CN115306006A - Flushing mechanism, drainage device and bathroom equipment - Google Patents

Abstract

The invention relates to a flushing mechanism, a drainage device and sanitary equipment, wherein the flushing mechanism comprises: drive assembly, driven subassembly and transmission assembly. The drive assembly includes a primary side housing, a drive plate, and a primary side flexible member. The driving plate movably penetrates through the inner cavity of the main side shell. Along the moving direction of the active plate relative to the main side shell, the active plate and the main side shell are connected to different parts of the main side flexible piece in a sealing mode so as to form a driving cavity with a variable space size in a matching mode. The driven assembly is provided with a driven cavity which is used for containing fluid and has a variable space size. The transmission assembly is arranged between the driving plate and the driven assembly. When the driving cavity is expanded by the driving external force, the driving plate exits from the inner cavity of the main side shell and transmits the driving external force through the transmission assembly to enable the compression of the driven cavity to be reduced so as to discharge fluid, and the expansion space variation of the driving cavity is smaller than the compression space variation of the driven cavity. The driving plate can move along with the expansion of the driving plate at any position, and the driven assembly compresses and discharges fluid through the transmission assembly.

Description

Flushing mechanism, drainage device and bathroom equipment

Technical Field

The invention relates to sanitary equipment, in particular to a flushing mechanism, a drainage device and sanitary equipment.

Background

Some sanitary installations require water injection after use to clean the inner walls or to flush away dirt. For example, toilets require a flow of water to flush clean or flush away the waste after use. The different flow of rivers of pouring into in the unit interval, then the effect to the washing or towards dirty of closestool surface is different, and it is generally that the more big water flow is poured into in the unit interval, and the inner wall of sanitary ware can be washed out more cleanly, or can more reliably wash out the filth from the drain completely. In the existing solutions, a certain amount of water is generally stored in a water tank in advance, a venturi structure is arranged in the water tank, and when water injection with water pressure passes through the water tank from the venturi structure, negative pressure is formed in the venturi structure and the stored water in the water tank is sucked out. However, due to the limitation of the 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 end with the venturi structure or the bottom side of the water tank, so that the internal space layout of the sanitary ware is limited.

Disclosure of Invention

In view of the above, it is necessary to provide a flushing mechanism, a drain device and a sanitary device, which are capable of limiting the flow of fluid from the bottom of a water storage container in a conventional sanitary device and limiting the internal layout of the sanitary device.

A flush mechanism, comprising:

the driving assembly comprises a main side shell, a driving plate and a main side flexible piece; the driving plate movably penetrates through the inner cavity of the main side shell; the driving plate and the main side shell are connected to different parts of the main side flexible piece in a sealing mode along the moving direction of the driving plate relative to the main side shell, and a driving cavity with a variable space size is formed by matching the driving plate and the main side shell;

the driven assembly is provided with a driven cavity which is used for containing fluid and has a variable space size; and

and a transmission assembly disposed between the driving plate and the driven assembly, wherein when the driving cavity is expanded by a driving external force provided by a fluid supply source, the driving plate exits the inner cavity of the main side housing and the driving external force is transmitted through the transmission assembly to make the driven cavity compressed and smaller to discharge the fluid of the driven cavity, and the compression space variation of the driven cavity is greater than the expansion space variation of the driving cavity.

According to the flushing mechanism, because the fluid injected by the fluid supply source is retained in the expanded driving cavity, the driving plate can move along with the expansion of the driving at any position, and the driven assembly compresses and discharges the fluid through the transmission assembly, the angle of the main side shell for the fluid supply source does not need to be limited, and the flushing mechanism can flexibly adapt to the spatial layout in the sanitary ware. The drive chamber is formed by main side casing, drive board and main side flexible member sealing connection, and the main side flexible member is owing to possess flexible easy shrink or expansion deformation, makes things convenient for the internal face of drive chamber wholly to keep intact, is favorable to strengthening the leakproofness of drive chamber, avoids the fluid leakage in the drive chamber. Because the main side flexible member is self deformation in the contraction or expansion process, the friction with other parts is smaller, and the main side flexible member is made of flexible materials, the main side flexible member is not easy to damage in the working process, and the service life is longer.

In one embodiment, the primary side flexible member is cylindrical; one end of the main side flexible part is connected with the active plate or fixedly embedded in the active plate, and the other end of the main side flexible part is connected with the main side shell or fixedly embedded in the main side shell.

In one embodiment, a gap is arranged between the edge of the active plate and the inner wall of the main side shell; the flexible member is tapered to have a large end and a small end, the small end being connected to the active plate and the large end being connected to the primary side housing.

In one embodiment, a width of a gap between an edge of the active plate and an inner wall of the primary side housing is greater than a thickness of the primary side flexible member.

In one embodiment, the drive assembly further comprises a primary side extension block connected to the primary side housing for retaining the active plate withdrawn from the primary side housing interior cavity.

In one embodiment, the primary side extension blocks are distributed along the open edge of the primary side housing.

In one embodiment, the primary side housing is provided with a primary side port communicating with the drive chamber; the surface of the active plate, which is used for forming the inner wall of the driving cavity, is a front surface, and the main side through opening is arranged towards the front surface of the active plate; fluid flows into or out of the drive chamber through the primary side port.

In one embodiment, the primary side flexible member is malleable to relieve pressure experienced by the drive chamber by elastically deforming to expand.

A drain, comprising: the flushing mechanism and the regulation and control assembly are connected with the flushing mechanism; the regulation and control assembly is used for controlling the connection and disconnection between the driving cavity and a fluid supply source, and the fluid input into the driving cavity generates driving external force on the driving cavity to expand the driving cavity; the regulation assembly is also used for regulating the fluid supplement of the driven cavity; the regulation assembly is also configured to direct fluid from the drive chamber to replenish the driven chamber after compression of the driven chamber is completed or interrupted.

A sanitary fixture, comprising: the drainage device comprises a drainage device and a body connected with the drainage device; the body is provided with a liquid pool, the bottom of the liquid pool is provided with a sewage draining exit, and fluid discharged from the driven cavity is output to the liquid pool or the sewage draining exit of the body so as to wash the inner wall of the liquid pool or discharge sewage from the sewage draining exit.

Drawings

Fig. 1 is a schematic structural view of a sanitary device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the drain of FIG. 1 wherein the fluid supply is injecting fluid into the drive chamber through the primary side switching valve member to expand the drive chamber while compressing fluid discharged from the driven chamber;

FIG. 3 is a schematic structural view of the drain of FIG. 1 in another state wherein fluid in the drive chamber is flowing through the primary side switching valve element to the driven chamber and the fluid supply source is replenishing fluid to the driven chamber through the secondary side switching valve element;

fig. 4 is a schematic diagram of the flush mechanism of fig. 3, wherein the drive chamber is in a contracted state and the driven chamber is in an expanded state.

The corresponding relation between each reference number and each meaning in the drawings is as follows:

100. sanitary equipment; 20. a drainage device; 40. a flushing mechanism; 41. a drive assembly; 411. a drive chamber; f1, presetting a path on a main side; 412. a primary side housing; 413. a main side port; 414. a driving plate; 415. a primary side flexible member; 4151. a tapered surface; 4152. a tapered surface; 418. a primary side extension block; 42. a driven assembly; 421. a driven chamber; f2, secondary side preset paths; 424. a transition point; 425. a secondary side housing; 426. a secondary side port; 427. a driven plate; 428. a secondary-side flexible member; 429. a secondary side extension block; 43. a transmission assembly; 433. a transfer member; 50. a regulatory component; 51. a primary side switching valve element; 510b, a first port; 510c, a second port; 510d, a third port; 52. a switch control member; 54. a shrinkage detection member; 55. a secondary side switching valve element; 550. a fourth port; 551. a fifth port; 56. a liquid level detection member; 60. a drain pipe; 62. a high-order section; 30. a body; 31. a liquid pool; 311. a sewage draining outlet; 32. washing and brushing the waterway; 321. a liquid outlet hole; 33. a spray waterway; 34. a siphon tube; 700. a fluid supply source.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, a sanitary ware 100 according to an embodiment of the present invention includes a drainage device 20 and a main body 30 connected to the drainage device 20, wherein the main body 30 is provided with a liquid pool 31, and a drain outlet 311 is formed at the bottom of the liquid pool 31. In one embodiment, the sanitary fixture 100 is a toilet, it being understood that the sanitary fixture 100 may also be other fixtures that require flushing, such as a sink, a bathtub, etc. As shown in fig. 2 and 3, drain 20 includes a flush mechanism 40 and a regulating assembly 50 connected to flush mechanism 40. The control assembly 50 is used to control the flushing mechanism 40 so that the fluid in the flushing mechanism 40 can perform a washing or flushing operation on the body 30. The body 30 may have a washing waterway 32 to guide the fluid in the drain device 20 to the upper side of the liquid pool 31, so that the fluid can uniformly wash the inner wall of the liquid pool 31 from top to bottom. The body 30 may further include a spray water path 33 and a siphon 34 communicating with the drain outlet 311, wherein the spray water path 33 guides the fluid in the drain device 20 to the liquid pool 31 and discharges the dirt in the liquid pool 31 through the drain outlet 311 and the siphon 34.

Referring to fig. 4, a flushing mechanism 40 according to the present invention includes: a driving assembly 41, a driven assembly 42 and a transmission assembly 43. The actuation assembly 41 includes a primary side housing 412, an active plate 414, and a primary side flexure 415. The active plate 414 is movably disposed through the interior cavity of the primary side housing 412. Along the moving direction of the active plate 414 relative to the primary side housing 412, the active plate 414 and the primary side housing 412 are hermetically connected to different parts of the primary side flexible member 415 to form a driving cavity 411 with a variable space size in a matching manner. The driven assembly 42 has a driven chamber 421 of variable size for receiving a fluid. The driving assembly 43 is disposed between the driving plate 414 and the driven assembly 42. When the driving chamber 411 is expanded by the driving external force, the driving plate 414 exits the inner cavity of the main side housing 412 and transmits the driving external force through the transmission assembly 43 to make the compression of the driven chamber 421 smaller so as to discharge the fluid in the driven chamber 421, and the expansion space variation of the driving chamber 411 is smaller than the compression space variation of the driven chamber 421.

By injecting the fluid into the slave chamber 421 in advance, the internal space of the slave chamber 421 is sufficiently expanded, and the drive chamber 411 is evacuated in advance, so that the drive chamber 411 is in a contracted state. When the fluid supply source 700 generating the driving external force injects the fluid into the driving chamber 411 in the contracted state, the driving chamber 411 is filled with the fluid to expand its space. The driving chamber 411 transmits a driving external force to the transmission assembly 43 when expanding, and the driven chamber 421 is compressed by the transmission action of the transmission assembly 43, so that the fluid stored in the driven chamber 421 is discharged to the body 30 of the sanitary ware 100. Since the amount of change in space of the driven chamber 421 is greater than that of the driving chamber 411 when the driving chamber 411 is expanded, 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 from the fluid supply 700 is retained in the expanded driving chamber 411, the driving plate 414 can move at any position according to the expansion of the driving, and the driven assembly 42 compresses the discharged fluid through the transmission assembly 43, so that there is no need to define the angle of the main side housing 412 to the fluid supply 700, and the flushing mechanism 40 can flexibly adapt to the spatial layout in the sanitary ware 100. The driving cavity 411 is formed by hermetically connecting the main side shell 412, the driving plate 414 and the main side flexible piece 415, and the main side flexible piece 415 is flexible and easy to shrink or expand and deform, so that the whole inner wall surface of the driving cavity 411 is kept complete, the sealing performance of the driving cavity 411 is enhanced, and fluid leakage in the driving cavity 411 is avoided. Because main side flexible piece 415 is self deformation in the shrink or expansion process, and the friction with other spare parts is less, and main side flexible piece 415 self adopts flexible material, so not fragile in the course of the work has longer life.

In the drainage process, the external driving force borne by the driven chamber 421 can ensure the flushing flow to the body, so that the flushing mechanism 40 does not need to be placed at a certain height, which is beneficial to optimizing the appearance design or the internal structure layout of the sanitary bath equipment 100.

In some embodiments, fluid input into the drive chamber 411 causes a driving force to the drive chamber 411, causing the drive chamber 411 to expand. After the compression of the driven chamber 421 is completed, the regulating assembly 50 is used for guiding and supplementing the fluid in the driving chamber 411 to the driven chamber 421, and is also used for controlling the on-off between the driven chamber 421 and the fluid supply source 700, and supplementing the fluid provided by the fluid supply source 700 to the driven chamber 421. In some embodiments, the fluid supply 700 is the output of a municipal tap water line, and the fluid injected into the driving chamber 411 or the driven chamber 421 is tap water. In other embodiments, the fluid supply source 700 may be the output of a municipal tap water pipeline after passing through a pressure pump, or the output of an external pump of the sanitary fixture 100 for pumping the external stored water.

In the embodiment shown in fig. 2 and 3, the drainage device 20 further includes a drainage pipe 60 communicating with the driven chamber 421, and the drainage pipe 60 leads to the liquid pool 31 to guide the fluid discharged from the driven chamber 421 to the liquid pool 31. Specifically, the drain pipe 60 has at least a part of a higher level than the driven chamber 421, which is the high-level section 62 of the drain pipe 60.

The drive assembly 41 has a primary side port 413, and fluid flows into or out of the drive chamber 411 through the primary side port 413. The driven assembly 42 has a secondary port 426 through which fluid flows into or out of the driven chamber 421.

In the embodiment shown in fig. 2 and 3, the regulating assembly 50 includes a primary-side switching valve element 51 and a switch control element 52. The switch controller 52 adjusts the passage structure in the main-side switching valve element 51 in accordance with a signal or operation. The control assembly 50 further includes a secondary switching valve member 55 connected to the driven assembly 42 and a liquid level sensing member 56 connected to the driven assembly 42. The secondary-side switching valve element 55 is connected between the driven chamber 421 and the fluid supply source 700. The liquid level detecting member 56 floats in the driven chamber 421 or the drain pipe 60, or is disposed between the driven chamber 421 and the drain pipe 60, and is used for detecting the liquid level in the driven chamber 421 or the drain pipe 60 and generating feedback to the secondary side switching valve member 55, and the secondary side switching valve member 55 switches the flow passage between the driven chamber 421 and the fluid supply source 700 according to the feedback.

In some embodiments, the liquid level detection member 56 is a float, and the floating and lifting directions of the liquid level detection member 56 are limited so that the liquid level detection member 56 can be accurately engaged with the secondary-side switching valve member 55. Specifically, the level sensing member 56 is slidably connected to the secondary side switching valve member 55 or the driven assembly 42. In the embodiment shown in fig. 2 and 3, a part of the liquid level detection member 56 is disposed through the secondary side switching valve member 55. Referring to fig. 2, in detail, the secondary side switching valve 55 has a fourth port 550 and a fifth port 551, the fourth port 550 of the secondary side switching valve 55 is connected to the fluid supply source 700, and the fifth port 551 is connected to the driven chamber 421. When the inside of the secondary-side switching valve element 55 is in the reset state, the fourth port 550 communicates with the fifth port 551.

In other embodiments, the liquid level detecting element 56 may be any one or more of a mechanical float, a hall sensor, a light sensor, a water pressure sensor, a current sensor, etc. that can assist in detecting or determining the level of the liquid.

Further, the driven chamber 421 is connected to the drain pipe 60 through a transition 424, and the level of the transition 424 is higher than the main body of the driven chamber 421 and slightly lower than the high section 62 of the drain pipe 60. In the embodiment shown in fig. 2, the driven chamber 421 communicates from its top side to a transition 424.

In the embodiment shown in fig. 2 and 3, the level detection member 56 is disposed at the transition 424. In the process of supplementing the fluid into the driven chamber 421, when the fluid level in the transition portion 424 of the driven chamber 421 rises to a position slightly lower than the high level portion 62 of the drain pipe 60 until the fluid level is in contact with the fluid level detection member 56, the fluid level detection member 56 floats by buoyancy and rises, so as to generate feedback to the secondary side switching valve member 55 in time, and the secondary side switching valve member 55 stops the flow passage between the fluid supply source 700 and the driven chamber 421, thereby stopping the fluid from being supplemented into the driven chamber 421, and avoiding the fluid from automatically flowing out to the body 30 because the fluid levels in the driven chamber 421 and the drain pipe 60 exceed the high level portion 62 of the drain pipe 60. In the embodiment shown in fig. 2 and 3, the fifth port 551 of the secondary side switching valve 55 is connected to the transition 424 of the driven chamber 421. In the embodiment shown in fig. 3, when the secondary-side switching valve element 55 is in the reset state, the fluid supplied from the fluid supply source 700 automatically flows to the lower side of the driven chamber 421 through the secondary-side switching valve element 55 and enters the transition 424 of the driven chamber 421 under its own weight.

In some embodiments not shown, fluid replenishment of the slave chamber 421 may also be controlled in other ways.

Referring to fig. 2 and 3, the primary side switching valve element 51 is connected between the driving chamber 411 and the fluid supply source 700, and is also connected between the driving chamber 411 and the driven chamber 421. That is, the first port 510b of the primary-side switching valve element 51 having three ports is connected to the fluid supply source 700, the second port 510c is connected to the primary-side port 413 of the drive chamber 411, and the third port 510d is connected to the driven chamber 421. The regulating assembly 50 further includes a contraction detector 54 connected to the follower assembly 42, the contraction detector 54 being adapted to detect the degree of compression of the follower chamber 421 and to reset the switch control 52. In the reset state, the switching control member 52 isolates the driving chamber 411 from the fluid supply source 700, and the driving chamber 411 communicates with the driven chamber 421.

In some embodiments, the drive chamber 411 is in a collapsed state before starting to initiate drainage. When the liquid level in the driven chamber 421 rises to approach a predetermined level, the liquid level detection member 56 floats upward to cause the secondary switching valve member 55 to block the flow path between the driven chamber 421 and the fluid supply source 700, thereby preventing the fluid from being supplied to the driven chamber 421. The first port 510b of the primary-side switching valve element 51 is isolated from the second port 510c, preventing the fluid supply 700 from filling the drive chamber 411 with fluid.

Specifically, before the water is drained, since sufficient fluid is reserved in the driven chamber 421 and the drain pipe 60, the liquid level in the driven chamber 421 and the drain pipe 60 is high, so that the liquid level detection member 56 floats to a high height, and after the liquid level detection member 56 floats to the corresponding height, the top pin in the secondary side switching valve member 55 is actuated through mechanical, electrical or other cooperation actions, so that the fourth port 550 of the secondary side switching valve member 55 is isolated from the fifth port 551, and the fluid supply source 700 is prevented from replenishing the fluid in the driven chamber 421. In other embodiments, after the liquid level detecting element 56 floats to the corresponding height in the transition portion 424, the secondary side switching valve element 55 recognizes the liquid level detecting element 56 through photoelectric sensing, electromagnetic sensing, hall effect or other sensing actions, and then the driving component in the secondary side switching valve element 55 is caused to move the top pin in the secondary side switching valve element 55, so that the fourth port 550 of the secondary side switching valve element 55 is isolated from the fifth port 551.

Referring to fig. 2, after the water discharge is started, the first port 510b and the second port 510c are communicated with each other inside the primary side switching valve member 51, and the second port 510c and the third port 510d are closed, i.e., the fluid supply source 700 is communicated with the driving chamber 411, and the driving chamber 411 is isolated from the driven chamber 421. The fluid from the fluid supply source 700 is input into the driving chamber 411 through the main-side switching valve member 51, and the driving chamber 411 is expanded, so that the stored water in the driven chamber 421 is discharged to the body 30 of the sanitary ware 100 through the water discharge pipe 60 by the transmission of the transmission assembly 43.

During the period from the beginning of the drainage of the driven chamber 421 to the end of the drainage of the driven chamber 421, the fluid outputted from the fluid supply source 700 is injected into the driving chamber 411, the driven chamber 421 is contracted by the transmission assembly 43, and the fluid in the driven chamber 421 passes through the secondary side port 426 and is then drained into the body 30 through the drainage pipe 60. When the inner wall of the driven chamber 421 contracts and deforms to abut against the contraction detection member 54 provided in the driven chamber 421, the contraction detection member 54 transmits the force between the inner wall of the driven chamber 421 and the switching control member 52 to reset the switching control member 52, and the first through port 510b and the second through port 510c are blocked inside the main-side switching valve element 51.

Therefore, the flow path structure in the primary-side switching valve element 51 is adjusted to internally block the first port 510b and the second port 510c, and the fluid from the fluid supply source 700 stops being injected into the driving chamber 411, and the process of discharging the compressed driven chamber 421 is completed. At the same time as the switch control member 52 is reset, the flow passage structure in the main-side switching valve element 51 is adjusted to internally communicate the second port 510c with the third port 510 d. Thereafter, the fluid in the driving chamber 411 may flow back and be guided to the driven chamber 421 through the primary side switching valve element 51.

Referring to fig. 3 again, after the fluid supply source 700 is isolated from the driving chamber 411 by the trigger of the contraction detection element 54, before the liquid level detection element 56 floats below the liquid level detection element to activate the conduction of the secondary-side switching valve element 55, the fluid at the transition point 424 flows back to the middle lower part of the driven chamber 421 under the action of its own weight, and the residual fluid in the driven chamber 421 also forms a thrust on the inner wall of the driven chamber 421 due to its own weight, so that the driven chamber 421 expands. Expansion of the slave chamber 421 causes compression of the drive chamber 411 by the transmission assembly 43, causing fluid in the drive chamber 411 to flow through the primary side switching valve member 51 to the slave chamber 421 after being pressurized.

The fluid level in the driven chamber 421 drops due to the active expansion of the driven chamber 421 by the gravity or pressure of the fluid while the volume of fluid replenished to the driven chamber 421 by the driving chamber 411 is limited. When the liquid level in the driven chamber 421 drops to a value lower than a certain height value, the liquid level detection element 56 floats downward and is away from the secondary side switching valve element 55, so that the knock pin in the secondary side switching valve element 55 loses the transmission function and is reset and conducted. The reset conduction of the secondary side switching valve element 55 means that the fourth port 550 and the fifth port 551 of the secondary side switching valve element 55 communicate with each other, and thus the fluid supply source 700 can replenish the fluid into the driven chamber 421 through the secondary side switching valve element 55. The fluid filling the slave chamber 421 increases the pressure experienced by the interior walls of the slave chamber 421 to facilitate expansion of the slave chamber 421 and compression of the drive chamber 411. The fluid in the driving chamber 411, which is guided by the further compression, is supplemented to the driven chamber 421 via the primary side switching valve member 51 and the transition 424.

As the fluid supply 700 is replenished, the fluid level within the slave chamber 421 and the transition 424 continues to rise. After the liquid level detecting element 56 floats to a corresponding height, the pin in the secondary side switching valve element 55 is actuated by mechanical, electrical, photoelectric or other sensing action, so that the fourth port 550 of the secondary side switching valve element 55 is isolated from the fifth port 551, thereby stopping the fluid supply from the fluid supply source 700 to the driven chamber 421, ending the water replenishing process of the driven chamber 421, and the drain device 20 enters the ready state again.

In addition to the above-described embodiment in which the contraction detecting member 54 resets the switching control member 52, in other embodiments, after the compression of the slave chamber 421 is completed, the switching control member 52 is reset to off by an electric control signal, and the fluid supply source 700 and the drive chamber 411 are isolated from each other and turned off. In other embodiments, the switch control 52 may be reset to isolate the drive chamber 411 from the fluid supply 700 by manually operating a button or handle on the switch control 52.

In the above-described embodiment, the drain pipe 60 has a level at least partially higher than that of the driven chamber 421. In some embodiments not shown, the drain pipe 60 and the transition 424 may be disposed lower than the driven chamber 421, and the driven chamber 421 is communicated with the transition 424 from the bottom side thereof. By providing valves such as pressure valves or solenoid valves at the drain pipe 60 and the transition point 424, the fluid in the slave chamber 421 is prevented from being spontaneously filled into the drain pipe 60 by its own weight and discharged. When the driven chamber 421 is compressed by the expansion of the driving chamber 411, the pressure in the driven chamber 421 is increased to open the pressure valve member, so that the fluid in the driven chamber 421 enters the drainage pipe 60 and is discharged to the body 30. In this embodiment, the slave chamber 421 may communicate through its underside to the drain 60.

Referring to fig. 4, the moving direction of the active plate 414 relative to the main side housing 412 is a main side predetermined path F1, and the main side predetermined path F1 is also the expanding direction or the contracting direction of the driving cavity 411. The driving plate 414 is connected to the driving assembly 43, and during the movement of the driving plate 414, the driving assembly 43 moves synchronously. Specifically, the primary side port 413 is provided on the primary side case 412. The surface of the active plate 414 for forming the inner wall of the driving chamber 411 is a front surface, and the primary side through-hole 413 is disposed toward the front surface of the active plate 414. When the fluid is injected into the driving cavity 411, the fluid is injected toward the active plate 414, so that momentum transfer is generated between the fluid and the active plate 414, the moving efficiency of the active plate 414 is increased, and the loss of fluid momentum is reduced. Specifically, the primary side port 413 need only be oriented toward the active plate 414, and is not limited to being open to the horizontal side or vertically above or below the primary side enclosure 412, by the directional adjustment of the actuator assembly 43.

Referring to fig. 4 again, the main side flexible element 415 is cylindrical, one end of which is connected to the active plate 414 or fixedly embedded in the active plate 414, and the other end of which is connected to the main side housing 412 or fixedly embedded in the main side housing 412. In one embodiment, a gap is provided between the edge of the active plate 414 and the inner wall of the primary side housing 412 to facilitate movement of the active plate 414 within the primary side housing 412. Further, primary side flexible member 415 is tapered to have a large end and a small end, the small end being connected to active plate 414 and the large end being connected to primary side housing 412. Further, the drive assembly 41 also includes a primary side extension block 418 coupled to the primary side housing 412, the primary side extension block 418 being proximate to the open side of the primary side housing 412 to restrain the active plate 414 from exiting from the interior cavity of the primary side housing 412. Specifically, the primary side extension blocks 418 are distributed along the opening edge of the primary side housing 412 to limit the range of motion of the active plate 414 in the plane perpendicular to the primary side predetermined path F1.

In the embodiment shown in fig. 4, when the active plate 414 moves along the primary side predetermined path F1 in a direction to penetrate into the inner cavity of the primary side housing 412, the space of the driving chamber 411 is contracted. In the fully contracted state of the driving chamber 411, the depth of the active plate 414 embedded in the main side housing 412 is large, the surface of the main side flexible piece 415 and the inner wall surface of the main side housing 412 form a folding relationship, so that one side surface of the main side flexible piece 415 is opposite to the inner wall surface of the main side housing 412, and the space of the driving chamber 411 is smaller than the inner cavity space of the main side housing 412. When the fluid is injected, the active plate 414 moves along the primary side predetermined path F1 in a direction to exit the inner cavity of the primary side case 412, and the space of the driving chamber 411 is expanded. In the fully expanded state of the actuation cavity 411, the active plate 414 is moved away from the interior volume of the primary side housing 412 and the primary side flexible member 415 is folded over outside the primary side housing 412, such that the volume of the actuation cavity 411 is equal to the sum of the volume enclosed by the primary side flexible member 415 after being folded over and the interior volume of the primary side housing 412. Since the space of the driving chamber 411 is limited by the inner wall of the primary side case 412 in the radial direction of the moving locus of the active plate 414, the spatial expansion of the driving chamber 411 is mainly caused by the movement of the active plate 414 with respect to the primary side case 412, and thus the driving chamber 411 is mainly expanded along the primary side preset path F1 when the driving chamber 411 is expanded by the fluid infusion.

In the embodiment shown in fig. 2 and 3, the tapered surfaces of primary side flexible member 415 are reversed in orientation during inversion. Specifically, when the driving chamber 411 is fully contracted, one tapered surface 4151 of the primary side flexible member 415 faces the inner wall of the primary side housing 412 and faces away from the active plate 414, and the other tapered surface 4152 faces the active plate 414, since one tapered surface 4151 of the primary side flexible member 415 and the inner wall of the primary side housing 412 together serve as the inner wall surface of the driving chamber 411, when one tapered surface 4151 of the primary side flexible member 415 and the inner wall of the primary side housing 412 are opposed to each other, the inner wall surface of the driving chamber 411 is in a gathered state. When the drive chamber 411 is fully expanded, the primary side flexible member 415 flips over, and the tapered surface 4151 of the primary side flexible member 415 that originally faced away from the active plate 414 changes to face toward the active plate 414, while the tapered surface 4152 of the primary side flexible member 415 that originally faced toward the active plate 414 changes to face away from the active plate 414. After the large end of the master-side flexible member 415 is connected to the master-side case 412, the turning movement direction of the small end of the master-side flexible member 415 is parallel to the master-side preset path F1, and thus the active plate 414 can be guided to move along the master-side preset path F1 with respect to the master-side case 412. Further, the width of the gap between the edge of the active plate 414 and the inner wall of the primary side housing 412 is greater than the thickness of the primary side flexible member 415. In one embodiment, the width of the gap between the edge of the active plate 414 and the inner wall of the primary side enclosure 412 is greater than twice the thickness of the primary side flexible member 415. This prevents the primary side flexible member 415 from overlapping itself and being compressed between the edge of the active plate 414 and the inner wall of the primary side enclosure 412 when the active plate 414 is moved to the connection position between the primary side flexible member 415 and the primary side enclosure 412, thereby preventing jamming of the primary side flexible member 415 against movement relative to the primary side enclosure 412. Further, the primary flexible member 415 is malleable, and after the actuation chamber 411 is sufficiently expanded, the primary flexible member 415 can expand to relieve the pressure on the other components of the actuation assembly 41, thereby avoiding excessive pressure on the actuation assembly 41 caused by a failure to timely shut off the fluid supply 700.

In other embodiments, the driving assembly 41 is not limited to being prevented from being subjected to excessive pressure by the elastic deformation of the primary side flexible member 415, and the maximum pressure to which the driving assembly 41 is subjected may be limited by other forms.

Since the primary side flexible member 415 and the active plate 414 need to be accommodated in the primary side housing 412 when the driving chamber 411 is contracted, the cross-sectional area of the inner cavity of the primary side housing 412 in the vertical primary side preset path F1 is the maximum cross-sectional area of the driving chamber 411 in the vertical primary side preset path F1.

In the embodiment shown in fig. 4, the driven assembly 42 includes a secondary side housing 425, a driven plate 427, and a secondary side flexure 428. A driven plate 427 is movably disposed through the inner cavity of the secondary side housing 425, a secondary side flexible member 428 is connected between the secondary side housing 425 and the driven plate 427, and the driven plate 427 is a secondary side preset path F2 with respect to the moving direction of the secondary side housing 425. Along the expanding direction of the driven chamber 421, i.e., the secondary preset path F2, the driven plate 427 and the secondary housing 425 are sealingly connected to different portions of the secondary flexible member 428 to cooperatively form the driven chamber 421. Driven plate 427 is coupled to drive assembly 43 such that during movement of driven plate 427, drive assembly 43 moves synchronously. The secondary side housing 425 is provided with a secondary side port 426 communicating with the driven chamber 421, and fluid flows into or out of the driven chamber 421 through the secondary side port 426. The secondary-side flexible member 428 has a cylindrical shape, one end of which is connected to the driven plate 427 or fixedly fitted in the driven plate 427, and the other end of which is connected to the secondary-side housing 425 or fixedly fitted in the secondary-side housing 425. In one embodiment, a gap is provided between the edge of driven plate 427 and the inner wall of secondary side housing 425 to facilitate movement of driven plate 427 within secondary side housing 425. Further, the secondary flexible member 428 is tapered to have a large end and a small end, the small end being connected to the driven plate 427 and the large end being connected to the secondary housing 425. Further, the driven assembly 42 also includes a secondary side extension block 429 coupled to the secondary side housing 425, the secondary side extension block 429 being proximate the open side of the secondary side housing 425 to limit the exit of the driven plate 427 from the interior cavity of the secondary side housing 425.

In the embodiment shown in fig. 4, when the driven plate 427 is moved in the direction of going deep into the inner cavity of the secondary side housing 425 along the secondary side preset path F2, the space of the driven chamber 421 is contracted. In the fully contracted state of the driven chamber 421, the depth of the driven plate 427 fitted into the secondary housing 425 is large, the surface of the secondary flexure 428 is folded in half with the inner wall surface of the secondary housing 425, one side surface of the secondary flexure 428 is opposed to the inner wall surface of the secondary housing 425, and the space of the driven chamber 421 is made smaller than the inner cavity space of the secondary housing 425. When the driven plate 427 is moved in the direction of withdrawing the inner cavity of the secondary side housing 425 along the secondary side preset path F2, the space of the driven cavity 421 is expanded. When the driven chamber 421 is fully expanded by the stored fluid, the driven plate 427 is separated from the inner cavity of the secondary housing 425, and the secondary flexible member 428 is turned to the outside of the secondary housing 425, so that the space of the driven chamber 421 is equal to the sum of the space surrounded by the secondary flexible member 428 after being turned outwards and the inner cavity space of the secondary housing 425. Since the driven chamber 421 is spatially restricted by the inner wall of the secondary side housing 425 in the radial direction of the moving locus of the driven plate 427, the spatial expansion of the driven chamber 421 is mainly caused by the movement of the driven plate 427 with respect to the secondary side housing 425, and thus the driven chamber 421 is mainly expanded along the secondary side preset path F2 when the driven chamber 421 is expanded by the injection of the fluid.

At the end of expansion of drive chamber 411, the movement of driven plate 427 deeper into secondary side housing 425 is impeded by the inner wall of secondary side housing 425, thereby limiting movement of active plate 414 relative to primary side housing 412 and further expansion of drive chamber 411. At the end of the expansion of the driven chamber 421, the movement of the driving plate 414 deep into the primary side housing 412 is impeded by the inner wall of the primary side housing 412, thereby restricting the movement of the driven plate 427 with respect to the secondary side housing 425 and further expansion of the driven chamber 421.

Since the secondary flexible member 428 and the driven plate 427 need to be accommodated in the secondary housing 425 when the driven chamber 421 is contracted, the cross-sectional area of the inner cavity of the secondary housing 425 in the vertical secondary preset path F2 is the maximum cross-sectional area of the driven chamber 421 in the vertical secondary preset path F2. In the embodiment shown in fig. 4, by making the maximum sectional area of the driving chamber 411 perpendicular to the primary side preset path F1 smaller than the maximum sectional area of the driven chamber 421 perpendicular to the secondary side preset path F2, the amount of change in the expansion space of the driving chamber 411 is smaller than the amount of change in the compression space of the driven chamber 421 or the amount of change in the compression space of the driving chamber 411 is smaller than the amount of change in the expansion space of the driven chamber 421 in the case where the driving plate 414 moves the same distance as the driven plate 427.

In the embodiment shown in FIG. 4, the transmission assembly 43 includes a transmission member 433, the transmission member 433 being connected between the driving plate 414 and the driven plate 427. When the driving plate 414 exits the primary side housing 412 as the driving chamber 411 expands, the driving plate 414 pushes the driven plate 427 deep into the inner cavity of the secondary side housing 425 through the transmission member 433, and thus the space of the driven chamber 421 is contracted. Specifically, the secondary side extension blocks 429 are distributed along the opening edge of the secondary side housing 425 to limit the range of movement of the driven plate 427 on the plane perpendicular to the secondary side preset path F2. The secondary side extension block 429 is fixedly coupled to the primary side extension block 418 such that the primary side housing 412 is relatively fixed with respect to the secondary side housing 425.

In some embodiments not shown, the driven assembly 42 is not limited to being comprised of the secondary housing 425, the driven plate 427, and the secondary flexure 428, and the driven assembly 42 may take other configurations that form a driven cavity. The transmission member 433 is not limited to a single component, and the transmission assembly 43 may be any structure that allows the driven chamber 421 to compress the driven chamber 421 as the driving chamber 411 expands.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A flush mechanism, comprising:

the driving assembly comprises a main side shell, a driving plate and a main side flexible piece; the driving plate movably penetrates through the inner cavity of the main side shell; the driving plate and the main side shell are connected to different parts of the main side flexible piece in a sealing mode along the moving direction of the driving plate relative to the main side shell, and a driving cavity with a variable space size is formed by matching the driving plate and the main side shell;

the driven assembly is provided with a driven cavity which is used for containing fluid and has a variable space size; and

and the transmission assembly is arranged between the driving plate and the driven assembly, wherein when the driving cavity is expanded by driving external force, the driving plate exits from the inner cavity of the main side shell and transmits the driving external force to enable the driven cavity to be compressed and discharged by the driven cavity, and the compression space variation of the driven cavity is larger than the expansion space variation of the driving cavity.

2. The flush mechanism of claim 1, wherein said primary side flexible member is cylindrical; one end of the main side flexible part is connected with the active plate or fixedly embedded in the active plate, and the other end of the main side flexible part is connected with the main side shell or fixedly embedded in the main side shell.

3. The flush mechanism of claim 1 or 2, wherein a gap is provided between an edge of the active plate and an inner wall of the primary side housing; the flexible member is tapered to have a large end and a small end, the small end being connected to the active plate and the large end being connected to the primary side housing.

4. The flush mechanism of claim 3, wherein a width of a gap between an edge of the active plate and an inner wall of the primary side housing is greater than a thickness of the primary side flexible member.

5. The flush mechanism of claim 1, wherein the actuation assembly further comprises a primary side extension block connected to the primary side housing for limiting withdrawal of the active plate from the primary side housing interior cavity.

6. The flush mechanism of claim 1, wherein the primary side extension block is distributed along an opening edge of the primary side housing.

7. The flush mechanism of claim 1, wherein the primary side housing has a primary side port therethrough communicating with the drive chamber; the surface of the active plate, which is used for forming the inner wall of the driving cavity, is a front surface, and the main side through opening is arranged towards the front surface of the active plate; fluid flows into or out of the drive chamber through the primary side port.

8. The flush mechanism of claim 1, wherein the primary side flexible member is malleable to relieve pressure experienced by the actuation chamber by elastically deforming to expand.

9. A drain, comprising: the flushing mechanism of any one of claims 1 to 8 and a regulating assembly connected to the flushing mechanism; the regulation and control assembly is used for controlling the connection and disconnection between the driving cavity and a fluid supply source, and the fluid input into the driving cavity generates driving external force on the driving cavity to expand the driving cavity; the regulation assembly is also used for regulating the fluid supplement of the driven cavity; the regulation assembly is also configured to direct fluid from the drive chamber to replenish the driven chamber after compression of the driven chamber is completed or interrupted.

10. A sanitary installation, comprising: the drain of claim 9 and a body connected to the drain; the body is provided with a liquid pool, the bottom of the liquid pool is provided with a sewage draining exit, and fluid discharged from the driven cavity is output to the liquid pool or the sewage draining exit of the body so as to wash the inner wall of the liquid pool or discharge sewage from the sewage draining exit.

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