Flow limiting device, water valve and intelligent closestool

Abstract

The invention provides a flow limiting device, a water valve and an intelligent closestool, the flow limiting device comprises a valve body, a water inlet structure and a water outlet structure, the valve body is internally provided with an accommodating space, and the valve body is provided with a water inlet structure and a water outlet structure which are communicated with the accommodating space; the flow limiting assembly is arranged in the water outlet structure, and the flow limiting assembly comprises a base, a first flow limiting part and a second flow limiting part; the flow limiting assembly sequentially comprises a second flow limiting part, a first flow limiting part and a base in the water flow direction, and the outer diameter of the first flow limiting part and the outer diameter of the second flow limiting part are both smaller than the inner diameter of the water outlet structure. A through hole is formed in the base, and the second flow limiting part is partially communicated with the through hole; the first flow limiting part is slidably connected with the base, and the second flow limiting part is slidably connected with the first flow limiting part; the flow limiting assembly adjusts the conduction state among the first flow limiting part, the second flow limiting part and the base based on the water pressure so as to adjust noise generated by water flow of the flow limiting device. In this way, noise generated when water flows out is effectively reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of smart home, and particularly relates to a flow limiting device, a water valve and a smart toilet. BACKGROUND

[0002] With the improvement of living standards, the smart toilet has been widely applied. At present, the smart toilet on the market is mostly directly communicated with a tap water pipe to supply water for the smart toilet. However, when the tap water is used for flushing, the water pressure of the tap water is unstable, so that a large noise is generated when the tap water is used for high-pressure flushing, which affects the user experience. Although part of the smart toilet is provided with a flow limiting sheet, so as to solve the problem of eliminating the noise in the form of increasing the flow resistance at high pressure, the water flow cannot meet the flushing demand of the smart toilet at low pressure due to the setting of the flow limiting sheet. SUMMARY

[0003] The application provides a flow limiting device to solve the problem of large noise of the water valve when flushing.

[0004] To solve the above technical problem, the application provides a flow limiting device, which comprises a valve body, a water inlet structure and a water outlet structure formed in the valve body, a flow limiting assembly arranged in the water outlet structure, and a first flow limiting part and a second flow limiting part of the flow limiting assembly. The flow limiting assembly comprises a base, a first flow limiting part and a second flow limiting part. The flow limiting assembly is sequentially arranged in the water flow direction as the second flow limiting part, the first flow limiting part and the base. The outer diameter of the first flow limiting part and the second flow limiting part is smaller than the inner diameter of the water outlet structure. A through hole is arranged on the base, and the second flow limiting part is partially communicated with the through hole. The first flow limiting part is slidably connected with the base, and the second flow limiting part is slidably connected with the first flow limiting part. The flow limiting assembly adjusts the conduction state among the first flow limiting part, the second flow limiting part and the base based on the water pressure, so as to adjust the noise generated by the water flow of the flow limiting device.

[0005] The water outlet structure comprises at least a first water outlet pipe and a second water outlet pipe. The first flow limiting assembly is arranged in the first water outlet pipe, and the second flow limiting assembly is arranged in the second water outlet pipe. The flow area of the first flow limiting assembly is different from that of the second flow limiting assembly.

[0006] The first flow limiting part comprises a first elastic member and a first flow limiting member. A convex platform is formed on one side of the first flow limiting member. A plurality of first throttling holes are arranged on the first flow limiting member. A first recess is formed on the base. The first elastic member is sleeved on the outer side wall of the convex platform, and the two ends of the first elastic member are respectively abutted with the first flow limiting member and the base. The inner diameter of the first recess is smaller than the diameter of the first flow limiting member.

[0007] The second flow limiting part comprises a second elastic member and a second flow limiting member, the second flow limiting member is provided with a slide rod at one end close to the base, the slide rod penetrates the through hole of the first flow limiting member and the through hole of the base in sequence, and a plurality of second throttling holes are arranged through the second flow limiting member; the second elastic member is sleeved on the outer side wall of the slide rod, and the two ends are respectively abutted with the first flow limiting member and the second flow limiting member.

[0008] The base is provided with a limiting member, the limiting member is connected with the inner side wall of the through hole, a notch is formed in the limiting member, and the slide rod is movably connected in the notch.

[0009] The second elastic member is at least partially located in the second groove, and the inner diameter of the second groove is smaller than the diameter of the second flow limiting member.

[0010] The flow limiting assembly comprises a throttling sheet, the throttling sheet is provided with a plurality of third throttling holes, the second flow limiting member is formed with a third groove at one side away from the slide rod, and the throttling sheet is arranged in the third groove.

[0011] The flow area of the first throttling hole, the second throttling hole and the third throttling hole decreases in sequence; when the water pressure is in a low pressure range, the first flow limiting part is separated from the base to be in communication, and the second flow limiting part is separated from the first flow limiting part to be in communication; when the water pressure rises to a medium pressure range, the first flow limiting part is closed to close the flow channel, and the second flow limiting part is separated from the first flow limiting part to be in communication; when the water pressure rises to a high pressure range, the first flow limiting part is closed to close the flow channel, and the second flow limiting part is closed to close the flow channel.

[0012] To solve the above problems, the second aspect of the present application provides a water valve, comprising: a flow limiting device, the flow limiting device is any one of the flow limiting devices.

[0013] To solve the above problems, the second aspect of the present application provides a water valve, comprising: a flow limiting device, the flow limiting device is any one of the flow limiting devices.

[0014] To solve the above problems, the third aspect of the present application provides an intelligent toilet, comprising: a flow limiting device, the flow limiting device is any one of the flow limiting devices.

[0015] The beneficial effects of the present application are: different from the prior art, the present application sets a flow limiting assembly in the water outlet structure, when the water flow is low pressure, the water flow can flow out through the first flow limiting part, the second flow limiting part and the base, when the water flow is medium pressure, the first flow limiting part and the base are closed, so that the water flow passes through the gap between the second flow limiting part and the first flow limiting part and flows out through the base, and when the water flow is high pressure, the first flow limiting part, the second flow limiting part and the base are all closed, the water flow can flow out through the part of the second flow limiting part and the through hole of the base, that is, the flow limiting assembly can automatically adjust the flow of the water flow for different water pressures, thereby effectively reducing the noise generated when the water flow flows out. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of an embodiment of the valve body of the present application;

[0017] Figure 2 is a structural schematic view of a sectional view of the valve body of the present application;

[0018] Figure 3 is a structural schematic view of a sectional view of the flow limiting assembly of the present application;

[0019] Figure 4 is a structural schematic view of an exploded view of the flow limiting assembly of the present application;

[0020] Figure 5 is a structural schematic view of an embodiment of the base of the present application;

[0021] Figure 6 is a structural schematic view of another embodiment of the base of the present application;

[0022] Figure 7 is a structural schematic view of an embodiment of the first flow limiting part of the present application;

[0023] Figure 8 is a structural schematic view of another embodiment of the first flow limiting part of the present application;

[0024] Figure 9 is a structural schematic view of an embodiment of the second flow limiting part of the present application;

[0025] Figure 10 is a structural schematic view of a top view of the second flow limiting part of the present application;

[0026] Figure 11 is a structural schematic view of an embodiment of the throttle plate of the present application. DETAILED DESCRIPTION

[0027] With reference to the drawings and embodiments disclosed herein, it should be understood that these embodiments are presented by way of example only, and are not intended to limit the scope of the application. Numerous other embodiments can be derived from the embodiments disclosed herein without departing from the scope of the application.

[0028] It should be noted that if the application embodiments have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, motion condition, etc. between components in a certain posture (as shown in the drawings), if the certain posture changes, the directionality indication also changes accordingly.

[0029] In addition, if the application embodiments have descriptions of "first", "second", etc., the "first", "second", etc. descriptions are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the application.

[0030] Please refer to Figure 1 , Figure 1 is a structure schematic diagram of the cross-sectional view of the flow limiting device provided by the application.

[0031] The application provides a flow limiting device. As shown in Figure 1 and Figure 3 , the flow limiting device of the embodiment comprises a valve body 10 and a flow limiting assembly 20. As shown in Figure 2 , the valve body 10 is formed with a containing space 11, and the valve body 10 is formed with a water inlet structure 12 and a water outlet structure 13 which communicate with the containing space 11. The flow limiting assembly 20 is arranged in the water outlet structure 13, and the flow limiting assembly 20 comprises a base 21, a first flow limiting part 22 and a second flow limiting part 23, wherein the flow limiting assembly 20 is sequentially the second flow limiting part 23, the first flow limiting part 22 and the base 21 along the water flow direction, and the outer diameters of the first flow limiting part 22 and the second flow limiting part 23 are smaller than the inner diameter of the water outlet structure 13. As shown in Figure 5As shown, the base 21 is provided with a through hole 211 for water to flow through. The second flow limiting part 23 is partially connected to the through hole 211. The first flow limiting part 22 is slidably connected to the base 21. The second flow limiting part 23 is slidably connected to the first flow limiting part 22. The flow limiting component 20 adjusts the conduction state between the first flow limiting part 22, the second flow limiting part 23 and the base 21 based on water pressure to regulate the noise generated by the water flow of the flow limiting device.

[0032] In an optional embodiment, a receiving space 11 is formed on the valve body 10, and an inlet structure 12 and an outlet structure 13 communicating with the receiving space 11 are formed. That is, the valve body 10 is connected to external water flow, that is, the inlet structure 12 of the valve body 10 is connected to external water flow. Specifically, the inlet structure 12 of the water valve can be connected to a tap water pipe, so that tap water enters the valve body 10. After the water flows into the valve body 10, it can enter the outlet structure 13 through the receiving space 11.

[0033] In this embodiment, a flow-limiting component 20 is provided inside the water outlet structure 13. After water flows through the water inlet structure 12 and enters the water outlet structure 13, it can be discharged through the flow-limiting structure. The flow-limiting structure includes a base 21, a first flow-limiting part 22, and a second flow-limiting part 23, arranged sequentially along the water flow direction as the second flow-limiting part 23, the first flow-limiting part 22, and the base 21. The base 21 is disposed inside the water outlet structure 13. Specifically, the outer wall of the base 21 abuts against the inner wall of the water outlet structure 13, and a through hole 211 is formed on the base 21 for water to flow through. That is, when water flows through the water outlet structure 13, it can flow out through the through hole 211 on the base 21.

[0034] Furthermore, the first flow-limiting part 22 is slidably connected to the base 21, and the second flow-limiting part 23 is slidably connected to the first flow-limiting part 22. The outer diameters of both the first flow-limiting part 22 and the second flow-limiting part 23 are smaller than the inner diameter of the water outlet structure 13. The first flow-limiting part 22 and the second flow-limiting part 23 are movably connected to the base 21, and the flow-limiting assembly 20 can adjust the conductivity between the first flow-limiting part 22, the second flow-limiting part 23, and the base 21 based on water pressure. Specifically, when the water pressure is low, the first flow-limiting part 22, the second flow-limiting part 23, and the base 21 are in a conductive state, meaning that water can flow through the first flow-limiting part 22 and the second flow-limiting part 23 and then out through the through-hole 211 of the base 21. At this time, due to the lower water pressure, the noise generated is relatively small. When the water pressure is low, there is a gap between the first flow-limiting part 22 and the base 21, and a gap between the second flow-limiting part 23 and the first flow-limiting part 22. Specifically, the gaps between the first flow-limiting part 22 and the base 21, and between the second flow-limiting part 23 and the first flow-limiting part 22, are all connected to the through hole 211 of the base 21, and part of the second flow-limiting part 23 is connected to the through hole 211. In other words, when the water pressure is low, the water flow can be transmitted to the through hole 211 of the base 21 through the gaps between the first flow-limiting part 22 and the base 21, the gaps between the second flow-limiting part 23 and the first flow-limiting part 22, and part of the second flow-limiting part 23, and then flow out through the through hole 211.

[0035] Furthermore, when the water pressure is medium, the water pressure is relatively high compared to low pressure, and the water pressure on the first flow-limiting part 22 is relatively high compared to the water pressure on the second flow-limiting part 23. Specifically, the water pressure on the first flow-limiting part 22 includes the water pressure on the second flow-limiting part 22, as well as the water pressure on itself. That is, when the water pressure is medium, because the water pressure on the first flow-limiting part 22 is relatively high, the first flow-limiting part 22 is pressed against the base 21 under the action of water pressure, that is, one end face of the first flow-limiting part 22 abuts against one end face of the base 21. Therefore, the base 21 and the first flow-limiting part 22 are sealed, that is, the first flow-limiting part 22 and the base 21 are in a closed state. At this time, because the water pressure on the second flow-limiting part 23 is relatively lower than that on the first flow-limiting part 22, there is a gap between the second flow-limiting part 23 and the first flow-limiting part 22. That is, the second flow-limiting part 23 and the first flow-limiting part 22 are in a conductive state, and the second flow-limiting part 23 is in a conductive state with the base 21. This allows water to flow through the gap between the second flow-limiting part 23 and the first flow-limiting part 22, as well as through a portion of the second flow-limiting part 23, to the through hole 211 of the base 21, and then out through the through hole 211. At this time, because the water pressure is medium pressure, the water flows out only through the second flow-limiting part 23 and the through hole 211 on the base 21. That is, the water flow rate is controlled at medium pressure, thereby effectively reducing the noise generated by the water flow.

[0036] Furthermore, when the water pressure is high (relatively higher than medium pressure), the first flow-limiting part 22 is pressed against the base 21, meaning one end face of the first flow-limiting part 22 abuts against one end face of the base 21, and the second flow-limiting part 23 is pressed against the first flow-limiting part 22, meaning one end face of the second flow-limiting part 23 abuts against the other end face of the first flow-limiting part 22. At this time, the flow-limiting assembly 20 has the second flow-limiting part 23 abutting against the first flow-limiting part 22, and the first flow-limiting part 22 abutting against the base 21. There are no gaps between the first flow-limiting part 22 and the base 21, or between the second flow-limiting part 23 and the first flow-limiting part 22. The water flow communicates with the through hole 211 through a portion of the second flow-limiting part 23.

[0037] It should be noted that, since the flow-limiting component 20 is disposed within the water outlet structure 13, the side wall of the base 21 abuts against the inner side wall of the water outlet structure 13, meaning that water can only flow out through the through hole 211 of the base 21. Because the first flow-limiting part 22 and the second flow-limiting part 23 are smaller than the diameter of the water outlet structure 13, there is a gap between the first flow-limiting part 22 and the second flow-limiting part 23, and also a gap between the outer side wall of the first flow-limiting part 22 and the inner side wall of the water outlet structure 13. Specifically, taking a low water pressure as an example, there is a gap between the first flow-limiting part 22 and the base 21. That is, the flow path of the water through the first flow-limiting part 22 is as follows: the water flows through the gap between the inner side wall of the water outlet structure 13 and the outer side wall of the first flow-limiting part 22, flows into the gap formed between the end face of the first flow-limiting part 22 and the end face of the base 21, and then flows out through the through hole 211 on the base 21. Furthermore, there is a gap between the second flow limiting part 23 and the first flow limiting part 22. The water flow path through the second flow limiting part 23 is as follows: the water flows through the gap between the inner side wall of the water outlet structure 13 and the outer side wall of the second flow limiting part 23, flows into the gap between the first flow limiting part 22 and the second flow limiting part 23, and then flows out through the through hole 211 on the base 21.

[0038] The second flow-limiting part 23 being partially connected to the through hole 211 on the base 21 can be represented by having multiple holes at one end of the second flow-limiting part 23, allowing water to flow through these holes and connect with the through hole 211 of the base 21. In other embodiments, a hollow structure can be formed on the end face of the second flow-limiting part 23 away from the first flow-limiting part 22, and this hollow structure can be located at the center of the second flow-limiting part 23 and connected to the through hole 211 of the base 21. That is, under any water pressure, water can flow through a portion of the second flow-limiting part 23 and out through the through hole 211 of the base 21. This ensures that even under high pressure, water can still be discharged through the flow-limiting component 20.

[0039] In the above embodiment, by providing a flow-limiting component 20 in the water outlet structure 13, when the water flow is at low pressure, the water flow can flow out through the first flow-limiting part 22, the second flow-limiting part 23 and the base 21. When the water flow is at medium pressure, the first flow-limiting part 22 and the base 21 are closed, so that the water flow can flow out through the gap between the second flow-limiting part 23 and the first flow-limiting part 22 and the base 21. When the water flow is at high pressure, the first flow-limiting part 22, the second flow-limiting part 23 and the base 21 are all closed, and the water flow can flow out through a part of the second flow-limiting part 23 and the through hole 211 of the base 21. That is, for different water pressures, the flow-limiting component 20 can automatically adjust the flow rate of the water flow, thereby effectively reducing the noise generated when the water flows out.

[0040] In an optional embodiment, such as Figure 2 As shown, the water outlet structure 13 includes at least a first water outlet pipe 131 and a second water outlet pipe 132, and both the first water outlet pipe 131 and the second water outlet pipe 132 are provided with flow limiting components 20. Specifically, the first water outlet pipe 131 is provided with a first flow limiting component 201, and the second water outlet pipe 132 is provided with a second flow limiting component 202. The flow areas of the first flow limiting component 201 and the second flow limiting component 202 are different. For example, the gap between the first flow limiting part 22 of the first flow limiting component 201 and the base 21, that is, the flow area, is different from the gap between the first flow limiting part 22 of the second flow limiting component 202 and the base 21. The water outlet structure 13 includes a first water outlet pipe 131 and a second water outlet pipe 132. That is, the valve body 10 is provided with at least one water outlet. After water enters the valve body 10 through the inlet pipe, it can be discharged through at least one water outlet. A flow-limiting component 20 is provided in each outlet pipe to control the water flow rate in each outlet pipe, thereby controlling the noise generated when water flows through each outlet pipe. The water outlet structure 13 includes the first water outlet pipe 131 and the second water outlet pipe 132. In other embodiments, the water outlet structure 13 may also include multiple water outlet pipes, such as three or four, which can be set according to requirements. This application does not specifically limit this.

[0041] In other embodiments, the diameters of the first water outlet pipe 131 and the second water outlet pipe 132 may be different. It is understood that the flow limiting components 20 installed in the first water outlet pipe 131 and the second water outlet pipe 132 are also different in size. That is, water outlet pipes with different diameters are connected to the same water inlet pipe, and the water pressure generated by the water flow is also different. Their low pressure, medium pressure and high pressure water flows are also different.

[0042] In a specific application scenario, the flow-limiting device is installed inside a smart toilet, with the water inlet structure 12 of the valve body 10 connected to a tap water pipe. The tap water inlet pressure is between 0.1 MPa and 1 MPa, specifically, a common tap water pressure is between 0.1 MPa and 0.7 MPa. The flow-limiting device is installed inside the smart toilet, and the water outlet structure 13 can be connected to the smart toilet's flushing mechanism. Specifically, the first water outlet pipe 131 can be connected to the side-flush nozzle of the smart toilet, and the second water outlet pipe 132 can be connected to the low-flush nozzle of the smart toilet. When the smart toilet flushes, the flow rate is maintained at approximately 20 L / min during low-pressure low-flush and approximately 25 L / min during high-pressure low-flush. The low-flush flow rate is generally maintained between 12 L / min and 16 L / min. When the smart toilet is in a side-flush state, the water pressure is low, ranging from 0.05 to 0.15 MPa. At this time, the first flow-limiting part 22, the second flow-limiting part 23, and the base 21 are all in a conductive state. Water can flow through the gap between the first flow-limiting part 22 and the base 21, the gap between the second flow-limiting part 23 and the first flow-limiting part 22, and a portion of the second flow-limiting part 23, and is discharged through the through-hole 211 of the base 21. When the water pressure is medium, ranging from 0.2 to 0.4 MPa, the second flow-limiting part 23 and the base 21 are also in a conductive state. Water can flow through the gap between the second flow-limiting part 23 and the first flow-limiting part 22, and a portion of the second flow-limiting part 23, and is discharged through the through-hole 211 of the base 21. When the water pressure is high, the pressure range is 0.45 to 0.1 MPa. At this time, the first flow limiting part 22, the second flow limiting part 23 and the base 21 are all closed. The water flow only passes through part of the second flow limiting part 23 and is discharged through the through hole 211 of the base 21.

[0043] In this embodiment, during a low-pressure flush of the smart toilet, the water pressure ranges from 0.05 to 0.2 MPa. During a medium-pressure flush, the water pressure ranges from 0.25 to 0.5 MPa. During a high-pressure flush, the water pressure ranges from 0.5 to 0.1 MPa. The conductivity between the first flow-limiting part 22, the second flow-limiting part 23, and the base 21 during low, medium, and high pressure flushes is the same as that during a side flush, and will not be elaborated further here.

[0044] In an optional embodiment, such as Figure 3 and Figure 7 As shown, the first flow-limiting part 22 includes: a first elastic member 221 and a first flow-limiting member 222. A boss 223 is formed on one end face of the first flow-limiting member 222, and a plurality of through first throttling holes 224 are provided on the first flow-limiting member 222. Figure 6As shown, a first groove 212 is formed on the base 21. A first elastic member 221 is sleeved on the outer wall of the boss 223, and both ends abut against the first flow limiting member 222 and the base 21, respectively. The inner diameter of the first groove 212 is smaller than the diameter of the first flow limiting member 222. The first flow limiting part 22 includes the first elastic member 221 and the first flow limiting member 222. A boss 223 is formed on the side of the first flow limiting member 222 facing the base 21, so that the first elastic member is sleeved on the outer wall of the boss 223, thereby limiting the first limiting member 213. One end of the first elastic member 221 abuts against the first flow limiting member 222, and the other end abuts against the first groove 212 of the base 21, thereby further limiting the first elastic member 221 through the first groove 212.

[0045] In this embodiment, under low pressure, since the water pressure is less than the elastic force of the first elastic member 221, a gap exists between the first flow restrictor 222 and the base 21 under the action of the elastic member. This allows the water to pass through the gap between the first flow restrictor 222 and the base 21 and be transmitted to the through hole 211 of the base 21. Under medium pressure, since the water pressure acts on the first flow restrictor 222 and the second flow restrictor 23, the pressure generated by the water is greater than the elastic force of the first elastic member 221. At this time, the first flow restrictor 222 abuts against the base 21, thereby closing the gap between the first flow restrictor 222 and the base 21. The water can then be transmitted through the gap between the second flow restrictor 23 and the first flow restrictor 222 to the through hole 211 of the base 21. Furthermore, after the first elastic member 221 is compressed by water pressure, that is, when one side of the first flow limiting member 222 abuts against the end face of the base 21, in order to prevent water flow from passing through the abutting position between the first flow limiting member 222 and the base 21, it is necessary to ensure that the inner diameter of the first groove 212 is smaller than the diameter of the first flow limiting member 222.

[0046] In an optional embodiment, the first flow restrictor 222 is provided with a plurality of through first throttling holes 224, that is, when the water flows through the second flow restrictor 23, it can flow out through the plurality of first throttling holes 224 on the first flow restrictor 222. In other words, the plurality of first throttling holes 224 on the first flow restrictor 222 can be used to connect the second flow restrictor 23 and the through hole 211 of the base 21. When the second flow restrictor 23 and the base 21 are connected, the water flows through the gap between the first flow restrictor 22 and the second flow restrictor 23, and then through the plurality of first throttling holes 224 on the first flow restrictor 222 to the through hole 211 of the base 21.

[0047] In an optional embodiment, such as Figure 3 and Figure 9As shown, the second flow-limiting part 23 includes a second elastic member 231 and a second flow-limiting member 232. The second flow-limiting member 232 has a sliding rod 233 at one end near the base 21. The sliding rod 233 passes through the through hole of the first flow-limiting part 22 and the through hole 211 of the base 21, and is exposed outside the base 21. Figure 10 As shown, a plurality of second throttling holes 234 are provided through the second flow restrictor 232. A second elastic member 231 is sleeved on the outer wall of the slide rod 233, and its two ends abut against the first flow restrictor 222 and the second flow restrictor 232, respectively. A slide rod 233 is formed at the end of the second flow restrictor 232 near the base 21. The second elastic member 231 can be sleeved on the outer wall of the slide rod 233. One end of the second elastic member 231 abuts against the end face of the second flow restrictor 232, and the other end abuts against the end face of the first flow restrictor 222. (Combined...) Figure 8 As shown, the first flow restrictor 222 has a second groove 225 formed on the end face away from the boss 223. The second elastic member 231 is at least partially located within the second groove 225, and the inner diameter of the second groove 225 is smaller than the diameter of the second flow restrictor 232. That is, the first elastic member 221 is limited by the slide bar 233 and the second groove 225.

[0048] In this embodiment, under low pressure, the water pressure is less than the elastic force of the first elastic member 221 and the second elastic member 231. Under the action of the first elastic member 221, there is a gap between the first flow limiting member 222 and the base 21, and there is a gap between the second flow limiting member 232 and the first flow limiting member 222, so that the water flow can be transmitted to the through hole 211 of the base 21 through the gap.

[0049] Under medium pressure, the water pressure acts on the first flow restrictor 222 and the second flow restrictor 232. Specifically, the pressure on the first flow restrictor 222 comes from its own water pressure and the water pressure generated by the second flow restrictor 232. The water pressure acting on both the first and second flow restrictors 222 is greater than the elastic force of the first elastic member 221, causing the first flow restrictor 222 to abut against the base 21, and the connection between the first flow restrictor 222 and the base 21 is closed. Furthermore, the water pressure on the second flow restrictor 232 is less than the elastic force of the second elastic member 231. At this time, a gap exists between the second flow restrictor 232 and the first flow restrictor 222. Water can pass through this gap and the first throttling orifice on the first flow restrictor 222 to the through hole 211 of the base 21, and then be discharged through the through hole 211 of the base 21.

[0050] Under high pressure, the water pressure on the first flow restrictor 222 is greater than the elastic force of the first elastic member 221, and the water pressure on the second flow restrictor 232 is greater than the elastic force of the second elastic member 231. At this time, the first flow restrictor 222 abuts against the base 21, and the second flow restrictor 232 abuts against the first flow restrictor 222. The water flow is transmitted to the through hole 211 of the base 21 through the second throttling hole 234 on the second flow restrictor 232 and the first throttling hole 224 on the first flow restrictor 222, and is discharged through the through hole 211 of the base 21.

[0051] In an optional embodiment, the inner diameter of the second groove 225 is smaller than the diameter of the second flow restrictor 232, that is, the flow-through inner diameter of the second groove 225 on the first flow restrictor 222 needs to be smaller than the diameter of the second flow restrictor 232. Under high pressure, that is, after the water pressure compresses the second elastic member 231, that is, the second flow restrictor 232 abuts against the first flow restrictor 222, in order to prevent water from flowing out through the gap between the first flow restrictor 222 and the second flow restrictor 232, the diameter of the second flow restrictor 232 needs to be larger than the diameter of the second groove 225 on the first flow restrictor 222.

[0052] In an optional embodiment, when assembling the current limiting component 20, the first elastic member 221 can be inserted into the first groove 212 of the base 21, and the boss 223 of the first current limiting member 222 can be inserted into the first elastic member 221. That is, the first elastic member 221 is clamped and fixed by the base 21 and the first current limiting member 222, and is limited by the first groove 212 and the boss 223. Then, the second elastic member 231 is inserted into the second groove 225 of the first current limiting member 222, and then the slide rod 233 of the second current limiting member 232 is inserted into the second elastic member 231. That is, the second elastic member 231 is clamped and fixed by the first current limiting member 222 and the second current limiting member 232, and is limited by the second groove 225 and the slide rod 233. When inserting the slide rod 233, the slide rod 233 passes through the first current limiting member 222 and the base 21 in sequence.

[0053] In an optional embodiment, such as Figure 6As shown, a limiting member 213 is provided on the base 21. The limiting member 213 is connected to the inner sidewall of the through hole 211. A slot 214 is provided on the limiting member 213, and a sliding rod 233 is movably connected to the slot 214. Specifically, a through hole 211 is provided on the base 21, and a limiting member 213 is provided on the base 21, which is connected to the inner sidewall of the through hole 211. Specifically, multiple connecting parts can be evenly arranged around the periphery of the limiting member 213, and the multiple connecting parts can extend beyond the sidewall of the limiting member 213. After the multiple connecting parts are connected to the inner sidewall of the through hole 211, a gap can be created between the limiting member 213 and the limiting member 213 to allow water to flow through. The slot 214 is provided on the limiting member 213, so that the sliding rod 233 is movably connected to the slot 214, and the rotation angle of the sliding rod 233 can be limited by the slot 214.

[0054] In an optional embodiment, such as Figure 4 and Figure 11 As shown, the flow limiting assembly 20 includes a throttling plate 24, which has a plurality of third throttling holes 241. A third groove 235 is formed on the side of the second flow limiting member 232 away from the slide rod 233, and the throttling plate 24 is disposed within the third groove 235. A flow channel communicating with the third groove 235 is formed inside the slide rod 233, and a plurality of openings communicating with the flow channel are provided on the outer wall of the slide rod 233. The third groove 235 is formed on the side of the second flow limiting member 232 away from the slide rod 233, thereby allowing the throttling plate 24 to be engaged within the third groove 235. One end face of the throttling plate 24 can be flush with one end face of the second flow limiting member 232. When the water pressure is low, medium, or high, the water flow can pass through the third throttling hole 241 on the throttling plate 24, then through the second throttling hole 234 on the second flow limiting member 232 and the first throttling hole 224 on the first flow limiting member 222, and finally be discharged through the through hole 211 on the base 21. Specifically, when the throttling plate 24 is placed in the third groove 235 of the second flow limiting member 232, a cavity can be formed between the throttling plate 24 and the second flow limiting member 232 to allow water to flow through.

[0055] In one optional embodiment, the flow areas of the first throttling orifice 224, the second throttling orifice 234, and the third throttling orifice 241 decrease sequentially, thus controlling the flow rate of the water by setting the flow area. In other embodiments, the flow areas of the first throttling orifice 224, the second throttling orifice 234, and the third throttling orifice 241 can also be set in the same way, depending on the specific requirements, and this application does not impose any specific limitations.

[0056] In an optional embodiment, when the water pressure is in the low pressure range, the first flow limiting part 22 is disconnected from the base 21 and the second flow limiting part 23 is disconnected from the first flow limiting part 21 and the flow is connected; when the water pressure rises to the medium pressure range, the first flow limiting part 22 and the base 21 close to seal the flow channel, and the second flow limiting part 23 is disconnected from the first flow limiting part 22 and the flow is connected; when the water pressure rises to the high pressure range, the first flow limiting part 22 and the base 21 close to seal the flow channel, and the second flow limiting part 23 and the first flow limiting part 21 close to seal the flow channel.

[0057] Specifically, when the water pressure is P1, both the first flow-limiting part 22 and the second flow-limiting part 23 are connected to the base 21. When the water pressure is P2, the first flow-limiting part 22 is closed to the base 21, and the second flow-limiting part 23 is connected. When the water pressure is P3, both the first flow-limiting part 22 and the second flow-limiting part 23 are closed to the base 21. P1 is less than P2 and less than P3. P1 can represent a low-pressure range, P2 can represent a medium-pressure range, and P3 can represent a high-pressure range. That is, when the water pressure is low, the first flow-limiting part is disconnected from the base 21, and the second flow-limiting part 23 is disconnected from the first flow-limiting part 22. Specifically, there is a gap between the first flow-limiting element 222 and the base 21, and a gap between the second flow-limiting element 232 and the first flow-limiting element 222. Water can pass through the gap, the third throttling orifice 241, the second throttling orifice 234, and the first throttling orifice 224, and be discharged through the base 21. When the water pressure is medium, the first flow-limiting part 22 closes with the base 21, and the second flow-limiting part 23 is connected to the first flow-limiting part 22. Specifically, the first flow-limiting part 222 abuts against the base 21 and thus closes, and there is a gap between the second flow-limiting part 232 and the first flow-limiting part 222. Water can flow through the gap, the third throttling orifice 241, the second throttling orifice 234, and the first throttling orifice 224, and be discharged through the base 21. When the water pressure is high, the first flow-limiting part 22 closes with the base 21, and the second flow-limiting part 23 closes with the first flow-limiting part 22. Specifically, the first flow-limiting part 222 abuts against the base 21 and thus closes, and the second flow-limiting part 232 abuts against the first flow-limiting part 222. Water can flow through the third throttling orifice 241, the second throttling orifice 234, and the first throttling orifice 224, and be discharged through the base 21.

[0058] Unlike the prior art, this application discloses a water valve that includes a flow limiting device, which is the flow limiting device of any of the above embodiments.

[0059] Unlike existing technologies, this application discloses a smart toilet that includes a flow limiting device, which is the flow limiting device described in any of the above embodiments.

[0060] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A current limiting device, characterized in that, The current limiting device includes: The valve body has an accommodating space formed inside it, and an inlet structure and an outlet structure communicating with the accommodating space are formed on the valve body. A flow limiting component is disposed within the water outlet structure, and the flow limiting component includes a base, a first flow limiting part, and a second flow limiting part. The flow limiting component consists of a second flow limiting part, a first flow limiting part, and a base in sequence along the water flow direction. The outer diameters of the first flow limiting part and the second flow limiting part are both smaller than the inner diameter of the water outlet structure. The base is provided with a through hole, and the second flow limiting part is connected to the through hole. The first current-limiting part is slidably connected to the base, and the second current-limiting part is slidably connected to the first current-limiting part; The flow limiting component adjusts the conduction state between the first flow limiting part, the second flow limiting part, and the base based on water pressure to regulate the noise generated by the water flow of the flow limiting device.

2. The current limiting device according to claim 1, characterized in that, The water outlet structure includes at least a first water outlet pipe and a second water outlet pipe, wherein a first flow limiting component is provided in the first water outlet pipe and a second flow limiting component is provided in the second water outlet pipe; The first current limiting component and the second current limiting component have different flow areas.

3. The current limiting device according to claim 1 or 2, characterized in that, The first current limiting unit includes: The first elastic element and the first flow limiting element, wherein a boss is formed on one end face of the first flow limiting element, and the first flow limiting element is provided with a plurality of through first throttling holes; A first groove is formed on the base, and the first elastic member is sleeved on the outer side wall of the boss, with both ends abutting against the first flow limiting member and the base respectively. The inner diameter of the first groove is smaller than the diameter of the first flow restrictor.

4. The current limiting device according to claim 3, characterized in that, The second current limiting part includes: The second elastic element and the second flow limiting element are provided with a sliding rod at one end of the second flow limiting element near the base, and the sliding rod passes through the through hole of the first flow limiting element and the through hole of the base in sequence. A plurality of second throttling holes are provided through the second flow limiting element. The second elastic element is sleeved on the outer wall of the slide rod, and its two ends abut against the first flow limiting element and the second flow limiting element, respectively.

5. The current limiting device according to claim 4, characterized in that, A limiting member is provided on the base. The limiting member is connected to the inner sidewall of the through hole. A slot is provided on the limiting member, and the slide rod is movably connected in the slot.

6. The current limiting device according to claim 4, characterized in that, The first flow limiting member has a second groove formed on the end face away from the boss, and the second elastic member is at least partially located in the second groove. The inner diameter of the second groove is smaller than the diameter of the second flow limiting member.

7. The current limiting device according to claim 4, characterized in that, The current limiting component includes a throttling plate, and the throttling plate is provided with a plurality of third throttling orifices; The second flow restrictor has a third groove formed on the side away from the slide bar, and the throttling plate is disposed in the third groove.

8. The current limiting device according to claim 7, characterized in that, The flow areas of the first throttling orifice, the second throttling orifice, and the third throttling orifice decrease sequentially. When the water pressure is in the low pressure range, the first flow limiting part is disconnected from the base and connected, and the second flow limiting part is disconnected from the first flow limiting part and connected. When the water pressure rises to the medium pressure range, the first flow limiting part closes with the base to seal the flow channel, and the second flow limiting part separates from the first flow limiting part for conduction. When the water pressure rises to the high pressure range, the first flow limiting part closes with the base to seal the flow channel, and the second flow limiting part closes with the first flow limiting part to seal the flow channel.

9. A water valve, characterized in that, The water valve includes the flow limiting device as described in any one of claims 1-8.

10. A smart toilet, characterized in that, The smart toilet includes a flow limiting device as described in any one of claims 1-8.

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