Flushing mechanism and bathroom equipment

Abstract

The present invention relates to a flushing mechanism and bathroom equipment. The flushing mechanism comprises: a driving component, having a driving cavity with a variable space size for accommodating fluid; a driven component, having a driven cavity with a variable space size for accommodating fluid; and a transmission component, including a fulcrum, a lever rotatably connected to the fulcrum, a main transmission member and a slave transmission member movably connected to the lever; the main transmission member is connected to the driving component, and the slave transmission member is connected to the driven component; when the driving cavity expands along a first preset direction due to a driving external force, the main transmission member, the lever and the slave transmission member sequentially transmit the driving external force to cause the driven cavity to contract along a second preset direction to discharge the fluid, thereby realizing flushing work, effectively ensuring the stability of the fluid flow rate, and achieving good flushing effect. The fluid in the driven cavity is discharged by the driving tension obtained in the process of filling the driving cavity with fluid, and 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 invention relates to the technical field of bathroom equipment, in particular to a flushing mechanism and bathroom equipment. Background Art

[0002] The development trend of smart toilets is the same as that of mobile phones, with the cover becoming thinner and thinner, almost flat. After using the toilet, water needs to be injected to clean the inner wall or flush away dirt.

[0003] Traditional toilets with ceramic water tanks are placed at a high position. A certain amount of water is stored in the water tank in advance to ensure sufficient potential energy and water volume for flushing. This method requires the ceramic water tank to be placed at a high position, which is not conducive to the appearance design or internal structure layout of the toilet, resulting in a large overall space occupation. Traditional toilets without ceramic water tanks usually use tap water pressure to flush directly, which has high water pressure requirements and cannot guarantee cleaning and flushing in old communities. Summary of the invention

[0004] Based on this, it is necessary to provide a flushing mechanism and bathroom equipment to address the above technical problems.

[0005] A flushing mechanism, comprising:

[0006] A driving assembly having a driving cavity with a variable size for accommodating a fluid;

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

[0008] A transmission assembly comprises a fulcrum, a lever rotatably connected to the fulcrum, a main transmission member and a slave transmission member movably connected to the lever; the main transmission member is connected to the driving assembly, and the slave transmission member is connected to the driven assembly; when the driving chamber expands along a first preset direction due to a driven external force, the main transmission member, the lever and the slave transmission member sequentially transmit the driving external force to cause the driven chamber to contract along a second preset direction to discharge fluid, the contraction stroke of the driven chamber along the second preset direction is greater than the expansion stroke of the driving chamber along the first preset direction, and the contraction space change of the driven chamber is greater than the expansion space change of the driving chamber.

[0009] The flushing mechanism injects fluid into the driven chamber in advance. When the driving chamber is forced to expand along the first preset direction, the driven chamber is contracted along the second preset direction and the fluid is discharged through the coordinated transmission between the main transmission member, the lever and the slave transmission member of the transmission assembly, so as to realize the flushing work, effectively ensure the stability of the fluid flow rate, and have a good flushing effect. The fluid in the driven chamber is discharged through the driving tension obtained in the process of filling the fluid in the driving chamber. 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 and effectively reducing the overall space occupied by the bathroom equipment. In addition, since the stroke amount of the driven chamber contracting along the second direction is greater than the stroke amount of the driving chamber expanding along the first preset direction, the stroke amount is amplified, so that the contraction space change of the driven chamber is greater than the expansion space change of the driving chamber. Therefore, the flow rate of the fluid discharged from the driven chamber is greater than the flow rate of the fluid injected into the driving chamber, so that the flow rate of the discharged fluid is amplified, further ensuring the flushing effect.

[0010] In one embodiment, the connection point between the main transmission member and the lever is an active point, the connection point between the slave transmission member and the lever is a driven point, and the length of the force arm from the driven point to the fulcrum is greater than the length of the force arm from the active point to the fulcrum.

[0011] In one embodiment, the active point is located between the fulcrum and the slave transmission member.

[0012] In one embodiment, the fulcrum is located between the active point and the passive point.

[0013] In one embodiment, the driving chamber and the driven chamber are arranged relative to each other in the horizontal direction, the fulcrum is arranged between the driving chamber and the driven chamber, the main transmission member is arranged directly below the driving chamber, and the slave transmission member is arranged directly below the driven chamber.

[0014] In one embodiment, the driving assembly includes a main housing and a main push plate accommodated in the main housing and capable of moving along the first preset direction, the driving chamber is arranged in the space enclosed by the main push plate and the main housing, and the main transmission member is connected to the main push plate.

[0015] In one of the embodiments, a main opening is provided on the main housing, one end of the main transmission member is movably connected to the lever, and the other end of the main transmission member extends from the main opening into the main housing and is connected to the main push plate.

[0016] In one embodiment, the driving assembly includes a slave housing and a slave push plate movably disposed in the slave housing, the driven cavity is located in a space enclosed by the slave push plate and the slave housing, and the slave transmission member is connected to the slave push plate.

[0017] In one of the embodiments, a slave opening is provided on the slave box, one end of the slave transmission member is movably connected to the lever, and the other end of the slave transmission member extends from the slave opening into the slave box and is connected to the slave push plate.

[0018] A bathroom device comprises the above-mentioned flushing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a flushing mechanism according to an embodiment of the present invention, wherein the flushing mechanism is in a state of being about to perform a flushing operation;

[0020] Figure 2 for Figure 1 The structural schematic diagram of the flushing mechanism is shown, in which the flushing mechanism is in a state of about to complete the flushing work.

[0021] The meanings of the symbols in the accompanying drawings are:

[0022] Driving assembly 10, driving cavity 11, liquid passage 12, main housing 13, main opening 130, main push plate 14, main flexible bag 15, driven assembly 20, driven cavity 21, liquid discharge port 22, slave housing 23, slave opening 230, slave push plate 24, slave flexible bag 25, transmission assembly 30, fulcrum 31, lever 32, main transmission member 33, active point 330, slave transmission member 34, slave point 340. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] In addition, the terms "first" and "from" 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 "from" 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.

[0026] 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.

[0027] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the subordinate feature may mean that the first and subordinate features are in direct contact, or the first and subordinate features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the subordinate feature may mean that the first feature is directly above or obliquely above the subordinate feature, or simply means that the first feature is higher in level than the subordinate feature. The first feature being "below", "below" and "below" the subordinate feature may mean that the first feature is directly below or obliquely below the subordinate feature, or simply means that the first feature is lower in level than the subordinate feature.

[0028] 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.

[0029] Please refer to Figure 1 and Figure 2, is a flushing mechanism of an embodiment of the invention, which is applied to bathroom equipment. In this embodiment, the bathroom equipment is a toilet. The flushing mechanism includes a driving component 10, a driven component 20 and a transmission component 30. The driving component 10 has a driving chamber 11 for accommodating a fluid and having a variable space size. The driven component 20 has a driven chamber 21 for accommodating a fluid and having a variable space size. The transmission component 30 includes a fulcrum 31, a lever 32 rotatably connected to the fulcrum 31, a main transmission member 33 and a slave transmission member 34 movably connected to the lever 32. The main transmission member 33 is connected to the driving component 10, and the slave transmission member 34 is connected to the driven component 20. When the driving chamber 11 expands along the first preset direction F1 due to the driving external force, the main transmission member 33, the lever 32 and the slave transmission member 34 transmit the driving external force in sequence to cause the driven chamber 21 to contract along the second preset direction F2 to discharge the fluid, and the contraction stroke H2 of the driven chamber 21 along the second direction F2 is greater than the expansion stroke H1 of the driving chamber 11 along the first preset direction F1, so that the contraction space change of the driven chamber 21 is greater than the expansion space change of the driving chamber 11.

[0030] In this embodiment, the first preset direction F1 is parallel to and opposite to the second preset direction F2.

[0031] The flushing mechanism can fully expand the internal space of the driven chamber 21 by injecting fluid into the driven chamber 21 in advance, and simultaneously evacuate the fluid in the driving chamber 11 in advance, so that the driving chamber 11 is in a contracted state. Figure 1 When the flushing operation is performed, the fluid supply source generating the driving external force injects the fluid into the contracted driving chamber 11. The driving chamber 11 expands along the first preset direction F1 due to the filling of the fluid. When the driving chamber 11 expands along the first preset direction F1, the main transmission member 33 is driven to move along the first preset direction F1. The main transmission member 33 drives the lever 32 to rotate around the fulcrum 31 along the first rotation direction. In this embodiment, the first rotation direction is clockwise. When the lever 32 rotates, it drives the slave transmission member 34 to move along the second preset direction F2. The slave transmission member 34 drives the driven chamber 21 to contract along the second preset direction F2, so that the fluid in the driven chamber 21 is discharged, so as to flush the parts of the bathroom equipment that need to be flushed, that is, to achieve the flushing operation, such as Figure 2 The contraction stroke H2 of the driven cavity 21 along the second direction F2 is greater than the expansion stroke H1 of the driving cavity 11 along the first preset direction F1, so that the contraction space variation of the driven cavity 21 is greater than the expansion space variation of the driving cavity 11.

[0032] It should be pointed out that the above-mentioned "expansion space variation of the driving chamber 11" is the space increase amount of the driving chamber 11 expanding along the first preset direction F1, that is, the volume amount of the fluid filled in the driving chamber 11. The "contraction space variation of the driven chamber 21" is the space reduction amount of the driven chamber 21 contracting along the second preset direction F2, that is, the volume amount of the fluid discharged from the driven chamber 21. Therefore, "the contraction space variation of the driven chamber 21 is greater than the expansion space variation of the driving chamber 11" means that the volume amount of the fluid discharged from the driven chamber 21 is greater than the volume amount of the fluid filled in the driving chamber 11. Since the space variation of the driven chamber 21 and the driving chamber 11 is synchronous, it means that the expansion space variation of the driving chamber 11 and the contraction space variation of the driven chamber 21 are carried out in the same time. Therefore, it can be obtained that in unit time, the volume amount of the fluid discharged from the driven chamber 21 is greater than the volume amount of the fluid filled in the driving chamber 11, that is, the fluid flow rate discharged from the driven chamber 21 is greater than the fluid flow rate supplemented by the driving chamber 11.

[0033] After the flushing mechanism completes the flushing work, that is, after the contraction and drainage work of the driven chamber 21 is completed, it is necessary to replenish the fluid into the driven chamber 21 and drain the fluid in the driving chamber 11. Figure 2 , when the fluid replenishment operation is performed, the fluid supply source generating the driving external force replenishes the fluid to the driven chamber 21. When the driven chamber 21 expands in the direction opposite to the second preset direction F2 due to the replenished fluid, the slave transmission member 34 is driven to move in the direction opposite to the second preset direction F2. The slave transmission member 34 drives the lever 32 to rotate around the fulcrum 31 in the second rotation direction. The second rotation direction is opposite to the first rotation direction. In this embodiment, the second rotation direction is counterclockwise. When the lever 32 rotates, it drives the main transmission member 33 to move in the direction opposite to the first preset direction F1. The main transmission member 33 drives the driving chamber 11 to contract in the direction opposite to the first preset direction F1, so that the fluid in the driving chamber 11 is discharged. And the stroke amount of the driven chamber 21 expanding in the direction opposite to the second preset direction F2 is greater than the stroke amount of the driving chamber 11 contracting in the direction opposite to the first preset direction F1, so that the expansion space change amount of the driven chamber 21 is greater than the contraction space change amount of the driving chamber 11.

[0034] In some embodiments, the fluid supply source is the output of the municipal tap water pipeline, and the fluid injected into the driving chamber 11 or the driven chamber 21 is tap water. In other embodiments, the fluid supply source may also be the output of the municipal tap water pipeline after passing through a pressure pump, or may be the pumping output of the external pump body of the bathroom equipment to the external water storage. In addition, the "supply source" that provides the expansion force to the driving chamber 11 during the flushing process and the "supply source" that provides the expansion force to the driven chamber 21 during the process of replenishing the fluid to the driven chamber 21 may be the same or different.

[0035] The above-mentioned flushing mechanism injects fluid into the driven chamber 21 in advance. When the driving chamber 11 is forced to expand along the first preset direction F1, the driven chamber 21 is contracted along the second preset direction F2 and the fluid is discharged through the coordinated transmission between the main transmission member 33, the lever 32 and the slave transmission member 34 of the transmission assembly 30, thereby realizing the flushing work, effectively ensuring the stability of the fluid flow rate, and achieving good flushing effect. The driving tension obtained by the driving chamber 11 during the fluid filling process causes the fluid in the driven chamber 21 to be discharged. 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 and effectively reducing the overall space occupied by the bathroom equipment.

[0036] In addition, since the stroke H2 of the driven chamber 21 contracting along the second direction F2 is greater than the stroke H1 of the driving chamber 11 expanding along the first preset direction F1, the stroke is amplified so that the contraction space change of the driven chamber 21 is greater than the expansion space change of the driving chamber 11. Therefore, the flow rate of the fluid discharged from the driven chamber 21 is greater than the flow rate of the fluid injected into the driving chamber 11. It can be understood that injecting less fluid into the driving chamber 11 can cause more fluid to be discharged from the driven chamber 21, thereby amplifying the flow rate of the discharged fluid and further ensuring the flushing effect.

[0037] Please continue to refer to Figure 1 , let the expansion space variation of the driving chamber 11 be V1, the average cross-sectional area of ​​the cross section of the driving chamber 11 be S1, the cross section of the driving chamber 11 is the cross section of the driving chamber 11 perpendicular to the first preset direction F1, and the expansion stroke of the driving chamber 11 along the first preset direction F1 is H1, V1 = S1 × H1. Let the contraction space variation of the driven chamber 21 be V2, the average cross-sectional area of ​​the cross section of the driven chamber 21 is S2, the cross section of the driven chamber 21 is the cross section of the driven chamber 21 perpendicular to the second preset direction F2, and the contraction stroke of the driven chamber 21 along the second direction F2 is H2, V2 = S2 × H2. Therefore, it should be noted that the above-mentioned “so that the contraction stroke of the driven chamber 21 along the second preset direction F2 is greater than the expansion stroke of the driving chamber 11 along the first preset direction F1, and further so that the contraction space change of the driven chamber 21 is greater than the expansion space change of the driving chamber 11” means: taking “the contraction stroke of the driven chamber 21 along the second preset direction F2 is greater than the expansion stroke of the driving chamber 11 along the first preset direction F1” as the main factor to make “the contraction space change of the driven chamber 21 is greater than the expansion space change of the driving chamber 11”, that is, the influence of the relationship between the average cross-sectional area of ​​the cross section of the driving chamber 11 and the average cross-sectional area of ​​the cross section of the driven chamber 21 on the difference between the contraction space change of the driven chamber 21 and the expansion space change of the driving chamber 11 is not considered.

[0038] In some embodiments, the average cross-sectional area of ​​the cross section of the driving chamber 11 is equal to the average cross-sectional area of ​​the cross section of the driven chamber 21, that is, S1=S2, to ensure that when the contraction stroke of the driven chamber 21 along the second preset direction F2 is greater than the expansion stroke of the driving chamber 11 along the first preset direction F1, the contraction space change of the driven chamber 21 can be greater than the expansion space change of the driving chamber 11, that is, V2>V1, so that the flow rate of the fluid discharged from the driven chamber 21 is greater than the flow rate of the fluid injected into the driving chamber 11.

[0039] In some other embodiments, the average cross-sectional area of ​​the cross section of the driven chamber 21 is greater than the average cross-sectional area of ​​the cross section of the driving chamber 11, that is, S2>S1, so that the degree to which the contraction space change of the driven chamber 21 is greater than the expansion space change of the driving chamber 11 is further amplified, thereby achieving further amplification of the flow rate of the discharged fluid.

[0040] Furthermore, the cross-sectional area of ​​the cross section of the driving cavity 11 remains substantially unchanged along the first preset direction F1 , and the cross-sectional area of ​​the cross section of the driven cavity 21 remains substantially unchanged along the second preset direction F2 .

[0041] In some embodiments, there are multiple driven chambers 21, and the multiple driven chambers 21 are arranged in sequence along the first preset direction F1. When the driving chamber 11 is expanded by the driving external force, the sum of the contraction space changes of the multiple driven chambers 21 is greater than the expansion space change of the driving chamber 11, thereby realizing multi-stage amplification of the discharge fluid flow rate, so that the flushing effect is better.

[0042] The driving assembly 10 is provided with a fluid port 12 connected to the driving cavity 11 . It can be understood that the fluid supply source injects fluid into the driving cavity 11 through the fluid port 12 , and when the driving cavity 11 contracts, the fluid in the driving cavity 11 is discharged from the fluid port 12 .

[0043] The driving assembly 10 includes a main housing 13 and a main push plate 14. The main push plate 14 is accommodated in the main housing 13 and can move along a first preset direction F1. The driving chamber 11 is located in a space enclosed by the main push plate 14 and the main housing 13. A main opening 130 is provided on the main housing 13. The main opening 130 is provided at one end of the main housing 13 and communicates with the inside of the main housing 13. The liquid passage 12 is provided on the main housing 13 or the main push plate 14. Specifically in this embodiment, the liquid passage 12 is provided at one end of the main housing 13 away from the main opening 130, that is, the liquid passage 12 is provided at the top of the main housing 13, and the main opening 130 is provided at the bottom of the main housing 13. It can be understood that when the driving chamber 11 expands along the first preset direction F1 due to the filling fluid, the main push plate 14 is pushed to move in the first preset direction F1 in the main box body 13; similarly, when the driven chamber 21 expands along the direction opposite to the second preset direction F2 due to the supplementary fluid, the main push plate 14 is pushed to move in the main box body 13 in the direction opposite to the first preset direction F1 through the transmission assembly 30.

[0044] In this embodiment, the driving assembly 10 further includes a main flexible bag 15, which is accommodated in the main housing 13, the inner cavity of the main flexible bag 15 is the driving cavity 11, and the opening of the main flexible bag 15 is arranged corresponding to the liquid passage 12. Further, there is a gap between the circumferential edge of the main push plate 14 and the inner side wall of the main housing 13 to prevent the main push plate 14 from colliding with the inner wall of the main housing 13 when the main push plate 14 moves in the main housing 13 to generate friction, so as to ensure the smooth movement of the main push plate 14 in the main housing 13, and at the same time, when the lever 32 rotates, the main push plate 24 can generate a preset amplitude of deflection in the main housing 13. In other embodiments, a slave flexible sleeve can be used to replace the slave flexible bag 25, and the two ends of the slave flexible sleeve are respectively sealed and connected to the edge of the slave push plate 24 and the inner wall of the slave housing 23 to form a slave cavity 21 with a variable space size, and the slave flexible sleeve is a soft rubber sleeve or a deformable bellows.

[0045] The driven component 20 is provided with a fluid inlet and a fluid discharge port 22 connected to the driven chamber 21. It can be understood that the fluid supply source replenishes fluid into the driven chamber 21 through the fluid inlet, and when the driven chamber 21 contracts, the fluid in the driven chamber 21 is discharged from the fluid discharge port 22.

[0046] The driven assembly 20 includes a slave housing 23 and a slave push plate 24. The slave housing 23 is provided with a slave opening 230. The main opening 130 is provided at one end of the slave housing 23 and communicates with the main housing 13. The slave push plate 24 is accommodated in the slave housing 23 and can move along the second preset direction F2. The driven cavity 21 is located in the space surrounded by the slave push plate 24 and the slave housing 23. The liquid inlet and the liquid discharge port 22 are provided on the slave housing 23 or the slave push plate 24. Specifically in this embodiment, the liquid inlet and the liquid discharge port 22 are both provided at one end of the slave housing 23 away from the slave opening 230. The slave transmission member 34 is connected to the slave push plate 24, that is, the liquid inlet and the liquid discharge port 22 are both provided at the top of the slave housing 23, and the slave opening 230 is provided at the bottom of the slave housing 23. It can be understood that when the driving chamber 11 expands along the first preset direction F1 due to the filling fluid, the transmission assembly 30 pushes the push plate 24 to move in the second preset direction F2 in the slave box 23, so that the driven chamber 21 contracts along the second preset direction F2, and then the fluid in the driven chamber 21 is discharged. Similarly, when the driven chamber 21 expands in the direction opposite to the second preset direction F2 due to the supplementary fluid, the push plate 24 is pushed to move in the slave box 23 in the direction opposite to the second preset direction F2.

[0047] In this embodiment, the driven component 20 further includes a slave flexible bag 25, which is accommodated in the slave box 23, and the inner cavity of the slave flexible bag 25 is the driven cavity 21, and the opening of the slave flexible bag 25 is arranged corresponding to the discharge port 22. Further, there is a gap between the circumferential edge of the slave push plate 24 and the inner side wall of the slave box 23 to prevent the slave push plate 24 from colliding with the inner wall of the slave box 23 when the slave push plate 24 moves to generate friction, so as to ensure the smooth movement of the slave push plate 24 in the slave box 23, and at the same time, when the lever 32 rotates, the slave push plate 24 can generate a preset amplitude of deflection in the slave box 23. In other embodiments, the slave flexible sleeve can be used to replace the slave flexible bag 25, and the two ends of the slave flexible sleeve are respectively sealed and connected to the edge of the slave push plate 24 and the inner wall of the slave box 23 to form a slave cavity 21 with a variable space size, and the slave flexible sleeve is a soft rubber sleeve or a deformable bellows.

[0048] Please refer to Figure 1 For ease of understanding, in this embodiment, the connection point between the main transmission member 33 and the lever 32 is assumed to be the active point 330, and the connection point between the slave transmission member 34 and the lever 32 is assumed to be the driven point 340. The lever arm length L2 from the driven point 340 to the fulcrum 31 is greater than the lever arm length L1 from the active point 330 to the fulcrum 31, that is, L2>L1. When the driving cavity 11 expands along the first preset direction F1 and the driven cavity 21 contracts along the second preset direction F2, the lever 32 rotates around the fulcrum 31. According to the principle of similar triangles, the ratio between the displacement K1 of the active point 330 in the first preset direction F1 and the displacement K2 of the driven point 340 in the second preset direction F2 is equal to the ratio between the lever arm length L1 from the active point 330 to the fulcrum 31 and the lever arm length L2 from the driven point 340 to the fulcrum 31, that is, K1 / K2=L1 / L2. The stroke H1 of the driving chamber 11 expanding along the first preset direction F1 is equal to the displacement K1 of the active point 330 moving in the first preset direction F1, that is, H1=K1; the stroke H2 of the driven chamber 21 contracting along the second direction F2 is equal to the displacement K2 of the driven point 340 moving in the second preset direction F2, that is, H2=K2. And because K1 / K2=L1 / L2, H1 / H2=L1 / L2. Therefore, when L2>L1, H2>H1, that is, the stroke H2 of the driven chamber 21 contracting along the second direction F2 is greater than the stroke H1 of the driving chamber 11 expanding along the first preset direction F1, and thus the contraction space variation V2 of the driven chamber 21 is greater than the expansion space variation V1 of the driving chamber 11, that is, the flow rate of the fluid discharged from the driven chamber 21 is greater than the flow rate of the fluid injected into the driving chamber 11.

[0049] The arm length L2 from the driven point 340 to the fulcrum 31 is 1.5 times or more of the arm length L1 from the active point 330 to the fulcrum 31, that is, L2≥1.5L1, so that the flow rate of the fluid discharged through the driven cavity 21 can be amplified better and the flushing effect can be better.

[0050] In some embodiments, the main transmission member 33 is a strip rod extending along the first preset direction F1, and the slave transmission member 33 is a strip rod extending along the second preset direction F2, so that the expansion stroke H1 of the driving chamber 11 along the first preset direction F1 is converted into the contraction stroke H2 of the driven chamber 21 along the second direction F2 in a maximized form.

[0051] In this embodiment, the fulcrum 31 is disposed between the active point 330 and the driven point 340, that is, the fulcrum 31 is disposed between the driving cavity 11 and the driven cavity 21. Specifically, the driving cavity 11 and the driven cavity 21 are disposed relatively spaced apart in the horizontal direction, the fulcrum 31 is disposed between the driving cavity 11 and the driven cavity 21, the main transmission member 33 is disposed directly below the driving cavity 11, and the slave transmission member 34 is disposed directly below the driven cavity 21.

[0052] In other embodiments, the active point 330 is disposed between the fulcrum 31 and the driven point 340 , that is, the fulcrum 31 is disposed on a side of the driving cavity 11 away from the driven cavity 21 .

[0053] In this embodiment, the lever 32 is hinged to the fulcrum 31, which effectively ensures the stability of the lever 32 rotating around the fulcrum 31. There is a certain friction between the lever 32 and the fulcrum 31 to prevent the lever 32 from rotating without external force.

[0054] One end of the main transmission member 33 is hinged to the lever 32, and there is a certain friction force between the main transmission member 33 and the lever 32, ensuring that when the lever 32 does not move, the transmission rod 33 and the slave push plate 24 will not freely rotate relative to the lever 32 and fall over. The other end of the main transmission member 33 extends from the main opening 130 into the main box body 13 and is connected to the side of the main push plate 14 away from the drive chamber 11. Further, the main transmission member 33 is connected to the middle part of the main push plate 14, that is, the main transmission member 33 and the main push plate 14 form a T shape. Furthermore, the main transmission member 33 and the main push plate 14 are integrally formed, which effectively ensures the stability of the connection between the main transmission member 33 and the main push plate 14.

[0055] One end of the slave transmission member 34 is hinged to the lever 32, and there is a certain friction between the slave transmission member 34 and the lever 32, ensuring that when the lever 32 does not move, the transmission rod 33 and the slave push plate 24 will not freely rotate relative to the lever 32 and fall over. The other end of the slave transmission member 34 extends from the opening 230 into the slave housing 23 and is connected to the side of the slave push plate 24 that is away from the driven cavity 21. Further, the slave transmission member 34 is connected to the middle of the slave push plate 24, that is, the slave transmission member 34 and the slave push plate 24 form a T shape. Furthermore, the slave transmission member 34 and the slave push plate 24 are integrally formed, which effectively ensures the stability of the connection between the slave transmission member 34 and the slave push plate 24.

[0056] The present invention also provides a bathroom device, including the above-mentioned flushing mechanism and a body connected to the flushing mechanism. Specifically, the body is provided with a liquid pool, and a sewage outlet is provided at the bottom of the liquid pool. The fluid discharged from the driven chamber 21 of the flushing mechanism is output to the liquid pool or the sewage outlet of the body to flush the inner wall of the liquid pool or discharge the dirt from the sewage outlet. In this embodiment, the bathroom device is a toilet. It can be understood that in other embodiments, the bathroom device can also be other equipment that needs to be flushed, such as a wash basin, a bathtub, etc.

[0057] Specifically, a washing waterway is formed inside the body, and the fluid discharged from the discharge port 22 of the driven chamber 21 can enter the washing waterway, so as to flow from the upper side of the liquid pool downward to the liquid pool, thereby realizing uniform flushing of the inner wall of the liquid pool from top to bottom. In addition, a jetting waterway is formed inside the body, and the fluid discharged from the discharge port 22 of the driven chamber 21 can enter the jetting waterway, and under the guidance of the jetting waterway, enter the liquid pool and pass through the sewage outlet to carry the sewage out.

[0058] In some embodiments, the bathroom equipment includes a control module, which is used to adjust and control the water injection or drainage in the driving chamber 11 and the driven chamber 21. Specifically, the control module includes a first control valve, a second control valve, a liquid level detection member, a contraction detection member and a control switch. The first control valve is connected between the driving chamber 11 and the fluid supply source, and is also connected between the driving chamber 11 and the driven chamber 21. It can be understood that the first control valve has three ports, the first port of the first control valve is connected to the fluid supply source, the second port of the first control valve is connected to the liquid port 12 of the driving chamber 11, and the third port of the first control valve is connected to the liquid replenishment port of the driven chamber 21. The liquid level detection member is arranged in the driven chamber 21 to detect the liquid level height in the driven chamber 21. The second control valve is connected between the driven chamber 21 and the fluid supply source, and switches the flow channel between the driven chamber 21 and the fluid supply source according to the feedback of the liquid level detection member. The contraction detection member is used to detect the contraction degree of the driven chamber 21. The control switch is connected to the first control valve, and is also electrically connected to the contraction detection member. The control switch is used to adjust the passage structure inside the first control valve according to feedback from the contraction detection member.

[0059] Before the flushing operation is performed, the driving chamber 11 is in a contracted state. The liquid level in the driven chamber 21 is at a predetermined height, and the second control valve blocks the passage between the driven chamber 21 and the fluid supply source according to the liquid level detection result of the liquid level detection member, preventing the fluid from being replenished into the driven chamber 21. At this time, the first port and the second port in the first control valve are blocked, preventing the fluid supply source from injecting fluid into the driving chamber 11.

[0060] When the flushing operation is started, the control switch is triggered to control the first control valve, so that the first port and the second port are connected inside the first control valve, and the second port and the third port are cut off inside the first control valve, that is, the fluid supply source is connected to the driving chamber 11, and the driving chamber 11 is isolated from the driven chamber 21. The fluid output from the fluid supply source is injected into the driving chamber 11 through the first control valve, and the driving chamber 11 gradually expands. Through the transmission of the transmission assembly 30, the fluid in the driven chamber 21 flows out to the washing waterway and the injection waterway after passing through the discharge port 22, so as to wash the inner wall surface of the body and flush away the dirt at the sewage outlet.

[0061] During the drainage process of the driven chamber 21, as the fluid outputted by the fluid supply source is injected into the driving chamber 11, the driven chamber 21 gradually contracts until it contracts to a preset degree, and the drainage process of contracting the driven chamber 21 ends. At this time, the contraction detection member is triggered, and the contraction detection member triggers the control switch to reset. The resetting of the control switch can cut off the first port and the second port inside the first control valve, thereby blocking the fluid supply source from injecting fluid into the driving chamber 11, and making the first port of the control switch communicate with the third port, that is, making the driving chamber 11 communicate with the driven chamber 21.

[0062] After the driven chamber 21 is drained, the remaining fluid in the driven chamber 21 forms a thrust on the inner wall of the driven chamber 21 under the action of its own gravity, causing the driven chamber 21 to expand slightly. The expansion of the driven chamber 21 will cause the liquid level of the remaining fluid in the driven chamber 21 to drop. When the liquid level in the driven chamber 21 is lower than the predetermined height value, the liquid level detection member triggers the second control valve, so that the passage between the driven chamber 21 and the fluid supply source in the second control valve is opened, and the fluid supply source continues to inject fluid into the driven chamber 21. Under the action of the fluid injected by the fluid supply source, the driven chamber 21 further expands and forces the drive chamber 11 to contract through the transmission assembly 30 to discharge the fluid. At this time, since the first port and the second port in the first control valve are blocked, the fluid supply source is prevented from injecting fluid into the drive chamber 11, and the first port and the third port are connected, so that the fluid discharged from the drive chamber 11 enters the driven chamber 21. In this way, the drive chamber 11 can also serve as a supply source during the fluid replenishment operation of the driven chamber 21. When the liquid level in the driven chamber 21 reaches a predetermined height, the liquid replenishment operation of the driven chamber 21 is completed, and the driving chamber 11 is also in a fully contracted state before starting the flushing work.

[0063] It should be pointed out that the liquid level detection member can be a float, which can float up with the increase of the liquid level in the driven chamber 21, and fall with the decrease of the liquid level, and can float and rise in a specific direction, so that when it rises and floats up, the valve port of the second control valve is accurately matched and blocked to block the communication between the driven chamber 21 and the fluid supply source and the driving chamber 11, and when the liquid level drops, the liquid level detection member can drop to open the valve port of the second control valve to achieve the communication between the driven chamber 21 and the fluid supply source and the driving chamber 11. In other embodiments, the liquid level detection member can also be any one or more components that can assist in detecting or determining the liquid level height, such as a mechanical float, a Hall sensor, an optical sensor, a water pressure sensor, a current sensor, etc.

[0064] Specifically, the contraction detection member is a trigger member arranged in the driven chamber 21. The inner wall of the driven chamber 21 contracts and deforms, and can abut against the contraction detection member when contracted to the maximum extent, so that the contraction detection member further acts on the control switch, and the control switch acts on the valve core of the first control valve mechanically or electrically, so that the valve core switches and connects the three ports on the valve body of the first control valve. In addition, the control switch can also be operated or reset by manually operating the button or handle on the control switch.

[0065] 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.

[0066] 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 assembly having a driving cavity with a variable space size for accommodating a fluid, the driving assembly comprising a main box, a main push plate accommodated in the main box and capable of moving along a first preset direction, a slave box, and a slave push plate movably arranged in the slave box; A driven component has a driven cavity for accommodating a fluid and having a variable space size; and The transmission assembly comprises a fulcrum, a lever rotatably connected to the fulcrum, a main transmission member and a slave transmission member movably connected to the lever; The main transmission member is connected to the main push plate, and the slave transmission member is connected to the slave push plate; When the driving chamber expands along a first preset direction due to a driving external force, the main transmission member, the lever and the slave transmission member sequentially transmit the driving external force to cause the driven chamber to contract along a second preset direction to discharge fluid, the contraction stroke of the driven chamber along the second preset direction is greater than the expansion stroke of the driving chamber along the first preset direction, and the contraction space variation of the driven chamber is greater than the expansion space variation of the driving chamber; In which, the driving assembly also includes a main flexible bag and a slave flexible bag, the main flexible bag is accommodated in the main box body, the inner cavity of the main flexible bag is the driving cavity, and a gap is provided between the circumferential edge of the main push plate and the inner side wall of the main box body to prevent the main push plate from colliding and rubbing with the inner wall of the main box body when moving; the slave flexible bag is accommodated in the slave box body, the inner cavity of the slave flexible bag is the driven cavity, and a gap is provided between the circumferential edge of the slave push plate and the inner side wall of the slave box body to prevent the slave push plate from colliding and rubbing with the inner wall of the slave box body when moving; when the lever rotates, the main push plate can generate a preset amplitude of deflection in the main box body, and the slave push plate can generate a preset amplitude of deflection in the slave box body.

2. The flushing mechanism according to claim 1, characterized in that: The connection point between the main transmission member and the lever is an active point, the connection point between the slave transmission member and the lever is a driven point, and the length of the force arm from the driven point to the fulcrum is greater than the length of the force arm from the active point to the fulcrum.

3. The flushing mechanism according to claim 2, characterized in that: The active point is arranged between the fulcrum and the slave transmission member.

4. The flushing mechanism according to claim 2, characterized in that: The fulcrum is arranged between the active point and the passive point.

5. The flushing mechanism according to claim 4, characterized in that: The driving cavity and the driven cavity are arranged relatively spaced apart in a horizontal direction, and the fulcrum is arranged between the driving cavity and the driven cavity.

6. The flushing mechanism according to claim 1, characterized in that: The driving chamber is arranged in a space enclosed by the main push plate and the main box body.

7. The flushing mechanism according to claim 6, characterized in that: The main box body is provided with a main opening, one end of the main transmission member is movably connected to the lever, and the other end of the main transmission member extends from the main opening into the main box body and is connected to the main push plate.

8. The flushing mechanism according to claim 1, characterized in that: The driven chamber is located in a space enclosed by the slave push plate and the slave housing.

9. The flushing mechanism according to claim 8, characterized in that: The slave box body is provided with a slave opening, one end of the slave transmission member is movably connected to the lever, and the other end of the slave transmission member extends from the slave opening into the slave box body and is connected to the slave push plate.

10. A bathroom equipment, characterized in that: It comprises a flushing mechanism as described in any one of claims 1 to 9.

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