Drainage device, sanitary ware and flushing method of sanitary ware

Abstract

The present invention relates to a drainage device, a sanitary ware device and a flushing method for a sanitary ware device. The drainage device includes: a driving assembly, a driven assembly and a transmission assembly. The driving assembly has a driving cavity for accommodating a fluid and having a variable space size. The driven assembly has a driven cavity for accommodating a fluid and having a variable space size. The transmission assembly is disposed between the driving assembly and the driven assembly. When the driving cavity expands under a driving external force, the transmission assembly can be driven, and the driving external force is transmitted by the transmission assembly, so that the driven cavity is compressed and becomes smaller to discharge the fluid stored in the driven cavity. When the driving cavity expands under the driving external force, the change amount of its expansion space is smaller than the change amount of the compression space of the driven cavity. A regulation assembly, which is used to control the on-off of the flow channel between the driving cavity and the fluid supply source. The regulation assembly is also used to adjust the fluid supplement of the driven cavity. After the compression of the driven cavity is completed or interrupted, the regulation assembly is further used to guide and supplement the fluid in the driving cavity to the driven cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of sanitary equipment, and particularly to a drainage device, a sanitary equipment and a flushing method for the sanitary equipment. Background Art

[0002] As a kind of sanitary equipment, the development trend of intelligent toilets is the same as that of mobile phones. The cover plate is made thinner and thinner, almost flat, so as to improve the aesthetic degree and save indoor space. The ceramic water tank of traditional toilets needs to meet the height requirement to have enough potential energy and water volume to flush the toilet cleanly. However, the height of the ceramic water tank will cause the overall intelligent toilet to occupy a large indoor space, making this method gradually eliminated.

[0003] The structure of the ceramic-tankless toilets on the market usually directly uses the tap water pressure for flushing, which has high requirements for water pressure. However, in old communities, due to unstable water pressure, when the water pressure is insufficient, the speed of the water source output flow is slow, and it is impossible to ensure that the toilet is washed and flushed cleanly.

[0004] In addition, some ceramic-tankless toilets ensure the water volume by setting a booster pump, but this method makes the toilet structure complex, expensive and easy to break. Summary of the Invention

[0005] Based on this, in view of the problem that the water pressure of sanitary equipment cannot ensure the flow rate due to water source limitations, and adding a booster pump will lead to a complex structure, it is necessary to provide a drainage device, a sanitary equipment and a flushing method for the sanitary equipment that can improve the water volume supply in a short time, automatically supplement the water storage and realize cyclic flushing.

[0006] A drainage device, comprising:

[0007] A driving component, having a driving cavity for accommodating a fluid and with a variable space size;

[0008] A driven component, having a driven cavity for accommodating a fluid and with a variable space size;

[0009] A transmission component, arranged between the driving component and the driven component. When the driving cavity expands under the action of an external driving force, the transmission component transmits the external driving force to make the driven cavity compress and become smaller to discharge the fluid, and the change amount of the compression space of the driven cavity is greater than the change amount of the expansion space of the driving cavity;

[0010] A regulation component, which is used to control the on-off of the flow passage between the driving cavity and the fluid supply source; the regulation component is also used to adjust the fluid supplement of the driven cavity; after completing or interrupting the compression of the driven cavity, the regulation component is also used to guide and supplement the fluid in the driving cavity to the driven cavity.

[0011] The above drainage device, when the driving cavity expands, the spatial change amount of the driven cavity is greater than that of the driving cavity. Therefore, the amount of fluid discharged from the driven cavity is greater than the amount of fluid entering the driving cavity, so that the amount of discharged water can be increased in a short time, and the flushing or sewage discharge effect can be improved. After the drainage of the driven cavity is completed, the control component controls the cutoff of the flow path between the driving cavity and the fluid supply source, and controls the replenishment of the driven cavity with fluid. When the driven cavity expands, it reacts on the driving cavity, and the fluid discharged from the driving cavity is guided by the control component to replenish the driven cavity. After the replenishment of the fluid in the driven cavity is completed, the drainage device can perform the next drainage operation to realize the cyclic operation of the drainage device. In addition, the drainage device makes full use of the water volume amplification form, and allows a larger volume of fluid to clean the body of the sanitary ware per unit time. At the same volume, a greater flow rate has a better flushing effect on the body. Thus, it solves the problem that the body of the sanitary ware cannot be cleaned thoroughly under low water pressure, or meets the flushing effect with less water, which conforms to the concept of energy conservation and environmental protection today. At the same time, since there is no need to additionally add a booster pump, the complexity of the structure of the drainage device, the increase in cost or the decrease in stability are avoided.

[0012] In one embodiment, the control component further includes a main-side switching valve member and a switch control member; the main-side switching valve member is connected between the fluid supply source and the driving cavity, and when the switch control member is triggered, the fluid supply source and the driving cavity are communicated through the main-side switching valve member.

[0013] In one embodiment, the main-side switching valve member is further connected between the driving cavity and the driven cavity; after the compression of the driven cavity is completed, the driving cavity and the driven cavity are communicated through the main-side switching valve member to guide and replenish the fluid in the driving cavity to the driven cavity.

[0014] In one embodiment, the control component further includes a contraction detection member connected to the driven component, wherein,

[0015] the contraction detection member is used to detect the compression degree of the driven cavity and reset the switch control member to disconnect the driving cavity from the fluid supply source; or,

[0016] the contraction detection member is used to detect the spatial contraction speed of the driven cavity and reset the switch control member to disconnect the driving cavity from the fluid supply source.

[0017] In one embodiment, the control assembly further includes a water tank, which is connected with a liquid level control member, a liquid inlet valve, a liquid supplement pipe and a one-way valve. The liquid inlet valve is arranged between the water tank and the fluid supply source. The liquid level control member adjusts the opening and closing of the liquid inlet valve to keep the fluid in the water tank at a predetermined liquid level. The inner cavity of the water tank is connected to the driven cavity through the liquid supplement pipe, and the one-way valve is arranged on the liquid supplement pipe to prevent the fluid in the driven cavity from flowing back to the water tank. The placement height of the driven cavity is lower than the predetermined liquid level. The main side switching valve member is further used to control the opening and closing of the flow path between the driving cavity and the water tank to guide the fluid in the driving cavity to flow into the water tank.

[0018] A sanitary ware device includes a drainage device and a body connected to the drainage device. The body is provided with a liquid pool, and a sewage outlet is arranged at the bottom of the liquid pool. The fluid discharged from the driven cavity is output to the liquid pool and / or the sewage outlet of the body to wash the inner wall of the liquid pool and / or discharge the dirt from the sewage outlet.

[0019] In one embodiment, it further includes any one of the following technical features:

[0020] The body has a washing water path, and the fluid discharged from the driven cavity is guided by the washing water path to the upper side of the liquid pool so that the fluid can uniformly wash the inner wall of the liquid pool from top to bottom.

[0021] A siphon tube communicating the liquid pool and the sewage outlet is further arranged in the body. The body has a jet water path, and the fluid discharged from the driven cavity is guided by the jet water path to the liquid pool and discharged through the sewage outlet and the siphon tube.

[0022] A method for flushing a sanitary ware device includes the following steps:

[0023] A driving cavity and a driven cavity with variable space size and used for accommodating fluid are provided, wherein the change amount of the expansion space of the driving cavity is smaller than the change amount of the compression space of the driven cavity.

[0024] If a drainage instruction is received, external fluid is allowed to enter the driving cavity. The driving cavity expands and transmits a driving external force, causing the driven cavity to compress and discharge the fluid accommodated in the driven cavity until the compression process of the driven cavity is completed.

[0025] If a water replenishment instruction is received, external fluid is allowed to enter the driven cavity to expand the driven cavity while the driving cavity compresses, and the fluid in the driving cavity is transferred to the driven cavity until the water replenishment process of the driven cavity is completed.

[0026] In one embodiment, when external fluid is injected into the driving cavity, the flow path for the driving cavity to export fluid to the driven cavity is cut off.

[0027] In one embodiment, any one of the following technical features is further included:

[0028] The drainage instruction is removed after a predetermined time, so that the flow path for injecting external fluid into the drive chamber is cut off, and the drive chamber stops expanding to complete the compression process of the driven chamber;

[0029] The drainage instruction is removed after the driven chamber is compressed to a predetermined degree, so that the flow path for injecting external fluid into the drive chamber is cut off, and the drive chamber stops expanding to complete the compression process of the driven chamber;

[0030] Before the compression process of the driven chamber is completed, if a water replenishment instruction is received, the drainage instruction is removed, so that the flow path for injecting external fluid into the drive chamber is cut off, and the drive chamber stops expanding to complete the compression process of the driven chamber.

[0031] In one embodiment, any one of the following technical features is further included:

[0032] The water replenishment instruction is generated after the compression process of the driven chamber is completed, and the flow path for injecting external fluid into the driven chamber is opened;

[0033] The water replenishment instruction is generated when the liquid level in the driven chamber is lower than the predetermined liquid level, and the flow path for injecting external fluid into the driven chamber is opened;

[0034] The water replenishment instruction is generated when the supply of external fluid is interrupted, and the flow path for injecting external fluid into the driven chamber is opened while the flow path for injecting external fluid into the drive chamber is cut off.

[0035] In one embodiment, when the drainage instruction is removed, the flow path for the drive chamber to discharge fluid to the driven chamber is opened.

[0036] In one embodiment, any one of the following technical features is further included:

[0037] The water replenishment instruction is removed after a predetermined time, so that the flow path for injecting external fluid into the driven chamber is cut off, and the driven chamber stops expanding to complete the water replenishment process of the driven chamber;

[0038] The water replenishment instruction is removed after the driven chamber expands to a predetermined degree, so that the flow path for injecting external fluid into the driven chamber is cut off, and the driven chamber stops expanding to complete the water replenishment process of the driven chamber;

[0039] The water replenishment instruction is removed when the driven chamber reaches the predetermined liquid level, so that the flow path for injecting external fluid into the driven chamber is cut off, and the driven chamber stops expanding to complete the water replenishment process of the driven chamber;

[0040] Before the expansion process of the driven cavity is completed, if a drainage instruction is received, the water replenishment instruction is withdrawn, the injection of external fluid into the flow channel of the driven cavity is cut off, and the driven cavity stops expanding to complete the water replenishment process of the driven cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural diagram of a sanitary equipment of the present invention;

[0042] Figure 2 is a schematic structural diagram of a drainage device according to an embodiment of the present invention, wherein the driven cavity stores sufficient fluid, the driving cavity contracts, the switch control member has not been triggered, and the whole drainage device is in a ready state;

[0043] Figure 3A is Figure 2 an enlarged view of part A of the drainage device shown;

[0044] Figure 3B is Figure 2 an enlarged view of part B of the drainage device shown;

[0045] Figure 4 is Figure 2 a schematic structural diagram of the drainage device shown after the state change, wherein the switch control member has been triggered, and the fluid supply source injects fluid into the driving cavity through the main side switching valve member;

[0046] Figure 5 is Figure 4 a schematic structural diagram of the drainage device shown after the state change, wherein the driving cavity expands further relative to Figure 4 and the driven cavity compresses further relative to Figure 4 ;

[0047] Figure 6 is Figure 5 a schematic structural diagram of the drainage device shown after the state change, wherein the driven cavity has completely contracted and the active plate contacts the contraction detection member, and the switch control member resets to connect the driving cavity to the driven cavity through the main side switching valve member;

[0048] Figure 7 is Figure 5 a schematic structural diagram of the drainage device shown after the state change, wherein the lowering of the liquid level detection member opens the secondary side switching valve member, and external fluid injects into the fluid port of the driven cavity through the secondary side switching valve member, promoting the expansion of the driven cavity and the compression of the driving cavity;

[0049] Figure 8A is a schematic structural diagram of a drainage device according to another embodiment of the present invention, wherein the drainage device just starts to perform the drainage process of the driven cavity;

[0050] Figure 8B isFigure 3A Schematic structural diagram of the drainage device shown, wherein the drainage treatment of the driven cavity is about to end;

[0051] Figure 9 Flow schematic diagram of a flushing method for a sanitary device according to the present invention.

[0052] The corresponding relationship between each reference numeral and its meaning in the accompanying drawings is as follows:

[0053] 100, sanitary device; 20, drainage device; 41, driving assembly; 411, driving cavity; F1, main-side preset path; 412, main-side housing; 413, main-side through port; 414, driving plate; 415, main-side flexible member; 4151, conical surface; 4152, conical surface; 418, main-side extension block; 42, driven assembly; 421, driven cavity; F2, secondary-side preset path; 424, transition point; 422, secondary-side flexible bag; 423, secondary-side limiting plate; 426, secondary-side through port; 425, secondary-side housing; 427, driven plate; 428, secondary-side flexible member; 429, secondary-side extension block; 43, transmission assembly; 431, secondary-side support plate; 432, secondary-side push plate; 433, transmission member; 50, regulation and control assembly; 51, main-side switching valve member; 510a, piston rod; 510b, first through port; 510c, second through port; 510d, third through port; 511, main-side input cavity; 512, main-side output cavity; 513, main-side inner guiding port; 514, second elastic sheet; 515, main-side pilot port; 516, main-side guiding hole; 517, main-side balance pipe; 518, baffle; 519, elastic member; 52, switch control member; 54, contraction detection member; 55, secondary-side switching valve member; 550, fourth through port; 551, fifth through port; 552, secondary-side input cavity; 553, secondary-side output cavity; 554, secondary-side inner guiding port; 555, first elastic sheet; 556, secondary-side pilot port; 557, secondary-side guiding hole; 558, secondary-side balance pipe; 559, top pin; 56, liquid level detection member; 53, water tank; 531, liquid level control member; 532, liquid inlet valve; 533, liquid supplement pipe; 534, check valve; 535, predetermined liquid level; 60, drain pipe; 61, siphon elimination valve; 62, high-level section; 30, body; 31, liquid pool; 311, sewage outlet; 32, washing water path; 321, liquid outlet hole; 33, spraying water path; 34, siphon tube; 700, fluid supply source. Detailed implementation manners

[0054] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0059] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0060] Please refer to Figure 1 , a sanitary device 100 according to an embodiment of the present invention, includes a drainage device 20 and a main body 30 connected to the drainage device 20. The main body 30 is provided with a liquid pool 31, and a sewage outlet 311 is provided at the bottom of the liquid pool 31. In one embodiment, the sanitary device 100 is a toilet, and it can be understood that the sanitary device 100 can also be other devices such as a washbasin table, a bathtub, etc. that require flushing and cleaning. As Figures 2 to 7 shown in, the drainage device 20 includes a driving component 41, a driven component 42, a transmission component 43 and a regulation component 50. The regulation component 50 is connected to the driving component 41 and the driven component 42. The regulation component 50 is used to control the working states of the driving component 41 and the driven component 42, and to control the on-off states of an external fluid supply source 700 and the driving component 41 and the driven component 42. The main body 30 may have a washing water channel 32 to guide the fluid in the drainage device 20 to the upper side of the liquid pool 31, so that the fluid can uniformly wash the inner wall of the liquid pool 31 from top to bottom. The main body 30 may also have a jet water channel 33 and a siphon 34 communicating with the sewage outlet 311. The jet water channel 33 guides the fluid in the drainage device 20 to the liquid pool 31 and discharges the dirt in the liquid pool 31 through the sewage outlet 311 and the siphon 34.

[0061] Please refer to Figures 2 to 7 , the driving component 41 has a driving cavity 411 for accommodating fluid and having a variable space size. The driven component 42 has a driven cavity 421 for accommodating fluid and having a variable space size. The transmission component 43 is disposed between the driving component 41 and the driven component 42. When the driving cavity 411 expands due to an external driving force, it can drive the transmission component 43, and use the transmission component 43 to transmit the external driving force, so that the driven cavity 421 is compressed and becomes smaller to discharge the fluid stored in the driven cavity 421. When the driving cavity 411 expands due to an external driving force, the change amount of its expansion space is smaller than the change amount of the compression space of the driven cavity 421. The regulation component 50 is used to control the on-off of the flow channel between the driving cavity 411 and the fluid supply source 700. The regulation component 50 is also used to regulate the fluid supplement of the driven cavity 421. After completing or interrupting the compression of the driven cavity 421, the regulation component 50 is also used to guide and supplement the fluid in the driving cavity 411 to the driven cavity 421.

[0062] During the operation of the drainage device 20, fluid can be pre-injected into the driven cavity 421 to fully expand the internal space of the driven cavity 421. At the same time, the driving cavity 411 is pre-emptied to make the driving cavity 411 in a contracted state. When the fluid supply source 700 that generates the driving external force injects fluid into the contracted driving cavity 411 under the control of the regulation component 50, the driving cavity 411 expands due to the filled fluid. When the driving cavity 411 expands, it transmits the driving external force to the transmission component 43. Through the transmission action of the transmission component 43, the driven cavity 421 is compressed, and the fluid stored in the driven cavity 421 is discharged to the body 30 of the sanitary equipment 100. Since the spatial change amount of the driven cavity 421 is greater than that of the driving cavity 411 when the driving cavity 411 expands, the amount of fluid discharged from the driven cavity 421 is greater than the amount of fluid entering the driving cavity 411, so that the amount of discharged water can be increased in a short time, and the flushing or sewage discharge effect can be improved. After the drainage of the driven cavity 421 is completed, the regulation component 50 controls the cut-off of the flow path between the driving cavity 411 and the fluid supply source 700, and controls the fluid to supplement the driven cavity 421. When the driven cavity 421 expands, it reacts on the driving cavity 411, and the fluid discharged from the driving cavity 411 is guided by the regulation component 50 to supplement the driven cavity 421. After the driven cavity 421 completes the fluid supplement, the drainage device 20 can perform the next drainage operation to realize the cyclic operation of the drainage device 20.

[0063] In some embodiments, the fluid input into the driving cavity 411 generates a driving external force on the driving cavity 411 to make the driving cavity 411 expand. After the compression of the driven cavity 421 is completed, the regulation component 50 is used not only to guide and supplement the fluid in the driving cavity 411 to the driven cavity 421, but also to control the on-off between the driven cavity 421 and the fluid supply source 700 to supplement the fluid provided by the fluid supply source 700 to the driven cavity 421. In some embodiments, the fluid supply source 700 is the output of the municipal tap water pipeline, and the fluid injected into the driving cavity 411 or the driven cavity 421 is tap water. In some other embodiments, the fluid supply source 700 can also be the output of the municipal tap water pipeline after passing through a booster pump, or the pumping output of an external pump body of the sanitary equipment 100 for external water storage.

[0064] In Figures 2 to 7 In the shown embodiment, the drainage device 20 further includes a drain pipe 60 communicating with the driven cavity 421. The drain pipe 60 leads to the liquid pool 31 to guide the fluid discharged from the driven cavity 421 to flow to the liquid pool 31. Specifically, at least a part of the horizontal height of the drain pipe 60 is higher than the horizontal height of the driven cavity 421, and this part is the high-level section 62 of the drain pipe 60.

[0065] The driving component 41 has a main-side port 413, and fluid flows into or out of the driving chamber 411 through the main-side port 413. The driven component 42 has a secondary-side port 426, and fluid flows into or out of the driven chamber 421 through the secondary-side port 426.

[0066] In Figures 2 to 7 the illustrated embodiment, the regulation component 50 includes a main-side switching valve member 51 and a switch control member 52. The switch control member 52 adjusts the passage structure inside the main-side switching valve member 51 according to a signal or an operation. The regulation component 50 further includes a secondary-side switching valve member 55 connected to the driven component 42 and a liquid level detection member 56 connected to the driven component 42. The secondary-side switching valve member 55 is connected between the driven chamber 421 and the fluid supply source 700. The liquid level detection member 56 floats in the driven chamber 421 or the drain pipe 60, or is disposed between the driven chamber 421 and the drain pipe 60, and is used to detect the liquid level height in the driven chamber 421 or the drain pipe 60 and generate a feedback to the secondary-side switching valve member 55. The secondary-side switching valve member 55 switches the on / off of the flow passage between the driven chamber 421 and the fluid supply source 700 according to this feedback.

[0067] In some embodiments, the liquid level detection member 56 is a float, and the floating and lifting direction of the liquid level detection member 56 is limited so that the liquid level detection member 56 can cooperate accurately with the secondary-side switching valve member 55. Specifically, the liquid level detection member 56 is slidably connected to the secondary-side switching valve member 55 or the driven component 42. In Figures 2 to 7 the illustrated embodiment, a part of the liquid level detection member 56 movably penetrates inside the secondary-side switching valve member 55. Specifically, please refer to Figure 3A , the secondary-side switching valve member 55 has a fourth port 550 and a fifth port 551. The fourth port 550 of the secondary-side switching valve member 55 is communicated with the fluid supply source 700, and the fifth port 551 is communicated with the driven chamber 421. When the inside of the secondary-side switching valve member 55 is in a reset state, the fourth port 550 is communicated with the fifth port 551.

[0068] In some other embodiments, the liquid level detection member 56 can also be any one of a mechanical float, a Hall sensor device, a light sensing device, a water pressure sensor device, a current sensor device, etc., which can assist in detecting or discriminating the liquid level height.

[0069] Further, the driven chamber 421 is connected to the drain pipe 60 through a transition 424. The horizontal height of the transition 424 is higher than the main body of the driven chamber 421 and slightly lower than the high-level section 62 of the drain pipe 60. In Figure 2 the illustrated embodiment, the driven chamber 421 is communicated to the transition 424 from its own top side.

[0070] In Figures 2 to 7In the illustrated embodiment, the liquid level detection member 56 is disposed at the transition portion 424. During the fluid replenishment process of the driven chamber 421, when the liquid level in the transition portion 424 of the driven chamber 421 rises to slightly lower than the high-level section 62 of the drain pipe 60 and contacts the liquid level detection member 56, the liquid level detection member 56 floats upward under buoyancy and timely generates feedback to the secondary side switching valve member 55. The secondary side switching valve member 55 cuts off the flow path between the fluid supply source 700 and the driven chamber 421, thereby stopping the fluid from replenishing into the driven chamber 421 and preventing the fluid from automatically flowing out to the main body 30 due to the liquid levels in the driven chamber 421 and the drain pipe 60 exceeding the high-level section 62 of the drain pipe 60. In Figures 2 to 7 In the illustrated embodiment, the fifth port 551 of the secondary side switching valve member 55 communicates with the transition portion 424 of the driven chamber 421. In Figures 2 to 7 In the illustrated embodiment, when the secondary side switching valve member 55 is in a conducting state, the fluid input by the fluid supply source 700 passes through the secondary side switching valve member 55 and enters the transition portion 424 of the driven chamber 421, and automatically flows to the lower side of the driven chamber 421 under its own gravity.

[0071] Specifically, please refer to Figure 3A , the secondary side switching valve member 55 is internally provided with a secondary side input chamber 552 communicating with the fourth port 550 and a secondary side output chamber 553 communicating with the fifth port 551. One side of the secondary side output chamber 553 communicates with the fifth port 551, and a secondary side internal guide port 554 is provided on the other side. The secondary side switching valve member 55 is provided with a first elastic piece 555 between the secondary side input chamber 552 and the secondary side output chamber 553, and the first elastic piece 555 is used to abut against the secondary side internal guide port 554. The fourth port 550 communicates with the secondary side input chamber 552 through a secondary side pilot port 556 on the first elastic piece 555. The secondary side switching valve member 55 is further provided with a secondary side balance pipe 558 for communicating the secondary side input chamber 552 and the secondary side output chamber 553, and one end of the secondary side balance pipe 558 is communicated with the secondary side input chamber 552 through a secondary side guide hole 557. The secondary side switching valve member 55 further includes a top pin 559 movably connected to the main body of the secondary side switching valve member 55, and the top pin 559 is used to block the secondary side guide hole 557. The top pin 559 is connected to the liquid level detection member 56.

[0072] When the liquid level in the driven chamber 421 or the transition 424 is relatively high, the liquid level detection member 56 floats to a relatively high height. The top pin 559 rises with the liquid level detection member 56 and abuts against the secondary side guide hole 557, isolating the secondary side input chamber 552 from the secondary side balance pipe 558. At this time, the fluid entering from the fourth port 550 enters the secondary side input chamber 552 through the secondary side pilot port 556. The fluid accumulated in the secondary side input chamber 552 generates a pressure on one side of the first elastic piece 555 facing away from the secondary side output chamber 553, causing the first elastic piece 555 to reliably abut against the secondary side inner guide port 554. On the other hand, the side of the first elastic piece 555 facing the secondary side output chamber 553 lacks a fluid pressure source, thereby creating an isolation between the secondary side input chamber 552 and the secondary side output chamber 553, and further preventing the fluid from flowing out from the fifth port 551 to the transition 424.

[0073] When the liquid level in the driven chamber 421 or the transition 424 is relatively low, the liquid level control member 531 floats to a relatively low height. The top pin 559 descends with the liquid level detection member 56 and leaves the secondary side guide hole 557, communicating the secondary side input chamber 552 with the secondary side balance pipe 558. At this time, since the secondary side input chamber 552 and the secondary side output chamber 553 are connected through the secondary side balance pipe 558, the fluid pressures on both sides of the first elastic piece 555 reach equilibrium, and the first elastic piece 555 no longer closely adheres to the secondary side inner guide port 554. When the fluid input from the fourth port 550 flows into the secondary side output chamber 553 through the gap between the first elastic piece 555 and the secondary side inner guide port 554, due to the pressure of the fluid, the gap between the first elastic piece 555 and the secondary side inner guide port 554 is further increased. Then, the fluid flowing in from the fourth port 550 enters the secondary side output chamber 553 through the secondary side inner guide port 554 and then flows out from the fifth port 551 to the transition 424.

[0074] Please refer to Figures 2 to 7 , the main side switching valve member 51 is also connected between the driving chamber 411 and the driven chamber 421. That is, the first port 510b of the main side switching valve member 51 having three ports is connected to the fluid supply source 700, the second port 510c is connected to the main side port 413 of the driving chamber 411, and the third port 510d communicates with the driven chamber 421. The regulation assembly 50 further includes a contraction detection member 54 connected to the driven assembly 42. The contraction detection member 54 is used to detect the compression degree of the driven chamber 421 and reset the switch control member 52. In the reset state, the switch control member 52 isolates the driving chamber 411 from the fluid supply source 700, while the driving chamber 411 is communicated with the driven chamber 421.

[0075] In some other embodiments, it can also be that the contraction detection member 54 detects the contraction activity of a part of the inner wall of the driven cavity 421. When the contraction activity of this part of the inner wall of the driven cavity 421 stops and the contraction speed drops to zero, the contraction detection member 54 recognizes that the drainage of the driven cavity 421 has been completed and resets the switch control member 52. After the switch control member 52 is reset, due to the state change of the main side switching valve member 51, the fluid supply source 700 stops injecting fluid into the driving cavity 411.

[0076] Please refer to Figure 2 , which is the ready state before starting drainage in some embodiments. The driving cavity 411 is in a contracted state. The liquid level in the driven cavity 421 rises to near the predetermined height, and the liquid level detection member 56 floats up to cut off the flow path between the driven cavity 421 and the fluid supply source 700, stopping the fluid from being replenished into the driven cavity 421. The first port 510b of the main side switching valve member 51 is isolated from the second port 510c, preventing the fluid supply source 700 from injecting fluid into the driving cavity 411.

[0077] In Figure 3B the shown embodiment, the main side switching valve member 51 is provided with a main side input cavity 511 communicating with the first port 510b and a main side output cavity 512 capable of communicating with the second port 510c. One side of the main side output cavity 512 is used to communicate with the second port 510c, and a main side inner guide port 513 is provided on the other side of the main side output cavity 512. The main side switching valve member 51 is provided with a second elastic piece 514 between the main side input cavity 511 and the main side output cavity 512, and the second elastic piece 514 is used to abut against the main side inner guide port 513. See Figure 3B, the first port 510b communicates with the main-side input chamber 511 through the main-side pilot port 515 on the second elastic piece 514. The main-side switching valve member 51 is also provided with a main-side balance pipe 517 for communicating the main-side input chamber 511 and the main-side output chamber 512. One end of the main-side balance pipe 517 is communicated with the main-side input chamber 511 through the main-side guide hole 516. The main-side switching valve member 51 further includes a piston rod 510a movably connected to the main body of the main-side switching valve member 51. The piston rod 510a is used to block the main-side guide hole 516. The piston rod 510a is connected to the switch control member 52. The main-side switching valve member 51 further includes a retaining piece 518 and an elastic member 519 disposed at the connection between the main-side output chamber 512 and the second port 510c. The retaining piece 518 can abut against one side of the main-side output chamber 512 under the push of the elastic member 519. When the retaining piece 518 abuts against the main-side output chamber 512, the communication between the main-side output chamber 512 and the second port 510c is cut off, so that the first port 510b and the second port 510c are isolated from each other. When the retaining piece 518 abuts against the main-side output chamber 512, the retaining piece 518 is in a position relatively far from the third port 510d, so that a fluid gap is generated between the third port 510d and the retaining piece 518, and the second port 510c and the third port 510d are in a flow-through state. When the elastic member 519 is compressed, the retaining piece 518 can move close to the third port 510d and block the third port 510d. There is a flow-through gap between the port edge of the main-side output chamber 512 and the retaining piece 518, so that the first port 510b and the second port 510c are connected to each other. When the third port 510d is blocked by the elastic piece, the second port 510c and the third port 510d are isolated from each other.

[0078] Specifically, the way to start drainage is as follows: By manually pressing the switch control member 52, the switch control member 52 causes the piston rod 510a in the main-side switching valve member 51 to act through mechanical, electrical or other cooperative actions. In a specific embodiment, after manually pressing the switch control member 52, the switch control member 52 keeps the piston rod 510a in the main-side switching valve member 51 at a position away from the main-side guide hole 516 under the action of the buckle. At this time, since the main-side input chamber 511 and the main-side output chamber 512 are connected through the main-side balance pipe 517, the fluid pressures on both sides of the second elastic piece 514 reach equilibrium, and the second elastic piece 514 is not subjected to a unilateral pressure that makes it close to the main-side inner guide port 513. When the fluid input from the first through port 510b flows into the main-side output chamber 512 through the gap between the second elastic piece 514 and the main-side inner guide port 513, the pressure of the fluid further increases the gap between the second elastic piece 514 and the main-side inner guide port 513. As a result, the fluid flowing in from the first through port 510b enters the main-side output chamber 512 through the main-side inner guide port 513. After the main-side input chamber 511 and the main-side output chamber 512 are connected through the main-side inner guide port 513, the pressure of the fluid acts on the baffle 518, causing the baffle 518 to leave one side of the main-side output chamber 512. At the same time, the baffle 518 compresses the elastic member 519. The direction in which the baffle 518 leaves one side of the main-side output chamber 512 is also the direction in which the baffle 518 approaches the third through port 510d. When the baffle 518 leaves one side of the main-side output chamber 512, it connects the main-side output chamber 512 with the second through port 510c. After the baffle 518 moves closer to the third through port 510d, it blocks the third through port 510d, creating an isolation between the second through port 510c and the third through port 510d.

[0079] Therefore, after starting drainage, the first through port 510b and the second through port 510c are connected inside the main-side switching valve member 51, and the second through port 510c and the third through port 510d are cut off inside, that is, the fluid supply source 700 is connected to the driving chamber 411, and the driving chamber 411 is isolated from the driven chamber 421. The fluid output by the fluid supply source 700 is input into the driving chamber 411 through the main-side switching valve member 51. The driving chamber 411 shows a tendency to expand. Through the transmission of the transmission assembly 43, the stored water in the driven chamber 421 is discharged to the main body 30 of the sanitary equipment 100 through the drain pipe 60.

[0080] Figure 4The figure shows the state where the drainage just starts. Since there is sufficient fluid reserved in the driven cavity 421 and the drain pipe 60, the liquid levels in the driven cavity 421 and the drain pipe 60 are relatively high, causing the liquid level detection member 56 to float to a relatively high height. After the liquid level detection member 56 floats to the corresponding height, the top pin 559 in the secondary side switching valve member 55 is actuated through mechanical, electrical or other cooperative actions, so that the fourth port 550 and the fifth port 551 of the secondary side switching valve member 55 are isolated from each other, thereby stopping the fluid supply source 700 from replenishing fluid into the driven cavity 421. In other embodiments, it can also be that after the liquid level detection member 56 floats to the corresponding height at the transition 424, the secondary side switching valve member 55 recognizes the liquid level detection member 56 through photoelectric induction, electromagnetic induction or Hall effect, and then causes the driving component in the secondary side switching valve member 55 to move the top pin 559 in the secondary side switching valve member 55, so that the fourth port 550 and the fifth port 551 of the secondary side switching valve member 55 are isolated from each other.

[0081] Please refer to Figures 4 to 6 , which is the process from the start of draining the driven cavity 421 to the end of draining the driven cavity 421. As the fluid output from the fluid supply source 700 is injected into the driving cavity 411, the driven cavity 421 contracts through the transmission assembly 43. The fluid in the driven cavity 421 passes through the secondary side port 426 and then is discharged into the main body 30 through the drain pipe 60. When the inner wall of the driven cavity 421 contracts and deforms to abut against the contraction detection member 54 provided in the driven cavity 421, the contraction detection member 54 plays a transmission role between the inner wall of the driven cavity 421 and the switch control member 52 to release the buckling action on the switch control member 52 and reset it. The piston rod 510a in the primary side switching valve member 51 acts with the reset of the switch control member 52, moves close to the primary side guide hole 516 and blocks the primary side guide hole 516, isolating the primary side input cavity 511 from the primary side balance pipe 517. Since the side of the second elastic piece 514 facing away from the primary side output cavity 512 is subjected to the pressure of the fluid injected from the first port 510b, and the side of the second elastic piece 514 facing the primary side output cavity 512 lacks the support of the fluid pressure injected from the first port 510b due to the isolation of the primary side balance pipe 517, the second elastic piece 514 clings to the primary side inner guide port 513, preventing the fluid in the primary side input cavity 511 from entering the primary side output cavity 512. When there is no fluid in the primary side output cavity 512 that can exert pressure on the baffle 518, the baffle 518 leaves the third port 510d under the pressure of the elastic member 519 and abuts against one side of the primary side output cavity 512, releasing the blockage of the baffle 518 on the third port 510d.

[0082] Therefore, when the drainage of the driven chamber 421 ends, the flow channel structure inside the main-side switching valve member 51 is adjusted to internally cut off the first through port 510b and the second through port 510c, and the fluid injection from the fluid supply source 700 into the driving chamber 411 stops. Thus, the process of compressing and draining the driven chamber 421 ends. While the switch control member 52 resets, the flow channel structure inside the main-side switching valve member 51 is adjusted to internally connect the second through port 510c and the third through port 510d.

[0083] Please refer to Figure 6 . Before starting the water replenishing process for the driven chamber 421, since the piston rod 510a inside the main-side switching valve member 51 moves with the reset of the switch control member 52, the flow channel structure inside the main-side switching valve member 51 is adjusted to internally connect the second through port 510c and the third through port 510d and internally cut off the first through port 510b and the second through port 510c. That is, the main-side switching valve member 51 isolates the fluid supply source 700 from the driving chamber 411 and connects the driving chamber 411 and the driven chamber 421. The fluid flowing back from the driving chamber 411 is guided by the main-side switching valve member 51 to the driven chamber 421.

[0084] Please refer to again Figure 6 . After the fluid supply source 700 is isolated from the driving chamber 411 by the triggering of the contraction detection member 54, before the secondary-side switching valve member 55 is turned on when the liquid level detection member 56 floats downward, the fluid at the transition 424 flows back to the middle and lower part of the driven chamber 421 under the action of its own gravity. The original fluid in the driven chamber 421 also generates a thrust on the inner wall of the driven chamber 421 due to its own gravity, causing the driven chamber 421 to expand. The expansion of the driven chamber 421 causes the compression of the driving chamber 411 through the transmission assembly 43. After the fluid in the driving chamber 411 is squeezed, it flows through the main-side switching valve member 51 to the driven chamber 421.

[0085] Please refer to Figure 6 and Figure 7, before the secondary-side switching valve 55 is turned on, due to the active expansion of the driven chamber 421 under the action of the gravity or pressure of the fluid, and at the same time, the volume of the fluid supplemented from the driving chamber 411 to the driven chamber 421 is limited, resulting in a decrease in the liquid level height in the driven chamber 421. When the liquid level in the driven chamber 421 drops below a certain height value, the liquid level detection member 56 floats downward and away from the secondary-side switching valve 55, causing the top pin 559 in the secondary-side switching valve 55 to lose its transmission effect and reset. As a result, the fourth port 550 of the secondary-side switching valve 55 is connected to the fifth port 551. Thus, the fluid supply source 700 can supplement fluid into the driven chamber 421 through the secondary-side switching valve 55. The fluid supplemented into the driven chamber 421 increases the pressure borne by the inner wall of the driven chamber 421, promoting the expansion of the driven chamber 421 and the compression of the driving chamber 411. When the driving chamber 411 is compressed, it conducts out fluid, and this fluid is supplemented to the driven chamber 421 through the primary-side switching valve 51 and the transition 424.

[0086] Before the water replenishment process of the driven chamber 421 is nearly completed, with the fluid replenishment from the fluid supply source 700, the liquid levels in the driven chamber 421 and the transition 424 continue to rise. After the liquid level detection member 56 floats to the corresponding height, the top pin 559 in the secondary-side switching valve 55 is actuated through mechanical or electrical action, and the fourth port 550 of the secondary-side switching valve 55 is isolated from the fifth port 551, thereby stopping the fluid supply from the supply source to the driven chamber 421 and ending the water replenishment process of the driven chamber 421. The drainage device 20 re-enters the ready state.

[0087] In some other embodiments, the primary-side switching valve 51 is also connected between the driving chamber 411 and the driven chamber 421. After the compression of the driven chamber 421 is completed, the switch control member 52 is reset to the cut-off state under the action of an electric control signal, isolating the municipal water supply pipeline from the primary-side switching valve 51. The primary-side switching valve 51 loses the thrust of the tap water from the municipal water supply pipeline, causing the primary-side switching valve 51 of the tee structure to switch to a state where the driving chamber 411 is connected to the driven chamber 421 and the fluid supply source 700 is isolated from the driving chamber 411. The municipal water supply pipeline then injects tap water into the driven chamber 421. The space of the driven chamber 421 expands due to the injection of tap water. Under the action of the transmission assembly 43, the space of the driving chamber 411 is compressed, and the accumulated water in the driving chamber 411 is discharged into the driven chamber 421. In some other embodiments, the button or handle on the switch control member 52 can also be manually operated to reset the switch control member 52 to a state where the driving chamber 411 is cut off from the fluid supply source 700.

[0088] In some embodiments not shown in the figures, the drain pipe 60 and the transition 424 may also be arranged below the driven chamber 421, and the driven chamber 421 is respectively connected to the transition 424 from its bottom side. By providing valves such as pressure valves or solenoid valves at the drain pipe 60 and the transition 424, the fluid in the driven chamber 421 is prevented from being spontaneously discharged into the drain pipe 60 under the action of its own gravity. When the driving chamber 411 expands and compresses the driven chamber 421, the pressure in the driven chamber 421 increases and the pressure valve member opens, allowing the fluid in the driven chamber 421 to enter the drain pipe 60 and be discharged to the main body 30. In this embodiment, the driven chamber 421 can be connected to the drain pipe 60 from its bottom side.

[0089] The control assembly 50 includes a main side switching valve member 51, a switch control member 52 and a water tank 53. When the switch control member 52 is triggered, the fluid supply source 700 is connected to the driving chamber 411 through the main side switching valve member 51, and the main side switching valve member 51 cuts off the flow path between the driving chamber 411 and the driven chamber 421. If there is a flow path between the driving chamber 411 and other fluid storage containers, the flow path between the driving chamber 411 and other fluid storage containers will also be cut off.

[0090] In Figure 8A and Figure 8B In the illustrated embodiment, the main side switching valve member 51 is connected between the fluid supply source 700 and the driving chamber 411, and the main side switching valve member 51 is also connected between the driving chamber 411 and the water tank 53. The switch control member 52 is connected between the main side switching valve member 51 and the fluid supply source 700. The switch control member 52 is a valve structural member. More specifically, it is an electromagnetic control valve or a manual valve. The water tank 53 is connected with a liquid level control member 531, a liquid inlet valve 532, a liquid supplement pipe 533 and a one-way valve 534. The liquid inlet valve 532 is arranged between the water tank 53 and the fluid supply source 700. The liquid level control member 531 adjusts the on-off of the liquid inlet valve 532 to keep the fluid in the water tank 53 at a predetermined liquid level 535. The inner cavity of the water tank 53 is connected to the driven chamber 421 through the liquid supplement pipe 533. The one-way valve 534 is arranged on the liquid supplement pipe 533 to prevent the fluid in the driven chamber 421 from flowing back to the water tank 53, but allows the fluid in the water tank 53 to flow to the driven chamber 421 through the one-way valve 534. The placement height of the driven chamber 421 is lower than the predetermined liquid level 535.

[0091] In some other embodiments, after the drainage of the driven chamber 421 is completed, the control assembly 50 can also start the injection of the driven chamber 421 through the solenoid valve. At the same time, the control assembly 50 detects the flow rate input into the driven chamber 421 through the solenoid valve by the Hall sensing component, calculates with the flow rate feedback of the Hall sensing component, and makes the solenoid valve cut off after the fluid replenishment volume of the driven chamber 421 is satisfied. Thus, the water replenishment process of the driven chamber 421 can also be controlled.

[0092] In other embodiments, the regulating component 50 can also be any structural form that can control the opening and closing of the flow channel between the driving chamber 411 and the fluid supply source 700, adjust the fluid replenishment of the driven chamber 421, and guide the fluid of the driving chamber 411 to replenish the driven chamber 421 after completing or interrupting the compression of the driven chamber 421.

[0093] exist Figure 8A and Figure 8B In the illustrated embodiment, when the drainage device 20 receives a drainage command, the switch control component 52 is controlled to be turned on, and the tap water of the municipal water pipeline flows through the switch control component 52. The water pressure of the tap water acts on the main side switching valve component 51, so that the main side switching valve component 51 of the three-way structure is switched to open the flow channel between the municipal water pipeline and the drive chamber 411, and to cut off the flow channel between the drive chamber 411 and the water tank 53.

[0094] Before the liquid level in the driven chamber 421 and the drain pipe 60 rises to a level higher than the high-level section 62 of the drain pipe 60, the fluid is confined in the driven chamber 421 or the transition portion 424 to prevent the fluid in the driven chamber 421 from spontaneously flowing out around the drain pipe 60 due to its own gravity. When the driven chamber 421 is compressed, the liquid level in the driven chamber 421 and the drain pipe 60 rises and passes over the high-level section 62 of the drain pipe 60, thereby flowing out into the body 30.

[0095] After the water in the driven chamber 421 is fully discharged, the switch control member 52 is controlled to be cut off, and the driving chamber 411 loses the driving external force provided by the fluid and completes the compression of the driven chamber 421. Before the water in the driven chamber 421 is fully discharged, if the switch control member 52 is controlled to be cut off or the fluid supply source 700 stops outputting itself, the driving chamber 411 loses the driving external force provided by the fluid and stops expanding, and the compression of the driven chamber 421 is interrupted. Specifically, the cessation of output of the fluid supply source 700 may be due to the water outage of the municipal tap water pipeline or the valve of the fluid supply source 700 itself causing the fluid output of the fluid supply source 700 to stop.

[0096] See also Figure 8A and Figure 8B After the compression of the driven chamber 421 is completed or interrupted, the gravity of the accumulated water in the driven chamber 421 generates pressure on the inner wall of the driven chamber 421. When the driven chamber 421 expands and deforms under the pressure, the liquid level in the driven chamber 421 or the drain pipe 60 drops. Since the placement height of the driven chamber 421 is lower than the predetermined liquid level 535 and the water tank 53 is connected to the driven chamber 421 through the liquid replenishing tube 533, when the liquid level in the driven chamber 421 or the drain pipe 60 is lower than the predetermined liquid level 535, under the principle of the communicating vessel, the tap water in the water tank 53 is spontaneously replenished to the driven chamber 421 through the liquid replenishing tube 533 until the liquid level in the driven chamber 421 or the drain pipe 60 reaches the predetermined liquid level 535.

[0097] The liquid level control member 531 can provide feedback through various forms of the liquid inlet valve 532 to keep the liquid level in the water tank 53 at a predetermined liquid level 535.

[0098] In Figure 8A and Figure 8B In the illustrated embodiment, a liquid inlet valve 532 is connected between the fluid supply source 700 and the water tank 53. The liquid level control member 531 floats in the water tank 53 and switches the on / off state of the liquid inlet valve 532 through mechanical transmission according to the floating height. More specifically, it is through lever transmission. When the liquid level control member 531 floats to be higher than or equal to the predetermined liquid level 535, the liquid level control member 531 makes the liquid inlet valve 532 enter the off state through lever transmission to prevent tap water from entering the water tank 53. When the liquid level control member 531 floats to be lower than the predetermined liquid level 535, the liquid level control member 531 makes the liquid inlet valve 532 enter the on state through lever transmission to allow tap water to supplement into the water tank 53 until the liquid level control member 531 floats to be higher than or equal to the predetermined liquid level 535 to make the liquid inlet valve 532 shut off again.

[0099] In some embodiments not shown in the figure, the up and down floating change of the liquid level control member 531 can also cause an adjustment of the on / off of the liquid inlet valve 532 through the transmission of piezoresistive sensing, Hall effect or other sensing methods. Specifically, the liquid level control member 531 floats on the liquid surface in the water tank 53. When the liquid level in the water tank 53 is lower than the predetermined liquid level 535, the liquid level control member 531 floats downward and opens the liquid inlet valve 532 through photoelectric induction or other cooperation methods, and the fluid supply source 700 supplements fluid into the water tank 53 through the liquid inlet valve 532. When the liquid level in the water tank 53 is higher than the predetermined liquid level 535, the liquid level control member 531 closes the liquid inlet valve 532 through photoelectric induction, piezoresistive sensing or other cooperation methods to stop the fluid from being supplemented into the water tank 53.

[0100] In other embodiments, the liquid level control member 531 is not limited to being a floating component, and any other cooperation method that can keep the fluid in the water tank 53 at the predetermined liquid level 535 can be adopted between the liquid level control member 531 and the liquid inlet valve 532.

[0101] Please refer to Figure 8A and Figure 8B , since the main side switching valve member 51 is connected between the drive chamber 411 and the water tank 53, when the drainage instruction is withdrawn after a certain period of time, the switch control member 52 connected between the main side switching valve member 51 and the fluid supply source 700 is controlled to cut off, and the main side switching valve member 51 loses the pressure action of the fluid, so that the main side switching valve member 51 of the three-way structure switches to a state where the drive chamber 411 is communicated with the water tank 53 and the fluid supply source 700 is isolated from the drive chamber 411, so as to guide and supplement the accumulated water in the drive chamber 411 into the water tank 53.

[0102] The fluid in the water tank 53 is automatically replenished into the driven cavity 421 due to the height difference, and the driven cavity 421 expands due to the replenished fluid. The driven cavity 421 causes the driving cavity 411 to be compressed through the transmission component 43, and the fluid discharged due to the compression of the driving cavity 411 flows to the water tank 53 through the main-side switching valve member 51. For specific reference, see Figure 8A and Figure 8B , when the driven cavity 421 expands due to replenishing tap water from the water tank 53, under the transmission of the transmission component 43, the driving cavity 411 discharges fluid to the water tank 53 due to being compressed. Specifically, the accumulated water in the driving cavity 411 sequentially flows through the main-side port 413 and the main-side switching valve member 51 to the water tank 53 to supplement the stored water in the water tank 53. Since the tap water in the water tank 53 can supplement the driven cavity 421, the accumulated water in the driving cavity 411 can be indirectly supplemented to the driven cavity 421.

[0103] Please refer to Figure 8A and Figure 8B , the placement height of a part of the drain pipe 60 is higher than the predetermined liquid level 535. In other words, the setting position of the highest part of the drain pipe 60 is higher than the setting position of the main structure of the water tank 53. Different from the traditional water tank 53 that must be set at a higher position to generate potential energy for draining water to the drain pipe 60, the setting position of this water tank 53 can be more flexible and can reduce the overall volume of the drainage device 20 or the sanitary ware 100, thereby improving the external layout. Further, to prevent the accumulated water discharged from the drain pipe 60 from continuously sucking tap water into the drain pipe 60 from the water tank 53, the liquid replenishing pipe 533, and the driven cavity 421 under negative pressure, the drainage device 20 further includes a siphon elimination valve 61 connected to the drain pipe 60, and the siphon elimination valve 61 is connected to the part of the drain pipe 60 higher than the predetermined liquid level 535. When the driven cavity 421 is compressed and discharges stored water through the drain pipe 60, the siphon elimination valve 61 isolates the internal and external air pressure environments of the drain pipe 60 under the high pressure of the stored water to prevent the stored water from leaking through the siphon elimination valve 61. After completing or interrupting the compression of the driven cavity 421, due to the loss of the force for compressing the driven cavity 421, the stored water being discharged from the drain pipe 60 forms a negative pressure inside the drain pipe 60. The siphon elimination valve 61 connects the internal and external air pressure environments of the drain pipe 60 under the action of negative pressure, and the air flow outside the drain pipe 60 enters the inside of the drain pipe 60 to eliminate the negative pressure in the drain pipe 60 and interrupt the water flow in the drain pipe 60. Limited by the one-way valve 534, during drainage, the fluid in the driven cavity 421 cannot flow back to the water tank 53.

[0104] As Figure 9 shown, the present invention also provides a method for flushing a sanitary ware, including the following steps:

[0105] S10: Set a driving chamber 411 and a driven chamber 421 with variable space size for accommodating fluid, wherein the variation amount of the expansion space of the driving chamber 411 is less than the variation amount of the compression space of the driven chamber 421.

[0106] S20: If a drainage instruction is received, let external fluid enter the driving chamber 411. The driving chamber 411 expands and transmits a driving external force, causing the driven chamber 421 to be compressed and discharging the fluid accommodated in the driven chamber 421 until the compression process of the driven chamber 421 is completed.

[0107] S30: If a water replenishment instruction is received, let external fluid enter the driven chamber 421 to expand the driven chamber 421 while compressing the driving chamber 411, and transfer the fluid in the driving chamber 411 to the driven chamber 421 until the water replenishment process of the driven chamber 421 is completed.

[0108] In Figure 8A and Figure 8B In the illustrated embodiment, the drainage instruction is an electric control signal acting on the switch control member 52, and the switch control member 52 remains conducting when continuously receiving the drainage instruction. When external fluid is injected into the driving chamber 411, the flow path for the driving chamber 411 to discharge fluid to the water tank 53 is cut off. When the drainage instruction is received, the switch control member 52 conducts, causing the fluid supply source 700 to inject fluid into the driving chamber 411, expanding the driving chamber 411 while compressing the driven chamber 421, and squeezing out the fluid in the driven chamber 421. The drainage instruction is removed from the switch control member 52 after a predetermined time, causing the switch control member 52 to return to the cut-off state, cutting off the flow path for external fluid to be injected into the driving chamber 411, and the driving chamber 411 stops expanding to complete the compression process of the driven chamber 421.

[0109] In some other embodiments, the drainage instruction is removed after the driven chamber 421 is compressed to a certain extent, and the switch control member 52 is triggered to cut off the flow path for external fluid to be injected into the driving chamber 411, and the driving chamber 411 stops expanding to complete the compression process of the driven chamber 421. Alternatively, when a water replenishment instruction is received, the drainage instruction is removed, and the switch control member 52 cuts off the flow path for external fluid to be injected into the driving chamber 411 after the drainage instruction is removed.

[0110] Since the water tank 53 serves as a temporary storage container for external fluid and is connected to the driven chamber 421, when the liquid level in the driven chamber 421 is lower than the predetermined liquid level 535, a water replenishment command is formed due to the effect of the liquid level difference. The one-way valve 534 between the water tank 53 and the driven chamber 421 is opened under the action of the height difference, allowing the external fluid temporarily stored in the water tank 53 to be replenished to the driven chamber 421 through the one-way valve 534. By replenishing the fluid to the driven chamber 421, when the liquid level in the driven chamber 421 is greater than or equal to the predetermined liquid level 535, the liquid level difference disappears, the one-way valve 534 returns to the cut-off state, and the flow path from the water tank 53 to the driven chamber 421 is cut off. Therefore, the driven chamber 421 stops expanding and the water replenishment process of the driven chamber 421 is completed.

[0111] In Figures 2 to 6 the illustrated embodiment, the drainage command is an operation of the switch control member 52 on the main side switching valve member 51. The switch control member 52 is triggered to adjust the flow path structure inside the main side switching valve member 51, so that the first port 510b and the second port 510c are internally connected and the second port 510c and the third port 510d are internally cut off, that is, the fluid supply source 700 is connected to the driving chamber 411 and the driving chamber 411 is isolated from the driven chamber 421. Therefore, the flow path for the driving chamber 411 to discharge fluid to the driven chamber 421 is cut off.

[0112] In Figures 2 to 6 the illustrated embodiment, the water replenishment command is an operation of the liquid level detection member 56 on the secondary side switching valve member 55. Since when the injection of fluid into the driving chamber 411 stops, the gravity of the remaining fluid in the driven chamber 421 causes the driven chamber 421 to expand. The liquid level in the driven chamber 421 drops due to the expansion, and the liquid level detection member 56 floats downward, causing the state of the secondary side switching valve member 55 to be adjusted, that is, a water replenishment command is generated for the secondary side switching valve member 55, and the two ports of the secondary side switching valve member 55 are connected, opening the flow path for the external fluid to be injected into the driven chamber 421, thereby replenishing the fluid to the driven chamber 421. Through the replenishment of the external fluid to the driven chamber 421, when the liquid level detection member 56 rises above the predetermined height, the liquid level detection member 56 reacts on the secondary side switching valve member 55, that is, the water replenishment command for the secondary side switching valve member 55 is removed, causing the two ports of the secondary side switching valve member 55 to be cut off, thereby stopping the water replenishment of the driven chamber 421 and the expansion of the driven chamber 421.

[0113] Since the contraction detection member 54 acts on the switch control member 52, the switch control member 52 is reset. Therefore, the water replenishment command is generated after the driven chamber 421 contracts until the driven plate 427 abuts against the contraction detection member 54.

[0114] In some other embodiments, it can also be that before the compression process of the driven cavity 421 is completed, if a water replenishment instruction is received, the drainage instruction is withdrawn, so that the flow path for injecting external fluid into the driving cavity 411 is cut off, and the driving cavity 411 stops expanding and the compression process of the driven cavity 421 is completed. The water replenishment instruction is generated when the supply of external fluid is interrupted, so that the flow path for injecting external fluid into the driven cavity 421 is opened and the flow path for injecting external fluid into the driving cavity 411 is cut off.

[0115] In some other embodiments, it can also be that the water replenishment instruction is withdrawn after a predetermined time duration, so that the flow path for injecting external fluid into the driven cavity 421 is cut off, and the driven cavity 421 stops expanding and the water replenishment process of the driven cavity 421 is completed. In some other embodiments, it can also be that the water replenishment instruction is withdrawn when the driven cavity 421 expands to a predetermined degree, so that the flow path for injecting external fluid into the driven cavity 421 is cut off, and the driven cavity 421 stops expanding and the water replenishment process of the driven cavity 421 is completed. In some other embodiments, before the expansion process of the driven cavity 421 is completed, if a drainage instruction is received, the water replenishment instruction is withdrawn, so that the flow path for injecting external fluid into the driven cavity 421 is cut off, and the driven cavity 421 stops expanding and the water replenishment process of the driven cavity 421 is completed.

[0116] In some embodiments, at least part of the inner wall of the driving cavity 411 is flexible. The driving cavity 411 contracts or expands the space through the deformation of the flexible inner wall, which facilitates the overall integrity of the inner wall surface of the driving cavity 411 and is beneficial to enhancing the sealing performance of the driving cavity 411. In some other embodiments, at least part of the inner wall of the driven cavity 421 is flexible. The driven cavity 421 contracts or expands the space through the deformation of the flexible inner wall, which facilitates the overall integrity of the inner wall surface of the driven cavity 421 and is beneficial to enhancing the sealing performance of the driven cavity 421.

[0117] Please refer to Figure 1 , the fluid discharged to the body 30 of the sanitary equipment 100 can uniformly flush the inner wall of the body 30 through the washing water path 32, or can enter the siphon 34 through the injection water path 33, so that the dirt at the bottom of the liquid pool 31 is sucked and discharged.

[0118] Please refer to Figure 2 and Figure 4, the driving cavity 411 forms the compression of the space through the converging deformation of the inner wall surface. In one implementation, the driving component 41 includes a main-side housing 412, a driving plate 414, and a main-side flexible member 415. The driving plate 414 movably penetrates the inner cavity of the main-side housing 412, and the main-side flexible member 415 is connected between the main-side housing 412 and the driving plate 414. The moving direction of the driving plate 414 relative to the main-side housing 412 is the main-side preset path F1, which is also the expansion direction or the contraction direction of the driving cavity 411. Along the expansion direction of the driving cavity 411, the driving plate 414 and the main-side housing 412 are hermetically connected to different parts of the main-side flexible member 415 to cooperate to form the driving cavity 411. The driving plate 414 is connected to the transmission component 43, and during the movement of the driving plate 414, the transmission component 43 moves synchronously. Specifically, the main-side through port 413 is provided on the main-side housing 412.

[0119] The main-side flexible member 415 is in a cylindrical shape, with one end connected to the driving plate 414 or fixedly embedded in the driving plate 414, and the other end connected to the main-side housing 412 or fixedly embedded in the main-side housing 412. In one embodiment, there is a gap between the edge of the driving plate 414 and the inner wall of the main-side housing 412 to facilitate the movement of the driving plate 414 within the main-side housing 412. Further, the main-side flexible member 415 is in a tapered shape with a large end and a small end, the small end is connected to the driving plate 414, and the large end is connected to the main-side housing 412. Further, the driving component 41 further includes a main-side extension block 418 connected to the main-side housing 412. The main-side extension block 418 is close to the opening side of the main-side housing 412 to limit the driving plate 414 that exits from the inner cavity of the main-side housing 412. Specifically, the main-side extension block 418 is distributed along the opening edge of the main-side housing 412 to limit the movement range of the driving plate 414 in the plane perpendicular to the main-side preset path F1.

[0120] In Figure 2 and Figure 4In the illustrated embodiment, when the active plate 414 moves along the main side preset path F1 to go deep into the inner cavity of the main side shell 412, the space of the drive cavity 411 shrinks. When the drive cavity 411 is fully shrunk, the depth of the active plate 414 embedded in the main side shell 412 is large, and the surface of the main side flexible member 415 forms a folded relationship with the inner wall surface of the main side shell 412, so that the side surface 4151 of the main side flexible member 415 is opposite to the inner wall surface of the main side shell 412, so that the space of the drive cavity 411 is smaller than the inner cavity space of the main side shell 412. When the fluid is injected, the active plate 414 moves along the main side preset path F1 to exit the inner cavity of the main side shell 412, and the space of the drive cavity 411 expands. When the driving cavity 411 is fully expanded, the active plate 414 leaves the inner cavity range of the main side shell 412, and the main side flexible member 415 turns over to the outside of the main side shell 412, so that the space of the driving cavity 411 is equal to the sum of the space surrounded by the main side flexible member 415 after turning outward and the inner cavity space of the main side shell 412. Since the space of the driving cavity 411 is limited by the inner wall of the main side shell 412 in the radial direction of the active track of the active plate 414, the space expansion of the driving cavity 411 is mainly caused by the movement of the active plate 414 relative to the main side shell 412, so when the driving cavity 411 expands due to the addition of fluid, the driving cavity 411 mainly expands along the main side preset path F1.

[0121] exist Figure 2 and Figure 6 In the illustrated embodiment, the two conical surfaces of the main side flexible member 415 are interchanged in the inner and outer directions during the flipping process. Specifically, when the driving cavity 411 is fully contracted, one conical surface 4151 of the main side flexible member 415 faces the inner wall of the main side shell 412 and faces away from the active plate 414, and the other conical surface 4152 faces the active plate 414. Since one conical surface 4151 of the main side flexible member 415 and the inner wall of the main side shell 412 serve together as the inner wall surface of the driving cavity 411, when one conical surface 4151 of the main side flexible member 415 and the inner wall of the main side shell 412 are opposite to each other, the inner wall surface of the driving cavity 411 is in a gathered state. When the driving cavity 411 is fully expanded, the main side flexible member 415 is turned over, and the conical surface 4151 of the main side flexible member 415 originally facing away from the active plate 414 changes to facing the active plate 414, while the conical surface 4152 of the main side flexible member 415 originally facing the active plate 414 changes to facing away from the active plate 414. After the large end of the main side flexible member 415 is connected to the main side housing 412, the turning activity direction of the small end of the main side flexible member 415 is parallel to the main side preset path F1, so that the active plate 414 can be guided to move relative to the main side housing 412 along the main side preset path F1.

[0122] When the driving cavity 411 contracts, the main-side flexible member 415 and the driving plate 414 need to be received in the main-side housing 412. Therefore, the cross-sectional area of the inner cavity of the main-side housing 412 in the plane perpendicular to the main-side preset path F1 is the maximum cross-sectional area of the driving cavity 411 perpendicular to the main-side preset path F1.

[0123] Please refer to again Figure 8A and Figure 8B , the driven assembly 42 includes a secondary-side flexible bag 422 and a secondary-side limiting plate 423. The inner cavity of the secondary-side flexible bag 422 is used as the driven cavity 421. The secondary-side flexible bag 422 is received in the cavity formed by the secondary-side limiting plate 423 to define the maximum expansion range of the secondary-side flexible bag 422 in the plane perpendicular to the secondary-side preset path F2, so that when the secondary-side flexible bag 422 is compressed, its space mainly changes along the secondary-side preset path F2. In Figure 2 In the illustrated embodiment, a single cylindrical secondary-side limiting plate 423 forms a cavity for receiving the secondary-side flexible bag 422. In other embodiments, the cavity can also be formed by a plurality of secondary-side limiting plates 423 distributed around in the plane perpendicular to the secondary-side preset path F2. In the present embodiment, due to the limitation of the secondary-side limiting plate 423, the cross-sectional area of the cavity formed by the secondary-side limiting plate 423 in the plane perpendicular to the secondary-side preset path F2 is the maximum cross-sectional area of the driven cavity 421 perpendicular to the secondary-side preset path F2.

[0124] The injection of the fluid causes the driving plate 414 to move away from the main-side housing 412, and the driving plate 414 gradually withdraws from the main-side housing 412. During the movement of the driving plate 414, the driving plate 414 acts on the secondary-side flexible bag 422 through the transmission assembly 43, squeezing the secondary-side flexible bag 422, so that the fluid in the secondary-side flexible bag 422 is compressed and discharged.

[0125] In 8A and Figure 8B In the illustrated embodiment, it can also be that after the secondary-side push plate 432 moves to the corresponding position, it abuts against the contraction detection member 54 close to the driven cavity 421 to release the buckling action on the switch control member 52 and reset it, and the drainage instruction is withdrawn from the main-side switching valve member 51.

[0126] In 8A and Figure 8B In the illustrated embodiment, the transmission assembly 43 includes a transmission member 433, a secondary-side support plate 431, and a secondary-side push plate 432 connecting the transmission member 433. The transmission member 433 connects the secondary-side push plate 432 and the driving assembly 41, more specifically, connects the driving plate 414 in the driving assembly 41. Along the secondary-side preset path F2, the secondary-side flexible bag 422 is located between the secondary-side push plate 432 and the secondary-side support plate 431, and the secondary-side push plate 432 is used to abut against the secondary-side flexible bag 422. In Figure 2In the illustrated embodiment, the secondary push plate 432 movably passes through the cavity formed by the extension of the secondary limiting plate 423, and the secondary limiting plate 423 is fixedly connected to the secondary support plate 431. When the driving cavity 411 expands under the action of an external driving force, the driving cavity 411 acts on the secondary push plate 432 through the transmission member 433, causing the secondary push plate 432 to move closer to the secondary support plate 431 to compress the secondary flexible bag 422.

[0127] Further, the shape and size of the cross-section of the cavity formed by the secondary limiting plate 423 on the perpendicular secondary preset path F2 respectively match the shape and size of the secondary push plate 432, so that there is a large contact area between the secondary push plate 432 and the secondary flexible bag 422. A gap is left between the inner wall of the secondary limiting plate 423 facing the secondary push plate 432 and the secondary push plate 432, so that the secondary push plate 432 can move flexibly relative to the secondary limiting plate 423 or the secondary support plate 431. A secondary through port 426 is connected to the secondary support plate 431. The opening of the secondary flexible bag 422 communicates with the secondary through port 426 to guide the fluid discharged from the secondary flexible bag 422 through the secondary support plate 431. Further, the secondary support plate 431 and the secondary limiting plate 423 are integrally connected, or the secondary support plate 431, the secondary limiting plate 423 and the main side housing 412 are integrally connected.

[0128] In Figure 2 and Figure 6 In the illustrated embodiment, when the driving cavity 411 is in a contracted state, the active plate 414 is at a deeper position in the inner cavity of the main side housing 412, and a conical surface 4151 of the main side flexible member 415 faces the inner wall of the main side housing 412. The fluid supply source 700 injects fluid into the driving cavity 411 through the main side through port 413, and the pressure of the fluid pushes the active plate 414 to exit the inner cavity of the main side housing 412 along the main side preset path F1. When the active plate 414 moves relative to the main side housing 412, the main side flexible member 415 deforms to adapt to the position change of the active plate 414.

[0129] When the driving cavity 411 expands under the action of an external driving force, the active plate 414 acts on the secondary side push plate 432 through the transmission member 433, causing the secondary side push plate 432 to move closer to the secondary side support plate 431, so as to compress the secondary side flexible bag 422 and make it smaller, and then discharge the fluid in the secondary side flexible bag 422. When the secondary side push plate 432 starts to press the secondary side flexible bag 422, since the shape of the secondary side flexible bag 422 is not stable and the opening diameter of the secondary side flexible bag 422 is limited, the fluid in the secondary side flexible bag 422 generates a lateral flow trend perpendicular to the secondary side preset path F2. The outer wall of the secondary side flexible bag 422 facing the secondary side limiting plate 423 expands perpendicular to the secondary side preset path F2 due to the lateral flow trend until the outer wall of the secondary side flexible bag 422 facing the secondary side limiting plate 423 fits with the secondary side limiting plate 423. Thereafter, the secondary side push plate 432 further pushes the secondary side flexible bag 422. Since it is restricted by the secondary side limiting plate 423, the cross-sectional shape of the secondary side flexible bag 422 in the direction perpendicular to the secondary side preset path F2 remains basically unchanged and mainly contracts along the secondary side preset path F2, so that the size of the driven cavity 421 in the secondary side preset path F2 decreases.

[0130] In Figure 2 the illustrated embodiment, the primary side preset path F1 and the secondary side preset path F2 are arranged in parallel. Since the transmission member 433 is connected between the active plate 414 and the secondary side push plate 432, when the driving cavity 411 expands under the action of an external driving force, the moving distance of the secondary side push plate 432 along the secondary side preset path F2 is equal to the moving distance of the active plate 414 along the primary side preset path F1. The space contraction amount of the inner cavity of the secondary side flexible bag 422 is equal to the volume of the fluid discharged from the secondary side flexible bag 422. The expanded space of the driving cavity 411 is equal to the volume of the fluid injected by the external fluid supply source 700. Since the cross-sectional area of the chamber formed by the secondary side limiting plate 423 in the plane perpendicular to the secondary side preset path F2 is larger than the cross-sectional area of the inner cavity of the primary side housing 412 in the plane perpendicular to the primary side preset path F1, when the moving distance of the secondary side push plate 432 along the secondary side preset path F2 is equal to the moving distance of the active plate 414 along the primary side preset path F1, the space contraction amount of the inner cavity of the secondary side flexible bag 422 is larger than the space increase amount of the driving cavity 411. Therefore, during the process of the driving cavity 411 expanding under the action of an external driving force, the volume of the fluid discharged from the secondary side flexible bag 422 is larger than the volume of the fluid injected into the driving cavity 411, so that a larger volume of fluid is discharged into the body 30 of the sanitary ware device 100, ensuring the washing or sewage discharge effect of the sanitary ware device 100.

[0131] In Figure 8A and Figure 8BIn the illustrated embodiment, when the secondary flexible bag 422 expands due to replenishing tap water from the water tank 53, it exerts a pushing force on the secondary push plate 432, causing the secondary push plate 432 to move away from the secondary support plate 431. The secondary push plate 432 acts on the active plate 414 through the transmission member 433, causing the active plate 414 to move closer to the primary housing 412, and the drive chamber 411 discharges the fluid into the water tank 53 due to being compressed.

[0132] In some embodiments, when replenishing and injecting tap water, the stretching direction of the outer wall of the secondary flexible bag 422 is restricted by the secondary limiting plate 423, so that when the secondary flexible bag 422 expands, it moves the secondary push plate 432 in a direction away from the secondary support plate 431. The secondary push plate 432 acts on the active plate 414 through the transmission member 433, causing the active plate 414 to move closer to the primary housing 412, and the primary flexible member 415 flips as the active plate 414 moves.

[0133] In some embodiments not shown in the figure, it can also be that the secondary limiting plate 423 is fixedly connected to the secondary push plate 432, the transmission member 433 is connected between the active plate 414 and the secondary push plate 432, the secondary limiting plate 423 moves relative to the secondary support plate 431 along with the secondary push plate 432, and the secondary support plate 431 movably penetrates through the cavity surrounded by the secondary limiting plate 423. During the movement of the secondary push plate 432, the secondary push plate 432 moves relative to the secondary support plate 431, and within the space defined by the secondary limiting plate 423 and the secondary support plate 431, the secondary flexible bag 422 is compressed and deformed. In other embodiments, it can be that a plurality of secondary limiting plates 423 jointly form a cavity for accommodating the secondary flexible bag 422, and a part of the plurality of secondary limiting plates 423 is connected to the secondary push plate 432, while the other part is connected to the secondary support plate 431.

[0134] In some embodiments not shown in the figure, other transmission components can also be used to adjust the angle between the primary preset path F1 and the secondary preset path F2, and the primary preset path F1 and the secondary preset path F2 are not limited to a parallel relationship.

[0135] In Figure 2 and Figure 6In the illustrated embodiment, the driven assembly 42 includes a secondary housing 425, a driven plate 427, and a secondary flexible member 428. The driven plate 427 movably passes through the inner cavity of the secondary housing 425. The secondary flexible member 428 is connected between the secondary housing 425 and the driven plate 427. The moving direction of the driven plate 427 relative to the secondary housing 425 is a secondary preset path F2. Along the expanding direction of the driven cavity 421, that is, the secondary preset path F2, the driven plate 427 and the secondary housing 425 are sealingly connected to different parts of the secondary flexible member 428 to cooperate to form the driven cavity 421. The driven plate 427 is connected to the transmission assembly 43, and during the movement of the driven plate 427, the transmission assembly 43 moves synchronously. A secondary through port 426 communicating with the driven cavity 421 is provided on the secondary housing 425, and fluid flows into or out of the driven cavity 421 through the secondary through port 426. The secondary flexible member 428 is cylindrical, one end is connected to the driven plate 427 or fixedly embedded in the driven plate 427, and the other end is connected to the secondary housing 425 or fixedly embedded in the secondary housing 425. In one embodiment, a gap is provided between the edge of the driven plate 427 and the inner wall of the secondary housing 425 to facilitate the movement of the driven plate 427 within the secondary housing 425. Further, the secondary flexible member 428 is tapered and has a large end and a small end. The small end is connected to the driven plate 427, and the large end is connected to the secondary housing 425. Further, the driven assembly 42 further includes a secondary extension block 429 connected to the secondary housing 425. The secondary extension block 429 is close to the opening side of the secondary housing 425 to limit the driven plate 427 exiting from the inner cavity of the secondary housing 425.

[0136] In Figure 2 and Figure 6In the illustrated embodiment, when the driven plate 427 moves along the secondary-side preset path F2 in the direction of deeper into the inner cavity of the secondary-side housing 425, the space of the driven cavity 421 shrinks. When the driven cavity 421 is in a fully contracted state, the depth of the driven plate 427 embedded in the secondary-side housing 425 is relatively large, and the surface of the secondary-side flexible member 428 forms a folded relationship with the inner wall surface of the secondary-side housing 425, so that one side surface of the secondary-side flexible member 428 faces the inner wall surface of the secondary-side housing 425, making the space of the driven cavity 421 smaller than the inner cavity space of the secondary-side housing 425. When the driven plate 427 moves along the secondary-side preset path F2 in the direction of withdrawing from the inner cavity of the secondary-side housing 425, the space of the driven cavity 421 expands. When the driven cavity 421 is in a fully expanded state with the fluid stored, the driven plate 427 leaves the inner cavity range of the secondary-side housing 425, and the secondary-side flexible member 428 flips outside the secondary-side housing 425, making the space of the driven cavity 421 equal to the sum of the space surrounded by the outward flip of the secondary-side flexible member 428 and the inner cavity space of the secondary-side housing 425. Since the space of the driven cavity 421 is restricted by the inner wall of the secondary-side housing 425 in the radial direction of the movement track of the driven plate 427, the expansion of the space of the driven cavity 421 is mainly caused by the movement of the driven plate 427 relative to the secondary-side housing 425. Therefore, when the driven cavity 421 expands due to the injection of fluid, the driven cavity 421 mainly expands along the secondary-side preset path F2.

[0137] Since the secondary-side flexible member 428 and the driven plate 427 need to be accommodated in the secondary-side housing 425 when the driven cavity 421 contracts, the cross-sectional area of the inner cavity of the secondary-side housing 425 in the direction perpendicular to the secondary-side preset path F2 is the maximum cross-sectional area of the driven cavity 421 perpendicular to the secondary-side preset path F2.

[0138] In Figure 2 and Figure 6 In the illustrated embodiment, the transmission assembly 43 includes a transmission member 433, and the transmission member 433 is connected between the driving plate 414 and the driven plate 427. When the driving cavity 411 expands and the driving plate 414 withdraws from the primary-side housing 412, the driving plate 414 pushes the driven plate 427 deeper into the inner cavity of the secondary-side housing 425 through the transmission member 433, and thus the space of the driven cavity 421 shrinks. Specifically, the secondary-side extension blocks 429 are distributed along the opening edge of the secondary-side housing 425 to limit the movement range of the driven plate 427 in the plane perpendicular to the secondary-side preset path F2. The secondary-side extension blocks 429 are fixedly connected to the primary-side extension blocks 418, so that the primary-side housing 412 and the secondary-side housing 425 are relatively fixed.

[0139] The transmission assembly 43 is not limited to a single or a combination of multiple ones among the primary-side push plate 430, the secondary-side support plate 431, the secondary-side push plate 432, the transmission member 433 or the primary-side support plate 434. The transmission member 433 is not limited to a single component, and the transmission assembly 43 can be any structure that causes the driven cavity 421 to be compressed as the driving cavity 411 expands.

[0140] In Figures 2 to 6 the embodiment shown, at the end of the drainage process, since the driven chamber 421 contracts to a predetermined degree, the driven plate 427 extends deep into the secondary housing 425 and abuts against the contraction detection member 54. Through the transmission of the contraction detection member 54, the switch control member 52 is reset, the drainage instruction is removed from the main side switching valve member 51, and the flow path structure in the main side switching valve member 51 is adjusted, so that the first port 510b and the second port 510c are internally cut off and the second port 510c and the third port 510d are internally conducted, that is, the fluid supply source 700 is isolated from the driving chamber 411, and the driving chamber 411 is communicated with the driven chamber 421. Since the external fluid stops injecting into the driving chamber 411, the driving chamber 411 stops expanding and the compression of the driven chamber 421 is completed.

[0141] It can be obtained from the above embodiment that at least part of the inner wall of the driving chamber 411 is flexible, and at least part of the inner wall of the driven chamber 421 is flexible. At least one of the driving chamber 411 and the driven chamber 421 forms the compression of the space through the converging deformation of the inner wall surface.

[0142] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0143] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A drainage device, characterized in that, Comprising: A driving component, the driving component includes a main-side housing, a driving plate and a main-side flexible member. The driving plate movably penetrates the inner cavity of the main-side housing. The main-side flexible member is connected between the main-side housing and the driving plate. The driving plate and the main-side housing are hermetically connected to the main-side flexible member to cooperate to form a driving cavity with a variable space size for accommodating fluid. The moving direction of the driving plate relative to the main-side housing is the main-side preset path; A driven component, the driven component includes a secondary-side flexible bag and a secondary-side limiting plate. The inner cavity of the secondary-side flexible bag serves as a driven cavity with a variable space size for accommodating fluid. When the secondary-side flexible bag is compressed, its space changes along the secondary-side preset path. The secondary-side flexible bag is accommodated in the chamber formed by the secondary-side limiting plate to limit the maximum expansion range of the secondary-side flexible bag in the plane perpendicular to the secondary-side preset path. The cross-sectional area of the chamber formed by the secondary-side limiting plate in the plane perpendicular to the secondary-side preset path is larger than the cross-sectional area of the inner cavity of the main-side housing in the plane perpendicular to the main-side preset path; A transmission component, arranged between the driving component and the driven component. When the driving cavity expands due to the driving external force provided by the fluid supply source, the transmission component transmits the driving external force to cause the driven cavity to be compressed and become smaller to discharge fluid. The transmission component includes a transmission member, a secondary-side support plate and a secondary-side push plate. The transmission member connects the secondary-side push plate and the driving plate. Along the secondary-side preset path, the secondary-side flexible bag is located between the secondary-side push plate and the secondary-side support plate. The secondary-side push plate is used to abut against the secondary-side flexible bag. When the moving distance of the secondary-side push plate along the secondary-side preset path is equal to the moving distance of the driving plate along the main-side preset path, the change amount of the compressed space of the driven cavity is greater than the change amount of the expanded space of the driving cavity; A regulation component, the regulation component is used to control the on-off of the flow channel between the driving cavity and the fluid supply source; the regulation component is also used to regulate the fluid supplement of the driven cavity; after the compression of the driven cavity is completed or interrupted, the regulation component is also used to guide and supplement the fluid in the driving cavity to the driven cavity.

2. The drainage device according to claim 1, characterized in that The regulation component further includes a main-side switching valve member and a switch control member; the main-side switching valve member is connected between the fluid supply source and the driving cavity. When the switch control member is triggered, the fluid supply source and the driving cavity are communicated through the main-side switching valve member.

3. The drainage device according to claim 2, characterized in that, The main-side switching valve member is also connected between the driving cavity and the driven cavity; after the compression of the driven cavity is completed, the driving cavity and the driven cavity are communicated through the main-side switching valve member to guide and supplement the fluid in the driving cavity to the driven cavity.

4. The drainage device according to claim 2, characterized in that, The regulation component further includes a contraction detection member connected to the driven component, wherein, The contraction detection member is used to detect the compression degree of the driven cavity and reset the switch control member to disconnect the driving cavity from the fluid supply source; or, The contraction detection member is used to detect the spatial contraction speed of the driven cavity and reset the switch control member to disconnect the driving cavity from the fluid supply source.

5. The drainage device according to claim 2, characterized in that, The regulation assembly further includes a water tank, which is connected with a liquid level control member, a liquid inlet valve, a liquid supplement pipe and a one-way valve. The liquid inlet valve is arranged between the water tank and the fluid supply source. The liquid level control member adjusts the on-off of the liquid inlet valve to maintain the fluid in the water tank at a predetermined liquid level. The inner cavity of the water tank is connected with the driven cavity through the liquid supplement pipe. The one-way valve is arranged on the liquid supplement pipe to prevent the fluid in the driven cavity from flowing back to the water tank. The placement height of the driven cavity is lower than the predetermined liquid level. The main side switching valve member is further used to control the on-off of the flow path between the driving cavity and the water tank to guide the fluid in the driving cavity to flow into the water tank.

6. A sanitary ware device, characterized in that, Comprising: The drainage device according to any one of claims 1 to 5 and the body connecting the drainage device. The body is provided with a liquid pool, and a sewage discharge port is arranged at the bottom of the liquid pool. The fluid discharged from the driven cavity is output to the liquid pool and / or the sewage discharge port of the body to wash the inner wall of the liquid pool and / or discharge the dirt from the sewage discharge port.

7. The sanitary equipment according to claim 6, characterized in that, Further comprising at least one of the following technical features: The body has a washing water path, and the fluid discharged from the driven cavity is guided by the washing water path to the upper side of the liquid pool so that the fluid can uniformly wash the inner wall of the liquid pool from top to bottom. A siphon tube connecting the liquid pool and the sewage discharge port is further arranged in the body. The body has a spraying water path, and the fluid discharged from the driven cavity is guided by the spraying water path to the liquid pool and discharged through the sewage discharge port and the siphon tube.

8. A flushing method for a sanitary ware device, based on the sanitary ware device according to claim 7, characterized in that, Comprising the following steps: A driving cavity and a driven cavity with variable spatial size and used for accommodating fluid are provided, wherein the change amount of the expansion space of the driving cavity is smaller than the change amount of the compression space of the driven cavity. If a drainage instruction is received, external fluid is allowed to enter the driving cavity. The driving cavity expands and transmits a driving external force, causing the driven cavity to compress and discharge the fluid contained in the driven cavity until the compression process of the driven cavity is completed. If a water replenishment instruction is received, external fluid is allowed to enter the driven cavity to cause the driven cavity to expand while the driving cavity compresses, and the fluid in the driving cavity is transferred to the driven cavity until the water replenishment process of the driven cavity is completed.

9. The flushing method of the sanitary equipment according to claim 8, wherein When external fluid is injected into the driving cavity, the flow path for the driving cavity to export fluid to the driven cavity is cut off.

10. The flushing method of the sanitary equipment according to claim 8, characterized in that, Further comprising any one of the following technical features: The drainage instruction is removed after a predetermined time, the flow path for injecting external fluid into the driving cavity is cut off, and the driving cavity stops expanding to complete the compression process of the driven cavity. The drainage instruction is removed when the driven cavity is compressed to a predetermined degree, the flow path for injecting external fluid into the driving cavity is cut off, and the driving cavity stops expanding to complete the compression process of the driven cavity. Before the compression process of the driven cavity is completed, if a water replenishment instruction is received, the drainage instruction is removed, the flow path for injecting external fluid into the driving cavity is cut off, and the driving cavity stops expanding to complete the compression process of the driven cavity.

11. The flushing method of the sanitary equipment according to claim 8, wherein, It further includes any one of the following technical features: The water replenishment instruction is generated after the compression process of the driven cavity is completed, and the flow path for injecting external fluid into the driven cavity is opened; The water replenishment instruction is generated when the liquid level in the driven cavity is lower than a predetermined liquid level, and the flow path for injecting external fluid into the driven cavity is opened; The water replenishment instruction is generated when the supply of external fluid is interrupted, and the flow path for injecting external fluid into the driven cavity is opened while the flow path for injecting external fluid into the driving cavity is cut off.

12. The flushing method of the sanitary equipment according to claim 8, characterized in that, When the drainage instruction is removed, the flow path for the driving cavity to discharge fluid to the driven cavity is opened.

13. The flushing method of the sanitary equipment according to claim 8, characterized in that, It further includes any one of the following technical features: The water replenishment instruction is removed after a predetermined time, the flow path for injecting external fluid into the driven cavity is cut off, and the driven cavity stops expanding to complete the water replenishment process of the driven cavity; The water replenishment instruction is removed when the driven cavity expands to a predetermined degree, the flow path for injecting external fluid into the driven cavity is cut off, and the driven cavity stops expanding to complete the water replenishment process of the driven cavity; The water replenishment instruction is removed when a predetermined liquid level is reached in the driven cavity, the flow path for injecting external fluid into the driven cavity is cut off, and the driven cavity stops expanding to complete the water replenishment process of the driven cavity; Before the expansion process of the driven cavity is completed, if a drainage instruction is received, the water replenishment instruction is removed, the flow path for injecting external fluid into the driven cavity is cut off, and the driven cavity stops expanding to complete the water replenishment process of the driven cavity.

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