim 3, characterized in that: The valve body further comprises a bottom flushing pipe portion, and the bottom flushing pipe portion and the water inlet pipe portion are both located on the same side of the first valve assembly.

6. The flush valve according to claim 5, characterized in that: The valve body also includes a second intermediate pipe portion and a second valve assembly, the second intermediate pipe portion is connected to the bottom flush pipe portion, the second valve assembly is respectively connected to the water inlet pipe portion and the second intermediate pipe portion, and the second valve assembly is used to control the second intermediate pipe portion to be connected or cut off with the water inlet pipe portion.

7. The flush valve according to claim 6, characterized in that: Along the water inlet direction of the water inlet pipe, the distance between the first valve assembly and the water inlet of the water inlet pipe is greater than the distance between the second valve assembly and the water inlet of the water inlet pipe.

8. The flush valve according to claim 6, characterized in that: The valve body also includes a first isolating member and a second isolating member. The first isolating member is arranged at the output end of the first intermediate pipe portion, and the second isolating member is arranged at the output end of the second intermediate pipe portion. The first isolating member is used to isolate air from entering the first intermediate pipe portion, and the second isolating member is used to isolate air from entering the second intermediate pipe portion.

9. The flush valve according to any one of claims 3 to 8, characterized in that: The first valve assembly includes a valve body, a motor and a barrier, the valve body is provided with a chamber and a sealing hole connected to the chamber, the chamber is connected to the first intermediate pipe part and the water inlet pipe part, the barrier is movably arranged in the chamber of the valve body, the motor is connected to the valve body, and the telescopic end of the motor is arranged in the sealing hole; When the telescopic end of the motor is retracted to connect the sealing hole with the outside, the barrier can be pushed open under the action of liquid pressure to open the passage between the water inlet pipe part and the first intermediate pipe part; when the telescopic end of the motor is extended to block the sealing hole, the barrier prevents the liquid from passing through the passage between the water inlet pipe part and the first intermediate pipe part.

10. A smart toilet, characterized in that: It comprises a flush valve as described in any one of claims 1 to 9 and a toilet body, wherein the flush valve is installed on the toilet body.

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