Distributing valve with external pressure relief channel, toilet flushing system and toilet
The distributing valve with an external pressure relief channel addresses switching instability in multiple-outlet valves by using diaphragm pressure differences to control water flow, ensuring efficient and reliable channel switching.
Patent Information
- Application Number
- JP2025507850
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-08-18
- Filing Date
- 2023-08-18
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2043-08-18
AI Technical Summary
Existing hydraulic switching valves with multiple outlets suffer from slow switching speed and instability due to small pressure differences, leading to ineffective waterway distribution when pressure relief occurs.
A distributing valve with an external pressure relief channel, featuring a switching member and drive mechanism that prevents pressure relief from communicating with water outlets, utilizing pressure differences across diaphragms to control water flow through separate channels, ensuring reliable and efficient switching.
The valve achieves stable, labor-saving one-way/two-way channel switching with a single drive mechanism, preventing slow switching speeds and loss of function by directly draining pressure relief water outside the valve body, enhancing operational reliability.
Smart Images

Figure 2025528196000001_ABST
Abstract
Description
[Technical Field]
[0001] This application is based on and claims priority from a Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on August 18, 2022, bearing application number 202210992643.3 and entitled "Distributing valve with external pressure relief channel," the disclosure of which is incorporated herein by reference in its entirety.
[0002] The present invention relates to the field of waterway control technology, and more particularly to a dispensing valve, toilet flushing system, and toilet having an external pressure relief channel. [Background technology]
[0003] The general hydraulic on-off valves on the market are usually mainly used for opening and closing a single-function waterway, and in their application process, the valve body is opened and closed by switching the pressure, and their structure and function are relatively simple, which cannot adequately meet the demand for more waterway expansion functions. When multiple waterway functions are required, the number of corresponding valve bodies needs to be increased accordingly, which is inconvenient to apply and takes up space.
[0004] In the pressure relief design of common commercially available hydraulically operated waterway switching valves, the back pressure chamber is usually connected to the outlet port to discharge the water flow generated during the pressure relief process. While this solution is feasible for single-function valve body opening and closing control, when used in a self-hydraulic controlled single-inlet / multiple-outlet switching valve, it has some functional defects. That is, after pressure relief begins, multiple outlet waterways will be connected to the pressure relief waterway. In this case, the pressure difference between the force-receiving surface of the switching valve core is small and the chamber pressure difference is small, which affects the waterway distribution switching, resulting in slow switching speed or loss of switching function and poor switching stability.
[0005] Therefore, improving the stability of hydraulic switching of a multiple waterway switching valve in hydraulic control is one way to extract greater value from hydraulic control valves. Summary of the Invention [Problem to be solved by the invention]
[0006] In response to the deficiencies present in the prior art, it is an object of the present invention to provide a dispensing valve, toilet flushing system, and toilet having an external pressure relief channel. [Means for solving the problem]
[0007] To achieve the above objectives, the present invention provides the following technical solutions:
[0008] A distributing valve having an external pressure relief waterway, comprising a valve body, a switching member installed within the valve body, and a drive mechanism for operating the switching member, wherein the valve body is provided with a water inlet, a first water outlet, and a second water outlet, the switching member is connected to the valve body so as to be slidable by water pressure, the switching member is used to control the first water outlet and the second water outlet so as to communicate with the water inlet, respectively, and a pressure relief waterway is provided in the drive mechanism or the valve body, and the pressure relief port of the pressure relief waterway drains water directly to the outside of the valve body, preventing the pressure relief port from communicating with the first water outlet and the second water outlet.
[0009] Furthermore, the switching member comprises an upper water stop diaphragm, a lower water stop diaphragm, and a slide rod, the upper water stop diaphragm is fitted to one end of the slide rod, and the lower water stop diaphragm is fitted to the other end of the slide rod, the upper water stop diaphragm divides the inside of the valve body into a water supply chamber and a back pressure chamber, a pressure relief hole is provided in the back pressure chamber, the opening and closing of the pressure relief hole is controlled by the drive mechanism, and the pressure relief hole communicates with the pressure relief water passage when in an open state, the water supply chamber comprises a first chamber body and a second chamber body, the first chamber body communicates with the water supply port, and the second chamber body communicates with the water supply port. The back pressure chamber is connected to the second water outlet, the upper water stop diaphragm is provided with a thin water hole connecting the first chamber body to the back pressure chamber, the second chamber body is provided with a first opening for connecting to the first chamber body, and the opening and closing of the first opening is controlled by the upper water stop diaphragm, the slide rod is slidably drilled into the second chamber body, and a portion of the slide rod hermetically passes through the second chamber body and enters the first chamber body, and the first chamber body is provided with a second opening for connecting to the first water outlet, and the opening and closing of the second opening is controlled by the lower water stop diaphragm.
[0010] Furthermore, when the pressure relief hole is closed, the water supply port communicates with the first water outlet, and when the pressure relief hole is open, the water supply port communicates with the second water outlet.
[0011] Furthermore, a fixed frame for engaging and connecting the upper water stop diaphragm is provided at one end of the slide rod, and a hollow thin water column is provided at a position corresponding to the thin water hole of the fixed frame, and the hollow thin water column passes through the thin water hole.
[0012] Furthermore, the other end of the slide rod passes through the second opening, and the lower water stop diaphragm is located outside the second opening.
[0013] Furthermore, a seal ring is further fitted to the slide rod, and the seal ring is fitted into the second chamber body in a sealing manner when the slide rod exits the second chamber body.
[0014] Furthermore, the radial cross section of the seal ring is V-shaped.
[0015] Furthermore, the driving mechanism is an electromagnetic valve head or a mechanical switch.
[0016] The mechanical switch further comprises a fixing bracket, a push rod, a transmission rod and a reset spring, the push rod is hingedly connected to one end of the transmission rod for controlling the transmission rod to move, the fixing bracket is fixed to the valve body and has an internal chamber, the other end of the transmission rod is disposed in the internal chamber and is connected to a plug for opening and closing the pressure relief hole via a connecting block, the reset spring is fitted on the outside of the transmission rod and is located in the internal chamber outside the connecting block and is used to reset the plug.
[0017] Furthermore, the solenoid valve head comprises a fixed bracket, the fixed bracket is fixed to the valve body, a coil assembly is mounted within the fixed bracket, a movable iron core is movably mounted on the coil assembly, and a plug is mounted on one end of the movable iron core for opening and closing the pressure relief hole, and a reset spring is fitted outside the movable iron core and used to reset the movable iron core.
[0018] The present invention further provides a toilet flushing system, comprising: a pump pressurized water supply pipe; a jet line; a rim line; and a dispensing valve having an external pressure relief passage as described above, wherein the water supply inlet is connected to the pump pressurized water supply pipe, the first water outlet is connected to the rim line, and the second water outlet is connected to the jet line.
[0019] The present invention further provides a toilet, comprising a toilet bowl and a toilet flushing system as described above, wherein the rim conduit communicates with a rim hole or rim nozzle located at the top of the toilet bowl, and the spray conduit communicates with a spray opening or spray nozzle located at the bottom of the toilet bowl.
[0020] The beneficial effects of the present invention are as follows:
[0021] The distributing valve with an external pressure relief channel according to the present invention can realize a one-way / two-way channel switching function by simply arranging one drive mechanism, and the water supply port is connected to the first water outlet and the second water outlet by sliding the switching member, thereby realizing water channel switching. At the same time, the pressure relief port of the pressure relief channel directly discharges water to the outside of the valve body, and when the pressure relief hole opens and channel switching is performed, a situation occurs in which the three water channels, the rim channel, the injection channel and the pressure relief channel, are connected, which results in a slow switching speed or a loss of switching function due to a small pressure difference between the pressure-receiving surfaces of the switching member.
[0022] The distributing valve with external pressure relief waterway according to the present invention adopts a pilot valve structure, and utilizes the pressure difference on both sides of the upper water stop diaphragm to move the slide rod up and down, and further realizes that the water supply port is connected to the first water outlet and the second water outlet respectively, which makes the structure reliable and the operation more labor-saving. In addition, a seal ring is fitted on the outside of the slide rod, which allows the slide rod to slide up and down to realize waterway switching, while at the same time preventing communication between the second chamber body and the first water outlet.
[0023] The dispensing valve with external pressure relief channel, toilet flushing system and toilet according to the present invention can select an electromagnetic valve head or a mechanical switch as its driving mechanism according to the actual situation, and has a wide range of applications. [Brief explanation of the drawings]
[0024] In order to more clearly describe the embodiments of the present invention or the technical solutions of the prior art, the following briefly describes the drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any creative efforts.
[0025] [Figure 1]1 is an exploded view of a dispensing valve having an external pressure relief channel according to the present invention. FIG. [Figure 2] 1 is a schematic diagram of a dispensing valve having an external pressure relief channel according to the present invention; [Figure 3] 1 is a schematic diagram of a pressure relief vent having an external pressure relief channel in accordance with the present invention; [Figure 4] FIG. 1 is a top view of a dispensing valve having an external pressure relief channel according to the present invention. [Figure 5] FIG. 4 is a cross-sectional view of a portion BB in FIG. 3. [Figure 6A] 1 is a schematic diagram of the first outlet of a distributing valve having an external pressure relief channel according to the present invention; FIG. [Figure 6B] 5B is a cross-sectional view of the pressure relief channel in the state of FIG. 5A (a cross-sectional view of the AA portion of FIG. 3). [Figure 7A] 1 is a schematic diagram of the second outlet of a distributing valve having an external pressure relief channel according to the present invention; FIG. [Figure 7B] 6B is a cross-sectional view of the pressure relief channel in the state of FIG. 6A (a cross-sectional view of the AA portion of FIG. 3). [Figure 8] 1 is an exploded view of a switching member of a dispensing valve having an external pressure relief channel according to the present invention; FIG. [Figure 9] 1 is a cross-sectional view of a switching member of a dispensing valve having an external pressure relief channel according to the present invention; [Figure 10] 1 is a schematic diagram showing the use of an electromagnetic valve head in the driving device of a distributing valve having an external pressure relief channel according to the present invention; FIG. [Explanation of symbols]
[0026] 10 - valve body, 101 - water inlet, 102 - first water outlet, 103 - second water outlet, 201 - first chamber body, 202 - second chamber body, 301 - first opening, 302 - second opening, 303 - back pressure chamber, 304 - pressure relief hole, 40 - switching member, 401 - slide rod, 402 - fixing frame, 4021 - hollow thin water column, 403 - upper water stop diaphragm, 4031 - thin water hole, 404 - lower water stop diaphragm, 405 - cooling ring, 501 - mechanical switch, 5011 - fixing bracket - I, 5012 - pushing rod, 5013 - transmission rod, 5014 - reset spring - I, 5015 - connecting block, 5016 - plug - I, 601 - solenoid valve head, 6011 - fixing bracket - II, 6012 - moving iron core, 6013 - reset spring - II, 6014 - plug - II, 70 - pressure relief water channel, 701 - pressure relief port. DETAILED DESCRIPTION OF THE INVENTION
[0027] The present invention will be described in detail below with reference to FIGS.
[0028] A dispensing valve with an external pressure relief channel comprises a valve body (10), a switching member (40) installed within the valve body (10), and a drive mechanism for operating the switching member (40). The valve body (10) is provided with a water inlet (101), a first water outlet (102), and a second water outlet (103). The switching member (40) is connected to the valve body (10) so as to be slidable by water pressure. The switching member (40) is used to control the first water outlet (102) and the second water outlet (103) to communicate with the water inlet (101). The valve body (10) is provided with a pressure relief channel (70). A pressure relief port (701) of the pressure relief channel (70) directly drains water outside the valve body (10), preventing the pressure relief port (701) from communicating with the first water outlet (102) and the second water outlet (103). The valve body (10) is assembled from multiple parts. In another embodiment, the pressure relief channel is provided in the drive mechanism.
[0029] In this embodiment, a single drive mechanism is sufficient to achieve a one-way / two-way waterway switching function, and the sliding of the switching member 40 allows the water supply port 101 to communicate with the first water outlet 102 and the second water outlet 103, respectively, thereby realizing waterway switching. At the same time, the pressure relief port 701 of the pressure relief waterway 70 directly drains water to the outside of the valve body 10, and when the pressure relief hole 304 opens and waterway switching is performed, a situation occurs in which the three waterways, the rim waterway, the injection waterway, and the pressure relief waterway, become connected, which prevents a slow switching speed or loss of the switching function due to a small pressure difference between each waterway.
[0030] In this embodiment, the switching member 40 comprises an upper water stop diaphragm 403, a lower water stop diaphragm 404, and a slide rod 401, the upper water stop diaphragm 403 is fitted to one end of the slide rod 401, and the lower water stop diaphragm 404 is fitted to the other end of the slide rod 401, the upper water stop diaphragm 403 divides the inside of the valve body 10 into a water supply chamber and a back pressure chamber 303, the back pressure chamber 303 is provided with a pressure relief hole 304, and the opening and closing of the pressure relief hole 304 is controlled by a drive mechanism, the water supply chamber comprises a first chamber body 201 and a second chamber body 202, the first chamber body 201 is connected to a water supply port 101, and the second chamber body 202 is connected to a second water outlet 103 The upper water stop diaphragm 403 has a thin water hole 4031 that connects the first chamber body 201 and the back pressure chamber 303, the second chamber body 202 has a first opening 301 that connects to the first chamber body 201, and the opening and closing of the first opening 301 is controlled by the upper water stop diaphragm 403, the slide rod 401 is slidably drilled into the second chamber body 202, and a portion of the slide rod hermetically passes through the second chamber body 202 and enters the first chamber body 201, and the first chamber body 201 has a second opening 302 that connects to the first water outlet 102, and the opening and closing of the second opening 302 is controlled by the lower water stop diaphragm 404.
[0031] In this embodiment, the pressure difference on both sides of the upper water stop diaphragm 403 is used to move the slide rod 401 up and down, and the water supply port 101 is connected to the first water outlet 102 and the second water outlet 103, respectively, making the structure reliable and less labor-intensive to operate. A seal ring 405 is fitted around the slide rod 401, allowing the slide rod 401 to slide up and down to switch the water path while preventing communication between the second chamber body 202 and the first water outlet 102. When the pressure relief hole 304 is closed, the water supply port 101 is connected to the first water outlet 102, and when the pressure relief hole 304 is open, the water supply port 101 is connected to the second water outlet 103.
[0032] In this embodiment, a fixed frame 402 for engaging and connecting the upper water stop diaphragm 403 is provided at one end of the slide rod 401, and one hollow thin water column 4021 is provided at a position corresponding to the thin water hole 4031 of the fixed frame 402. The hollow thin water column 4021 passes through the thin water hole 4031, preventing the thin water hole 4031 from deforming and affecting the passage of water flow. The other end of the slide rod 401 passes through the second opening 302, and the lower water stop diaphragm 404 is located outside the second opening 302.
[0033] In this embodiment, a seal ring 405 is further fitted to the slide rod 401, and the seal ring 405 is hermetically fitted into the second chamber body 202 when the slide rod 401 is inserted into the second chamber body 202. Furthermore, the radial cross section of the seal ring 405 is V-shaped.
[0034] In this embodiment, the driving mechanism is a mechanical switch 501. The mechanical switch 501 includes a fixing bracket-I 5011, a pushing rod 5012, a transmission rod 5013, and a reset spring-I 5014. The pushing rod 5012 is hingedly connected to one end of the transmission rod 5013 to control the transmission rod 5013 to move. The fixing bracket-I 5011 is fixed to the valve body 10. The fixing bracket-I 5011 has an internal chamber. The other end of the transmission rod 5013 is disposed in the internal chamber and is connected to a plug-I 5016 via a connecting block 5015 for opening and closing the pressure relief hole 304. The reset spring-I 5014 is fitted on the outside of the transmission rod 5013 and is located in the internal chamber outside the connecting block 5015, and is used to reset the plug-I 5016.
[0035] In another embodiment, as shown in FIG. 10 , the solenoid valve head 601 includes a fixed bracket-II 6011, which is fixed to the valve body 10, a coil assembly is disposed within the fixed bracket-II 6011, a movable iron core 6012 is movably disposed on the coil assembly, and a plug-II 6014 is disposed at one end of the movable iron core 6012 for opening and closing the pressure relief hole 304, and a reset spring-II 6013 is fitted on the outside of the movable iron core 6012 and is used to reset the movable iron core 6012.
[0036] Example 1 When the mechanical switch 501 is used in the driving mechanism, when the push rod 5012 is not under pressure, that is, the plug-I 5016 blocks the pressure relief hole 304 under the action of the reset spring-I 5014, the external water source enters the valve body 10 through the water supply port 101, and then enters the back pressure chamber 303 through the hollow thin water column 4021, so that the pressure in the back pressure chamber 303 is greater than that of the water supply chamber, the slide rod 401 moves to the left, the upper water stop diaphragm 403 seals the first opening 301, and at the same time, the lower water stop diaphragm 404 opens the second opening 302, as shown in Figure 6A, to connect the water supply port 101 to the first water outlet 102, and at this time, as shown in Figure 6B, the plug-I 7B, the pressure relief port 701 drains water to the outside of the valve body 10, so that the pressure in the water supply chamber is greater than that in the back pressure chamber 303. The slide rod 401 moves to the right, and the lower water stop diaphragm 404 seals the second opening 302. At the same time, the upper water stop diaphragm 403 opens the first opening 301, connecting the water supply port 101 to the second water outlet 103.
[0037] Example 2 When the solenoid valve head 601 is used for the driving mechanism, the principle of water channel switching is the same as in the first embodiment, only the method of driving the plug is different. That is, when the solenoid valve head 601 is not energized, the plug-II 6014 blocks the pressure relief hole 304 under the action of the reset spring-II 6013, so that the pressure in the back pressure chamber 303 is greater than that in the water supply chamber, causing the slide rod 401 to move left, causing the upper water stop diaphragm 403 to seal the first opening 301, and at the same time, the lower water stop diaphragm 404 to open the second opening 302, connecting the water supply port 101 to the first water outlet 102. When the solenoid valve head 601 is energized, the coil assembly attracts the movable iron core 6012, thereby opening the pressure relief hole 304, causing the plug-II 6014 is driven, and the pressure relief port 701 of the pressure relief waterway 70 drains water to the outside of the valve body 10, so that the pressure in the water supply chamber is greater than the back pressure chamber 303, causing the slide rod 401 to move to the right, and the lower water stop diaphragm 404 seals the second opening 302; at the same time, the upper water stop diaphragm 403 opens the first opening 301, connecting the water supply port 101 to the second water outlet 103.
[0038] The toilet flushing system according to the present invention comprises a pump pressurized water supply pipe, a jet pipe, a rim pipe, and a distributing valve having an external pressure relief water passage as described above, wherein the water supply inlet is connected to the pump pressurized water supply pipe, the first water outlet is connected to the rim pipe, and the second water outlet is connected to the jet pipe. The pump pressurized water supply pipe may be connected to the water outlet end of the pump, and the water inlet end of the pump may be connected to the toilet's water tank. When the pump is started, the pump extracts water from the water tank and realizes the jet water outlet and / or rim water outlet through the distributing valve.
[0039] The present invention further provides a toilet, comprising a toilet bowl and a toilet flushing system as described above, wherein the rim conduit communicates with a rim hole or rim nozzle located at the top of the toilet bowl, and the spray conduit communicates with a spray opening or spray nozzle located at the bottom of the toilet bowl.
[0040] The above examples are only intended to illustrate the technical ideas and features of the present invention, and the purpose is to enable those skilled in the art to understand and practice the contents of the present invention, and the protection scope of the present invention cannot be limited thereby. Any equivalent changes or modifications made based on the essence and spirit of the present invention shall be included within the protection scope of the present invention. [Industrial Applicability]
[0041] The present invention provides a distributing valve with an external pressure relief water channel, a toilet flushing system, and a toilet, wherein the distributing valve comprises a valve body, a switching member installed in the valve body, and a drive mechanism for operating the switching member, the valve body is provided with a water inlet, a first water outlet, and a second water outlet, the switching member is connected to the valve body so as to be slidable by water pressure, the switching member is used to control the first water outlet and the second water outlet to communicate with the water inlet, a pressure relief water channel is provided in the valve body, and the pressure relief port of the pressure relief water channel drains water to the outside of the valve body, and when the pressure relief hole is opened and the water channel switching is performed, a state occurs in which the three water channels, the rim channel, the injection channel, and the pressure relief water channel, become connected, which prevents the switching speed from being slow or the switching function from becoming ineffective due to the small pressure difference between the pressure-receiving surfaces of the switching member, and has good industrial practicality.
Claims
1. A distributing valve having an external pressure relief channel, comprising: a valve body; a switching member installed within the valve body; and a drive mechanism for operating the switching member, wherein the valve body is provided with a water inlet, a first water outlet, and a second water outlet, wherein the switching member is slidably connected to the valve body by water pressure, and the switching member is used to control the first water outlet and the second water outlet so that they communicate with the water inlet, respectively, and wherein the drive mechanism or the valve body is provided with a pressure relief channel, and the pressure relief port of the pressure relief channel drains water to the outside of the valve body, preventing the pressure relief port from communicating with the first water outlet and the second water outlet.
2. The switching member comprises an upper water stop diaphragm, a lower water stop diaphragm and a slide rod, the upper water stop diaphragm is fitted to one end of the slide rod and the lower water stop diaphragm is fitted to the other end of the slide rod, the upper water stop diaphragm divides the inside of the valve body into a water supply chamber and a back pressure chamber, a pressure relief hole is provided in the back pressure chamber, the opening and closing of the pressure relief hole is controlled by the drive mechanism, and the pressure relief hole communicates with the pressure relief water passage when in an open state, the water supply chamber comprises a first chamber body and a second chamber body, the first chamber body communicates with the water supply port and the second chamber body communicates with the second water outlet, 2. The distributing valve with an external pressure relief water passage according to claim 1, wherein the water stop diaphragm is provided with a thin water hole communicating between the first chamber body and the back pressure chamber, the second chamber body is provided with a first opening communicating with the first chamber body, the opening and closing of the first opening is controlled by the upper water stop diaphragm, the slide rod is slidably drilled into the second chamber body, and a portion of the slide rod hermetically exits the second chamber body and enters the first chamber body, the first chamber body is provided with a second opening communicating with the first water outlet, the opening and closing of the second opening is controlled by the lower water stop diaphragm.
3. 3. The distributing valve with an external pressure relief water passage according to claim 2, wherein when the pressure relief hole is closed, the water supply port communicates with the first water outlet, and when the pressure relief hole is open, the water supply port communicates with the second water outlet.
4. 3. The distributing valve with an external pressure relief water passage according to claim 2, characterized in that a fixing frame is provided at one end of the slide rod for engaging and connecting the upper water stop diaphragm, and a hollow thin water column is provided at a position of the fixing frame corresponding to the thin water hole, and the hollow thin water column passes through the thin water hole.
5. 3. The dispensing valve with an external pressure relief channel according to claim 2, wherein the other end of the slide rod passes through the second opening, and the lower water stop diaphragm is located outside the second opening.
6. 3. The dispensing valve with an external pressure relief channel according to claim 2, wherein a seal ring is further fitted to the slide rod, and the seal ring is fitted into the second chamber body in a sealing manner when the slide rod exits the second chamber body.
7. 7. The dispensing valve with an external pressure relief channel according to claim 6, wherein the radial cross section of the sealing ring is V-shaped.
8. The distributing valve with an external pressure relief channel according to any one of claims 2 to 7, wherein the driving mechanism is an electromagnetic valve head or a mechanical switch.
9. 9. The distributing valve with external pressure relief channel according to claim 8, wherein the mechanical switch comprises a fixing bracket, a pushing rod, a transmission rod and a reset spring, the pushing rod is hingedly connected to one end of the transmission rod for controlling the transmission rod to move, the fixing bracket is fixed to the valve body, the fixing bracket has an internal chamber, the other end of the transmission rod is disposed in the internal chamber and is connected to a plug for opening and closing the pressure relief hole via a connecting block, the reset spring is fitted on the outside of the transmission rod and is located in the internal chamber outside the connecting block, and is used to reset the plug.
10. 9. The distributing valve with an external pressure relief channel according to claim 8, wherein the solenoid valve head comprises a fixed bracket, the fixed bracket is fixed to the valve body, a coil assembly is installed within the fixed bracket, a movable iron core is movably installed on the coil assembly, and a plug is installed at one end of the movable iron core for opening and closing the pressure relief hole, and a reset spring is fitted outside the movable iron core and used to reset the movable iron core.
11. A toilet flushing system comprising a pump pressurized water supply pipe, a spray pipe, and a rim pipe, and further comprising a distributing valve having an external pressure relief water passage according to any one of claims 1 to 10, wherein the water supply inlet is connected to the pump pressurized water supply pipe, the first water outlet is connected to the rim pipe, and the second water outlet is connected to the spray pipe.
12. 12. A toilet having a toilet bowl, further comprising the toilet flushing system of claim 11, wherein the rim conduit communicates with a rim hole or rim nozzle located at the top of the toilet bowl, and the jet conduit communicates with a jet or jet nozzle located at the bottom of the toilet bowl.
Citation Information
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