Flushing mechanism, drainage device and bathroom equipment

Abstract

The present invention relates to a flushing mechanism, a drainage device and a 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 variation of the driving cavity is less than the compression space variation of the driven cavity. Since the fluid injected by the fluid supply source is retained in the main side flexible bag after expansion, the main side flexible bag can expand at any position and compress the driven component to discharge the fluid through the transmission component, so there is no need to limit the angle of the main side flexible bag to the access port of the fluid supply source, so that the flushing mechanism can flexibly adapt to the spatial layout in the bathroom equipment.

Description

Technical Field

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

[0002] Some bathroom equipment needs to be injected with water after use to clean the inner wall or flush away dirt. For example, a toilet needs to be flushed and cleaned or flushed away dirt by water after use. The flow rate of the water flow injected per unit time is different, and the flushing or flushing effect on the surface of the toilet is different. Generally, the larger the flow rate of water injected per unit time, the cleaner the inner wall of the bathroom equipment will be, or the dirt can be more reliably flushed out of the sewage outlet. The existing scheme generally reserves a certain amount of water in the water tank in advance, and a venturi structure is set in the water tank. When the water injection with water pressure passes through the water tank from the venturi structure, a negative pressure is formed in the venturi structure and the water stored in the water tank is sucked out. However, due to the limitation of this principle, the water outlet of the water tank needs to be higher than the liquid outlet surface of the water tank, and the water injection with water pressure needs to be limited to the bottom of the venturi structure or the bottom side of the water tank, resulting in restrictions on the internal space layout of the bathroom equipment. Summary of the invention

[0003] Based on this, it is necessary to provide a flushing mechanism, a drainage device and bathroom equipment to address the problem that the water storage container in the existing bathroom equipment needs to be limited to injecting fluid from the bottom side, which restricts the internal layout of the bathroom equipment.

[0004] A flushing mechanism, comprising:

[0005] A driving assembly, wherein the driving assembly forms a driving cavity with a variable space size for accommodating fluid through the main-side flexible bag, and the driving cavity obtains a driving external force from a fluid supply source;

[0006] A driven component having a driven cavity for accommodating a fluid and having a variable space size; and

[0007] 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 provided by the fluid supply source, the transmission component transmits the driving external force to compress the driven chamber and reduce the fluid in the driven chamber, and the compression space change of the driven chamber is greater than the expansion space change of the driving chamber.

[0008] 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. Since the fluid injected by the fluid supply source is retained in the expanded main side flexible bag, the main side flexible bag can expand at any position and compress the driven component to discharge the fluid through the transmission component, so there is no need to limit the angle of the main side flexible bag to the access port of the fluid supply source, so that the flushing mechanism can flexibly adapt to the spatial layout in the bathroom equipment. The driving cavity is formed by the inner cavity of the main side flexible bag, which is easy to shrink or expand and deform, so that the inner wall surface of the driving cavity remains intact as a whole, which is conducive to strengthening the sealing of the driving cavity and avoiding fluid leakage in the driving cavity. Since the main side flexible bag is deformed by itself during the shrinkage or expansion process, the friction with other parts is small, and the main side flexible bag itself is made of flexible material, so it is not easy to be damaged during the working process and has a long service life.

[0009] In one embodiment, the transmission assembly includes a main side push plate, a transmission member, and a main side support plate; the main side flexible bag is located between the main side push plate and the main side support plate; when the main side flexible bag expands, the main side push plate moves away from the main side support plate, and the main side push plate transmits the driving external force to the driven assembly through the transmission member, so that the compression of the driven cavity becomes smaller.

[0010] In one embodiment, the drive assembly also includes a main side limiting plate, and the main side flexible bag is accommodated in a cavity formed by the main side limiting plate; one of the main side push plate and the main side support plate is connected to the main side limiting plate, and the other one is movably arranged through the cavity formed by the main side limiting plate.

[0011] In one of the embodiments, if the main side limit plate is connected to the main side support plate, and the main side push plate moves through the chamber formed by the main side limit plate, a gap is provided between the main side push plate and the inner wall of the chamber to reduce the friction between the main side push plate and the main side limit plate.

[0012] In one of the embodiments, the main side limiting plate extends around the main side flexible bag to form a chamber; the main side supporting plate is connected to the main side limiting plate so that the chamber of the main side limiting plate forms a semi-closed structure; when the main side flexible bag expands, the main side pushing plate moves along the opening direction of the chamber of the main side limiting plate.

[0013] In one embodiment, the main-side flexible bag shrinks or expands in any shape in the chamber formed by the main-side limiting plate.

[0014] In one of the embodiments, the opening of the main-side flexible bag is close to the main-side support plate to prevent the main-side push plate from passing through the opening of the main-side flexible bag during movement.

[0015] In one embodiment, the main-side flexible bag has toughness to prevent the main-side flexible bag from over-expanding and rupturing.

[0016] 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.

[0017] 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 or the sewage outlet of the body to flush the inner wall of the liquid pool or discharge dirt from the sewage outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a flushing mechanism according to an embodiment of the present invention;

[0019] 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;

[0020] Figure 2B for Figure 2A The structural schematic diagram of the drainage device shown, wherein the drainage process of the drainage device is about to end;

[0021] Figure 3 It is a structural schematic diagram of a bathroom device according to an embodiment of the present invention.

[0022] The corresponding relationship between the symbols and their meanings in the accompanying drawings is as follows:

[0023] 100, bathroom equipment; 20, drainage device; 30, body; 31, liquid pool; 311, sewage outlet; 32, washing waterway; 321, liquid outlet; 33, spray waterway; 34, siphon; 40, flushing mechanism; 41, drive assembly; 411, drive cavity; 413, main side opening; 416, main side flexible bag; 417, main side limit plate; 42, driven assembly; 421, driven cavity; 422, secondary side flexible bag; 424, transition; 426, secondary side opening; 423, Secondary side limit plate; 43, transmission assembly; 430, primary side push plate; 431, secondary side support plate; 432, secondary side push plate; 433, transmission member; 434, primary side support plate; 50, regulating assembly; 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 tube; 534, one-way valve; 535, predetermined liquid level; 60, drain pipe; 61, siphon elimination valve; 62, high level section; 700, fluid supply source. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] See also Figures 1 to 3 , 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.

[0031] See also Figure 1 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 forms a driving chamber 411 with a variable space size for accommodating fluid through a main-side flexible bag 416. The driven component 42 has a driven chamber 421 with a variable space size for accommodating fluid. The transmission component 43 is arranged between the driving component 41 and the driven component 42, wherein 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.

[0032] 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, and the driven chamber 421 is compressed through the transmission action of the transmission component 43, so that the stored 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. Since the fluid injected by the fluid supply source 700 is retained in the expanded main side flexible bag 416, the main side flexible bag 416 can expand at any position and compress the driven component 42 to discharge the fluid through the transmission component 43, so there is no need to limit the angle of the main side flexible bag 416 to the access port of the fluid supply source 700, so that the flushing mechanism 40 can flexibly adapt to the spatial layout in the bathroom equipment 100. The driving cavity 411 is formed by the inner cavity of the main side flexible bag 416. The main side flexible bag 416 is easy to shrink or expand and deform, which facilitates the overall integrity of the inner wall surface of the driving cavity 411, and is conducive to strengthening the sealing of the driving cavity 411 and avoiding fluid leakage in the driving cavity 411. Since the main side flexible bag 416 is deformed by itself during the shrinkage or expansion process, the friction with other components is small, and the main side flexible bag 416 itself is made of flexible material, so it is not easy to be damaged during the working process and has a long service life.

[0033] 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.

[0034] See also Figure 2A and Figure 2B In some embodiments, the fluid input into the driving chamber 411 generates an external driving force on the driving chamber 411, causing the driving chamber 411 to expand. After the compression of the driven chamber 421 is completed, the regulating component 50 is used to guide the fluid in the driving chamber 411 to be replenished to the driven chamber 421, and is 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.

[0035] Please refer again Figure 2A and Figure 2B The regulating component 50 includes a main-side switching valve component 51, a switch control component 52 and a water tank 53. The main-side switching valve component 51 is connected between the fluid supply source 700 and the drive chamber 411, and the main-side switching valve component 51 is also connected between the drive chamber 411 and the water tank 53. The switch control component 52 is connected between the main-side switching valve component 51 and the fluid supply source 700. The switch control component 52 is a valve structure component, more specifically, an electromagnetic control valve. The water tank 53 is connected with a liquid level control component 531, a liquid inlet valve 532, a liquid replenishing tube 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 maintains the fluid in the water tank 53 at a predetermined liquid level 535 by adjusting the on and off of the liquid inlet valve 532. The inner cavity of the water tank 53 is connected to the driven cavity 421 through a liquid infusion tube 533. A one-way valve 534 is provided on the liquid infusion tube 533 to prevent the fluid in the driven cavity 421 from flowing back to the water tank 53, but to allow the fluid in the water tank 53 to 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.

[0036] 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 portion 424, and the level of the transition portion 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 2A and Figure 2B In the illustrated embodiment, the driven cavity 421 is connected to the transition point 424 from its top side.

[0037] 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 assembly 43, 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.

[0038] 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.

[0039] 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.

[0040] Please refer again Figure 2A and Figure 2B After the compression of the driven chamber 421 is completed or interrupted, the weight of the remaining accumulated water in the driven chamber 421 forms a 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 communicating vessel principle, 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.

[0041] The liquid level control component 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, the liquid level control component 531 floats down and opens the liquid inlet valve 532 through mechanical transmission, photoelectric induction, pressure-sensitive sensing or other feedback coordination 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, the liquid level control component 531 closes the liquid inlet valve 532 through mechanical transmission, photoelectric induction, pressure-sensitive sensing or other feedback coordination methods to prevent the fluid from being replenished into the water tank 53.

[0042] exist Figure 2A and Figure 2BIn the illustrated embodiment, a liquid inlet valve 532 is connected between the municipal tap water pipeline 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.

[0043] In some other embodiments, the up and down floating change of the liquid level control component 531 can also be transmitted through pressure-sensitive sensors, Hall effects or other sensing methods to adjust the on and off of the liquid inlet valve 532.

[0044] 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 command 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 switched to the cut-off state due to the revocation of the drainage command, and the main-side switching valve component 51 loses the pressure effect of the fluid. The main-side switching valve component 51 with a three-way structure is therefore 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.

[0045] 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.

[0046] 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 discharged from the drain pipe 60 from leaking through 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.

[0047] In other embodiments, the drainage command is cancelled after the driven chamber 421 is compressed to a predetermined degree, the switch control element 52 is triggered to cut off the flow path of the external fluid 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 cancelled, and the switch control element 52 cuts off the flow path of the external fluid injected into the driving chamber 411 after the drainage command is cancelled.

[0048] Specifically, after the compression of the driven chamber 421 is completed or interrupted, the weight of the remaining accumulated water in the driven chamber 421 causes the driven chamber 421 to expand due to the loss of the force compressing the driven chamber 421 and the siphon elimination valve 61 eliminating the negative pressure in the drain pipe 60 and interrupting the water flow in the drain pipe 60. In the absence of fluid replenishment, the liquid level in the driven chamber 421 or the drain pipe 60 drops and is lower than the predetermined liquid level 535.

[0049] exist Figure 2A and Figure 2BIn the illustrated embodiment, when the liquid level in the slave chamber 421 or the drain pipe 60 is lower than the predetermined liquid level 535, a water replenishment instruction is generated and acts on the one-way valve 534, causing the one-way valve 534 to be turned on. The fluid in the water tank 53 can thus be replenished to the slave chamber 421 through the liquid replenishment pipe 533 and the one-way valve 534. When the liquid level in the slave chamber 421 or the drain pipe 60 rises to a level greater than or equal to the predetermined liquid level 535, the liquid levels between the slave chamber 421 and the water tank 53 reach equilibrium, the water replenishment instruction is thus cancelled, and the one-way valve 534 is turned off. The flow path from the water tank 53 to the slave chamber 421 is simultaneously turned off.

[0050] In the above-mentioned embodiment, the horizontal height of the drain pipe 60 is at least partially higher than the horizontal height of the driven chamber 421. In some embodiments not shown in the figure, the drain pipe 60 and the transition part 424 may be arranged to be lower than the main body of 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 main body 30. In this embodiment, the driven chamber 421 can be connected to the drain pipe 60 through its bottom side.

[0051] See also Figure 1 In the flushing mechanism 40 shown, the driving assembly 41 further includes a main side limit plate 417, and the main side flexible bag 416 is accommodated in a chamber formed by the main side limit plate 417. The transmission assembly 43 includes a main side push plate 430, a transmission member 433, and a main side support plate 434. The transmission assembly 43 further includes a secondary side push plate 432 and a secondary side support plate 431, and the transmission member 433 is connected between the main side push plate 430 and the secondary side push plate 432. The main side flexible bag 416 is between the main side push plate 430 and the main side support plate 434. The main side support plate 434 is connected to the main side limit plate 417, and the main side push plate 430 passes through the chamber formed by the main side limit plate 417. Specifically, a single main side limit plate 417 extends around the main side flexible bag 416 to form a chamber to limit the direction in which the main side flexible bag 416 expands or contracts.

[0052] Specifically, the main side support plate 434 is connected to one of the inner cavity outlets of the main side limit plate 417, so that the chamber of the main side limit plate 417 forms a semi-enclosed structure, and the main side push plate 430 is placed in the main side limit plate 417 through the other inner cavity outlet of the main side limit plate 417. The main side through-port 413 is formed on the main side support plate 434, and the opening of the main side flexible bag 416 is connected to the main side through-port 413, that is, the opening of the main side flexible bag 416 is close to the main side support plate 434. Further, the main side flexible bag 416 passes through the main side through-port 413 to form an opening. Since the main side push plate 430 moves away from or close to the main side support plate 434, and the opening of the main side flexible bag 416 is close to the main side support plate 434, the edge of the main side push plate 430 can avoid blocking the other inner walls of the main side flexible bag 416 to the opening of the main side flexible bag 416 during the movement, thereby ensuring smooth flow of fluid in the main side flexible bag 416.

[0053] 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 contraction or expansion direction of the secondary side flexible bag 422. A single cylindrical secondary side limiting plate 423 forms a cavity for accommodating the secondary side flexible bag 422. 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. The secondary side push plate 432 is movably arranged in the cavity formed by the extension of the secondary side limiting plate 423, and the secondary side limiting plate 423 is fixedly connected to the secondary side support plate 431. A secondary side opening 426 is provided on the secondary side support plate 431. The opening of the secondary-side flexible bag 422 is connected to the secondary-side through port 426 to guide the fluid discharged from the secondary-side flexible bag 422 to pass through the secondary-side support plate 431 .

[0054] When the driving cavity 411 is expanded due to the driving external force, the driving cavity 411 acts on the secondary push plate 432 through the transmission member 433 , so that the secondary push plate 432 moves closer to the secondary support plate 431 to compress the secondary flexible bag 422 .

[0055] exist Figure 1In the illustrated embodiment, when the driving chamber 411 is in a contracted state, the main side flexible bag 416 contracts and gathers between the main side push plate 430 and the main side support plate 434 in an arbitrary shape, and the main side push plate 430 is relatively close to the main side support plate 434. 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 416 through the main side port 413. Before the main side flexible bag 416 expands to contact the main side push plate 430, it expands in an arbitrary shape in the chamber formed by the main side limit plate 417. After the main side flexible bag 416 expands to contact the main side push plate 430, the main side push plate 430 is resisted by the driven cavity 421, and the main side flexible bag 416 expands in the direction close to the wall of the main side limit plate 417 under the obstruction of the main side push plate 430, until the main side flexible bag 416 is in contact with the main side limit plate 417 toward the outer wall of the main side limit plate 417. Thereafter, when the main side flexible bag 416 is further replenished with fluid, the cross-sectional shape of the main side flexible bag 416 in the direction perpendicular to the wall of the main side limit plate 417 remains basically unchanged due to the restriction of the main side limit plate 417, and the main side flexible bag 416 mainly expands in the direction parallel to the wall of the main side limit plate 417 and pushes the main side push plate 430 to move, so that the size of the driving cavity 411 in the direction parallel to the wall of the main side limit plate 417 gradually increases. When the primary side flexible bag 416 expands, it acts on the secondary side flexible bag 422 through the primary side push plate 430 , the transmission member 433 and the secondary side push plate 432 in sequence, so that the secondary side flexible bag 422 is compressed.

[0056] exist Figure 1 In the illustrated embodiment, for a plane perpendicular to the inner wall direction of the secondary side limit plate 423, the cross-sectional area of ​​the chamber formed by the secondary side limit plate 423 in the plane is the secondary side cross-sectional area. For a plane perpendicular to the inner wall direction of the main side limit plate 417, the cross-sectional area of ​​the chamber formed by the main side limit plate 417 in the plane is the main side cross-sectional area. Since the average value of the secondary side cross-sectional area is greater than the average value of the main side cross-sectional area, when the main side flexible bag 416 is expanded by injecting fluid, when the main side push plate 430 and the secondary side push plate 432 move the same distance, the space contraction amount of the inner cavity of the driven cavity 421 is greater than the space increase amount of the main side flexible bag 416. Therefore, during the expansion process 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 greater than the volume of the fluid injected into the main side flexible bag 416, so that the larger volume of fluid is discharged into the body 30 of the bathroom equipment 100.

[0057] Furthermore, a gap is provided between the main side push plate 430 and the inner wall of the chamber formed by the main side limit plate 417 to reduce the friction between the main side push plate 430 and the main side limit plate 417. In this embodiment, the main side support plate 434, the main side push plate 430 and the main side limit plate 417 cooperate to limit the expansion degree of the main side flexible bag 416 to prevent the main side flexible bag 416 from rupturing due to excessive expansion. Furthermore, the main side flexible bag 416 has toughness to prevent the main side flexible bag 416 from being continuously thinned due to excessive expansion and expansion, and eventually causing rupture. At the same time, the main side flexible bag 416 has toughness and can also limit the contraction degree of the driven chamber 421.

[0058] In some embodiments not shown in the figures, the main side push plate 430 may be connected to the main side limit plate 417 , and the main side support plate 434 may movably penetrate the cavity formed by the main side limit plate 417 .

[0059] In some embodiments not shown, the main side opening 413 may also be disposed on the main side limiting plate 417. A plurality of main side limiting plates 417 are distributed around the main side flexible bag 416 to form a chamber to limit the direction in which the main side flexible bag 416 expands or contracts.

[0060] In some embodiments not shown, the secondary opening 426 may also be disposed on the secondary limiting plate 423. A plurality of secondary limiting plates 423 are distributed around the secondary flexible bag 422 to form a chamber to limit the direction in which the secondary flexible bag 422 expands or contracts.

[0061] Furthermore, the present invention is not limited to using the main-side limiting plate 417 to limit the contraction and expansion direction of the main-side flexible bag 416 .

[0062] In some embodiments not shown in the figures, the driven component 42 is not limited to being composed of the secondary side flexible bag 422 and the secondary side limiting plate 423, and the driven component 42 may also adopt other structural forms.

[0063] The transmission assembly 43 is not limited to a single one or a combination of 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 allows the driven cavity 421 to be compressed as the driving cavity 411 expands.

[0064] 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.

[0065] 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 driving component, wherein the driving component forms a driving cavity with a variable space size for accommodating fluid through the main-side flexible bag, and the driving cavity obtains a driving external force from a fluid supply source; A driven component has a driven cavity for accommodating a fluid and having a variable space size; and a transmission assembly disposed between the driving assembly and the driven assembly, wherein when the driving chamber expands due to the driving external force provided by the fluid supply source, the transmission assembly transmits the driving external force to compress the driven chamber and reduce the pressure, thereby discharging the fluid in the driven chamber, and the compression space variation of the driven chamber is greater than the expansion space variation of the driving chamber; The transmission assembly includes a main side push plate, a transmission member and a main side support plate, and the transmission assembly also includes a secondary side push plate and a secondary side support plate, the transmission member is connected between the main side push plate and the secondary side push plate, and the main side flexible bag is located between the main side push plate and the main side support plate; when the main side flexible bag expands, the main side push plate moves away from the main side support plate, and the main side push plate transmits a driving external force to the driven assembly through the transmission member, so that the compression of the driven cavity becomes smaller; The driving assembly further includes a primary side limiting plate, the primary side flexible bag is accommodated in a cavity formed by the primary side limiting plate, the driven assembly includes a secondary side flexible bag and a secondary side limiting plate, the inner cavity of the secondary side flexible bag is used as the driven cavity, and the secondary side flexible bag is accommodated in a cavity formed by the secondary side limiting plate to limit the contraction or expansion direction of the secondary side flexible bag; For a plane perpendicular to the inner wall direction of the secondary side limiting plate, the cross-sectional area of ​​the chamber formed by the secondary side limiting plate in the plane is the secondary side cross-sectional area; for a plane perpendicular to the inner wall direction of the main side limiting plate, the cross-sectional area of ​​the chamber formed by the main side limiting plate in the plane is the main side cross-sectional area; since the average value of the secondary side cross-sectional area is greater than the average value of the main side cross-sectional area, when the main side flexible bag is expanded by injecting fluid, and the main side push plate and the secondary side push plate move the same distance, the spatial contraction of the inner cavity of the driven cavity is greater than the spatial increase of the main side flexible bag.

2. The flushing mechanism according to claim 1, characterized in that: The main side limit plate is connected to the main side support plate, and the main side push plate moves through the cavity formed by the main side limit plate. A gap is provided between the main side push plate and the inner wall of the cavity to reduce friction between the main side push plate and the main side limit plate.

3. The flushing mechanism according to claim 2, characterized in that: The main side limiting plate extends around the main side flexible bag to form a chamber; the main side supporting plate is connected to the main side limiting plate so that the chamber of the main side limiting plate forms a semi-closed structure; when the main side flexible bag expands, the main side pushing plate moves along the opening direction of the chamber of the main side limiting plate.

4. The flushing mechanism according to claim 2, characterized in that: The main-side flexible bag contracts or expands in any shape in the chamber formed by the main-side limiting plate.

5. The flushing mechanism according to claim 1, characterized in that: The opening of the main-side flexible bag is close to the main-side supporting plate to prevent the main-side pushing plate from passing through the opening of the main-side flexible bag during movement.

6. The flushing mechanism according to claim 1, characterized in that: The main-side flexible bag has toughness to prevent the main-side flexible bag from being over-expanded and ruptured.

7. A drainage device, characterized in that: include: A flushing mechanism as claimed in any one of claims 1 to 6 and a regulating component connected to the flushing mechanism; the regulating component is used to control the on-off 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 the compression of the driven chamber is completed or interrupted, the regulating component is also used to guide the fluid of the driving chamber to replenish the driven chamber.

8. A bathroom equipment, characterized in that: include: A drainage device as described in claim 7 and a 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 or the sewage outlet of the main body to flush the inner wall of the liquid pool or discharge the dirt from the sewage outlet.

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