Water inlet valve, flushing system and smart toilet

Abstract

This invention discloses a water inlet valve, a flushing system, and a smart toilet. The water inlet valve includes a fixed toilet seat and a valve body. The fixed toilet seat has an installation cavity and is equipped with an inlet pipe and an outlet pipe communicating with the installation cavity. The inlet pipe is used to connect to a water supply source. The valve body is installed in the installation cavity and has an inlet channel, a first outlet channel, and a second outlet channel. One end of the inlet channel is connected to both the first and second outlet channels; the other end of the inlet channel is connected to the inlet pipe. The second outlet channel is connected to the outlet pipe for assisting in flushing the toilet. The first outlet channel is connected to the installation cavity for replenishing water to the water tank. This invention eliminates the need for a water pump or other energy storage device to assist in flushing. By using the water inlet valve, tap water is utilized for auxiliary flushing, improving both the flushing effect and the cleaning performance.

Description

Technical Field

[0001] This invention relates to the field of bathroom technology, and in particular to a water inlet valve, a flushing system, and a smart toilet. Background Technology

[0002] Most existing flat-bottom toilets are equipped with an inlet valve and a drain valve. The inlet valve has one inlet and one outlet, and it can only replenish the toilet tank. The drain valve only flushes the toilet seat. Flat-bottom toilets do not have a protruding tank, so the water level is low and the potential energy is insufficient. The flushing effect is poor because the toilet only flushes through the drain valve. Summary of the Invention

[0003] The main objective of this invention is to provide a water inlet valve, a flushing system, and a smart toilet, designed to eliminate the need for energy storage devices such as water pumps during flushing. Instead, the toilet is flushed using tap water, which not only improves flushing efficiency but also provides superior cleaning. Furthermore, the water inlet valve is small in size, allowing for wider application in various locations, such as small water tanks like standard tanks and wall-mounted tanks.

[0004] To achieve the above objectives, the water inlet valve proposed in this invention includes:

[0005] A fixed bucket base is provided, wherein the fixed bucket base has an installation cavity, and the fixed bucket base is provided with an inlet pipe and an outlet pipe communicating with the installation cavity, wherein the inlet pipe is used to communicate with a water supply source;

[0006] The valve body is installed in the mounting cavity. The valve body has a water inlet channel, a first water outlet channel, and a second water outlet channel. One end of the water inlet channel is connected to the first water outlet channel and the second water outlet channel, respectively. The other end of the water inlet channel is connected to the water inlet pipe. The second water outlet channel is connected to the water outlet pipe for assisting in flushing the toilet. The first water outlet channel is connected to the mounting cavity for replenishing water to the water tank.

[0007] In an optional embodiment, the valve body has a first back pressure chamber and a second back pressure chamber, the first back pressure chamber being connected to the first water outlet channel, and the second back pressure chamber being connected to the second water outlet channel; the mounting cavity has a first cavity and a second cavity spaced apart, the water outlet pipe and the water inlet pipe being spaced apart in the second cavity, and the first water outlet channel being connected to the first cavity;

[0008] The inlet valve also includes a first float mechanism and a second float mechanism. One end of the first float mechanism is located in the first cavity, and the other end has a pressure relief port that can be blocked or opened in the first back pressure cavity.

[0009] One end of the second float mechanism is located in the second cavity, and the other end has a pressure relief port that can be used to block or open the second back pressure cavity.

[0010] In an optional embodiment, the first float mechanism includes a first float and a first tie rod, the first tie rod being disposed on one side of the first float, and the first float being movably disposed within the first cavity;

[0011] The second float mechanism includes a second float and a second tie rod, the second tie rod being disposed on one side of the second float, and the second float being movably disposed within the second cavity;

[0012] The inlet valve also includes two linkage mechanisms. The first pull rod is connected to one of the linkage mechanisms at the end away from the first float, so as to block the pressure relief port of the first back pressure chamber through the linkage mechanism.

[0013] The second tie rod is connected at one end away from the second float to another linkage mechanism, so as to movably block the pressure relief port of the second back pressure chamber through the linkage mechanism.

[0014] In an optional embodiment, the second float includes a water storage chamber and a buoyancy chamber spaced apart. The second tie rod is connected to the bottom wall of the water storage chamber. The bottom wall of the water storage chamber is provided with a drain hole. The water in the water storage chamber is discharged from the drain hole as the water level in the second cavity falls, so that the second float falls or floats in the second cavity, thereby driving the linkage mechanism to move and block the pressure relief port of the second back pressure chamber.

[0015] In an optional embodiment, the inlet valve further includes a delay mechanism installed on the bottom wall of the first cavity to slow down the water outflow speed of the first cavity, thereby slowing down the descent speed of the first float mechanism.

[0016] In an optional embodiment, a first water passage is formed in the first cavity, and a water outlet is provided on the bottom wall of the first cavity, the first water passage being connected to the water outlet;

[0017] The delay mechanism includes a delay valve and a delay float. The delay valve is rotatably installed in the first water passage. One end of the delay float is movably inserted into the first water passage, and the other end of the delay float extends out of the valve body. The delay float is used to movably block the water outlet.

[0018] In an optional embodiment, the first water passage has water passage holes on its surface opposite to the water outlet;

[0019] The delay valve includes a water-blocking plate structure and a rotary adjustment structure connected together. The rotary adjustment structure is exposed on the outer peripheral wall of the valve body at the end away from the water-blocking plate structure. The water-blocking plate structure passes through the first water passage. By rotating the rotary adjustment structure, the water-blocking plate structure is driven to rotate within the first water passage so that the water-blocking plate structure at least partially covers the water passage hole.

[0020] In an optional embodiment, the cross-section of the water-blocking plate structure is semi-circular.

[0021] The present invention also proposes a flushing system, the flushing system comprising a water tank, a drain valve and an inlet valve as described in any of the preceding claims, wherein the drain valve and the inlet valve are spaced apart in the water tank, the drain valve is used to flush the toilet, and the inlet valve is used to replenish the water tank and assist the drain valve in flushing the toilet.

[0022] The present invention also proposes an intelligent toilet, including a toilet seat, wherein the toilet seat is provided with a flushing system as described above.

[0023] The water inlet valve of this invention includes a fixed base and a valve body. The fixed base has an installation cavity, and is equipped with an inlet pipe and an outlet pipe communicating with the installation cavity. The inlet pipe is used to connect to a water supply source. The valve body is installed in the installation cavity and has an inlet channel, a first outlet channel, and a second outlet channel. One end of the inlet channel is connected to both the first and second outlet channels. The other end of the inlet channel is connected to the inlet pipe, and the second outlet channel is connected to the outlet pipe for assisting in flushing the toilet. The first outlet channel is connected to the installation cavity for replenishing water to the water tank. When flushing the toilet, no energy storage device such as a water pump is used for auxiliary flushing. The inlet valve utilizes tap water for auxiliary flushing, which not only improves the flushing effect but also provides a better cleaning result. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the water inlet valve of the present invention;

[0026] Figure 2 for Figure 1 The exploded view of the inlet valve shown;

[0027] Figure 3 for Figure 1 The diagram shows the installation structure of the inlet valve and water tank.

[0028] Figure 4 for Figure 2 A schematic diagram of the installation structure of the fixed bucket seat, the first float mechanism, and the second float mechanism in the inlet valve shown.

[0029] Figure 5 for Figure 4 The diagram shows the structure of the fixed bucket seat in the inlet valve.

[0030] Figure 6 for Figure 4 A sectional view of the fixed bucket base shown;

[0031] Figure 7 for Figure 6 Enlarged view at point A;

[0032] Figure 8 for Figure 6 The diagram shows the structure of the time-delay valve.

[0033] Figure 9 for Figure 2 The diagram shows a structural schematic of the valve body from another perspective.

[0034] Explanation of icon numbers:

[0035]

[0036]

[0037] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0042] This invention proposes a water inlet valve, a flushing system, and a smart toilet, which aims to achieve toilet flushing without the need for energy storage tools such as water pumps. Instead, the water inlet valve utilizes tap water for auxiliary flushing, which not only improves the flushing effect but also provides a better cleaning result.

[0043] Please refer to Figures 1 to 9 The specific structure of the water inlet valve 10 proposed in this invention will be described below in a specific embodiment. In one embodiment of this invention, the water inlet valve 10 includes a fixed bucket seat 1 and a valve body 2. The fixed bucket seat 1 forms an installation cavity 11. The fixed bucket seat 1 is provided with a water inlet pipe 111 and a water outlet pipe 112 communicating with the installation cavity 11. The water inlet pipe 111 is used to communicate with a water supply source. The valve body 2 is installed in the installation cavity 11. The valve body 2 has a water inlet channel 21, a first water outlet channel 22 and a second water outlet channel 23. One end of the water inlet channel 21 is connected to the first water outlet channel 22 and the second water outlet channel 23 respectively. The other end of the water inlet channel 21 is connected to the water inlet pipe 111. The second water outlet channel 23 is connected to the water outlet pipe 112 to assist in flushing the toilet. The first water outlet channel 22 is connected to the installation cavity 11 to replenish water to the water tank 20.

[0044] As can be seen, during toilet flushing, the inlet valve 10 is used to replenish water into the water tank 20 when the water level in the tank 20 is lower than the working water level, while the drain valve is used to draw water from the water tank 20 to clean the toilet. Therefore, one end of the inlet valve 10 is connected to the water supply source, and the other end of the inlet valve 10 is connected to the water tank 20, so that water enters the water tank 20 through the inlet valve 10 in sequence, so as to replenish the water tank 20 in time and ensure that the drain valve can flush the toilet smoothly.

[0045] In this embodiment, the water inlet valve 10 includes a fixed base 1, which is installed inside the water tank 20. A mounting cavity 11 is formed within the fixed base 1, and an inlet pipe 111 and an outlet pipe 112 are disposed within the mounting cavity 11, spaced apart. It should be noted that one end of the outlet pipe 112 extends and protrudes into the mounting cavity 11, while the other end passes through the fixed base 1 and the water tank 20, extending to the toilet. The inlet pipe 111 protrudes into and passes through the mounting cavity 11.

[0046] Specifically, the inlet valve 10 also includes a valve body 2, which is installed in the mounting cavity 11. The valve body 2 has an inlet channel 21, a first outlet channel 22, and a second outlet channel 23. One end of the inlet channel 21 is connected to the first outlet channel 22 and the second outlet channel 23, and the other end of the inlet channel 21 is connected to the inlet pipe 111 and the water supply source. Water then enters the first outlet channel 22 and the second outlet channel 23 through the inlet channel 21. The second outlet channel 23 is connected to the outlet pipe 112. Since one end of the outlet pipe 112 passes through the fixed bucket seat 1 and the water tank 20 and is aligned with the toilet, water flows into the toilet from the second outlet channel 23 and the outlet pipe 112 to provide auxiliary flushing for the toilet. The first water outlet channel 22 is directly connected to the mounting cavity 11. When water enters the first water outlet channel 22 from the water inlet channel 21, it flows directly into the water tank 20, thereby replenishing the water tank 20. By installing the water inlet channel 21 and the second water outlet channel 23 of the valve body 2 onto the water inlet pipe 111 and the water outlet pipe 112 respectively, the stability of the valve body 2 installed in the fixed toilet seat 1 is improved. It should be noted that the water inlet pipe 111 and the water outlet pipe 112 are cylindrical, and a water-passing cavity is formed in the water outlet pipe 112 so that water in the second water outlet channel 23 flows into the water outlet pipe 112, thereby facilitating the smooth flow of water from the water outlet pipe 112 into the toilet bowl for flushing.

[0047] Furthermore, the water inlet valve 10 also includes a water inlet connecting rod 7. One end of the water inlet connecting rod 7 is connected to the water supply source, and the other end of the water inlet connecting rod 7 is connected to the water inlet pipe 111. The water inlet connecting rod 7 is connected to the water inlet pipe 111. The water inlet connecting rod 7 has a water inlet chamber 71 and a water outlet chamber 72. The water inlet chamber 71 is connected to the water inlet pipe 111, and the water outlet chamber 72 is connected to the first water outlet channel 22. Thus, the water from the water supply source enters the water inlet channel 21 of the valve body 2 through the water inlet chamber 71, and the water from the first water outlet channel 22 enters the water tank 20 through the water outlet chamber 72 of the water inlet connecting rod 7.

[0048] Please refer to Figures 3 to 5 In an optional embodiment, the valve body 2 has a first back pressure chamber 24 and a second back pressure chamber 25. The first back pressure chamber 24 is connected to the first water outlet channel 22, and the second back pressure chamber 25 is connected to the second water outlet channel 23. The mounting cavity 11 has a first cavity 1a and a second cavity 1b spaced apart. The water outlet pipe 112 and the water inlet pipe 111 are spaced apart in the second cavity 1b, and the second water outlet channel 23 is connected to the second cavity 1b.

[0049] The inlet valve 10 also includes a first float mechanism 3 and a second float mechanism 4. One end of the first float mechanism 3 is located in the first cavity 1a, and the other end has a state of blocking or opening the pressure relief port of the first back pressure cavity 24, thereby controlling the opening and closing of the inlet channel 21 and the first outlet channel 22.

[0050] One end of the second float mechanism 4 is located in the second cavity 1b, and the other end has a pressure relief port that can block or open the second back pressure cavity 25, thereby controlling the connection and disconnection between the water inlet channel 21 and the second water outlet channel 23.

[0051] In this embodiment, the valve body 2 has a first back pressure chamber 24 and a second back pressure chamber 25. The first back pressure chamber 24 is connected to the first water outlet channel 22, and the second back pressure chamber 25 is connected to the second water outlet channel 23. The inlet valve 10 also includes a first float mechanism 3 and a second float mechanism 4. The mounting cavity 11 has a first cavity 1a and a second cavity 1b formed at intervals. The first cavity 1a is not connected to the second cavity 1b. It can be understood that a partition is installed in the mounting cavity 11 to divide the mounting cavity 11 into the first cavity 1a and the second cavity 1b that are not connected. Meanwhile, the outlet pipe 112 and the inlet pipe 111 are spaced apart in the second cavity 1b, while one end of the first float mechanism 3 is located in the first cavity 1a, and the other end of the first float mechanism 3 is capable of blocking or opening the pressure relief port of the first back pressure chamber 24. Thus, the other end of the first float mechanism 3 can be movably blocked at the pressure relief port of the first back pressure chamber 24, thereby controlling the connection and disconnection between the inlet channel 21 and the first outlet channel 22, thereby enabling the first outlet 114 to replenish water to the water tank 20. One end of the second float mechanism 4 is located in the second cavity 1b, and the other end of the second float mechanism 4 is capable of blocking or opening the pressure relief port of the second back pressure chamber 25, thereby controlling the connection and disconnection between the inlet channel 21 and the second outlet channel 23, thereby enabling the second outlet channel 23 to flush the toilet.

[0052] Specifically, the first float mechanism 3 is used to open or close the pressure relief port of the first back pressure chamber 24 to open or close the flow path between the first water outlet channel 22 and the first back pressure chamber 24. That is, when the first float mechanism 3 closes or blocks the pressure relief port of the first back pressure chamber 24, the flow path between the inlet pipe 111 and the first water outlet channel 22 is cut off, and the water in the inlet channel 21 cannot flow to the water tank 20 through the first back pressure chamber 24 and the first water outlet channel 22. Similarly, when the first float mechanism 3 opens the pressure relief port of the first back pressure chamber 24, the flow path between the inlet pipe 111 and the first water outlet channel 22 is opened, and the water in the inlet channel 21 flows to the water tank 20 through the first back pressure chamber 24 and the first water outlet channel 22 to replenish the water tank 20.

[0053] Furthermore, the second float mechanism 4 is used to open or close the pressure relief port of the second back pressure chamber 25 to open or close the flow path between the second water outlet channel 23 and the second back pressure chamber 25. That is, when the second float mechanism 4 closes the pressure relief port of the second back pressure chamber 25, the flow path between the inlet pipe 111 and the second water outlet channel 23 is cut off, and water in the inlet channel 21 cannot flow to the toilet through the second back pressure chamber 25 and the second water outlet channel 23. Similarly, when the second float mechanism 4 opens the pressure relief port of the second back pressure chamber 25, the flow path between the inlet pipe 111 and the second water outlet channel 23 is opened, and water in the inlet channel 21 flows to the toilet through the second back pressure chamber 25 and the second water outlet channel 23 to flush the toilet.

[0054] It should be noted that the first float mechanism 3 and the second float mechanism 4 can move within the first cavity 1a and the second cavity 1b respectively under the buoyancy of the water and their own weight.

[0055] Please refer to Figures 3 to 9 In an optional embodiment, the first float mechanism 3 includes a first float 31 and a first pull rod 32. The first pull rod 32 is disposed on one side of the first float 31, and the first float 31 is movably disposed in the first cavity 1a.

[0056] The second float mechanism 4 includes a second float 41 and a second tie rod 42. The second tie rod 42 is located on one side of the second float 41, and the second float 41 is movably located within the second cavity 1b.

[0057] The inlet valve 10 also includes two linkage mechanisms 5. The first pull rod 32 is connected to one of the linkage mechanisms 5 at the end away from the first float 31, so as to block the pressure relief port of the first back pressure chamber 24 through the linkage mechanism 5.

[0058] The second tie rod 42 is connected to another linkage mechanism 5 at the end away from the second float 41, so as to movably block the pressure relief port of the second back pressure chamber 25 through the linkage mechanism 5. The first float mechanism 3 and the second float mechanism 4 respectively drive the two linkage mechanisms 5 to movably block the pressure relief ports of the first back pressure chamber 24 and the second back pressure chamber 25.

[0059] In this embodiment, in order to facilitate the active sealing of the pressure relief port of the first back pressure chamber 24, the water inlet valve 10 also includes two linkage mechanisms 5. The first float mechanism 3 includes a first float 31 and a first pull rod 32. The first float 31 is movably connected to the first cavity 1a, and the first pull rod 32 is connected to one side of the first float 31. The end of the first pull rod 32 away from the first float 31 is connected to one of the linkage mechanisms 5. Then, under the buoyancy of the water and its own weight, the first float mechanism 3 drives the linkage mechanism 5 to actively seal the pressure relief port of the first back pressure chamber 24, so as to control the water outflow of the first water outlet channel 22 in real time according to the water level in the water tank 20.

[0060] Meanwhile, in order to facilitate the movable sealing of the pressure relief port of the second back pressure chamber 25, the second float mechanism 4 includes a second float 41 and a second tie rod 42. The second tie rod 42 is located on one side of the second float 41. The second float 41 is movably connected to the second cavity 1b, and the second tie rod 42 is connected to one side of the second float 41. The end of the second tie rod 42 away from the second float 41 is connected to another linkage mechanism 5. Thus, under the buoyancy of the water and its own weight, the second float mechanism 4 drives the linkage mechanism 5 to movablely seal the pressure relief port of the second back pressure chamber 25, so as to control the water outlet of the second water outlet channel 23 in real time according to the water level in the water tank 20, so as to flush the toilet.

[0061] Specifically, the valve body 2 is provided with an upper end seat 26, which is located on the side of the valve body 2 opposite to the water inlet channel 21. The upper end seat 26 is divided into two movable areas 261, where one linkage mechanism 5 is installed on one movable area 261 and the other linkage mechanism 5 is installed on the other movable area 261. It should be noted that the movable area 261 is a groove with two side walls. Each linkage mechanism 5 includes a first back rod 51, a second back rod 52 and a sealing piston 53. One end of the first pull rod 32 is movably connected to one end of the first back rod 51. The end of the first back rod 51 away from the first pull rod 32 is movably connected to the side wall of the groove. The first back rod 51 is movably connected to the second back rod 52, and the second back rod 52 is movably connected inside the groove, thereby allowing the second back rod 52 to rotate inside the groove. The sealing piston 53 is mounted on the second back rod 52, and thus, driven by the first back rod 51 and the second back rod 52, the sealing piston 53 can be movably sealed on the pressure relief port.

[0062] Furthermore, the upper end seat 26 also includes an overflow port 263, which protrudes from the surface of the upper end seat 26 and from the side of the fixed bucket seat 1. At the same time, a water inlet 262 is provided on the movable area 261. When the pressure relief port on the first back pressure chamber 24 or the second back pressure chamber 25 is opened, a portion of water will flow out from the pressure relief port. The water flowing out is guided to the overflow port 263 through the pressure relief port and flows out of the water tank 20 through the overflow port 263, avoiding flowing into the float of the water inlet valve 10.

[0063] It should be further noted that the second cavity 1b has multiple water passages 115 on the side of its wall away from the water inlet pipe 111, allowing water from the water tank 20 to enter the second cavity 1b through these water passages 115. Therefore, when the drain valve starts working, the water level in the water tank 20 drops, and the water in the second cavity 1b is discharged from the water passages 115, thereby causing the second float 41 to descend.

[0064] Meanwhile, the upper base also has an installation area located on one side of the movable area. An anti-siphon mechanism is installed in the installation area, comprising a fixed base and a movable frame. An installation channel is provided within the installation area, connecting to the first back pressure chamber. The movable frame is movably installed within the installation channel, which also connects to the first back pressure chamber. Therefore, when the pressure relief port of the first back pressure chamber 24 is opened, water flows through the installation channel, lifting the movable frame. The water then enters the first water outlet channel through the installation channel. Water in the water inlet channel 21 flows through the first back pressure chamber 24 and the first water outlet channel 22 to the water tank 20, replenishing the water tank 20. Similarly, when the pressure relief port of the first back pressure chamber 24 is closed, water flows through the installation channel, preventing the movable frame from continuing to lift. Under the influence of gravity, the movable frame re-seals the installation channel. Meanwhile, the fixed seat is installed on the installation area to cover the movable frame on the installation frame, so as to prevent water from flowing out of the installation area into the valve body. It is understood that the fixed seat can be installed on the installation area by screws or the like.

[0065] Please refer to Figures 3 to 7 In an optional embodiment, the second float 41 includes a water storage chamber 411 and a buoyancy chamber 412 spaced apart. The second tie rod 42 is connected to the bottom wall of the water storage chamber 411. The bottom wall of the water storage chamber 411 is provided with a drain hole. The water in the water storage chamber 411 is discharged from the drain hole as the water level in the second cavity 1b falls, so that the second float 41 falls or floats in the second cavity 1b, thereby driving the linkage mechanism 5 to move and block the pressure relief port of the second back pressure chamber 25.

[0066] In this embodiment, to facilitate the raising and lowering of the second float 41 according to the water level changes in the water tank 20, the second float 41 includes a water storage chamber 411 and a buoyancy chamber 412 spaced apart. The water storage chamber 411 is positioned above the buoyancy chamber 412, and a partition separates them. A drain hole passes through the partition, connecting the water storage chamber 411 and the buoyancy chamber 412. One end of the second pull rod 42 is connected to the bottom wall of the water storage chamber 411. Multiple drain holes are also provided on the bottom wall of the water storage chamber 411, and their diameters are relatively small. A buoyancy element 4121 is provided within the buoyancy chamber 412. Therefore, when the water tank 20 is full, both the first float 31 and the second float 41 are buoyant, driving the linkage mechanism 5 to block the first back pressure chamber 24 and the second back pressure chamber 25 respectively. When the water tank 20 is in the draining state, a delay mechanism 6 is installed in the first cavity 1a, so the water in the first cavity 1a flows out slowly. Therefore, the first float 31 will not sink in the early stage of draining. Meanwhile, the water in the second cavity 1b is discharged into the water tank 20 through the water passage 115, which leads to a decrease in the water in the second cavity 1b. Since the water in the water storage cavity 411 flows out of the drain hole slowly, the gravity on the second float 41 is greater than the buoyancy on the second float 41, so the second float 41 sinks. This causes the linkage mechanism 5 to open the pressure relief port of the second back pressure chamber 25, and the flow path between the water inlet pipe 111 and the second water outlet channel 23 is opened. The water in the water inlet channel 21 flows to the toilet through the second back pressure chamber 25 and the second water outlet channel 23 to flush the toilet. When the water tank 20 is in a continuous drainage state, the water level in the water tank 20 keeps dropping, and the first float 31 drops. At this time, the linkage mechanism 5 drives the opening of the pressure relief port of the first back pressure chamber 24. The water in the water inlet channel 21 flows to the water tank 20 through the first back pressure chamber 24 and the first water outlet channel 22 to replenish the water tank 20. Furthermore, when the water level in the water tank 20 drops to a certain height, the water in the storage chamber 411 of the second float 41 has been drained. Due to the action of the buoyancy component 4121, the buoyancy of the second float 41 is greater than its weight, and the second float 41 is in a floating state. This causes the linkage mechanism 5 to block the second back pressure chamber 25, thereby closing the flow path between the inlet channel 21 and the second outlet channel 23. After the second outlet channel 23 is closed, the flow path between the inlet channel 21 and the first outlet channel 22 is opened. This ensures that the second outlet channel 23 has sufficient water pressure, so that the water coming in from the inlet channel 21 is used to replenish the water tank 20.

[0067] It should be noted that the buoyancy component 4121 can be made by bonding together parts with high buoyancy, such as foam.

[0068] Please refer to Figure 6 and Figure 7In an optional embodiment, the inlet valve 10 further includes a delay mechanism 6, which is installed on the bottom wall of the first cavity 1a to slow down the water flow rate of the first cavity 1a, thereby slowing down the descent speed of the first float mechanism 3. When the drain valve flushes the toilet, the water entering through the inlet pipe 111 first passes through the second outlet channel 23 to assist in flushing the toilet, so as to improve the cleaning effect of the toilet.

[0069] In this embodiment, in order to improve the cleaning effect of the toilet, the inlet valve 10 also includes a delay mechanism 6. The delay mechanism 6 is installed on the bottom wall of the first cavity 1a. When the drain valve flushes the toilet, the water level in the water tank 20 drops, which causes the water in the second cavity 1b to be discharged into the water tank 20 through the water passage 115. At this time, the first float mechanism 3 drives the linkage mechanism 5 to open the pressure relief port, and the flow path between the second water outlet channel 23 and the water inlet channel 21 is connected. Then, the water coming in from the water inlet channel 21 is discharged out of the toilet through the second water outlet channel 23 to flush the toilet. Under the action of the delay mechanism 6, the water in the first cavity 1a flows out slowly. As a result, the descent speed of the first float 31 slows down in the early stage of drainage. Consequently, the flow path between the first water outlet channel 22 and the water inlet channel 21 is still cut off. As a result, the water entering from the water inlet channel 21 cannot be discharged into the water tank 20 through the first water outlet channel 22. Instead, the water entering from the water inlet channel 21 is discharged outside the toilet through the second water outlet channel 23. This enables the water inlet valve 10 to assist the drain valve in flushing the toilet and ensures sufficient water volume for auxiliary flushing.

[0070] Please refer to Figures 6 to 8 In an optional embodiment, a first water passage 113 is formed in the first cavity 1a, and a water outlet 114 is provided on the bottom wall of the first cavity 1a, with the first water passage 113 connected to the water outlet 114.

[0071] The delay mechanism 6 includes a delay valve 61 and a delay float 62. The delay valve 61 is rotatably installed in the first water passage 113. One end of the delay float 62 is movably inserted into the first water passage 113, and the other end of the delay float 62 extends out of the valve body 2. The delay float 62 is used to movably block the water outlet 114. Through the combined action of the delay float 62 and the delay valve 61, the outflow speed of water in the first cavity 1a is slowed down, thereby ensuring that the first water outlet 22 will not replenish water to the water tank 20 in the early stage of the drain valve operation, so that more water can be used to assist in flushing the toilet.

[0072] In this embodiment, in order to discharge the water in the first cavity 1a into the water tank 20, a first water passage 113 is formed on the bottom wall of the first cavity 1a, and a water outlet 114 is provided on the bottom wall of the first cavity 1a. Then, when the first cavity 1a needs to drain water, the water is discharged into the water tank 20 from the first water passage 113 and the water outlet 114 in sequence.

[0073] Specifically, in order to slow down the outflow of water from the first cavity 1a into the water tank 20, the delay mechanism 6 includes a delay valve 61 and a delay float 62. The delay valve 61 is rotatably installed in the first water passage 113, and one end of the delay float 62 is movably inserted into the first water passage 113, while the other end of the delay float 62 extends out of the valve body 2. That is, under the driving force of water, the extended float is movably inserted into the first water passage 113 through the outlet 114, thereby opening or closing the outlet 114. When the water tank 20 is at the normal water level, under the action of water, the time-delayed float 62 floats in the first water passage 113 and blocks the water in the first water passage 113 from flowing out of the outlet 114. Thus, water cannot flow out of the water tank 20 through the first water passage 113 and the outlet 114, thereby ensuring that the first float mechanism 3 will not sink, thus ensuring that the flow path between the water inlet channel 21 and the first water outlet channel 22 is cut off. When the drain valve is activated, the water level in the water tank 20 drops. The delayed float 62 sinks after the water force is removed, no longer blocking the flow path between the first water passage 113 and the outlet 114. This allows water to pass through the first water passage 113 and the outlet 114 sequentially and be discharged out of the water tank 20. At this time, the first float mechanism 3 sinks, which in turn drives the linkage mechanism 5 to open the pressure relief port. The flow path between the inlet channel 21 and the first outlet channel 22 is then connected, allowing water to enter the first outlet channel 22 from the inlet channel 21 and be discharged into the water tank 20, thereby replenishing the water tank 20.

[0074] It should be noted that the delay float 62 includes a connecting foot 621 and a float component 622. The connecting foot 621 is connected to one side of the float component 622 and extends into the first water passage 113, while the float component 622 extends to the outside of the valve body 2. A hook end 6211 is formed at the end of the connecting foot 621 away from the float component 622. When water enters the water tank 20, the float component 622, under the buoyancy of the water, covers the outlet 114 with its surface facing the connecting foot 621, thus preventing water in the first cavity 1a from draining out of the outlet 114. When the water level in the water tank 20 drops, the hook end 6211 hooks onto the bottom wall of the first cavity 1a, thereby opening the opening and allowing water in the first cavity 1a to flow out into the water tank 20. It should be noted that a sealing rib is formed on the outer periphery of the valve body 2 near the outlet 114. Therefore, when the surface of the float 622 abuts against the outlet 114, the connection sealing between the float 622 and the outlet 114 can be improved.

[0075] Please refer to Figures 6 to 8 In an optional embodiment, the first water passage 113 has a water passage hole 1131 on the surface opposite to the water outlet 114;

[0076] The delay valve 61 includes a water-blocking plate structure 611 and a rotary adjustment structure 612 connected to each other. The end of the rotary adjustment structure 612 away from the water-blocking plate structure 611 is exposed on the outer peripheral wall of the valve body 2. The water-blocking plate structure 611 passes through the first water passage 113. By rotating the rotary adjustment structure 612, the water-blocking plate structure 611 is driven to rotate within the first water passage 113, so that the water-blocking plate structure 611 at least partially covers the water passage hole 1131, thereby effectively controlling the amount of water flowing through the first water passage 113. This ensures that the first float mechanism 3 will not sink in the early stage of drainage, so that all the water entering from the inlet pipe 111 can be discharged into the toilet through the second outlet channel 23, thereby increasing the flushing effect on the toilet.

[0077] In this embodiment, to facilitate control of the water flow rate from the first water passage 113, a water passage hole 1131 is formed on the surface of the first water passage 113 facing away from the outlet 114, so that the water in the first cavity 1a can be discharged into the water tank 20 through the water passage hole 1131 and the outlet 114. It should be noted that, in order to increase the water flow rate of the first water passage 113, multiple water passage holes 1131 can be provided, and the multiple water passage holes 1131 are arranged at intervals on the outer wall of the first water passage 113. In this embodiment, two water passage holes 1131 are provided, and the two water passage holes 1131 are elliptical in shape. Of course, they can also be other shapes, such as rhombus, elongated or square, which are not limited here.

[0078] Specifically, in order to further control the water flow rate from the first cavity 1a to the first water passage 113, the delay valve 61 includes a baffle structure 611 and a rotary adjustment structure 612. The rotary adjustment structure 612 is located at one end of the baffle structure 611. When the delay valve 61 is installed in the first water passage 113, the baffle structure 611 passes through the first water passage 113, and the rotary adjustment structure 612 protrudes from the outer peripheral wall of the first cavity 1a. This facilitates the operation of the rotary adjustment structure 612 to drive the baffle structure 611 to rotate in the first water passage 113, so that the baffle structure 611 can at least partially cover the water passage hole 1131. This effectively controls the water flow rate through the first water passage 113, allowing the first float mechanism 3 to slowly sink to ensure sufficient water flow for flushing the toilet.

[0079] Furthermore, the rotary adjustment structure 612 includes a body 6121, a rotary lever 6123, and a limiting rib 6124. One end of the body 6121 is connected to the water baffle structure 611, and a rotary groove 6122 is formed at the end of the body 6121 away from the water baffle structure 611. The rotary lever 6123 is formed in the rotary groove 6122, and the limiting rib 6124 is provided on the outer peripheral wall of the rotary groove 6122. By rotating the rotary lever 6123, the partial coverage of the water baffle structure 611 on the water passage hole 1131 can be adjusted, thereby controlling the amount of water flowing through the water passage hole 1131. Meanwhile, limiting grooves 27 are provided on both sides of the outer peripheral wall of the valve body 2. When the rotating block 6123 is rotated, the limiting rib 6124 rotates as well. During the rotation, the limiting rib 6124 will abut against one side wall of the limiting groove, resulting in the water baffle structure 611 completely covering the water passage hole 1131, partially covering the water passage hole 1131, and then completely not covering the water passage hole 1131. It should be noted that the included angle formed by the two sides of the limiting groove 27 is 0° to 120°. Within this range, the water baffle structure 611 can completely not cover the water passage hole 1131, partially cover it, and then completely cover it.

[0080] Furthermore, the delay valve 61 is a one-piece molded structure, ensuring structural strength and stability.

[0081] Please refer to Figure 8 In an optional embodiment, the cross-section of the water baffle structure 611 is semi-circular, so that while rotating the water baffle structure 611, the water baffle structure 611 can stably cover the water passage hole 1131, thereby effectively controlling the water output of the water passage hole 1131.

[0082] This invention also proposes a flushing system, which includes a water tank 20, a drain valve, and an inlet valve 10 as described in any of the preceding embodiments. The drain valve and the inlet valve 10 are spaced apart within the water tank 20. The drain valve is used to flush the toilet, and the inlet valve 10 is used to replenish water to the water tank 20 and assist the drain valve in flushing the toilet. Since the specific structure of the inlet valve 10 in this flushing system refers to the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0083] The present invention also proposes a smart toilet, which includes a toilet seat and a flushing system as described above. Therefore, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0084] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A water inlet valve, said water inlet valve being installed in a water tank (20), characterized in that, The inlet valve (10) includes: A fixed bucket base (1) is provided, the fixed bucket base (1) having an installation cavity (11), the fixed bucket base being provided with an inlet pipe (111) and an outlet pipe (112) communicating with the installation cavity (11), the inlet pipe (111) being used to communicate with a water supply source; The valve body (2) is installed in the mounting cavity (11). The valve body (2) has a water inlet channel (21), a first water outlet channel (22), and a second water outlet channel (23). One end of the water inlet channel (21) is connected to the first water outlet channel (22) and the second water outlet channel (23) respectively. The other end of the water inlet channel (21) is connected to the water inlet pipe (111). The second water outlet channel (23) is connected to the water outlet pipe (112) for assisting in flushing the toilet. The first water outlet channel (22) is connected to the mounting cavity (11) for replenishing water to the water tank (20). The valve body (2) has a first back pressure chamber (24) and a second back pressure chamber (25). The first back pressure chamber (24) is connected to the first water outlet channel (22), and the second back pressure chamber (25) is connected to the second water outlet channel (23). The mounting cavity (11) has a first cavity (1a) and a second cavity (1b) spaced apart. The water outlet pipe (112) and the water inlet pipe (111) are spaced apart in the second cavity (1b), and the first water outlet channel (22) is connected to the first cavity (1a). The inlet valve (10) also includes a first float mechanism (3) and a second float mechanism (4). One end of the first float mechanism (3) is located in the first cavity (1a), and the other end has a pressure relief port that can block or open the first back pressure cavity (24). One end of the second float mechanism (4) is located in the second cavity (1b), and the other end has a pressure relief port to block or open the second back pressure cavity (25).

2. The inlet valve as described in claim 1, characterized in that, The first float mechanism (3) includes a first float (31) and a first pull rod (32). The first pull rod (32) is located on one side of the first float (31), and the first float (31) is movably located in the first cavity (1a). The second float mechanism (4) includes a second float (41) and a second tie rod (42). The second tie rod (42) is located on one side of the second float (41), and the second float (41) is movably located in the second cavity (1b). The inlet valve (10) also includes two linkage mechanisms (5), and the first pull rod (32) is connected to one of the linkage mechanisms (5) at the end away from the first float (31) so as to block the pressure relief port of the first back pressure chamber (24) through the linkage mechanism (5); The second tie rod (42) is connected at one end away from the second float (41) to another linkage mechanism (5) so as to movably block the pressure relief port of the second back pressure chamber (25) through the linkage mechanism (5).

3. The inlet valve as described in claim 2, characterized in that, The second float (41) includes a water storage chamber (411) and a buoyancy chamber (412) arranged at intervals. The second pull rod (42) is connected to the bottom wall of the water storage chamber (411). The bottom wall of the water storage chamber (411) is provided with a drain hole. The water in the water storage chamber (411) is discharged from the drain hole as the water level in the second cavity (1b) falls, so that the second float (41) falls or floats in the second cavity (1b), thereby driving the linkage mechanism (5) to move and block the pressure relief port of the second back pressure chamber (25).

4. The inlet valve as described in claim 3, characterized in that, The inlet valve (10) also includes a delay mechanism (6), which is installed on the bottom wall of the first cavity (1a) to slow down the outflow speed of the water in the first cavity (1a) so as to slow down the descent speed of the first float mechanism (3).

5. The inlet valve as described in claim 4, characterized in that, A first water passage (113) is formed in the first cavity (1a), and a water outlet (114) is provided on the bottom wall of the first cavity (1a). The first water passage (113) is connected to the water outlet (114). The delay mechanism (6) includes a delay valve (61) and a delay float (62). The delay valve (61) is rotatably installed in the first water passage (113). One end of the delay float (62) is movably inserted into the first water passage (113), and the other end of the delay float (62) extends out of the valve body (2). The delay float (62) is used to movably block the outlet (114).

6. The inlet valve as described in claim 5, characterized in that, The first water passage (113) has a water passage hole (1131) on its surface opposite to the water outlet (114); The delay valve (61) includes a water-blocking plate structure (611) and a rotary adjustment structure (612) connected to each other. The rotary adjustment structure (612) is exposed on the outer peripheral wall of the valve body (2) at the end away from the water-blocking plate structure (611). The water-blocking plate structure (611) passes through the first water passage (113). By rotating the rotary adjustment structure (612), the water-blocking plate structure (611) is driven to rotate within the first water passage (113) so that the water-blocking plate structure (611) at least partially covers the water passage hole (1131).

7. The inlet valve as described in claim 6, characterized in that, The cross-section of the water-blocking plate structure (611) is semi-circular.

8. A flushing system, characterized in that, The flushing system includes a water tank (20), a drain valve, and an inlet valve (10) as described in any one of claims 1 to 7. The drain valve and the inlet valve (10) are spaced apart in the water tank (20). The drain valve is used to flush the toilet, and the inlet valve (10) is used to replenish the water tank (20) with water and assist the drain valve in flushing the toilet.

9. A smart toilet, comprising a toilet seat, characterized in that, The toilet seat is equipped with the flushing system as described in claim 8.

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