Flushing mechanism, drainage device and bathroom equipment

Abstract

The present invention relates to a flushing mechanism, a drainage device and bathroom equipment, wherein the flushing mechanism comprises a driving component, a driven component and a transmission component. The driving component forms a driving cavity with a variable space size for accommodating fluid through a main-side flexible bag. The driven component has a driven cavity with a variable space size for accommodating fluid. The transmission component is arranged between the driving component and the driven component, wherein when the driving cavity is expanded due to a driving external force, the transmission component transmits the driving external force to compress the driven cavity and reduce it to discharge the fluid, and the expansion space change of the driving cavity is less than the compression space change of the driven cavity. Since the amount of fluid discharged from each driven cavity at the same time is greater than the amount of fluid entering the driving cavity, the driving external force borne by the driven cavity is used to ensure the flushing flow rate, so that there is no need to place the flushing mechanism at a certain height, which is conducive to optimizing the appearance design or internal structure layout of the bathroom equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of bathroom equipment, and in particular to a flushing mechanism, a drainage device and bathroom equipment. Background Art

[0002] As a bathroom equipment, the development trend of smart toilets is the same as that of mobile phones, with the cover becoming thinner and thinner, almost flat, to improve the appearance and save indoor space. The ceramic water tank of a traditional toilet needs to meet the height requirements to have enough potential energy and water volume to flush the toilet, but the height of the ceramic water tank will cause the smart toilet to occupy a larger indoor space as a whole, making this method gradually eliminated.

[0003] The ceramic-free water tank toilets on the market usually use tap water pressure to flush directly, which requires high water pressure. However, due to the unstable water pressure in old communities, when the water pressure is insufficient, the water output flow rate is slow, and it is impossible to ensure that the washing and flushing are clean.

[0004] Other non-ceramic water tank toilets ensure water volume by providing a booster pump, but this method causes the toilet structure to be complex, expensive and easy to break. Summary of the invention

[0005] Based on this, it is necessary to provide a flushing mechanism, drainage device and bathroom equipment that use a mechanical structure to increase the water flow rate, in order to address the problem that the water pressure of existing bathroom equipment cannot guarantee the flow rate due to water source limitations, and adding a booster pump will lead to a complex structure.

[0006] A flushing mechanism, comprising:

[0007] A driving assembly having a driving cavity with a variable size for accommodating a fluid;

[0008] A driven component has a driven cavity for accommodating a fluid and having a variable space size; the inner wall of the driving cavity is at least partially flexible; and / or the inner wall of the driven cavity is at least partially flexible; and

[0009] A transmission component is arranged between the driving component and the driven component, wherein when the driving chamber expands due to the driving external force, the transmission component transmits the driving external force to compress the driven chamber and reduce the size to discharge the fluid, and the expansion space change of the driving chamber is smaller than the compression space change of the driven chamber.

[0010] The flushing mechanism is configured to fully expand the internal space of the driven chamber by pre-injecting fluid into the driven chamber, and to pre-empt the driving chamber so that the driving chamber is in a contracted state. When the fluid supply source generating the driving external force injects fluid into the contracted driving chamber, the driving chamber generates spatial expansion due to the filling of the fluid; when the driving chamber expands, the driving external force is transmitted to the transmission component, and the driven chamber is compressed through the transmission action of the transmission component, so that the stored fluid in the driven chamber is discharged to the main body of the bathroom equipment. Since the spatial variation of the driven chamber is greater than the spatial variation of the driving chamber when the driving chamber expands, the amount of fluid discharged from the driven chamber is greater than the amount of fluid entering the driving chamber. In the drainage process, the flushing flow rate of the main body can be guaranteed by using the driving external force borne by the driven chamber, so that there is no need to place the flushing mechanism at a certain height, which is conducive to optimizing the appearance design or internal structure layout of the bathroom equipment. The flushing mechanism makes full use of the water volume amplification form to allow a larger volume of fluid to clean the main body of the bathroom equipment per unit time. Under the same volume, a larger flow rate has a better flushing effect on the main body. This solves the problem of the main body of the bathroom equipment not being flushed cleanly under low water pressure, or uses less water to achieve the desired flushing effect, which is in line with today's energy-saving and environmental protection concepts. At the same time, since there is no need to add an additional booster pump, the structure of the flushing mechanism is avoided to be complicated, the cost is increased, or the stability is reduced.

[0011] In one of the embodiments, at least one of the driving cavity and the driven cavity forms space compression through the convergence and deformation of the inner wall surface.

[0012] In one embodiment, when the driving cavity expands due to the driving external force, the driving cavity mainly expands along the primary side preset path, and the driven cavity mainly contracts along the secondary side preset path; the maximum cross-sectional area of ​​the driven cavity perpendicular to the secondary side preset path is greater than the maximum cross-sectional area of ​​the driving cavity perpendicular to the primary side preset path.

[0013] In one embodiment, the primary-side preset path is arranged in parallel with the secondary-side preset path.

[0014] In one embodiment, when the driving cavity expands due to the driving external force and compresses the driven cavity, the increase in the size of the driving cavity on the primary side preset path is equal to the decrease in the size of the driven cavity on the secondary side preset path.

[0015] In one embodiment, when the driving cavity expands due to the driving external force, the driving cavity mainly expands along the primary side preset path, and the driven cavity mainly contracts along the secondary side preset path; the average cross-sectional area of ​​the driven cavity perpendicular to the secondary side preset path is greater than the average cross-sectional area of ​​the driving cavity perpendicular to the primary side preset path.

[0016] In one embodiment, when the driven chamber expands due to replenishing fluid, the transmission component transmits the driving external force to compress the driving chamber and discharge the fluid, and the expansion space change of the driven chamber is greater than the compression space change of the driving chamber.

[0017] In one of the embodiments, when the driven chamber expands due to the expansion of the supplementary fluid, the driven chamber mainly expands along the secondary side preset path, and the driving chamber mainly contracts along the primary side preset path; the increase in the size of the driven chamber on the secondary side preset path is equal to the decrease in the size of the driving chamber on the primary side preset path.

[0018] A drainage device comprises: a flushing mechanism and a regulating component connected to the flushing mechanism; the regulating component is used to control the on-off connection between the driving chamber and the fluid supply source, and the fluid input into the driving chamber generates a driving external force on the driving chamber to expand the driving chamber; the regulating component is also used to adjust the fluid replenishment of the driven chamber; after completing or interrupting the compression of the driven chamber, the regulating component is also used to guide the fluid in the driving chamber to replenish the driven chamber.

[0019] A bathroom device comprises: a drainage device and a body connected to the drainage device; the body is provided with a liquid pool, and a sewage outlet is provided at the bottom of the liquid pool, and the fluid discharged from the dynamic cavity is output to the liquid pool and / or the sewage outlet of the body to flush the inner wall of the liquid pool and / or discharge the dirt from the sewage outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a bathroom equipment according to an embodiment of the present invention;

[0021] Figure 2A It is a schematic structural diagram of a drainage device according to an embodiment of the present invention, wherein the drainage device just starts to drain the driven chamber;

[0022] Figure 2B for Figure 2A The structural schematic diagram of the drainage device shown, wherein the drainage process of the driven chamber is about to be completed;

[0023] Figure 3 for Figure 2A A schematic diagram of the structure of the flushing mechanism in which the drive chamber is in a contracted state;

[0024] Figure 4 for Figure 2B Schematic diagram of the structure of the flushing mechanism in which the drive chamber is in a fully expanded state.

[0025] Reference numerals:

[0026] 100, bathroom equipment; 20, drainage device; 40, flushing mechanism; 41, drive assembly; 411, drive cavity; F1, primary side preset path; 412, primary side shell; 413, primary side opening; 414, active plate; 415, primary side flexible member; 4151, conical surface; 4152, conical surface; 418, primary side extension block; 42, driven assembly; 421, driven cavity; F2, secondary side preset path; 424, transition; 422, secondary side flexible bag; 423, secondary side limit plate; 426, secondary side opening; 43, transmission assembly ; 431, secondary side support plate; 432, secondary side push plate; 433, transmission member; 50, regulating component; 51, primary side switching valve member; 52, switch control member; 53, water tank; 531, liquid level control member; 532, liquid inlet valve; 533, liquid replenishment pipe; 534, one-way valve; 535, predetermined liquid level; 60, drain pipe; 61, siphon elimination valve; 62, high-level section; 30, main body; 31, liquid pool; 311, sewage outlet; 32, washing waterway; 321, liquid outlet; 33, injection waterway; 34, siphon; 700, fluid supply source. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full 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 violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] See also Figures 1 to 4 , is a bathroom device 100 according to an embodiment of the present invention, comprising a drainage device 20 and a body 30 connected to the drainage device 20, the 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 bathroom device 100 is a toilet, and it can be understood that the bathroom device 100 can also be other equipment that needs to be flushed and cleaned, such as a wash basin, a bathtub, etc. Figure 2A and Figure 2BAs shown in , the drainage device 20 includes a flushing mechanism 40 and a regulating component 50 connected to the flushing mechanism 40. The regulating component 50 is used to control the flushing mechanism 40 so that the fluid in the flushing mechanism 40 can wash or flush the body 30. The body 30 can have a washing waterway 32 to guide the fluid in the drainage device 20 to the upper side of the liquid pool 31 so that the fluid can evenly flush the inner wall of the liquid pool 31 from top to bottom. The body 30 can also have a jet waterway 33 and a siphon 34 connected to the sewage outlet 311. The jet waterway 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.

[0034] See also Figure 3 The present invention provides a flushing mechanism 40, comprising: a driving component 41, a driven component 42 and a transmission component 43. The driving component 41 has a driving chamber 411 for accommodating fluid and having a variable space size. The driven component 42 has a driven chamber 421 for accommodating fluid and having a variable space size. The transmission component 43 is arranged between the driving component 41 and the driven component 42. When the driving chamber 411 is expanded due to a driving external force, the transmission component 43 transmits the driving external force to compress the driven chamber 421 and reduce it, so that the fluid in the driven chamber 421 can be discharged, and the expansion space change of the driving chamber 411 is less than the compression space change of the driven chamber 421.

[0035] By injecting fluid into the driven chamber 421 in advance, the internal space of the driven chamber 421 is fully expanded, and the driving chamber 411 is emptied in advance, so that the driving chamber 411 is in a contracted state. When the fluid supply source 700 that generates the driving external force injects fluid into the contracted driving chamber 411, the driving chamber 411 generates spatial expansion due to the filling of the fluid. When the driving chamber 411 expands, the driving external force is transmitted to the transmission component 43. Through the transmission action of the transmission component 43, the driven chamber 421 is compressed, and the reserved fluid in the driven chamber 421 is discharged to the body 30 of the bathroom equipment 100. Since the spatial change of the driven chamber 421 is greater than the spatial change of the driving chamber 411 when the driving chamber 411 expands, the amount of fluid discharged from the driven chamber 421 is greater than the amount of fluid entering the driving chamber 411. During the drainage process, the flushing flow to the main body 30 can be ensured by utilizing the driving external force borne by the driven cavity 421, thereby eliminating the need to place the flushing mechanism 40 at a certain height, which is beneficial to optimizing the appearance design or internal structure layout of the bathroom equipment 100.

[0036] See also Figure 2A and Figure 2BIn some embodiments, the regulating component 50 is used to control the connection between the driving chamber 411 and the fluid supply source 700, and the fluid input into the driving chamber 411 generates a driving external force on the driving chamber 411, so that the driving chamber 411 expands. The regulating component 50 is also used to adjust the fluid replenishment of the driven chamber 421. After the compression of the driven chamber 421 is completed, the regulating component 50 is not only used to guide the fluid in the driving chamber 411 to replenish the driven chamber 421, but also used to control the connection between the driven chamber 421 and the fluid supply source 700, and replenish the fluid provided by the fluid supply source 700 to the driven chamber 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 chamber 411 or the driven chamber 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 the booster pump, or it can be the pumping output of the external pump body of the bathroom equipment 100 to the external water storage.

[0037] Please refer again Figure 2A and Figure 2B The regulating assembly 50 includes a main-side switching valve member 51, a switch control member 52 and a water tank 53. 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 structure, more specifically, an electromagnetic control valve or a manual valve.

[0038] The water tank 53 is connected with a liquid level control component 531, a liquid inlet valve 532, a liquid infusion 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 component 531 adjusts the on and off of the liquid inlet valve 532 to maintain 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 cavity 421 through the liquid infusion pipe 533. The one-way valve 534 is arranged on the liquid infusion pipe 533 to prevent the fluid in the driven cavity 421 from flowing back to the water tank 53, but can make the fluid in the water tank 53 flow to the driven cavity 421 through the one-way valve 534. The placement height of the driven cavity 421 is lower than the predetermined liquid level 535.

[0039] Please refer again Figure 2A and Figure 2B The drainage device 20 further includes a drainage pipe 60 connected to the driven chamber 421. The drainage pipe 60 leads to the liquid pool 31 to guide the fluid discharged from the driven chamber 421 to flow to the liquid pool 31. Specifically, the drainage pipe 60 is at least partially higher in level than the driven chamber 421, and the partially is the high-position section 62 of the drainage pipe 60. Furthermore, the driven chamber 421 is connected to the drainage pipe 60 through a transition section 424, and the level of the transition section 424 is higher than the main body of the driven chamber 421 and slightly lower than the high-position section 62 of the drainage pipe 60. Figure 2Aand Figure 2B In the illustrated embodiment, the driven cavity 421 is connected to the transition point 424 from its top side.

[0040] Please refer again Figure 2A and Figure 2B When the drainage device 20 receives the drainage instruction, the switch control component 52 is controlled to be turned on, and the tap water of the municipal tap water pipeline passes 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 tap water pipeline and the driving chamber 411, and cut off the flow channel between the driving chamber 411 and the water tank 53. The injection of tap water causes the driving chamber 411 to expand, and the driving chamber 411 acts on the driven chamber 421 through the transmission component 433, squeezing the driven chamber 421, so that the water stored in the driven chamber 421 is discharged from the drainage pipe 60, so as to output a larger volume of water to the body 30.

[0041] 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.

[0042] 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.

[0043] Please refer again Figure 2A and Figure 2B 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.

[0044] The liquid level control component 531 can provide feedback through various forms of liquid inlet valves 532 to keep the liquid level in the water tank 53 at a predetermined liquid level 535.

[0045] exist Figure 2A and Figure 2B 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 liquid inlet valve 532 on and off according to the floating height. When the liquid level control member 531 floats to a level higher than or equal to the predetermined liquid level 535, the liquid level control member 531 drives the liquid inlet valve 532 to enter a closed state through a lever transmission, thereby preventing tap water from entering the water tank 53. When the liquid level control member 531 floats to a level lower than the predetermined liquid level 535, the liquid level control member 531 drives the liquid inlet valve 532 to enter an open state through a lever transmission, thereby allowing tap water to be replenished and enter the water tank 53, until the liquid level control member 531 floats to a level higher than or equal to the predetermined liquid level 535, thereby turning the liquid inlet valve 532 off again.

[0046] In some embodiments not shown in the figure, the floating change of the liquid level control member 531 can also adjust the on and off of the liquid inlet valve 532 through the transmission of pressure-sensitive sensors, Hall effect or other sensing methods. Specifically, the liquid level control member 531 floats on the liquid level 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 down and opens the liquid inlet valve 532 through photoelectric sensing, pressure-sensitive sensing or other transmission sensing cooperation methods, and the fluid supply source 700 replenishes the 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 sensing, pressure-sensitive sensing or other cooperation methods, and stops the fluid from being replenished into the water tank 53.

[0047] In other embodiments, the liquid level control component 531 is not limited to being a floating component, and any other coordination method that can enable the fluid in the water tank 53 to maintain a predetermined liquid level 535 can be adopted between the liquid level control component 531 and the liquid inlet valve 532 .

[0048] Please refer again Figure 2A and Figure 2B Since the main-side switching valve component 51 is connected between the driving chamber 411 and the water tank 53, when the drainage instruction lasts for a certain period of time and is revoked, the switch control component 52 connected between the main-side switching valve component 51 and the fluid supply source 700 is controlled to be cut off, and the main-side switching valve component 51 loses the pressure of the fluid, so that the main-side switching valve component 51 with a three-way structure is switched to a state in which the driving chamber 411 is connected to the water tank 53 and the fluid supply source 700 is isolated from the driving chamber 411, so as to guide the accumulated water in the driving chamber 411 to be replenished to the water tank 53.

[0049] The fluid in the water tank 53 is automatically replenished into the driven chamber 421 due to the height difference, and the driven chamber 421 expands due to the replenished fluid. The driven chamber 421 compresses the driving chamber 411 through the transmission of the transmission assembly 43, and the fluid discharged from the driving chamber 411 flows to the water tank 53 through the main side switching valve 51. Figure 2A and Figure 2B When the driven chamber 421 expands due to the tap water in the water tank 53, it reacts to the driving chamber 411 through the transmission assembly 43, and the driving chamber 411 discharges fluid into the water tank 53 due to compression. Since the tap water in the water tank 53 can replenish the driven chamber 421, the accumulated water in the driving chamber 411 can be indirectly replenished to the driven chamber 421.

[0050] Please refer again Figure 2A and Figure 2B , the placement height of a part of the drain pipe 60 is higher than the predetermined liquid level 535. In other words, the highest part of the drain pipe 60 is set at a position higher than the setting position of the main structure of the water tank 53. Unlike the traditional water tank 53 that must be set at a higher position to generate potential energy to drain water to the drain pipe 60, the setting position of the water tank 53 can be more flexible and can reduce the overall volume of the drainage device 20 or the bathroom equipment 100, thereby improving the appearance layout. Furthermore, in order to prevent the accumulated water discharged from the drain pipe 60 from continuously sucking tap water from the water tank 53, the liquid replenishment pipe 533 and the driven chamber 421 into the drain pipe 60 under negative pressure, the drainage device 20 also 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 that is higher than the predetermined liquid level 535. When the driven chamber 421 is compressed and the stored water is discharged through the drain pipe 60, the siphon elimination valve 61 isolates the air pressure environment inside and outside the drain pipe 60 under the high pressure of the stored water, preventing the stored water from leaking from the siphon elimination valve 61. After the compression of the driven chamber 421 is completed or interrupted, the stored water being discharged from the drain pipe 60 forms a negative pressure inside the drain pipe 60 due to the loss of the force that compresses the driven chamber 421. The siphon elimination valve 61 connects the air pressure environment inside and outside 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, eliminating the negative pressure in the drain pipe 60 and interrupting the water flow in the drain pipe 60. Restricted by the one-way valve 534, the fluid in the driven chamber 421 cannot flow back to the water tank 53 when draining water.

[0051] In other embodiments, the drainage command is removed after the driven chamber 421 is compressed to a certain extent, the switch control element 52 is triggered to cut off the flow channel for the 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 the water replenishment command is received, the drainage command is removed, and the switch control element 52 cuts off the flow channel for the external fluid to be injected into the driving chamber 411 after the drainage command is removed.

[0052] In some embodiments, the water replenishment instruction is removed after a predetermined time has passed, so that the flow channel for the external fluid to be injected into the slave chamber 421 is cut off, the slave chamber 421 stops expanding, and the water replenishment process of the slave chamber 421 is completed. Alternatively, the water replenishment instruction is removed after the slave chamber 421 expands to a certain extent, so that the flow channel for the external fluid to be injected into the slave chamber 421 is cut off, the slave chamber 421 stops expanding, and the water replenishment process of the slave chamber 421 is completed. Alternatively, when the drainage instruction is received, the water replenishment instruction is removed, and the removal of the water replenishment instruction causes the flow channel for the external fluid to be injected into the slave chamber 421 to be cut off.

[0053] In some embodiments not shown in the figure, the drain pipe 60 and the transition part 424 may be arranged below the driven chamber 421, and the driven chamber 421 is connected to the transition part 424 from its bottom side. By arranging valves such as pressure valves or solenoid valves in the drain pipe 60 and the transition part 424, the fluid in the driven chamber 421 is prevented from being spontaneously injected into the drain pipe 60 and discharged due to its own gravity. When the expansion of the driving chamber 411 compresses the driven chamber 421, the pressure in the driven chamber 421 increases and the pressure valve member is opened, so that the fluid in the driven chamber 421 enters the drain pipe 60 and is discharged to the body 30. In this embodiment, the driven chamber 421 can be connected to the drain pipe 60 through its bottom side.

[0054] See also Figure 3 and Figure 4 , the driving cavity 411 forms a compression of the space through the gathering deformation of the inner wall surface. In one embodiment, the driving component 41 includes a main side shell 412, an active plate 414 and a main side flexible member 415. The active plate 414 is movably arranged in the inner cavity of the main side shell 412, and the main side flexible member 415 is connected between the main side shell 412 and the active plate 414. The moving direction of the active plate 414 relative to the main side shell 412 is the main side preset path F1, and the main side preset path F1 is also the expansion direction or contraction direction of the driving cavity 411. Along the expansion direction of the driving cavity 411, the active plate 414 and the main side shell 412 are sealed and connected to different parts of the main side flexible member 415 to cooperate to form the driving cavity 411. The active plate 414 is connected to the transmission component 43, and during the movement of the active plate 414, the transmission component 43 moves synchronously. The main-side housing 412 is provided with a main-side port 413 communicating with the driving chamber 411 , and fluid flows into or out of the driving chamber 411 through the main-side port 413 .

[0055] The main side flexible member 415 is cylindrical, one end of which is connected to the active plate 414 or fixedly embedded in the active plate 414, and the other end of which is connected to the main side housing 412 or fixedly embedded in the main side housing 412. In one embodiment, a gap is provided between the edge of the active plate 414 and the inner wall of the main side housing 412 to facilitate the movement of the active plate 414 in the main side housing 412. Further, the main side flexible member 415 is tapered and has a large end and a small end, the small end is connected to the active plate 414, and the large end is connected to the main side housing 412. Further, the driving assembly 41 also 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, so as to limit the active plate 414 exiting 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 range of motion of the active plate 414 on a plane perpendicular to the main side preset path F1.

[0056] exist Figure 3 and Figure 4 In the illustrated embodiment, when the active plate 414 moves along the main side preset path F1 to go deeper 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 active plate 414 moves along the main side preset path F1 to exit the inner cavity of the main side shell 412, 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 injection of fluid, the driving cavity 411 mainly expands along the main side preset path F1.

[0057] exist Figure 3 and Figure 4In 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.

[0058] Since the main side flexible member 415 and the active plate 414 need to be accommodated in the main side shell 412 when the driving cavity 411 contracts, the cross-sectional area of ​​the inner cavity of the main side shell 412 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.

[0059] Please refer again Figure 3 and Figure 4 , the driven component 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 a driven cavity 421. The secondary side flexible bag 422 is accommodated in the cavity formed by the secondary side limiting plate 423 to limit the maximum expansion range of the secondary side flexible bag 422 on a 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. Figure 3 In the illustrated embodiment, a single cylindrical secondary side stop plate 423 forms a chamber for accommodating the secondary side flexible bag 422. In other embodiments, the chamber may also be formed by a plurality of secondary side stop plates 423 distributed around a plane perpendicular to the secondary side preset path F2. In this embodiment, due to the restriction of the secondary side stop plate 423, the cross-sectional area of ​​the chamber formed by the secondary side stop plate 423 on the plane perpendicular to the secondary side preset path F2 is the maximum cross-sectional area of ​​the driven chamber 421 perpendicular to the secondary side preset path F2.

[0060] exist Figure 3 and Figure 4In the illustrated embodiment, the transmission assembly 43 includes a transmission member 433, a secondary support plate 431, and a secondary push plate 432 connected to the transmission member 433. The transmission member 433 connects the secondary push plate 432 with the drive assembly 41, more specifically, the active plate 414 in the drive assembly 41. Along the secondary preset path F2, the secondary flexible bag 422 is located between the secondary push plate 432 and the secondary support plate 431, and the secondary push plate 432 is used to abut against the secondary flexible bag 422. Figure 3 In the illustrated embodiment, the secondary side push plate 432 is movably arranged in the cavity formed by the extension of the secondary side limit plate 423, and the secondary side limit plate 423 is fixedly connected to the secondary side support plate 431. When the driving cavity 411 is expanded by the driving external force, the driving cavity 411 acts on the secondary side push plate 432 through the transmission member 433, so that the secondary side push plate 432 moves close to the secondary side support plate 431, so as to compress the secondary side flexible bag 422.

[0061] Further, the shape of the cross section of the cavity formed by the secondary side limiting plate 423 on the vertical secondary side preset path F2 matches the shape and size of the secondary side push plate 432, so that there is a large contact area between the secondary side push plate 432 and the secondary side flexible bag 422. A gap is left between the inner wall of the secondary side limiting plate 423 facing the secondary side push plate 432 and the secondary side push plate 432, so that the secondary side push plate 432 can move flexibly relative to the secondary side limiting plate 423 or the secondary side support plate 431. The secondary side support plate 431 is connected to the secondary side opening 426. The opening of the secondary side flexible bag 422 is connected to the secondary side opening 426 to guide the fluid discharged from the secondary side flexible bag 422 to pass through the secondary side support plate 431. Further, the secondary side support plate 431 is integrally connected with the secondary side limiting plate 423, or the secondary side support plate 431, the secondary side limiting plate 423 and the main side shell 412 are integrally connected.

[0062] exist Figure 3 In the illustrated embodiment, when the driving cavity 411 is in a contracted state, the active plate 414 is located at a relatively deep position in the inner cavity of the main side housing 412, and the main side flexible member 415 is opposite to 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 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 adapts to the position change of the active plate 414 by deformation.

[0063] When the driving cavity 411 is expanded due to the driving external force, the active plate 414 acts on the secondary side push plate 432 through the transmission member 433, so that the secondary side push plate 432 moves close to the secondary side support plate 431, so as to compress the secondary side flexible bag 422 and make it smaller, thereby discharging the fluid in the secondary side flexible bag 422. When the secondary side push plate 432 starts to push the secondary side flexible bag 422, due to the unstable shape of the secondary side flexible bag 422, in the case of the limited opening diameter of the secondary side flexible bag 422, the fluid in the secondary side flexible bag 422 generates a lateral flow trend perpendicular to the secondary side preset path F2, and the secondary side flexible bag 422 expands perpendicular to the secondary side preset path F2 toward the outer wall of the secondary side limit plate 423 due to the lateral flow trend, until the secondary side flexible bag 422 is in contact with the secondary side limit plate 423 toward the outer wall of the secondary side limit plate 423. Afterwards, 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 on the vertical secondary side preset path F2 remains basically unchanged and mainly shrinks along the secondary side preset path F2, thereby reducing the size of the driven cavity 421 on the secondary side preset path F2.

[0064] Since the active plate 414 moves synchronously with the secondary side push plate 432, when the driving chamber 411 is expanded due to the driven external force and the driven chamber 421 is compressed and reduced, the increase in the size of the driving chamber 411 on the primary side preset path F1 is equal to the decrease in the size of the driven chamber 421 on the secondary side preset path F2. Further, when the driving chamber 411 is expanded due to the driven external force, the driving chamber 411 mainly expands along the primary side preset path F1, and the driven chamber 421 mainly contracts along the secondary side preset path F2. The average cross-sectional area of ​​the driven chamber 421 perpendicular to the secondary side preset path F2 is greater than the average cross-sectional area of ​​the driving chamber 411 perpendicular to the primary side preset path F1. Specifically, the areas of different cross sections of the driving cavity 411 perpendicular to the primary side preset path F1 are S1, S2, ... Sn, and the corresponding differential lengths of each cross section on the primary side preset path F1 are ΔL1, ΔL2, ... ΔLn, and after superimposing different cross-sectional spaces, for example, S1·ΔL1+S2·ΔL2+...+Sn·ΔLn, the total space of the driving cavity 411 can be obtained. The total space of the driving cavity 411 is divided by the size of the driving cavity 411 on the primary side preset path F1, for example, the size is ΔL1+ΔL2+...+ΔLn, and the average cross-sectional area of ​​the driving cavity 411 perpendicular to the primary side preset path F1 can be obtained. In the same way, the average cross-sectional area of ​​the driven cavity 421 perpendicular to the secondary side preset path F2 can be obtained.

[0065] exist Figure 3In the illustrated embodiment, the primary side preset path F1 is arranged in parallel with the secondary side preset path F2. Since the transmission member 433 is connected between the active plate 414 and the secondary side push plate 432, when the driving cavity 411 is expanded by the driving external 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 by the secondary side flexible bag 422. The space of the driving cavity 411 expansion 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 on the plane perpendicular to the secondary side preset path F2 is larger than the cross-sectional area of ​​the inner cavity of the main side shell 412 on the plane perpendicular to the main 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 main 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 expansion of the driving cavity 411 due to the driving external 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 the larger volume of fluid is discharged into the body 30 of the bathroom equipment 100, thereby ensuring the washing or sewage discharge effect of the bathroom equipment 100.

[0066] In some embodiments not shown in the figure, the secondary side limit plate 423 may be fixedly connected to the secondary side push plate 432, the transmission member 433 may be connected between the active plate 414 and the secondary side push plate 432, the secondary side limit plate 423 moves with the secondary side push plate 432 relative to the secondary side support plate 431, the secondary side support plate 431 is movably arranged in the cavity surrounded by the secondary side limit plate 423, during the movement of the secondary side push plate 432, the secondary side push plate 432 moves relative to the secondary side support plate 431, and compresses and deforms the secondary side flexible bag 422 in the space defined by the secondary side limit plate 423 and the secondary side support plate 431. In other embodiments, a plurality of secondary side limit plates 423 may be formed around and together form a cavity for accommodating the secondary side flexible bag 422, and a portion of the plurality of secondary side limit plates 423 may be connected to the secondary side push plate 432, while another portion may be connected to the secondary side support plate 431.

[0067] 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. The primary preset path F1 and the secondary preset path F2 are not limited to a parallel relationship.

[0068] In some embodiments not shown in the figure, the driving assembly 41 includes a main side flexible bag and a main side limiting plate. The inner cavity of the main side flexible bag is used as a driving cavity 411. The main side flexible bag is accommodated in a cavity formed by the main side limiting plate to limit the maximum expansion range of the main side flexible bag on a plane perpendicular to the main side preset path F1, so that when the main side flexible bag is expanded by fluid injection, its space mainly changes along the main side preset path F1. In some embodiments not shown in the figure, a single cylindrical main side limiting plate forms a cavity for accommodating the main side flexible bag. In other embodiments, the cavity can also be formed by a plurality of main side limiting plates distributed around a plane perpendicular to the main side preset path F1. In this embodiment, due to the limitation of the main side limiting plate, the cross-sectional area of ​​the cavity formed by the main side limiting plate on a 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.

[0069] In some embodiments not shown in the figure, the transmission assembly 43 includes a main side push plate, a transmission member 433, a main side support plate, a secondary side push plate 432 and a secondary side support plate 431. The transmission member 433 connects the main side push plate and the secondary side push plate 432. Along the main side preset path F1, the main side flexible bag is between the main side push plate and the main side support plate, and the main side push plate is used to abut against the main side flexible bag. In some embodiments not shown in the figure, the main side push plate is movably arranged in the cavity formed by the extension of the main side limit plate, and the main side limit plate is fixedly connected to the main side support plate. When the driving cavity 411 is expanded due to the driving external force, the driving cavity 411 acts on the secondary side push plate 432 through the transmission member 433, so that the secondary side push plate 432 moves close to the secondary side support plate 431 to compress the secondary side flexible bag 422. In this embodiment, the moving direction of the main side push plate relative to the main side support plate is the main side preset path F1.

[0070] Furthermore, the shape and size of the cross section of the cavity formed by the main side limiting plate on the vertical main side preset path F1 are matched with the shape and size of the main side push plate, so that there is a larger contact area between the main side push plate and the main side flexible bag. A gap is left between the main side limiting plate and the inner wall of the main side push plate toward the main side push plate, so that the main side push plate can move flexibly relative to the main side limiting plate or the main side support plate. A main side opening 413 is provided on the main side support plate. The opening of the main side flexible bag is connected to the main side opening 413 to guide the fluid in and out of the inner cavity of the main side flexible bag. Furthermore, the main side support plate is integrally connected to the main side limiting plate, or the main side support plate, the main side limiting plate and the secondary side limiting plate 423 are integrally connected.

[0071] When the driving chamber 411 is in a contracted state, the main side flexible bag gathers and contracts, and the main side push plate is in a position relatively close to the main side support plate. Before the driving chamber 411 expands, the driven chamber 421 reserves fluid, and the pressure of the fluid in the driven chamber 421 has a certain resistance to the movement of the transmission assembly 43. The fluid supply source 700 begins to inject fluid into the main side flexible bag through the main side port 413. Since the main side push plate is subject to the resistance of the driven chamber 421, the main side flexible bag expands along the plane perpendicular to the main side preset path F1 under the obstruction of the main side push plate until the main side flexible bag is in contact with the main side limit plate toward the outer wall of the main side limit plate. Thereafter, when the main side flexible bag is further supplemented with fluid, since it has been restricted by the main side limit plate, the cross-sectional shape of the main side flexible bag on the perpendicular main side preset path F1 remains basically unchanged, and it mainly expands along the main side preset path F1 and pushes the main side push plate to move, so that the size of the driving chamber 411 on the main side preset path F1 gradually increases. When the primary side flexible bag expands, it acts on the secondary side flexible bag 422 through the primary side push plate, the transmission member 433 and the secondary side push plate 432 in sequence, so that the secondary side flexible bag 422 is compressed.

[0072] exist Figure 3 In the embodiment shown, since the cross-sectional area of ​​the chamber formed by the secondary side limiting plate 423 on the plane perpendicular to the secondary side preset path F2 is larger than the cross-sectional area of ​​the chamber formed by the primary side limiting plate on the plane perpendicular to the primary side preset path F1, when the primary side flexible bag is expanded by injecting fluid, the space contraction amount of the inner cavity of the driven cavity 421 is larger than the space increase amount of the primary side flexible bag. Therefore, during the expansion of the driving cavity 411 due to the driven external 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 primary side flexible bag, so that the larger volume of fluid is discharged into the body 30 of the bathroom device 100.

[0073] In some embodiments not shown in the figure, the driven assembly 42 includes a secondary side housing, a driven plate and a secondary side flexible member. The driven plate is movable through the inner cavity of the secondary side housing, the secondary side flexible member is connected between the secondary side housing and the driven plate, and the movable direction of the driven plate relative to the secondary side housing is the secondary side preset path F2. Along the expansion direction of the driven cavity 421, that is, the secondary side preset path F2, the driven plate and the secondary side housing are sealed and connected to different parts of the secondary side flexible member to cooperate to form the driven cavity 421. The driven plate is connected to the transmission assembly 43, and during the movement of the driven plate, the transmission assembly 43 moves synchronously. A secondary side port 426 connected to the driven cavity 421 is provided on the secondary side housing, and the fluid flows into or out of the driven cavity 421 through the secondary side port 426. The secondary side flexible member is cylindrical, one end of which is connected to the driven plate or fixedly embedded in the driven plate, and the other end is connected to the secondary side housing or fixedly embedded in the secondary side housing. In one embodiment, a gap is provided between the edge of the driven plate and the inner wall of the secondary housing to facilitate the movement of the driven plate in the secondary housing. Further, the secondary flexible member is tapered and has a large end and a small end, the small end is connected to the driven plate, and the large end is connected to the secondary housing. Further, the driven assembly 42 also includes a secondary extension block connected to the secondary housing, the secondary extension block is close to the opening side of the secondary housing, so as to limit the driven plate exiting from the inner cavity of the secondary housing.

[0074] In some embodiments not shown in the figure, when the driven plate moves along the secondary preset path F2 to the direction of entering the inner cavity of the secondary shell, the space of the driven cavity 421 shrinks. When the driven cavity 421 is fully contracted, the depth of the driven plate embedded in the secondary shell is large, and the surface of the secondary flexible member and the inner wall surface of the secondary shell form a folded relationship, so that one side surface of the secondary flexible member is opposite to the inner wall surface of the secondary shell, so that the space of the driven cavity 421 is smaller than the inner cavity space of the secondary shell. When the driven plate moves along the secondary preset path F2 to the direction of exiting the inner cavity of the secondary shell, the space of the driven cavity 421 expands. When the driven cavity 421 is fully expanded, the driven plate leaves the inner cavity range of the secondary shell, and the secondary flexible member flips to the outside of the secondary shell, so that the space of the driven cavity 421 is equal to the sum of the space surrounded by the secondary flexible member after the secondary flexible member is flipped outward and the inner cavity space of the secondary shell. Since the space of the driven chamber 421 is restricted by the inner wall of the secondary shell in the radial direction of the moving trajectory of the driven plate, the spatial expansion of the driven chamber 421 is mainly caused by the movement of the driven plate relative to the secondary shell. Therefore, when the driven chamber 421 expands due to the addition of fluid, the driven chamber 421 mainly expands along the secondary preset path F2.

[0075] Since the secondary side flexible member and the driven plate need to be accommodated in the secondary side shell when the driven cavity 421 contracts, the cross-sectional area of ​​the inner cavity of the secondary side shell 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.

[0076] In some embodiments not shown in the figure, the transmission assembly 43 includes a transmission member 433, and the transmission member 433 is connected between the active plate 414 and the driven plate. When the driving cavity 411 expands and the active plate 414 withdraws from the main side housing 412, the active plate 414 pushes the driven plate into the inner cavity of the secondary side housing through the transmission member 433, and the space of the driven cavity 421 is thereby shrunk. Specifically, the secondary side extension block is distributed along the opening edge of the secondary side housing to limit the range of movement of the driven plate on the plane perpendicular to the secondary side preset path F2. The secondary side extension block is fixedly connected to the main side extension block 418, so that the main side housing 412 and the secondary side housing are relatively fixed.

[0077] The transmission assembly 43 is not limited to a single one or a combination of the primary side push plate, the secondary side support plate 431, the secondary side push plate 432, the transmission member 433 or the primary side support plate. The transmission member 433 is not limited to a single component, and the transmission assembly 43 can be any structure that allows the driven cavity 421 to be compressed as the driving cavity 411 expands.

[0078] From the above embodiments, the inner wall of the driving chamber 411 is at least partially flexible, and the inner wall of the driven chamber 421 is at least partially flexible, so as to ensure the sealing of the driving chamber 411 or the driven chamber 421 during the space change process. At least one of the driving chamber 411 and the driven chamber 421 forms a compression of the space through the convergence and deformation of the inner wall surface.

[0079] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A flushing mechanism, characterized in that: include: A drive assembly having a drive cavity with a variable size for accommodating a fluid; A driven component having a driven cavity for accommodating fluid and having a variable space size; The inner wall of the driving cavity is at least partially flexible; and / or the inner wall of the driven cavity is at least partially flexible; and a transmission assembly disposed between the driving assembly and the driven assembly, wherein when the driving chamber expands due to a driving external force, the transmission assembly transmits the driving external force to compress the driven chamber and discharge the fluid, and the expansion space change of the driving chamber is smaller than the compression space change of the driven chamber; When the driving cavity expands due to the driving external force, the driving cavity mainly expands along the primary side preset path, and the driven cavity mainly contracts along the secondary side preset path; the maximum cross-sectional area of ​​the driven cavity perpendicular to the secondary side preset path is greater than the maximum cross-sectional area of ​​the driving cavity perpendicular to the primary side preset path.

2. The flushing mechanism according to claim 1, characterized in that: At least one of the driving cavity and the driven cavity forms space compression through the convergence and deformation of the inner wall surface.

3. The flushing mechanism according to claim 1, characterized in that: The primary-side preset path is arranged in parallel with the secondary-side preset path.

4. The flushing mechanism according to claim 1, characterized in that: When the driving cavity expands due to the driving external force and the driven cavity is compressed, the increase in size of the driving cavity on the primary side preset path is equal to the decrease in size of the driven cavity on the secondary side preset path.

5. The flushing mechanism according to any one of claims 1 to 4, characterized in that: An alternative approach is provided, wherein when the driving cavity expands due to a driving external force, the driving cavity mainly expands along the primary side preset path, and the driven cavity mainly contracts along the secondary side preset path; the average cross-sectional area of ​​the driven cavity perpendicular to the secondary side preset path is greater than the average cross-sectional area of ​​the driving cavity perpendicular to the primary side preset path.

6. The flushing mechanism according to claim 1, characterized in that: When the driven chamber expands due to the replenishment of fluid, the transmission assembly transmits the driving external force to compress the driving chamber and discharge the fluid. The expansion space change of the driven chamber is greater than the compression space change of the driving chamber.

7. The flushing mechanism according to claim 6, characterized in that: When the driven chamber expands due to the expansion of the supplementary fluid, the driven chamber mainly expands along the secondary side preset path, and the driving chamber mainly contracts along the primary side preset path; the increase in the size of the driven chamber on the secondary side preset path is equal to the decrease in the size of the driving chamber on the primary side preset path.

8. A drainage device, characterized in that: include: The flushing mechanism according to any one of claims 1 to 7 and a regulating assembly connected to the flushing mechanism; the regulating assembly is used to control the on-off connection between the drive chamber and the fluid supply source, so that the fluid input into the drive chamber generates a driving external force on the drive chamber, causing the drive chamber to expand; The regulating component is further used to adjust the fluid replenishment of the driven chamber; after the compression of the driven chamber is completed or interrupted, the regulating component is further used to guide the fluid in the driving chamber to replenish the driven chamber.

9. A bathroom equipment, characterized in that: include: The drainage device according to claim 8 and the main body connected to the drainage device; the main body is provided with a liquid pool, and a sewage outlet is provided at the bottom of the liquid pool, and the fluid discharged from the dynamic cavity is output to the liquid pool and / or sewage outlet of the main body to flush the inner wall of the liquid pool and / or discharge the dirt from the sewage outlet.

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