CN215563077U - Valve body mechanism and bathroom equipment - Google Patents

Abstract

The utility model relates to a valve body mechanism and sanitary equipment, wherein the valve body mechanism comprises: the device comprises a first through-flow assembly, a second through-flow assembly and an operation assembly. The first through-flow assembly is provided with a first main runner and a first pilot runner; the on-off state of the first main runner is controlled by the on-off state of the first pilot runner; the second through-flow assembly is provided with a second main runner and a second pilot runner; the on-off state of the second main runner is controlled by the on-off state of the second pilot runner; the front section of the second main flow channel is communicated to the rear section of the first main flow channel; the operation member has a first state in which the first pilot flow path is closed and the second pilot flow path is opened, and a second state in which the first pilot flow path is opened and the second pilot flow path is closed. Therefore, the operating assembly can simultaneously adjust the on-off states of the first main flow channel and the second main flow channel when switching, the frequent operation required when adjusting the water flow state in the sanitary equipment is avoided, and the control efficiency in the sanitary equipment is improved.

Description

Valve body mechanism and bathroom equipment

Technical Field

The utility model relates to the technical field of sanitary equipment, in particular to a valve body mechanism 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 flushing along a waterway with a stream of water to clean or flush away the waste after use.

The intersecting waterways in the sanitary installation may involve switching between two or more states, and separate operating components are generally provided for different waterways, resulting in cumbersome operation of switching between waterway states in the sanitary installation.

For example, a driving chamber and a driven chamber are provided in a part of the toilet bowl, and an external fluid is injected into the driving chamber during a drainage stage, and the fluid stored in the driven chamber is drained by expansion of the driving chamber. In the water replenishing stage, the fluid originally injected into the driving cavity needs to be output into the driven cavity to prepare for the next water injection expansion. In switching from the drain phase to the refill phase, it may be necessary to have in turn an operating assembly between the external fluid supply source and the drive chamber and an operating assembly between the drive chamber and the driven chamber.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a valve body mechanism and a sanitary equipment, which aims at the problem of complicated operation of switching the state of the water path in the sanitary equipment.

A valve body mechanism comprising:

the first through flow assembly is provided with a first main flow channel and a first pilot flow channel; the on-off state of the first main runner is controlled by the on-off state of the first pilot runner;

the second through flow assembly is provided with a second main flow channel and a second pilot flow channel; the on-off state of the second main runner is controlled by the on-off state of the second pilot runner; the front section of the second main flow channel is communicated to the rear section of the first main flow channel; and a process for the preparation of a coating,

and an operation module having a first state in which the first pilot flow path is closed and the second pilot flow path is opened, and a second state in which the first pilot flow path is opened and the second pilot flow path is closed.

The valve body mechanism is characterized in that the first main flow channel is communicated between the fluid supply source and the driving cavity, and the second main flow channel is communicated between the rear section of the first main flow channel and the driven cavity. When the fluid supply source needs to inject fluid into the driving cavity to expand the driving cavity, the first main flow channel is in an open state, the first main flow channel is communicated with the front section of the fluid supply source and the rear section of the fluid supply source, and the fluid provided by the fluid supply source is sequentially input into the driving cavity along the front section and the rear section of the first main flow channel. Meanwhile, the second main flow channel is turned off, so that the front section and the rear section of the second main flow channel are isolated, and the fluid in the driving cavity is prevented from flowing to the driven cavity. When the fluid in the driving cavity needs to be output to the driven cavity, the second main flow channel is opened, and the first main flow channel is closed. The on-off of the first main runner is controlled by the first pilot runner, the on-off of the second runner is controlled by the second pilot runner, and meanwhile, the operation assembly has a first state that the first pilot runner is cut off and the second pilot runner is opened and a second state that the first pilot runner is opened and the second pilot runner is cut off, so that the operation assembly can simultaneously adjust the on-off states of the first main runner and the second main runner during switching, frequent operation during adjustment of the water flow state in the sanitary equipment is avoided, and the control efficiency in the sanitary equipment is improved.

In one embodiment, the operating assembly includes a movable member slidably disposed between the first flow passage assembly and the second flow passage assembly, the movable member is movable to approach the first flow passage assembly and block the first pilot flow passage in the first state, and the movable member is movable to approach the second flow passage assembly and block the second pilot flow passage in the second state.

In one embodiment, the valve body mechanism further comprises a positioning component for maintaining the movable member in the first state or the second state.

In one embodiment, the positioning assembly comprises a primary side magnetic part connected with the first through-flow assembly and a secondary side magnetic part connected with the second through-flow assembly; the movable piece generates magnetic attraction with the primary side magnetic piece in the first state, and the movable piece generates magnetic attraction with the secondary side magnetic piece in the second state.

In one embodiment, the operating assembly further comprises a base plate connected between the first through-flow assembly and the second through-flow assembly and a control handle rotatably connected with the base plate; one of the control handle and the movable piece is provided with a first sliding groove, and the other one of the control handle and the movable piece is connected with a sliding pin, and the sliding pin is accommodated in the first sliding groove.

In one embodiment, the movable member is a plurality of movable members; wherein two of the moving parts are respectively a first moving part and a second moving part; the operating component also has a transition state; in the transition state, the first movable piece blocks the first pilot flow channel, and the second movable piece blocks the second pilot flow channel.

In one embodiment, the operating assembly further comprises a slide slidably disposed between the first and second through-flow assemblies; the first moving part is provided with a first limiting part accommodated in the sliding seat, and the second moving part is provided with a second limiting part accommodated in the sliding seat; along the straight line of the sliding path of the sliding seat, the sum of the lengths of the first limiting part and the second limiting part is smaller than the length of the inner cavity of the sliding seat; the operating assembly further comprises a separation elastic piece connected between the first limiting portion and the second limiting portion, and the separation elastic piece is used for enabling the first moving piece and the second moving piece to move away from each other.

In one embodiment, the operating assembly further comprises a base plate connected between the first through-flow assembly and the second through-flow assembly and a control handle rotatably connected with the base plate; wherein the content of the first and second substances,

one of the control handle and the sliding seat is connected with a push shaft, and the other is provided with a second sliding groove; the push shaft is accommodated in the second sliding groove in a sliding manner, and the control handle drives the sliding seat to slide through the transmission fit between the push shaft and the second sliding groove in the process that the control handle rotates relative to the substrate; and/or the presence of a gas in the gas,

the operating assembly further comprises a reset elastic piece connected between the control handle and the base plate, and the control handle deflects towards the direction close to the first through-flow assembly by the elastic force of the reset elastic piece.

In one of the embodiments, the first and second electrodes are,

the first through-flow assembly is provided with a first pilot cavity and a first drain hole which are communicated, the first pilot cavity and the first drain hole are respectively used as a part of the first pilot flow channel, and an opening of the first drain hole back to the first pilot cavity faces to the movable end of the movable piece; and/or the presence of a gas in the gas,

the second through-flow assembly is provided with a second guide cavity and a second drain hole which are communicated, the second guide cavity and the second drain hole are respectively used as a part of the second guide flow channel, and an opening of the second guide cavity, which is back to the second drain hole, faces the other movable end of the movable piece.

A sanitary fixture, comprising:

the flushing mechanism is provided with a driving cavity with variable space size and a driven cavity with variable space size; when the space of the driving cavity is expanded, the driving cavity enables the space of the driven cavity to be contracted through transmission, and the space variation of the driven cavity is larger than that of the driving cavity;

the body is provided with a liquid pool, and the bottom of the liquid pool is provided with a sewage draining outlet; the fluid discharged from the driven cavity is output to a liquid pool of the body so as to wash the inner wall of the liquid pool, and/or the fluid discharged from the driven cavity is output to a sewage draining outlet so as to drain sewage from the sewage draining outlet; and a process for the preparation of a coating,

the rear section of the first main flow channel is communicated with the driving cavity; the rear section of the second main flow channel is communicated with the driven cavity.

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 flushing mechanism and valve body mechanism of FIG. 1;

FIG. 3 is a schematic structural view of the valve body structure shown in FIG. 2, wherein the operating assembly is in a second state;

FIG. 4 is an enlarged view of the valve body structure of FIG. 3 at A;

FIG. 5A is an enlarged view of the valve body mechanism shown in FIG. 4 at B;

FIG. 5B is an enlarged view of the valve body mechanism shown in FIG. 4 at C;

FIG. 6 is a schematic structural view of the valve body structure shown in FIG. 2 in another state wherein the operating assembly is in the first state;

FIG. 7 is a schematic structural view of a valve body structure of another embodiment of the present invention, wherein the operating assembly is in a second state;

FIG. 8 is an enlarged view of the valve body mechanism shown in FIG. 7 at D;

FIG. 9 is a schematic structural view of the valve body structure of FIG. 7 in another state wherein the operating assembly is in a transitional state;

FIG. 10 is a partial schematic structural view of the valve body structure of FIG. 7 in another state wherein the operating assembly is in the first state.

Reference numerals:

100. sanitary equipment; 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; 40. a flushing mechanism; 41. a drive assembly; 411. a drive chamber; 412. a primary side housing; 413. a main side port; 414. a driving plate; 415. a primary side flexible member; 42. a driven assembly; 421. a driven chamber; 425. a secondary side housing; 426. a secondary side port; 427. a driven plate; 428. a secondary-side flexible member; 43. a transmission assembly; 431. a transfer member; 50. a valve body mechanism; 51. a first through-flow assembly; 511. a first main flow passage; 511a/521a, the previous paragraph; 511b/521b, the rear section; 512. a first pilot flow channel; 512a, a first pilot cavity; 512b, a first drain hole; 513. a first valve housing; 514. a first diaphragm; 514a, a first inflow hole; 52. a second vent assembly; 521. a second main flow passage; 522. a second pilot runner; 522a, a second pilot cavity; 522b, a second drain hole; 523. a second valve housing; 524. a second diaphragm; 524a, a second inflow hole; 53. an operating component; 531a, a first movable member; 531b, a second movable member; 531c, a magnetic moving part; 531d, a flexible sealing sleeve; 531e, a flexible sealing ring; 531f, a first stopper; 531g, a second limiting part; 532. a substrate; 533. a control handle; 533a, a first chute; 533b, sliding pin; 533c, a push shaft; 533d, a second chute; 533e, a reset elastic piece; 534. a slide base; 535. separating the elastic member; 54. a positioning assembly; 541. a primary side magnetic member; 542. a secondary side magnetic member; 61. a shrinkage detection member; 62. a secondary side switching valve element; 63. a liquid level detection member; 64. a drain pipe; 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.

Referring to fig. 1, the sanitary ware 100 includes a main body 30, a flushing mechanism 40 connected to the main body 30, and a valve body mechanism 50 connected to the flushing mechanism 40. The body 30 is provided with a liquid tank 31, and the bottom of the liquid tank 31 is provided with a sewage outlet 311. 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.

In the embodiment shown in fig. 2, the flush mechanism 40 includes a drive chamber 411 having a variable spatial size and a driven chamber 421 having a variable spatial size. When the space of the driving cavity 411 is expanded, the driving cavity 411 enables the driven cavity 421 to be contracted through transmission, and the space variation of the driven cavity 421 is larger than that of the driving cavity 411. In some embodiments, the fluid discharged from the driven chamber 421 is output to the liquid pool 31 of the body 30 to flush the inner wall of the liquid pool 31. In other embodiments, fluid discharged from the driven chamber 421 is output to the soil discharge opening 311 to discharge soil from the soil discharge opening 311.

The valve body mechanism 50 is used to control communication or isolation between the fluid supply source 700 and the drive chamber 411, and communication or isolation between the drive chamber 411 and the driven chamber 421.

During operation of the flushing mechanism 40, fluid may be injected into the driven chamber 421 in advance to fully expand the internal space of the driven chamber 421, and the driving chamber 411 is emptied in advance to allow the driving chamber 411 to be 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 under the control of the valve body mechanism 50, the driving chamber 411 is spatially expanded by the fluid filling. 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. Because the space variation of the driven chamber 421 is larger 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 larger than that entering the driving chamber 411, thereby increasing the amount of discharged water in a short time and improving the flushing or pollution discharge effect. After the water discharge of the driven chamber 421 is finished, the valve body mechanism 50 controls the closing of the flow passage between the driving chamber 411 and the fluid supply source 700, controls the fluid to supplement the driven chamber 421, counteracts the driving chamber 411 when the driven chamber 421 expands, and guides and supplements the fluid discharged from the driving chamber 411 to the driven chamber 421 through the valve body mechanism 50.

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 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.

In the embodiment shown in fig. 2, the sanitary ware 100 further includes a liquid level detecting member 63 disposed in the driven chamber 421 in a floating manner, and a secondary side switching valve member 62 in transmission fit with the liquid level detecting member 63. The secondary side switching valve element 62 is provided between the driven chamber 421 and the fluid supply source 700 to control the water replenishing process of the driven chamber 421. In some embodiments, the liquid level detection member 63 is a float, and the floating and lifting directions of the liquid level detection member 63 are limited so that the liquid level detection member 63 can be accurately engaged with the secondary-side switching valve member 62.

In some embodiments, before the driven chamber 421 starts to start draining, the sanitary fixture 100 is in a ready state, the driving chamber 411 is in a contracted state, and the flow path of the valve body mechanism 50 disposed between the fluid supply source 700 and the driving chamber 411 is closed. The driven chamber 421 and the drain pipe 64 are filled with sufficient fluid to float the liquid level detecting element 63 to a higher level, and after the liquid level detecting element 63 floats to a corresponding level, the pin of the secondary side switching valve element 62 is actuated by mechanical, electrical or other cooperation, so that the secondary side switching valve element 62 isolates the driven chamber 421 from the fluid supply source 700, thereby stopping the fluid supply from the fluid supply source 700 to the driven chamber 421.

In some embodiments, after the draining of the driven chamber 421 is initiated, the flow passage of the valve body mechanism 50 disposed between the fluid supply source 700 and the driving chamber 411 is opened, while the flow passage of the valve body mechanism 50 disposed between the driving chamber 411 and the driven chamber 421 is closed. The fluid from the fluid supply source 700 is input into the driving chamber 411 through the valve body mechanism 50, the driving chamber 411 is expanded, and the driving chamber 411 is transmitted through the transmission assembly 43, so that the driven chamber 421 is contracted and the stored water is discharged to the body 30 of the sanitary ware 100 through the water discharge pipe 64.

Referring to fig. 2, as 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 is discharged into the body 30 through the drain pipe 64. In some embodiments, when the inner wall of the driven chamber 421 contracts and deforms to abut against the contraction detection member 61 disposed in the driven chamber 421, the contraction detection member 61 plays a role in transmitting between the inner wall of the driven chamber 421 and the valve body mechanism 50, and switches the valve body mechanism 50 to a state where the flow passage of the valve body mechanism 50 disposed between the fluid supply source 700 and the driving chamber 411 is closed, and the flow passage of the valve body mechanism 50 disposed between the driving chamber 411 and the driven chamber 421 is opened.

Referring to fig. 2, further, after the state of the valve body mechanism 50 is switched, the driving external force acting in the driving chamber 411 disappears, and due to the loss of the original balance, the space of the driven chamber 421 is expanded by the instantaneous expansion in the driven chamber 421, and before the fluid supply source 700 supplies fluid to the driven chamber 421 through the secondary side switching valve element 62, the fluid level in the driven chamber 421 drops, the fluid level detecting element 63 floats downward and is far away from the secondary side switching valve element 62, so that the secondary side switching valve element 62 loses the action of the fluid level detecting element 63 and is reset, and the secondary side switching valve element 62 connects the driven chamber 421 with the fluid supply source 700. The fluid supply 700 can thus replenish the driven chamber 421 with fluid via the secondary side switching valve element 62. 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 driving chamber 411 conducts fluid when compressed, which fluid is replenished to the driven chamber 421 via a flow path provided by the valve body means 50 between the driving chamber 411 and the driven chamber 421.

Referring to fig. 2, the fluid level in the slave chamber 421 continues to rise as the fluid supply 700 is replenished before the refill process of the slave chamber 421 is nearly completed. After the liquid level detecting element 63 floats to a corresponding height, the pin in the secondary side switching valve element 62 is actuated through mechanical or electrical action, the secondary side switching valve element 62 isolates the driven chamber 421 from the fluid supply source 700 again, so that the fluid supply source 700 stops replenishing the fluid in the driven chamber 421, the water replenishing process of the driven chamber 421 is finished, and the drainage device enters a ready state again.

As shown in fig. 2, the flushing mechanism 40 includes a driving assembly 41, a driven assembly 42 and a transmission assembly 43, and the valve body mechanism 50 is used for controlling the working states of the driving assembly 41 and the driven assembly 42, or controlling the on-off states of the external fluid supply source 700 and the driving assembly 41 or the driven assembly 42. The body 30 may have a washing waterway 32 to guide the fluid in the drain 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 drain outlet 311, wherein the spray water path 33 guides the fluid in the drainage device to the liquid pool 31 and discharges the dirt in the liquid pool 31 through the drain outlet 311 and the siphon 34. Further, the washing water path 32 discharges the fluid to the inner wall of the liquid pool 31 through the liquid outlet hole 321.

In the embodiment shown in fig. 2, the drive assembly 41 has a drive chamber 411 of variable size for receiving a fluid. The driven assembly 42 has a driven chamber 421 of variable size for receiving a fluid. The transmission assembly 43 is disposed between the driving assembly 41 and the driven assembly 42. When the driving chamber 411 is expanded by the driving external force, the transmission assembly 43 can be driven, and the driving external force is transmitted by the transmission assembly 43, so that the driven chamber 421 is compressed and reduced to discharge the fluid stored in the driven chamber 421. When the driving chamber 411 is expanded by the driving external force, the expansion space variation amount is smaller than the compression space variation amount of the driven chamber 421.

In the embodiment shown in fig. 2, the actuation assembly 41 includes a primary side housing 412, a primary side plate 414, and a primary side flexible member 415. The active plate 414 is movably disposed through the interior cavity of the primary side housing 412, and the primary side flexible member 415 is connected between the primary side housing 412 and the active plate 414. The active plate 414 is a primary side preset path with respect to the active direction of the primary side housing 412, which is also the expanding direction or the contracting direction of the driving chamber 411. Along the expansion direction of the driving chamber 411, the driving plate 414 and the primary side housing 412 are hermetically connected to different parts of the primary side flexible member 415 to form the driving chamber 411 in a matching manner. 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 housing 412 is provided with a primary side port 413, and fluid flows into or out of the drive chamber 411 through the primary side port 413.

In the embodiment shown in fig. 2, the primary side flexible member 415 has a cylindrical shape, 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 primary side housing 412 or fixedly embedded in the primary 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.

Specifically, when the driving chamber 411 is contracted, the active plate 414 moves in a direction to penetrate the main side case 412, and when the driving chamber 411 is expanded, the active plate 414 moves in a direction to retreat from the main side case 412.

In some embodiments not shown, the driving assembly 41 may also form the driving chamber 411 with a variable size through other structures.

In the embodiment shown in fig. 2, 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 with respect to the moving direction of the secondary side housing 425. Along the direction of expansion of the driven chamber 421, i.e., the secondary side predetermined path, the driven plate 427 and the secondary side housing 425 are sealingly connected to different portions of the secondary side 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.

Further, as shown in fig. 2, 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.

Specifically, when the driven chamber 421 contracts, the driven plate 427 moves in a direction of going deep into the secondary housing 425, and when the driven chamber 421 expands, the driven plate 427 moves in a direction of going out of the secondary housing 425.

In some embodiments not shown, the driven assembly 42 may also form the driven cavity 421 with a variable size through other structures.

In the embodiment shown in FIG. 2, the drive assembly 43 includes a transmission 431, and the transmission 431 is 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 431, and thus the space of the driven chamber 421 is contracted.

In some embodiments not shown, drive assembly 43 is not limited to a single transmission 431, and drive assembly 43 may be any structure that allows driven chamber 421 to compress as drive chamber 411 expands.

The present invention provides a valve body mechanism 50.

Referring to fig. 2 to 10, the valve body mechanism 50 includes: a first through-flow assembly 51, a second through-flow assembly 52 and an operating assembly 53. The first through-flow assembly 51 includes a first main flow passage 511 and a first pilot flow passage 512. The on/off state of first main flow passage 511 is controlled by the on/off state of first pilot flow passage 512. Second flow passage assembly 52 is provided with a second main flow passage 521 and a second pilot flow passage 522. The opening and closing of second main flow passage 521 are controlled by the opening and closing state of second pilot flow passage 522. The front section 521a of the second main flow passage 521 communicates with the rear section 511b of the first main flow passage 511. Operation unit 53 has a first state in which first pilot flow path 512 is blocked and second pilot flow path 522 is opened, and a second state in which first pilot flow path 512 is opened and second pilot flow path 522 is blocked.

By communicating the first main flow passage 511 between the fluid supply source 700 and the driving chamber 411, while communicating the second main flow passage 521 between the rear section 511b of the first main flow passage 511 and the driven chamber 421. When the fluid supply source 700 needs to inject fluid into the driving chamber 411 to expand the driving chamber, the first main channel 511 is in an open state, such that the first main channel 511 communicates with the front section 511a of the fluid supply source 700 and the rear section 511b thereof, and the fluid supplied by the fluid supply source 700 is sequentially input into the driving chamber 411 along the front section 511a and the rear section 511b of the first main channel 511. Meanwhile, the second main flow channel 521 is closed, so that the front section 521a and the rear section 521b of the second main flow channel 521 are isolated, and the fluid in the driving chamber 411 is prevented from flowing to the driven chamber 421. When the fluid in the driving chamber 411 needs to be output to the driven chamber 421, the second main flow passage 521 is opened, and the first main flow passage 511 is closed. Since the on/off of the first main flow passage 511 is controlled by the first pilot flow passage 512, the on/off of the second main flow passage 521 is controlled by the second pilot flow passage 522, and the operation assembly 53 has a first state in which the first pilot flow passage 512 is closed and the second pilot flow passage 522 is open and a second state in which the first pilot flow passage 512 is open and the second pilot flow passage 522 is closed, the on/off state of the first main flow passage 511 and the second main flow passage 521 can be simultaneously adjusted by the operation assembly 53 when switching, thereby avoiding the need of frequent operation when adjusting the water flow state in the sanitary ware 100, and improving the control efficiency in the sanitary ware 100.

In some embodiments, the operating member 53 includes a movable member slidably disposed between the first through-flow member 51 and the second through-flow member 52, the movable member in a first state moves to close to the first through-flow member 51 and blocks the first pilot flow path 512, and the movable member in a second state moves to close to the second through-flow member 52 and blocks the second pilot flow path 522.

In some embodiments, the first through-flow assembly 51 has a first pilot cavity 512a and a first drain hole 512b, which are connected to each other, the first pilot cavity 512a and the first drain hole 512b are respectively used as a part of the first pilot flow channel 512, and an opening of the first drain hole 512b, which faces away from the first pilot cavity 512a, faces the movable end of the movable member.

In the embodiment shown in fig. 3 and 5A, the first through-flow assembly 51 comprises a first valve housing 513 and a first diaphragm 514 movably disposed in the first valve housing 513. The front section 511a and the rear section 511b of the first main flow passage 511 are respectively formed in the first valve housing 513, the inner port of the rear section 511b of the first main flow passage 511 faces one surface of the first diaphragm 514, and the outer port of the rear section 511b of the first main flow passage 511 is used for communicating with the main side port 413. The other surface of the first diaphragm 514 is used to form a first pilot chamber 512a with the first valve housing 513. The first diaphragm 514 is provided with a first inflow hole 514a, the fluid inputted from the front section 511a of the first main flow passage 511 can enter the first pilot chamber 512a from the first inflow hole 514a, and the change in volume of the fluid stored in the first pilot chamber 512a causes the space of the first pilot chamber 512a to expand or contract, and the first diaphragm 514 moves away from or close to the inner port of the rear section 511b of the first main flow passage 511.

In some embodiments, the second flow passage assembly 52 is provided with a second pilot chamber 522a and a second drain hole 522b, which are communicated with each other, the second pilot chamber 522a and the second drain hole 522b are respectively used as a part of the second pilot flow passage 522, and an opening of the second drain hole 522b, which faces away from the second pilot chamber 522a, faces the movable end of the movable member.

In the embodiment shown in fig. 3 and 5B, the second flow passage assembly 52 includes a second valve housing 523 and a second diaphragm 524 movably disposed in the second valve housing 523. The front section 521a and the rear section 521b of the second main flow passage 521 are formed in the second valve casing 523, respectively, the inner port of the rear section 521b of the second main flow passage 521 faces one surface of the second diaphragm 524, and the outer port of the rear section 521b of the second main flow passage 521 is used to communicate with the secondary side port 426. The other surface of the second diaphragm 524 is used to form a second pilot chamber 522a with the second valve housing 523. The second diaphragm 524 is provided with a second inlet hole 524a, so that the fluid introduced from the front section 521a of the second main flow passage 521 can enter the second pilot chamber 522a through the second inlet hole 524a, and the change in volume of the fluid stored in the second pilot chamber 522a causes the space of the second pilot chamber 522a to expand or contract, and the second diaphragm 524 moves away from or closer to the port in the rear section 521b of the second main flow passage 521.

The operating assembly 53 has various structural forms.

In some embodiments, not shown, the moveable member is single, with one end of the single moveable member being used to block the first pilot flow passage 512 and the other end of the single moveable member being used to block the second pilot flow passage 522.

In some embodiments, the movable members are multiple, two of the multiple movable members are a first movable member 531a and a second movable member 531b, respectively, an end of the first movable member 531a is used for blocking the first pilot flow path 512, and an end of the second movable member 531b is used for blocking the second pilot flow path 522.

In the embodiment shown in fig. 3 and 7, there are two movable members. One end of the first movable member 531a is abutted against the opening of the first drain hole 512b opposite to the first pilot chamber 512a to block the first pilot flow channel 512. One end of the second movable member 531b is adapted to abut against the opening of the second drain hole 522b facing away from the second pilot chamber 522a to block the second pilot flow passage 522. Specifically, the first movable member 531a is slidably disposed through the first valve housing 513, and the sliding path of the first movable member 531a points to the opening of the first drain hole 512b facing away from the first pilot chamber 512a, the second movable member 531b is slidably disposed through the second valve housing 523, and the sliding path of the second movable member 531b points to the opening of the second drain hole 522b facing away from the second pilot chamber 522 a. More specifically, the first movable member 531a and the second movable member 531b are respectively cylindrical.

Further, as shown in fig. 5A and 5B, in order to improve the blocking effect on the fluid, a flexible sealing sleeve 531d is sleeved on one end of the first movable member 531a, which is used for abutting against the first drainage hole 512B, so as to sufficiently adhere to the edge around the first drainage hole 512B. One end of the second movable member 531b abutting against the second vent hole 522b is sleeved with a flexible sealing sleeve 531d to sufficiently fit the edge around the second vent hole 522 b.

Further, as shown in fig. 4, in order to prevent the fluid from leaking through the gap, a flexible seal 531e is in contact with the first movable member 531a and the first valve housing 513, and a flexible seal 531e is in contact with the second movable member 531b and the second valve housing 523.

In some embodiments, the operating assembly 53 also has a transition state. In the transition state, the first movable element 531a blocks the first pilot flow passage 512, and the second movable element 531b blocks the second pilot flow passage 522. During the switching of the operating member 53 from the first state to the second state, the operating member 53 undergoes a transition state, or during the switching of the operating member 53 from the second state to the first state, the operating member 53 undergoes a transition state, so as to avoid a situation in which the first pilot flow passage 512 and the second pilot flow passage 522 are simultaneously conducted during the switching between the first state and the second state.

In the embodiment shown in fig. 7 and 8, the operating assembly 53 further comprises a slide 534 slidably disposed between the first and second through- flow assemblies 51, 52. The first movable member 531a has a first position-limiting portion 531f accommodated in the sliding seat 534, and the second movable member 531b has a second position-limiting portion 531g accommodated in the sliding seat 534. Along the straight line of the sliding path of the sliding seat 534, the sum of the lengths of the first limiting portion 531f and the second limiting portion 531g is smaller than the length of the inner cavity of the sliding seat 534. The operating assembly 53 further includes a separating elastic member 535 connected between the first limiting portion 531f and the second limiting portion 531g, and the separating elastic member 535 is used for moving the first movable member 531a and the second movable member 531b away from each other.

Specifically, as shown in fig. 8, the first and second position-limiting portions 531f and 531g have concave cross sections, respectively, to form a semi-closed space for receiving and limiting the end of the separating elastic member 535. Since the sum of the lengths of the first and second position-limiting portions 531f and 531g is less than the length of the inner cavity of the sliding seat 534, the first and second movable members 531a and 531b have a space for relative movement in the direction along the sliding path of the sliding seat 534.

When switching to the first state, as shown in fig. 10, a user toggles the slider 534 close to the first through-flow assembly 51, and during the movement of the slider 534, the inner wall of the slider 534 acts on the second limiting portion 531g, so that the second limiting portion 531g moves away from the second drain hole 522b and close to the first through-flow assembly 51, and the separation elastic member 535 is compressed by the second limiting portion 531 g. The second position-limiting portion 531g or the separating elastic member 535 acts on the first position-limiting portion 531f to push the first movable member 531a to be close to the first through-flow assembly 51, so that the end of the first movable member 531a blocks the opening of the first vent hole 512 b.

When the switch is switched to the second state, as shown in fig. 7 and 8, the user toggles the slider 534 close to the second flow-through assembly 52, and during the movement of the slider 534, the inner wall of the slider 534 acts on the first position-limiting portion 531f, so that the first position-limiting portion 531f leaves the first vent hole 512b and moves close to the second flow-through assembly 52, and the separation elastic member 535 is compressed by the first position-limiting portion 531 f. The first position-limiting portion 531f or the separating elastic member 535 acts on the second position-limiting portion 531g to push the second movable member 531b to be close to the second flow-through assembly 52, so that the end of the second movable member 531b blocks the opening of the second vent hole 522 b.

In the transitional state, as shown in fig. 9, the sliding seat 534 is shifted to pass through the middle position of the sliding path, the first limiting portion 531f and the second limiting portion 531g are separated from each other and abut against the inner wall of the sliding seat 534 under the action of the separation elastic member 535, the distance between the end of the first moving member 531a and the end of the second moving member 531b reaches the maximum distance limited by the length of the inner cavity of the sliding seat 534, so that the end of the first moving member 531a abuts against the opening of the first drain hole 512b, and the end of the second moving member 531b abuts against the opening of the second drain hole 522 b.

In some embodiments, the operating assembly 53 further includes a base plate 532 coupled between the first and second flow assemblies 51, 52 and a control handle 533 rotatably coupled to the base plate 532. One of the control handle 533 and the movable member is provided with a first sliding groove 533a, and the other is connected with a sliding pin 533b, and the sliding pin 533b is accommodated in the first sliding groove 533 a. By turning the control handle 533, the movable member can be moved from the first through-flow assembly 51 to the second through-flow assembly 52, or the movable member can be moved from the second through-flow assembly 52 to the first through-flow assembly 51, so that the state of the movable member can be switched conveniently and laborsavingly.

In some embodiments, which are not shown in the drawings, the first sliding groove 533a is disposed on the control handle 533, and an extending direction of the first sliding groove 533a is parallel to a length direction of the control handle 533. And a sliding pin 533b is connected to the movable member, more specifically, the sliding pin 533b is connected to the first movable member 531a or the second movable member 531 b. When the control handle 533 deflects relative to the substrate 532, the control handle 533 pushes the sliding pin 533b through the wall body around the first sliding groove 533a, and the sliding pin 533b drives the movable member to move, and meanwhile, the sliding pin 533b slides in the first sliding groove 533 a.

In some embodiments, not shown, the sliding pin 533b is connected to the control handle 533, and the first sliding groove 533a is disposed on the first movable member 531a or the second movable member 531b, and the control handle 533 pushes the first movable member 531a and the second movable member 531b to move through the sliding pin 533 b. The first sliding groove 533a extends in a direction perpendicular to the length direction of the first movable member 531a or the second movable member 531 b.

In some embodiments, one of the control handle 533 and the slider 534 is connected to the push shaft 533c, and the other is provided with a second sliding groove 533 d. The push shaft 533c is slidably received in the second sliding groove 533d, and the control handle 533 drives the sliding seat 534 to slide through the transmission fit between the push shaft 533c and the second sliding groove 533d when the control handle 533 rotates relative to the substrate 532. By turning the control handle 533, the movable member can be moved from the first through-flow assembly 51 to the second through-flow assembly 52, or the movable member can be moved from the second through-flow assembly 52 to the first through-flow assembly 51, so that the state of the movable member can be switched conveniently and laborsavingly.

In the embodiment shown in fig. 8, the push shaft 533c is connected to the control handle 533, and the second sliding groove 533d is provided on the sliding seat 534, and the extending direction of the second sliding groove 533d is perpendicular to the sliding path of the sliding seat 534. When the control handle 533 deflects relative to the substrate 532, the control handle 533 pushes the sliding base 534 to move toward the first circulating assembly 51 or the second circulating assembly 52 via the pushing shaft 533 c. More specifically, the first position-limiting portion 531f, the second position-limiting portion 531g and the separating elastic member 535 are located inside the sliding seat 534, and the control handle 533 is located outside the sliding seat 534.

In the embodiment shown in fig. 8, the operating assembly 53 further includes a return elastic member 533e connected between the control handle 533 and the base plate 532, and the elastic force of the return elastic member 533e deflects the control handle 533 toward the first through-flow assembly 51. So that only a single direction of drive force, i.e., from the first through-flow assembly 51 to the second through-flow assembly 52, needs to be provided when the control handle 533 is engaged. When the driving force is removed, the control handle 533 is deflected toward the first through-flow assembly 51 by the pulling of the return spring 533 e. Specifically, the return elastic member 533e is a tension spring.

In some embodiments, the valve body mechanism 50 further includes a positioning assembly 54, and the positioning assembly 54 is used for maintaining the movable member in the first state or the second state, so as to maintain the first pilot flow channel 512 connected during the fluid discharge from the driven chamber 421, and connect the driving chamber 411 to the fluid supply source 700 through the first main flow channel 511. Or the second pilot flow passage 522 can be kept open during the fluid supplement process of the driven chamber 421, so that the fluid in the driving chamber 411 can be circulated to the driven chamber 421 through the second main flow passage 521.

In the embodiment shown in FIG. 4, the positioning assembly 54 includes a primary side magnetic member 541 coupled to the first through-flow assembly 51 and a secondary side magnetic member 542 coupled to the second through-flow assembly 52. The movable element is magnetically attracted to the primary magnetic element 541 in the first state, and magnetically attracted to the secondary magnetic element 542 in the second state. Specifically, at least one of the plurality of movable members is a magnetic movable member 531c, and the magnetic movable member 531c is connected between the first movable member 531a and the second movable member 531 b. Further, as shown in fig. 4, the slide pin 533b is connected to the magnetic movable piece 531c, and the first slide groove 533a is provided on the control handle 533.

Before the drainage of the driven chamber 421 is started, in the embodiment shown in fig. 6, the operating member 53 is in the first state, that is, the control handle 533 is pulled toward the first through-flow member 51, and the first movable element 531a abuts against the opening of the first drain hole 512b, so that the first pilot flow passage 512 is closed. Since the front section 511a of the first main flow passage 511 is connected to the fluid supply source 700, the fluid provided by the fluid supply source 700 is injected into the first guide cavity 512a through the first inflow hole 514a, and since the fluid in the first guide cavity 512a cannot be discharged through the first outflow hole 512b, the fluid in the first guide cavity 512a gradually accumulates, the space of the first guide cavity 512a expands and the first diaphragm 514 is pushed to abut against the inner port of the rear section 511b of the first main flow passage 511, the front section 511a and the rear section 511b of the first main flow passage 511 are blocked by the first diaphragm 514, and therefore the fluid provided by the fluid supply source 700 cannot be input into the driving cavity 411.

When the drainage of the driven chamber 421 is started, in the embodiment shown in fig. 3 and 4, the operating member 53 is switched to the second state, and the first movable element 531a is separated from the opening of the first drain hole 512b, so that the first pilot flow path 512 is opened. At the same time, the control handle 533 is pulled toward the second flow passage assembly 52, and the second movable element 531b abuts against the opening of the second drain hole 522b, so that the second pilot flow passage 522 is closed. The fluid in the first guide chamber 512a is discharged through the first drain hole 512b to contract the space of the first guide chamber 512a, and the first diaphragm 514 is separated from the inner port of the rear section 511b of the first main flow passage 511 to communicate the front section 511a of the first main flow passage 511 with the rear section 511b of the first main flow passage 511. Since the rear segment 511b of the first main flow passage 511 is communicated to the driving chamber 411, the fluid supplied from the fluid supply source 700 can be transferred to the driving chamber 411 through the first main flow passage 511, so that the driving chamber 411 is expanded.

Since the front section 521a of the second main flow passage 521 is communicated to the rear section 511b of the first main flow passage 511, the fluid is output from the driving chamber 411 through the first main flow passage 511, and is also input to the second pilot chamber 522a through the front section 521a of the second main flow passage 521 and the second inflow hole 524 a. The second movable element 531b abuts against the opening of the second drain hole 522b, the fluid in the second pilot chamber 522a cannot be discharged and gradually accumulates, the space of the second pilot chamber 522a expands to push the second diaphragm 524 to abut against the inner port of the rear section 521b of the second main flow passage 521, the front section 521a and the rear section 521b of the second main flow passage 521 are blocked by the second diaphragm 524, and therefore the fluid in the driving chamber 411 cannot be input to the driven chamber 421.

When the driven chamber 421 is started to replenish water, in the embodiment shown in fig. 6, the operating member 53 is switched back to the first state again, that is, the control handle 533 is pulled toward the first through-flow member 51, and the first movable element 531a abuts against the opening of the first drain hole 512b, so that the first pilot flow passage 512 is closed. The fluid supplied from the fluid supply source 700 is injected into the first pilot chamber 512a through the first inflow hole 514a, the first diaphragm 514 is again abutted against the inner end of the rear section 511b of the first main flow passage 511, and the front section 511a and the rear section 511b of the first main flow passage 511 are separated from each other. Meanwhile, since the second movable element 531b is separated from the opening of the second drain hole 522b, the fluid in the second pilot chamber 522a is discharged through the second drain hole 522b, so that the space of the second pilot chamber 522a is contracted, and the second diaphragm 524 is separated from the inner port of the rear section 521b of the second main flow path 521, so that the front section 521a of the second main flow path 521 is communicated with the rear section 521b of the second main flow path 521. When the driving chamber 411 is compressed by the expansion of the driven chamber 421, the fluid discharged from the driving chamber 411 is discharged to the driven chamber 421 through the rear section 511b of the first main flow passage 511 and the second main flow passage 521.

Specifically, in the embodiment shown in fig. 2, the control handle 533 can be switched from the second state to the first state by the transmission of the contraction detecting member 61. The operating assembly 53 can also be switched in state when the driven chamber 421 is retracted to a predetermined extent by the hall effect principle.

In the embodiment shown in fig. 3, since the control handle 533 can be manually operated in addition to being controlled by the solenoid valve, when the control handle 533 is manually operated, the moving time of the control handle 533 may be slow, so that the control handle 533 may have a long pause time at the middle position. When the control handle 533 stays at the middle position, the first movable member 531a leaves the opening of the first drain hole 512b, and the second movable member 531b leaves the opening of the second drain hole 522b, and if the control handle 533 stays at the middle position for too long, the first main flow passage 511 and the second main flow passage 521 may be opened at the same time, so that the fluid provided by the fluid supply source 700 is simultaneously delivered to the driving chamber 411 and the driven chamber 421, which affects the normal operation of the sanitary ware 100. In the embodiment shown in fig. 7, since the operation element 53 is switched between the first state and the second state to go through the transition state, when the control handle 533 stays at the intermediate position, the operation element 53 is in the transition state, such that the first movable member 531a abuts against the opening of the first drain hole 512b, and the second movable member 531b abuts against the opening of the second drain hole 522b, thereby preventing the fluid provided by the fluid supply source 700 from being simultaneously delivered to the driving chamber 411 and the driven chamber 421, and ensuring the normal operation of the sanitary ware 100.

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 valve body mechanism, comprising:

the first through flow assembly is provided with a first main flow channel and a first pilot flow channel; the on-off state of the first main runner is controlled by the on-off state of the first pilot runner;

the second through flow assembly is provided with a second main flow channel and a second pilot flow channel; the on-off state of the second main runner is controlled by the on-off state of the second pilot runner; the front section of the second main flow channel is communicated to the rear section of the first main flow channel; and a process for the preparation of a coating,

and an operation module having a first state in which the first pilot flow path is closed and the second pilot flow path is opened, and a second state in which the first pilot flow path is opened and the second pilot flow path is closed.

2. The valve body mechanism of claim 1, wherein the operating assembly includes a movable member slidably disposed between the first and second flow assemblies, the movable member being movable in the first state to approach the first flow assembly and block the first pilot flow passage, and the movable member being movable in the second state to approach the second flow assembly and block the second pilot flow passage.

3. The valve body mechanism of claim 2, further comprising a positioning assembly for maintaining the moveable member in the first state or the second state.

4. The valve body mechanism of claim 3, wherein the positioning assembly comprises a primary side magnetic member connected to the first through-flow assembly and a secondary side magnetic member connected to the second through-flow assembly; the movable piece generates magnetic attraction with the primary side magnetic piece in the first state, and the movable piece generates magnetic attraction with the secondary side magnetic piece in the second state.

5. The valve body mechanism of any one of claims 2 to 4, wherein the operating assembly further comprises a base plate connected between the first and second through-flow assemblies and a control handle rotatably connected to the base plate; one of the control handle and the movable piece is provided with a first sliding groove, and the other one of the control handle and the movable piece is connected with a sliding pin, and the sliding pin is accommodated in the first sliding groove.

6. The valve body mechanism of claim 2, wherein the movable member is plural; wherein two of the moving parts are respectively a first moving part and a second moving part; the operating component also has a transition state; in the transition state, the first movable piece blocks the first pilot flow channel, and the second movable piece blocks the second pilot flow channel.

7. The valve body mechanism of claim 6, wherein the operating assembly further comprises a slide slidably disposed between the first and second flow assemblies; the first moving part is provided with a first limiting part accommodated in the sliding seat, and the second moving part is provided with a second limiting part accommodated in the sliding seat; along the straight line of the sliding path of the sliding seat, the sum of the lengths of the first limiting part and the second limiting part is smaller than the length of the inner cavity of the sliding seat; the operating assembly further comprises a separation elastic piece connected between the first limiting portion and the second limiting portion, and the separation elastic piece is used for enabling the first moving piece and the second moving piece to move away from each other.

8. The valve body mechanism of claim 7, wherein the operating assembly further comprises a base plate connected between the first and second flow assemblies and a control handle rotatably connected to the base plate; wherein the content of the first and second substances,

one of the control handle and the sliding seat is connected with a push shaft, and the other is provided with a second sliding groove; the push shaft is accommodated in the second sliding groove in a sliding manner, and the control handle drives the sliding seat to slide through the transmission fit between the push shaft and the second sliding groove in the process that the control handle rotates relative to the substrate; and/or the presence of a gas in the gas,

the operating assembly further comprises a reset elastic piece connected between the control handle and the base plate, and the control handle deflects towards the direction close to the first through-flow assembly by the elastic force of the reset elastic piece.

9. The valve body mechanism of claim 2,

the first through-flow assembly is provided with a first pilot cavity and a first drain hole which are communicated, the first pilot cavity and the first drain hole are respectively used as a part of the first pilot flow channel, and an opening of the first drain hole back to the first pilot cavity faces to the movable end of the movable piece; and/or the presence of a gas in the gas,

the second through-flow assembly is provided with a second guide cavity and a second drain hole which are communicated, the second guide cavity and the second drain hole are respectively used as a part of the second guide flow channel, and an opening of the second guide cavity, which is back to the second drain hole, faces the other movable end of the movable piece.

10. A sanitary installation, comprising:

the flushing mechanism is provided with a driving cavity with variable space size and a driven cavity with variable space size; when the space of the driving cavity is expanded, the driving cavity enables the space of the driven cavity to be contracted through transmission, and the space variation of the driven cavity is larger than that of the driving cavity;

the body is provided with a liquid pool, and the bottom of the liquid pool is provided with a sewage draining outlet; the fluid discharged from the driven cavity is output to a liquid pool of the body so as to wash the inner wall of the liquid pool, and/or the fluid discharged from the driven cavity is output to a sewage draining outlet so as to drain sewage from the sewage draining outlet; and a process for the preparation of a coating,

the valve body mechanism according to any one of claims 1 to 9, wherein a rear section of the first main flow passage communicates with the drive chamber; the rear section of the second main flow channel is communicated with the driven cavity.

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