CN215906918U - Flushing mechanism, drainage device and bathroom equipment - Google Patents

Abstract

The utility model 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 and a primary side flexible plate. The edge of the main side flexible plate is kept in butt joint with the wall surface of the main side shell, so that a driving cavity which is used for containing fluid and has a variable space size is formed between the main side flexible 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. The transmission assembly is arranged between the main side flexible plate and the driven assembly, and when the main side flexible plate moves in the direction of withdrawing from the inner cavity of the main side shell under the driving external force provided by the fluid supply source, the main side flexible plate transmits the driving external force through the transmission assembly to enable the driven cavity to be compressed and reduced to discharge the fluid in the driven cavity. The primary side flexible plate is capable of expanding and causing the driven assembly to compress the discharged fluid through the transmission assembly, thereby eliminating the need to angle the access of the drive chamber to the fluid supply.

Description

Flushing mechanism, drainage device and bathroom equipment

Technical Field

The utility model 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.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a flushing mechanism, a drain device and a sanitary equipment, which are directed to the problem that the water storage container in the conventional sanitary equipment needs to be limited in the fluid injection from the bottom side, and the internal layout of the sanitary equipment is limited.

A flush mechanism, comprising:

the driving assembly comprises a main side shell and a main side flexible plate movably contained in the main side shell; when the main side flexible plate enters or exits the inner cavity of the main side shell and moves, the edge of the main side flexible plate is kept in contact with the wall surface of the main side shell, so that a driving cavity which is used for containing fluid and has variable space size is formed between the main side flexible 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 main side flexible plate and the driven assembly, wherein when the main side flexible plate moves in a direction of withdrawing from the inner cavity of the main side housing by a driving external force provided by a fluid supply source, the main side flexible plate transmits the driving external force through the transmission assembly to make the driven cavity become less compressed and discharge the fluid in the driven cavity, and the compression space variation of the driven cavity is greater than the expansion space variation amount of the driving cavity.

According to the flushing mechanism, as the fluid injected by the fluid supply source is reserved in the expanded driving cavity, namely between the main side shell and the main side flexible plate, the main side flexible plate can be expanded and the driven assembly can compress the discharged fluid through the transmission assembly, the angle of the access port of the driving cavity to the fluid supply source is not required to be limited, and the flushing mechanism can flexibly adapt to the spatial layout in the sanitary ware.

In one embodiment, the drive assembly includes a primary side push plate; one surface of the main side push plate is attached to the main side flexible plate; when the main side flexible plate is moved by a driving external force provided by the fluid supply source along the direction of withdrawing the inner cavity of the main side shell, the main side flexible plate transmits the driving external force to the driven assembly through the main side push plate, so that the driven cavity is compressed to be small and the fluid in the driven cavity is discharged; the main side push plate is more rigid than the main side flexible plate to stabilize the main body shape of the main side flexible plate.

In one embodiment, the moving direction of the main side flexible plate entering or exiting the main side shell inner cavity is a main side preset path; and on the plane projection perpendicular to the main side preset path, the outer diameter of the main side push plate is smaller than that of the main side flexible plate, so that a gap is formed between the edge of the main side push plate and the inner wall of the main side shell.

In one embodiment, the edge shape of the main side push plate is conformed to the shape of the inner wall of the main side case in a plane projection perpendicular to the main side preset path to form a uniform gap between the edge of the main side push plate and the inner wall of the main side case.

In one embodiment, the main side flexible plate has a large end and a small end, the small end of the main side flexible plate is connected with the main side push plate, the large end is the end of the main side flexible plate far away from the main side push plate, and the outer diameter of the main side flexible plate is increased along the direction deep into the main side shell.

In one embodiment, one side of the main side flexible plate, which faces away from the main side push plate, is provided with a main side groove; the inner diameter of the main side groove is enlarged and changed along the direction far away from the main side push plate.

In one embodiment, the primary side housing is provided with a primary side port through which the fluid enters and exits the drive chamber; the primary side flexible plate has a surface for forming the drive cavity disposed opposite the primary side through opening.

In one embodiment, the primary side housing is provided with a primary side stepped slot between its interior cavity and the primary side port; the inner diameter of the main side stepped groove is smaller than the outer diameter of the main side flexible plate and larger than the inner diameter of the main side opening.

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 the 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. 2A is a schematic structural diagram of a drainage device according to an embodiment of the present invention, wherein the drainage device is just beginning to drain water from the driven chamber;

FIG. 2B is a schematic structural view of the drainage apparatus shown in FIG. 2A, wherein the drainage process of the drainage apparatus is about to end;

FIG. 3 is a schematic view of a flushing mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a primary side flexible plate, a secondary side flexible plate and a transmission assembly according to another embodiment of the utility model.

Reference numerals:

100. sanitary equipment; 20. a drainage device; 40. a flushing mechanism; 41. a drive assembly; 411. a drive chamber; f1, main side presetting path; 412. a primary side housing; 413. a main side port; 414. air holes; 416. a main side stepped groove; 415. a primary side flexible sheet; 4151/4281, big end; 4152/4282, small end; 4153. a primary side abutting surface; 417. a main side groove; 42. a driven assembly; 421. a driven chamber; f2, secondary side preset path; 424. a transition point; 425. a secondary side housing; 426. a secondary side port; 428. a secondary-side flexible plate; 4283. a secondary side abutting surface; 4284. a secondary side groove; 43. a transmission assembly; 430. a main side push plate; 432. a secondary side push plate; 433. a transfer member; 50. a regulatory component; 51. a primary side switching valve element; 52. a switch control; 53. a water tank; 531. a liquid level control; 532. a liquid inlet valve; 533. a liquid supplementing pipe; 534. a one-way valve; 535. a predetermined liquid level; 60. a drain pipe; 61. a siphon elimination valve; 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 utility model 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 utility model.

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 specifically limited 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.

The technical scheme provided by the embodiment of the utility model is described below by combining the accompanying drawings.

The utility model provides a sanitary ware 100.

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.

Specifically, referring to fig. 1, the sanitary equipment 100 includes a drainage device 20 and a body 30 connected to the drainage device 20, the body 30 is provided with a liquid pool 31, and a drain outlet 311 is formed at the bottom of the liquid pool 31. As shown in fig. 2A and 2B, the drain 20 includes a flush mechanism 40, and a regulating assembly 50 connected to the 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 connected to the waste discharge opening 311, wherein the spray water path 33 guides the fluid in the drainage device 20 to the liquid pool 31 and discharges the dirt in the liquid pool 31 through the waste discharge opening 311 and the siphon 34.

The present invention provides a flush mechanism 40.

Specifically, referring to fig. 3, the flushing mechanism 40 includes: a driving assembly 41, a driven assembly 42 and a transmission assembly 43. The actuator assembly 41 includes a primary side housing 412 and a primary side flexible plate 415 movably received in the primary side housing 412. When the primary side flexible board 415 moves in or out of the inner cavity of the primary side shell 412, the edge of the primary side flexible board 415 is kept in contact with the wall surface of the primary side shell 412, so that a driving cavity 411 which is used for containing fluid and has a variable space size is formed between the primary side flexible board 415 and the primary side shell 412. The driven assembly 42 has a driven chamber 421 of variable size for receiving a fluid. The driving assembly 43 is disposed between the primary side flexible board 415 and the driven assembly 42, when the primary side flexible board 415 is moved in a direction of withdrawing the inner cavity of the primary side housing 412 by the driving external force provided by the fluid supply source 700, the primary side flexible board 415 transmits the driving external force through the driving assembly 43 to make the driven cavity 421 compress less to discharge the fluid in the driven cavity 421, and the expansion space variation of the driving cavity 411 is smaller than the compression space variation of the driven cavity 421.

The basic principle of application of the flush mechanism 40 is as follows:

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 spatial variation 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, i.e., between the main side housing 412 and the main side flexible plate 415, the main side flexible plate 415 can be expanded and the driven assembly 42 can compress the discharged fluid through the transmission assembly 43, and thus the angle of the access of the driving chamber 411 to the fluid supply 700 is not required to be limited, and the flushing mechanism 40 can be flexibly adapted to the spatial arrangement in the sanitary ware 100.

In the drainage process, the flushing flow of the body 30 can be ensured by using the driving external force borne by the driven cavity 421, so that the flushing mechanism 40 does not need to be placed at a certain height, and the optimization of the appearance design or the internal structure layout of the sanitary ware 100 is facilitated.

The fluid supply 700 has various forms.

Specifically, in some embodiments, the fluid supply 700 is the output of a municipal tap water line, and the fluid injected into the drive 411 or driven 421 chambers is tap water. In other embodiments, the fluid supply source 700 may be an output of a municipal tap water pipeline through a pressure pump, or a pumping output of an external pump of the sanitary fixture 100 to an external water storage.

The regulation assembly 50 is used to realize the regulation of the fluid in and out of the driving chamber 411 and the driven chamber 421.

In some embodiments, the regulating assembly 50 is used to control the on/off between the fluid supply 700 and the driving chamber 411, and the fluid provided by the fluid supply 700 is input to the driving chamber 411. The fluid input to the driving chamber 411 generates a driving external force to the driving chamber 411 to expand the driving chamber 411 and compress the driven chamber 421. 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.

Referring to fig. 2A and 2B again, the regulating assembly 50 includes a primary side switching valve 51, a switch control 52 and a water tank 53. The main-side switching valve element 51 is connected between the fluid supply source 700 and the driving chamber 411, and the main-side switching valve element 51 is also connected between the driving chamber 411 and the water tank 53. The switch control 52 is connected between the main-side switching valve element 51 and the fluid supply source 700. The switch control 52 is a valve structure, more specifically, a solenoid-operated valve. The liquid level control member 531 controls the liquid level of the fluid in the tank 53 to be 535 by adjusting the on/off state of the liquid inlet valve 532, and the liquid level control member 532 controls the liquid level of the fluid in the tank 53 to be 535. The inner cavity of the water tank 53 is connected to the driven chamber 421 through a fluid supplementing pipe 533, and a check valve 534 is disposed on the fluid supplementing pipe 533 to prevent the fluid in the driven chamber 421 from flowing back to the water tank 53, but to allow the fluid in the water tank 53 to flow to the driven chamber 421 through the check valve 534. The slave chamber 421 is positioned below a predetermined level 535.

The driven chamber 421 communicates with the body 30 through a drain pipe 60.

Specifically, the drain device 20 further includes a drain pipe 60 communicating with the driven chamber 421, and the drain pipe 60 leads to the liquid pool 31 to guide the fluid discharged from the driven chamber 421 to flow to the liquid pool 31. The drain 60 also serves to restrict fluid to the slave chamber 421 before draining of the slave chamber 421 is initiated.

Referring again to fig. 2A and 2B, in this embodiment, the drain pipe 60 is at least partially higher than the driven chamber 421, and is partially the high section 62 of the drain pipe 60. 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. 2A and 2B, the driven chamber 421 communicates from its top side to a transition 424. Further, the drain 20 further includes a siphon relief valve 61 connected to the drain pipe 60, the siphon relief valve 61 being connected to a portion of the drain pipe 60 above the predetermined liquid level 535.

The basic operating principle of the drain 20 is as follows:

when the fluid starts to be injected into the driving chamber 411, the drainage process of the driven chamber 421 is started.

Specifically, referring to fig. 2A and 2B, when the switch control member 52 receives a drainage command, the switch control member 52 is controlled to be turned on, the fluid supplied from the fluid supply source 700 passes through the switch control member 52, and the hydraulic pressure of the fluid acts on the primary side switching valve member 51, so that the primary side switching valve member 51 of the three-way structure is switched to open the flow passage between the fluid supply source 700 and the driving chamber 411 and close the flow passage between the driving chamber 411 and the water tank 53. The injection of fluid tends to expand the driving chamber 411, the driving chamber 411 acts on the driven chamber 421 through the transmission assembly 43 to squeeze the driven chamber 421, and the liquid level in the driven chamber 421 rises due to the compression of the driven chamber 421.

Before the fluid level in the driven chamber 421 and the drain 60 rises above the high level section 62 of the drain 60, fluid is confined in the driven chamber 421 or the transition 424 to avoid the fluid in the driven chamber 421 from spontaneously flowing around the drain 60 under its own weight. After the driven chamber 421 is sufficiently compressed, the liquid level in the driven chamber 421 and the drain pipe 60 rises and passes over the high-level section 62 of the drain pipe 60, and the fluid is discharged from the drain pipe 60, flows out into the body 30, and outputs a large volume of fluid to the body 30.

Further, the drain 60 is partially positioned above the predetermined level 535. In other words, the highest portion of the drain pipe 60 is disposed higher than the main structure of the tank 53. Unlike the conventional water tank 53 that must be set at a high position to generate potential energy to drain the water to the drain pipe 60, the water tank 53 is set at a position that is more flexible and can reduce the overall volume of the drain device 20 or the sanitary ware 100, thereby improving the layout.

When the drain pipe 60 discharges the stored water by compressing the driven chamber 421, the siphon release valve 61 isolates the inside and outside air pressure environments of the drain pipe 60 by the high pressure of the stored water, thereby preventing the stored water discharged from the drain pipe 60 from leaking through the siphon release valve 61. The fluid in the driven chamber 421 cannot flow backward to the tank 53 when the water is discharged, restricted by the check valve 534.

The stored water in the driven chamber 421 can be sufficiently discharged for a predetermined time.

After the drain command is cancelled for the predetermined time, referring to fig. 2A and 2B again, the switch control member 52 connected between the main-side switching valve member 51 and the fluid supply source 700 is controlled to switch to the off state, the main-side switching valve member 51 loses the pressure effect of the fluid, and the internal flow passage of the main-side switching valve member 51 of the three-way structure is thus switched to the state of communicating the driving chamber 411 with the water tank 53 and isolating the fluid supply source 700 from the driving chamber 411. The driving chamber 411 completes the compression of the driven chamber 421 due to the loss of the driving external force provided by the fluid, and the accumulated water in the driving chamber 411 is guided to be supplemented to the water tank 53 in the subsequent water supplementing process of the driven chamber 421.

If the switching control member 52 is unexpectedly turned off or the fluid supply source 700 itself stops outputting before the stored water in the slave chamber 421 is sufficiently discharged, the driving chamber 411 stops expanding due to the loss of the driving external force provided by the fluid, and the compression of the slave chamber 421 is interrupted. Specifically, the cessation of output from the fluid supply 700 may be due to a loss of water from a municipal water line or a valve associated with the fluid supply 700 that stops the fluid output from the fluid supply 700.

After the compression of the driven chamber 421 is completed or interrupted, the stored water being discharged from the drain pipe 60 forms a negative pressure inside the drain pipe 60 due to the loss of the force compressing the driven chamber 421. The siphon release valve 61 communicates the inside and outside air pressure environments of the drain pipe 60 under the negative pressure, and the air flow outside the drain pipe 60 enters the inside of the drain pipe 60 to release the negative pressure in the drain pipe 60, thereby interrupting the water flow in the drain pipe 60 and preventing the stored water discharged from the drain pipe 60 from continuously sucking fluid from the water tank 53, the fluid replenishing pipe 533 and the driven chamber 421 in sequence into the drain pipe 60 under the negative pressure.

Referring again to fig. 2A and 2B, after compression of the slave chamber 421 is completed or interrupted, the weight of the remaining water in the slave chamber 421 creates a pressure against the inner wall of the slave chamber 421. The slave chamber 421 expands and deforms under this pressure, causing the fluid level in the slave chamber 421 or the drain 60 to drop below the predetermined level 535 without fluid replenishment. Since the placement height of the driven chamber 421 is lower than the predetermined level 535 and the water tank 53 is connected to the driven chamber 421 through the fluid-replenishing pipe 533, when the fluid level in the driven chamber 421 or the drain pipe 60 is lower than the predetermined level 535, the fluid in the water tank 53 is automatically replenished to the driven chamber 421 through the fluid-replenishing pipe 533 due to the height difference under the principle of the communicating vessel, and the driven chamber 421 is simultaneously expanded by the replenishing fluid until the fluid level in the driven chamber 421 or the drain pipe 60 reaches the predetermined level 535.

The driven chamber 421 compresses the driving chamber 411 through the transmission of the transmission assembly 43, and the fluid discharged from the compressed driving chamber 411 flows to the water tank 53 through the primary side switching valve member 51. Referring specifically to fig. 2A and 2B, as the driven chamber 421 expands due to the replenishment of fluid from the tank 53, it reacts against the drive chamber 411 via the drive assembly 43, and the drive chamber 411 is compressed and discharges fluid to the tank 53. Since the fluid in the tank 53 can supplement the driven chamber 421, the accumulated water in the driving chamber 411 can indirectly supplement the driven chamber 421.

In the embodiment shown in fig. 2A and 2B, when the fluid level in the slave chamber 421 or the drain 60 is below the predetermined fluid level 535, a refill command is generated and acts on the check valve 534 to open the check valve 534. The fluid in the tank 53 can thus be replenished to the driven chamber 421 through the replenishing pipe 533 and the check valve 534. When the level in the slave chamber 421 or the drain 60 rises to greater than or equal to the predetermined level 535, the level of the fluid between the slave chamber 421 and the tank 53 reaches equilibrium, and the water refill command is thus cancelled and the one-way valve 534 is blocked. The flow path from the tank 53 to the driven chamber 421 is simultaneously closed.

The level control 531 may feed back to the intake valve 532 in a number of ways.

The liquid level control member 531 floats on the liquid level in the water tank 53, and the liquid level control member 531 switches the liquid inlet valve 532 on and off through mechanical transmission, photoelectric sensing, pressure-sensitive sensing, hall effect or other feedback coordination modes according to the floating height. When the liquid level in the tank 53 is lower than a predetermined level, the liquid level control member 531 floats down to open the inlet valve 532, so that the fluid supply source 700 supplies fluid to the tank 53 through the inlet valve 532, and the liquid level in the tank 53 rises as the fluid is supplied. When the level of fluid in tank 53 is above a predetermined level, fluid level control 531 causes intake valve 532 to close, preventing fluid from replenishing tank 53.

In the embodiment shown in fig. 2A and 2B, the liquid level control member 531 switches the on-off state of the liquid inlet valve 532 through lever actuation.

The drain instruction may also be overridden when other conditions are reached.

In other embodiments, the draining command is cancelled after the slave chamber 421 is compressed to a predetermined extent, the switch control member 52 is triggered to stop the flow path for external fluid to be injected into the driving chamber 411, and the driving chamber 411 stops expanding to complete the compression process of the slave chamber 421. Alternatively, when the water supplement command is received, the drain command is cancelled, and the switch control member 52 closes the flow path for injecting the external fluid into the driving chamber 411 after the drain command is cancelled.

The drain 60 may also restrict the spontaneous flow of fluid from the driven chamber 421 by other means.

In the foregoing 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 main body of the driven chamber 421, and the driven chamber 421 is communicated to the transition 424 from the bottom side thereof. By providing valves such as pressure valves or solenoid valves in the drain pipe 60 and the transition point 424, the fluid in the driven 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 driven chamber 421 may communicate with the drain pipe 60 through its bottom side.

The transmission assembly 43 has various structural forms.

In some embodiments, not shown, the transmission assembly 43 includes a primary side push plate 430. One side of the primary side push plate 430 is attached in abutment with the primary side flexible plate 415. When the primary side flexible plate 415 is moved in a direction of withdrawing the inner cavity of the primary side case 412 by the driving external force provided from the fluid supply source 700, the primary side flexible plate 415 transmits the driving external force to the driven assembly 42 through the primary side push plate 430, so that the driven chamber 421 is compressed and becomes small to discharge the fluid in the driven chamber 421. The primary side push plate 430 is more rigid than the primary side flexible plate 415 to stabilize the body shape of the primary side flexible plate 415. After the main side flexible board 415 is attached to the main side pushing board 430, since the shape of the main side pushing board 430 is stable relative to the main side flexible board 415, the shape of the main body located in the middle of the main side flexible board 415 is kept flat, so that each part of the edge of the main side flexible board 415 can be kept attached to the inner wall of the main side shell 412.

In other embodiments, as shown in FIG. 3, the drive assembly 43 includes a primary side push plate 430, a delivery member 433, and a secondary side push plate 432. The transmitter 433 is coupled between the primary side push plate 430 and the secondary side push plate 432, and the secondary side push plate 432 acts on the driven assembly 42.

In other embodiments not shown, the transmission assembly 43 is not limited to a combination of one or more of the primary side push plate 430, the transmission member 433, and the secondary side push plate 432, but can be any other configuration that allows the driven chamber 421 to contract when the primary side flexible plate 415 moves in an expanding manner. The transmitting member 433 is not limited to a single component.

The primary side housing 412 is provided with a primary side port 413, and fluid enters and exits the drive chamber 411 through the primary side port 413. The surface of the primary side flexible sheet 415 used to form the drive chamber 411 is disposed opposite the primary side through opening 413. Primary side housing 412 has a primary side stepped slot 416 between its interior cavity and primary side port 413. The inside diameter of primary side stepped slot 416 is less than the outside diameter of primary side flexible plate 415 and greater than the inside diameter of primary side through opening 413.

The driving assembly 41 can achieve a uniform sealing effect.

The direction of movement of the primary side flexible panel 415 into or out of the interior cavity of the primary side housing 412 is the primary side predetermined path F1. The major side push plate 430 has an outer diameter smaller than that of the major side flexible plate 415 in a planar projection perpendicular to the major side predetermined path F1 to form a gap between the edge of the major side push plate 430 and the inner wall of the major side case 412.

Further, the edge shape of the main side push plate 430 conforms to the shape of the inner wall of the main side case 412 in a planar projection perpendicular to the main side predetermined path F1 to form a uniform gap between the edge of the main side push plate 430 and the inner wall of the main side case 412. In a planar projection of the preset path F1 perpendicular to the primary side, the primary side flexible flap 415 protrudes beyond the edge of the primary side push plate 430 with a uniform radial width, so that the deformation spaces of the respective edges of the primary side flexible flap 415 are uniform, and a uniform sealing effect between the respective edges of the primary side flexible flap 415 and the inner wall of the primary side case 412 is ensured.

The driving assembly 41 may improve sealability by driving external force.

In some embodiments, the primary side flexible plate 415 has a large end 4151 and a small end 4152, the small end 4152 of the primary side flexible plate 415 is connected to the primary side push plate 430, and the large end 4151 is the end of the primary side flexible plate 415 away from the primary side push plate 430, such that the outer diameter of the primary side flexible plate 415 increases in a direction deeper into the primary side housing 412. A primary abutment face 4153 is formed between the primary flexible plate 415 and the primary housing 412. The primary side abutment face 4153 is formed by all or part of the edge of the primary side flexible plate 415 abutting against the primary side housing 412.

In some embodiments, the side of the major side flexible sheet 415 facing away from the major side push sheet 430 is provided with a major side groove 417. The inner diameter of the major side groove 417 is enlarged in a direction away from the major side push plate 430.

In the embodiment shown in FIG. 4, the primary side flexible plate 415 has a large end 4151 and a small end 4152. And a main side groove 417 is formed on the side of the main side flexible plate 415 facing away from the main side push plate 430.

The driven assembly 42 includes a secondary housing 425 and a secondary flexible plate 428 movably received in the secondary housing 425. When the secondary flexible plate 428 moves into or out of the inner cavity of the secondary housing 425, the edge of the secondary flexible plate 428 is kept in contact with the wall surface of the secondary housing 425, so that a driven cavity 421 which is used for containing fluid and has variable space is formed between the secondary flexible plate 428 and the secondary housing 425.

The secondary housing 425 has a secondary port 426. fluid enters and exits the driven chamber 421 through the secondary port 426. The surface of the secondary side flex plate 428 that forms the driven chamber 421 is positioned opposite the secondary side port 426. The secondary side port 426 is not limited to a single one.

The direction of movement of the secondary flexible panel 428 into or out of the cavity of the secondary housing 425 is the secondary preset path F2. The minor push plate 432 has an outer diameter smaller than the outer diameter of the minor flexible plate 428 in a planar projection perpendicular to the minor preset path F2 to form a gap between the edge of the minor push plate 432 and the inner wall of the minor housing 425.

Further, the edge shape of the secondary side pusher 432 coincides with the shape of the inner wall of the secondary side case 425 in a planar projection perpendicular to the secondary side preset path F2 to form a uniform gap between the edge of the secondary side pusher 432 and the inner wall of the secondary side case 425. In a planar projection perpendicular to the minor preset path F2, the minor flexible plate 428 protrudes outward from the edge of the minor push plate 432 with a uniform radial width, so that the deformation space of each edge of the minor flexible plate 428 is uniform, and a uniform sealing effect between each edge of the minor flexible plate 428 and the inner wall of the minor housing 425 is ensured.

Further, a section of any vertical minor-side preset path F2 of the driven chamber 421 is a minor-side section. The section of any of the perpendicular main side predetermined paths F1 of the driving chamber 411 is a main side section. The average area of the secondary side cross-section, which is variable along the secondary side predetermined path F2, is greater than the average area of the primary side cross-section to produce an amplification of the output fluid. In some embodiments, the average area of the secondary side sections is twice the average area of the primary side sections. In other embodiments, the average area of the minor side sections may also be any multiple greater than 1 of the average area of the major side sections.

In some embodiments, the secondary flexible plate 428 has a major end 4281 and a minor end 4282, the minor end 4282 of the secondary flexible plate 428 is coupled to the secondary push plate 432, and the major end 4281 is the end of the secondary flexible plate 428 distal from the secondary push plate 432. A secondary side abutment surface 4283 is formed between the secondary side flexible plate 428 and the secondary side housing 425. The secondary abutment surface 4283 is formed by abutment of all or part of the edge of the secondary flexible plate 428 against the secondary housing 425.

In some embodiments, the side of the secondary flexible plate 428 facing away from the secondary push plate 432 is provided with a secondary groove 4284. The inner diameter of the secondary side groove 4284 varies in expansion in a direction away from the primary side push plate 430.

In the embodiment shown in FIG. 4, the secondary flexible plate 428 has a large end 4281 and a small end 4282, while the side of the secondary flexible plate 428 facing away from the secondary push plate 432 is provided with a secondary groove 4284.

In the embodiment shown in fig. 3, secondary side housing 425 is fixedly attached to primary side housing 412. Air vents 414 are provided between the secondary side housing 425 and the primary side housing 412 to equalize air pressure between the primary side push plate 430 and the secondary side push plate 432.

In some embodiments not shown, the driven assembly 42 is not limited to being composed of the secondary housing 425 and the secondary flexible plate 428, and the driven assembly 42 may also take other configurations capable of forming the driven chamber 421.

Referring to fig. 3, when the driving chamber 411 is in the contracted state, the primary flexible plate 415 cannot move to completely fit the wall surface of the primary housing 412 where the primary through-hole 413 is formed, because of the restriction of the primary stepped groove 416. Thus, when fluid begins to be injected into the drive chamber 411, the contact area of the fluid with the primary side flexible sheet 415 is greater than the open area of the primary side port 413. Under a certain fluid pressure, the primary side stepped groove 416 can increase the contact area between the primary side flexible plate 415 and the fluid, so that the primary side flexible plate 415 in the static state can obtain a sufficient driving external force and start to move in the direction of withdrawing the primary side housing 412.

When the fluid is injected into the driving chamber 411 through the main-side switching valve member 51 and then through the main-side port 413, the momentum of the fluid injected into the driving chamber 411 is transferred to the main-side flexible plate 415 due to the surface of the main-side port 413 facing the main-side flexible plate 415, which is advantageous to accelerate the movement of the main-side flexible plate 415.

When the primary flexible plate 415 moves in a direction to exit the primary housing 412, the primary flexible plate 415 in turn acts on the slave assembly 42 through the primary push plate 430 and the transmission member 433, causing the slave chamber 421 to become less compressed and thus to discharge the fluid in the slave chamber 421. More specifically, the primary side flexible plate 415 pushes the secondary side flexible plate 428 sequentially through the primary side push plate 430, the transmission member 433, and the secondary side push plate 432, so that the secondary side flexible plate 428 is moved deep into the secondary side housing 425, and thus the space of the driven chamber 421 is contracted. Fluid in the driven chamber 421 is expelled from the secondary port 426 to the body 30 under the bias of the secondary flexible plate 428.

During expansion of the drive chamber 411, the pressure of the fluid in the drive chamber 411 acts on the large end 4151 of the primary side flexible plate 415, and the small end 4152 of the primary side flexible plate 415 is subjected to resistance from the driven chamber 421 via the primary side push plate 430. The main side flexible board 415 generates an extension deformation parallel to the board surface direction under the pressure and resistance action of the two sides. The deformation amplitude of the main-side flexible board 415 along the board surface is affected by the magnitude of the driving external force. When the driving external force is small, the extension deformation amplitude of the primary side flexible plate 415 is small, the interaction force between the primary side flexible plate 415 and the inner wall of the primary side case 412 is small, and the partial edge of the primary side flexible plate 415 near the large end 4151 contacts the inner wall of the primary side case 412, so that the area of the primary side abutting face 4153 is small, thereby reducing the resistance received when the primary side flexible plate 415 moves. When the driving external force is large, the extension deformation amplitude of the primary side flexible plate 415 is large, the acting force between the primary side flexible plate 415 and the inner wall of the primary side case 412 is large, the primary side flexible plate 415 is in contact with the inner wall of the primary side case 412 with the entire edge from the large end 4151 to the small end 4152, the area of the primary side abutting face 4153 is large, the sealability between the primary side flexible plate 415 and the primary side case 412 is increased, and the fluid is prevented from leaking under high pressure.

By providing the main side groove 417 on the main side flexible board 415, the main side groove 417 can narrow the thickness of the edge portion of the main side flexible board 415 in the direction parallel to the wall surface of the main side housing 412, and in combination with the pressure of the fluid in the driving chamber 411, the edge portion of the main side flexible board 415 can be facilitated to deform and cling to the inner wall of the main side housing 412, and the sealing property between the main side flexible board 415 and the main side housing 412 can be further improved.

When the movement of the secondary-side flexible plate 428 is restricted by the secondary-side housing 425, the space of the driven chamber 421 cannot be further compressed, and the draining process of the driven chamber 421 is ended.

When the fluid is replenished into the slave chamber 421, the pressure of the fluid injected into the slave chamber 421 moves the secondary flexible plate 428 in a direction to exit the primary side housing 412, and the space of the slave chamber 421 increases, thereby reserving more fluid. As the secondary side flexible plate 428 moves out of the secondary side housing 425, the secondary side flexible plate 428, in turn, transmits the pressure of the fluid to the primary side flexible plate 415 via the secondary side push plate 432, the transmitter 433, and the primary side push plate 430. The primary side flexible plate 415 moves deep into the primary side housing 412 under the pressure of the primary side push plate 430, reducing the space of the drive chamber 411. Meanwhile, the fluid originally in the driving chamber 411 flows into the water tank 53 through the main-side switching valve member 51 due to the contraction of the driving chamber 411.

Similarly, during expansion of the slave chamber 421 due to the addition of water, the pressure of the fluid in the slave chamber 421 acts on the large end 4281 of the secondary flexible plate 428, while the small end 4282 of the secondary flexible plate 428 experiences resistance from the drive chamber 411 via the secondary push plate 432. The secondary flexible plate 428 is subjected to an extension deformation parallel to the plate surface direction by the pressure and resistance on both sides. The magnitude of the deformation of the secondary-side flexible plate 428 along the plate surface is affected by the magnitude between the driving external forces. When the driving external force is small, the extension deformation amplitude of the secondary flexible board 428 is small, the pressure between the secondary flexible board 428 and the inner wall of the secondary housing 425 is small, the partial edge of the secondary flexible board 428 close to the large end 4281 is in contact with the inner wall of the secondary housing 425, the area of the secondary abutment surface 4283 is small, and therefore the resistance received when the secondary flexible board 428 moves is reduced. When the driving external force is large, the area of the secondary contact surface 4283 is large, and the sealing property between the secondary flexible plate 428 and the secondary housing 425 is increased, thereby preventing the fluid from leaking under high pressure.

Similarly, by providing the secondary side groove 4284 on the secondary side flexible plate 428, the secondary side groove 4284 can narrow the thickness of the edge portion of the secondary side flexible plate 428 in the direction parallel to the wall surface of the secondary side housing 425, and in combination with the pressure of the fluid in the driven chamber 421, the edge portion of the secondary side flexible plate 428 can be facilitated to deform and cling to the inner wall of the secondary side housing 425, thereby further improving the sealing performance between the secondary side flexible plate 428 and the secondary side housing 425.

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 utility model. 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 and a main side flexible plate movably contained in the main side shell; when the main side flexible plate enters or exits the inner cavity of the main side shell and moves, the edge of the main side flexible plate is kept in contact with the wall surface of the main side shell, so that a driving cavity which is used for containing fluid and has variable space size is formed between the main side flexible 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 main side flexible plate and the driven assembly, wherein when the main side flexible plate moves in a direction of withdrawing from the inner cavity of the main side housing by a driving external force provided by a fluid supply source, the main side flexible plate transmits the driving external force through the transmission assembly to make the driven cavity become compressed and discharge the fluid in the driven cavity, and a compression space variation amount of the driven cavity is greater than an expansion space variation amount of the driving cavity.

2. The flush mechanism of claim 1, wherein the transmission assembly includes a primary side push plate; one surface of the main side push plate is attached to the main side flexible plate; when the main side flexible plate is moved by a driving external force provided by the fluid supply source along the direction of withdrawing the inner cavity of the main side shell, the main side flexible plate transmits the driving external force to the driven assembly through the main side push plate, so that the driven cavity is compressed to be small and the fluid in the driven cavity is discharged; the main side push plate is more rigid than the main side flexible plate to stabilize the main body shape of the main side flexible plate.

3. The flush mechanism of claim 2, wherein the direction of movement of the primary side flexible panel into or out of the primary side housing interior cavity is a primary side predetermined path; and on the plane projection perpendicular to the main side preset path, the outer diameter of the main side push plate is smaller than that of the main side flexible plate, so that a gap is formed between the edge of the main side push plate and the inner wall of the main side shell.

4. The flushing mechanism of claim 3 wherein the edge of the primary side push plate conforms to the shape of the inner wall of the primary side housing in a planar projection perpendicular to the primary side predetermined path to form a uniform gap between the edge of the primary side push plate and the inner wall of the primary side housing.

5. The flush mechanism as claimed in any one of claims 2 to 4, wherein the main side flexible plate has a large end and a small end, the small end of the main side flexible plate is connected to the main side push plate, and the large end is an end of the main side flexible plate away from the main side push plate, so that the outer diameter of the main side flexible plate is increased in a direction deep into the main side housing.

6. The flush mechanism of any one of claims 2 to 4, wherein a side of the primary side flexible plate facing away from the primary side push plate is provided with a primary side groove; the inner diameter of the main side groove is enlarged and changed along the direction far away from the main side push plate.

7. The flush mechanism of claim 1, wherein said primary side housing is provided with a primary side port through which said fluid enters and exits said drive chamber; the primary side flexible plate has a surface for forming the drive cavity disposed opposite the primary side through opening.

8. The flush mechanism of claim 7, wherein the primary side housing is provided with a primary side stepped trough between its internal cavity and the primary side port; the inner diameter of the main side stepped groove is smaller than the outer diameter of the main side flexible plate and larger than the inner diameter of the main side opening.

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 the 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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