CN215211346U - Drainage device and bathroom equipment - Google Patents

Abstract

The utility model relates to a drainage device and sanitary bath equipment, drainage device includes: the flushing device comprises a flushing mechanism, a main side triggering mechanism, a main side control valve, a secondary side triggering mechanism and a secondary side control valve. 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 drive chamber expands, the drive chamber makes the driven chamber space shrink through the transmission, and the space variation of driven chamber is greater than the space variation of drive chamber. The main side trigger mechanism is used for controlling the flow direction of the first pilot water flow. The main side control valve is used for controlling the on-off of a flow passage between the driving cavity and the fluid supply source under the feedback of the first pilot water flow so as to adjust the expansion of the driving cavity. And the secondary side trigger mechanism is used for controlling the flow direction of the second pilot water flow. The secondary side control valve is used for controlling the on-off of a flow passage between the driven cavity and the fluid supply source under the feedback of the second pilot water flow so as to supplement fluid to the driven cavity, and therefore the driven cavity is circulated between the water drainage and the water supplement.

Description

Drainage device and bathroom equipment

Technical Field

The utility model relates to a sanitary bath equipment technical field especially relates to a drainage device and sanitary bath equipment.

Background

The intelligent closestool is used as bathroom equipment, and the development trend is that the thinner the cover plate is, the more the cover plate is flat, so that the attractiveness is improved, and the indoor space is saved. The ceramic water tank of traditional closestool need satisfy the altitude requirement, just has sufficient potential energy and water yield to let the closestool wash totally, but the height of ceramic water tank can lead to the whole great indoor space that occupies of intelligent closestool, makes this kind of mode to be eliminated gradually.

The ceramic-free water tank toilet structure on the market is usually flushed by directly utilizing the water pressure of tap water, and the requirement on the water pressure is high. However, the old community has unstable water pressure, and when the water pressure is insufficient, the water source output flow rate is slow, so that the washing and the rinsing cannot be guaranteed.

In addition, the water quantity of the closestool without the ceramic water tank is ensured by arranging a booster pump, but the mode causes the closestool to have a complex structure, and is expensive and easy to damage.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a drainage device and a sanitary equipment, which solve the problem that the structure of the sanitary equipment is complicated due to the fact that the water pressure of the sanitary equipment is limited by a water source and the flow rate cannot be guaranteed.

A drain, 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 main side trigger mechanism is used for controlling the flow direction of the first pilot water flow;

the main side control valve is connected with the flushing mechanism and used for controlling the on-off of a flow passage between the driving cavity and a fluid supply source under the feedback of the first pilot water flow so as to adjust the expansion of the driving cavity;

the secondary side trigger mechanism is used for controlling the flow direction of the second pilot water flow;

and the secondary side control valve is connected with the flushing mechanism and used for controlling the on-off of a flow passage between the driven cavity and a fluid supply source under the feedback of the second pilot water flow so as to supplement fluid to the driven cavity.

According to the drainage device, the fluid is injected into the driven cavity in advance, so that the inner space of the driven cavity is fully expanded, and meanwhile, the driving cavity is emptied in advance, so that the driving cavity is in a contraction state. When a fluid supply source generating driving external force injects fluid into the driving cavity in a contraction state, the driving cavity generates space expansion due to filling of the fluid; the driving cavity transmits driving external force to the driven cavity when expanding, so that the driven cavity is compressed, and fluid stored in the driven cavity is discharged to the body of the bathroom equipment. Because when the drive chamber expands, the space variation of driven chamber is greater than the space variation of drive chamber, therefore by the fluid volume of discharging in the driven chamber be greater than the fluid volume that gets into the drive chamber to can promote the water volume of discharging in the short time, improve and wash or blowdown effect. The main side trigger mechanism and the main side control valve are matched to control water injection of the driving cavity, and the secondary side trigger mechanism and the secondary side control valve are matched to control water supplement of the driven cavity, so that the driven cavity circulates between drainage and water supplement, water can be automatically supplemented after drainage is finished, and preparation is made for next drainage.

In one embodiment, the master side control valve has a first pressurized cylinder; when the first pilot water flow is injected into the first pressurizing cylinder, the main-side control valve is switched to a conducting state under the action of the first pilot water flow; the primary side control valve is switched to an off state when the first pilot water flow flows out from the first pressurizing cylinder.

In one embodiment, the primary side trigger mechanism causes the first pilot water to be injected toward the first pressurizing cylinder when the primary side trigger mechanism is subjected to an activation operation.

In one embodiment, the first pilot water flow has a fluid pressure from the fluid supply source to act on the primary side control valve when the first pilot water flow is injected into the first pressurizing cylinder.

In one embodiment, the master-side trigger mechanism is further coupled to the flush mechanism, the master-side trigger mechanism causing the first pilot water flow to flow from the first pressurized cylinder when the slave chamber is contracted to a predetermined extent.

In one embodiment, the secondary side control valve has a second pressurized cylinder; when the second pilot water flow is injected into the second pressurizing cylinder, the secondary side control valve is switched to a conducting state under the action force of the second pilot water flow; and when the second pilot water flow flows out of the second pressurizing cylinder, the secondary side control valve is switched to a closed state.

In one embodiment, the secondary side trigger mechanism is further connected to the flushing mechanism, and when the drive chamber expands to a predetermined extent, the secondary side trigger mechanism causes the second pilot water to be injected into the second pressurizing cylinder.

In one embodiment, the secondary side trigger mechanism is further connected to the flushing mechanism, and when the driven cavity expands to a predetermined extent, the secondary side trigger mechanism causes the second pilot water flow to flow out of the second pressurizing cylinder.

In one embodiment, the flushing mechanism is further provided with a water outlet which is communicated to the driven cavity.

A sanitary fixture, comprising: the body and 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 fixture according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the drain of FIG. 1;

FIG. 3 is a diagram of the connection between the master side trigger mechanism and the master side control valve of FIG. 2;

fig. 4 is a schematic view of the engagement between the main side trigger mechanism and the opening and closing assembly in fig. 2;

FIG. 5 is a schematic structural view of the secondary side triggering mechanism in FIG. 2;

FIG. 6 is a schematic structural view of the flushing mechanism of FIG. 2;

FIG. 7 is an enlarged schematic view of the flush mechanism of FIG. 6 at circle A;

FIG. 8 is a schematic view of the engagement between the buckle and the main side projection of the flush mechanism of FIG. 6;

fig. 9 is a schematic structural view of the opening and closing assembly of fig. 6.

Reference numerals:

100. sanitary equipment; 20. a body; 21. a liquid pool; 22. a sewage draining outlet; 23. washing and brushing the waterway; 231. a liquid outlet hole; 24. a spray waterway; 25. a siphon tube; 30. a drainage device; 40. a flushing mechanism; 41. a drive assembly; 411. a primary side housing; 413. a main side port; 412. a drive chamber; 42. a driven assembly; 421. a secondary side housing; 423. a secondary shell portion; 424. an extension portion; 422. a driven chamber; 425. a water outlet; 43. a piston assembly; 431. resetting the flow channel; 433. a driving plate; 434. a transition rod; 435. a driven plate; 44. an adjustment assembly; 441. a closure member; 441a, a cut-off side inclined plane; 441b, a shut-off elastic member; 441c, a cutoff support block; 442. buckling the plate; 442a, a fastening inclined surface; 442b, a snap-fit elastic member; 443. a top rod; 446. a stopper; 444. a secondary side bump; 445. a main side bump; 447. tripping the inclined plane; 45. an opening and closing assembly; 451. an opening and closing valve body; 451a, an unsealing cavity; 451b, plugging the cavity; 451c, a first liquid port; 451d, a second liquid port; 451e, a third liquid port; 451f, fourth port; 451g, a limiting groove; 451h, a first drain port; 451i, a second drain port; 452. opening and closing the valve core; 453. a cover plate; 454. a push rod; 455. a first pressure relief valve; 456. a second pressure relief valve; 50. a primary side trigger mechanism; 51. a first substrate; 511. a first operation panel; 512. a first orientation member; 513. a first position detecting member; 52. a first conduit; 521. a second conduit; 522. a first pipe sleeve; 53. a third conduit; 531. a fourth conduit; 532. a second pipe sleeve; 60. a primary side control valve; 61. a first main channel; 62. a first pressurizing cylinder; 63. a first pilot port; 64. a first movable member; 70. a secondary side trigger mechanism; 71. a second substrate; 711. a second operation panel; 712. a second orienting member; 713. a second position detecting member; 72. a fifth conduit; 721. a sixth conduit; 722. a third pipe sleeve; 73. a seventh conduit; 731. an eighth conduit; 732. a fourth pipe sleeve; 80. a secondary side control valve; 81. a second main channel.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, 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 solution provided by the embodiments of the present invention is described below with reference to the accompanying drawings.

The utility model provides a sanitary ware equipment 100.

Referring to fig. 1, a sanitary equipment 100 includes a drainage device 30 and a main body 20 connected to the drainage device 30, the main body 20 is provided with a liquid pool 21, and a drain outlet 22 is provided at the bottom of the liquid pool 21. 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. The body 20 may have a washing waterway 23 to guide the fluid in the drain device 30 to the upper side of the liquid bath 21 so that the fluid can uniformly wash the inner wall of the liquid bath 21 from the top down. The body 20 can also be provided with a spraying waterway 24 and a siphon 25 communicated with the sewage draining outlet 22, wherein the spraying waterway 24 guides the fluid in the drainage device 30 to the liquid pool 21 and discharges the dirt in the liquid pool 21 through the sewage draining outlet 22 and the siphon 25.

More specifically, the washing water path 23 discharges the fluid to the inner wall of the upper side of the liquid pool 21 through the liquid outlet hole 231 to wash the inner wall of the liquid pool 21. The body 20 is provided with a receiving chamber for receiving the drainage device 30.

The utility model provides a drainage device 30.

As shown in fig. 2, the drain device 30 includes a flush mechanism 40, a primary-side control valve 60 connected to the flush mechanism 40, a primary-side trigger mechanism 50 connected to the primary-side control valve 60, a secondary-side control valve 80 connected to the flush mechanism 40, and a secondary-side trigger mechanism 70 connected to the secondary-side control valve 80.

The flushing mechanism 40 has a drive chamber 412 with a variable spatial size and a follower chamber 422 with a variable spatial size. When the space of the driving cavity 412 is expanded, the driving cavity 412 enables the driven cavity 422 to be contracted through transmission, and the space variation of the driven cavity 422 is larger than that of the driving cavity 412. The primary side trigger mechanism 50 is used to control the flow direction of the first pilot water flow. The primary side control valve 60 is used to control the flow path between the drive chamber 412 and the fluid supply source under feedback of the first pilot water flow to control the expansion of the drive chamber 412. The secondary side trigger mechanism 70 is used to control the flow direction of the second pilot water flow. The secondary control valve 80 is used to control the opening and closing of a flow passage between the driven chamber 422 and the fluid supply source under the feedback of the second pilot water flow to supplement the fluid to the driven chamber 422. Specifically, the flushing mechanism 40 is further provided with a follower chamber 422 connected to the drain port 425, and the follower chamber 422 discharges the fluid to the body 20 through the drain port 425.

By pre-filling the slave chamber 422 with fluid, the interior space of the slave chamber 422 is sufficiently expanded while the drive chamber 412 is pre-evacuated to place the drive chamber 412 in a contracted state. When the fluid supply source generating the driving external force injects the fluid into the driving chamber 412 in the contracted state, the driving chamber 412 is spatially expanded due to the filling of the fluid; when expanded, driving chamber 412 transmits driving external force to driven chamber 422, compressing driven chamber 422, and discharging the fluid stored in driven chamber 422 to body 20 of sanitary ware 100. Because the amount of space change of the driven chamber 422 is greater than the amount of space change of the driving chamber 412 when the driving chamber 412 is expanded, the amount of fluid discharged from the driven chamber 422 is greater than the amount of fluid entering the driving chamber 412, thereby increasing the amount of water discharged in a short time and improving the flushing or sewage discharging effect. The primary side trigger mechanism 50 cooperates with the primary side control valve 60 to control the filling of the drive chamber 412 and the secondary side trigger mechanism 70 cooperates with the secondary side control valve 80 to control the refilling of the slave chamber 422, thereby circulating the slave chamber 422 between the drain and refill, and automatically refilling after draining to prepare for the next drain.

Referring to fig. 2 and 6, in particular, when the driving chamber 412 is expanded by the driving external force, the driving external force is transmitted to compress the driven chamber 422 to be smaller, so as to discharge the fluid stored in the driven chamber 422. When the driving chamber 412 is expanded by the driving external force, the expansion space variation amount is smaller than the compression space variation amount of the driven chamber 422.

Further, when the main-side trigger mechanism 50 is subjected to the start-up operation, the main-side trigger mechanism 50 causes the first pilot water flow to circulate in the forward direction, the first pilot water flow generates a fluid pressure on the main-side control valve 60 when circulating in the forward direction, the inside of the main-side control valve 60 is changed from the off state to the on state, and the fluid supply source injects the fluid into the drive chamber 412 through the main-side control valve 60, so that the drive chamber 412 is expanded and the driven chamber 422 is driven to discharge the fluid. The secondary side trigger mechanism 70 causes the second pilot water flow to flow in the forward direction when the driven chamber 422 is drained and contracted to a predetermined extent, and the second pilot water flow generates a driving force to the secondary side control valve 80 when flowing in the forward direction, so that the inside of the secondary side control valve 80 is changed from the off state to the on state, and the fluid supply source supplements the fluid to the driven chamber 422 through the secondary side control valve 80.

During operation of the drain 30, the driven chamber 422 may be pre-filled with fluid to fully expand the interior space of the driven chamber 422, while the driving chamber 412 is pre-drained to allow the driving chamber 412 to be in a contracted state. When the fluid supply source generating the driving external force injects the fluid into the driving chamber 412 in the contracted state by the driving of the main-side control valve 60 by the first pilot water flow, the driving chamber 412 is spatially expanded by the filling of the fluid. When expanded, driving chamber 412 transmits driving external force to driven chamber 422, compressing driven chamber 422, and discharging the fluid stored in driven chamber 422 to body 20 of sanitary ware 100. Because the amount of space change of the driven chamber 422 is greater than the amount of space change of the driving chamber 412 when the driving chamber 412 is expanded, the amount of fluid discharged from the driven chamber 422 is greater than the amount of fluid entering the driving chamber 412, thereby increasing the amount of water discharged in a short time and improving the flushing or sewage discharging effect. After the drainage of the driven chamber 422 is completed, the secondary side trigger mechanism 70 controls the flow direction of the second pilot water flow according to the compression of the driven chamber 422 or the expansion of the driving chamber 412, and when the second pilot water flow is injected into the secondary side control valve 80, the fluid supply source generating the driving external force replenishes the fluid to the driven chamber 422 in the contracted state, and generates a compression action on the driving chamber 412 when the driven chamber 422 expands, so that the driving chamber 412 is returned to the contracted state, thereby realizing the circulation operation of the drainage device 30.

In some embodiments, the fluid supply is the output of a municipal water line, and the fluid injected into the drive chamber 412 or the driven chamber 422 is tap water. In other embodiments, the fluid supply source may also be the output of municipal tap water from a pressure pump, or the pump output of the external pump of the sanitary fixture 100 to the external stored water.

In some embodiments, as shown in fig. 2, the first pilot water flow or the second pilot water flow is from a fluid supply source to generate a driving force for switching the state of the primary side control valve 60 or the secondary side control valve 80 by using the fluid pressure of the fluid supply source, avoiding the need to introduce excessive power components to reduce the cost of the drain 30.

In some embodiments, the primary side control valve 60 has a first pressurized cylinder 62. When the first pilot water flow is injected into the first pressurizing cylinder 62, the main-side control valve 60 is switched to the on state by the force of the first pilot water flow. When the first pilot water flows out from the first pressurizing cylinder 62, the main-side control valve 60 is switched to the off state.

Specifically, as shown in fig. 2, the output port of the main-side control valve 60 is used to output fluid to the drive chamber 412, the main-side control valve 60 is provided with a first main passage 61, and the main-side control valve 60 is further provided with a first pilot port 63 that communicates with a front stage of the first main passage 61. The main-side trigger mechanism 50 is connected between the first pilot port 63 and the first pressurizing cylinder 62. In a state where the first pilot water flow is injected into the first pressurizing cylinder 62, the first pilot port 63 and the first pressurizing cylinder 62 serve as a start point and an end point of the first pilot water flow, respectively. In a state where the first pilot water flow flows out from the first pressurizing cylinder 62, the first pressurizing cylinder 62 serves as a starting point of the first pilot water flow.

More specifically, before the first pilot port 63 communicates with the first pressurizing cylinder 62, the front section and the rear section of the first main passage 61 are blocked by the restriction of the first movable element 64, and when the first pilot port 63 communicates with the first pressurizing cylinder 62, the fluid flowing out of the first pilot port 63 enters the first pressurizing cylinder 62 and pushes the first movable element 64 by using the fluid pressure, so that the front section and the rear section of the first main passage 61 are communicated, and the fluid provided by the fluid supply source flows along the first main passage 61 and is delivered to the driving chamber 412. More specifically, a front section of the first main passage 61 is communicated to the fluid supply source, and a rear section of the first main passage 61 is communicated to the output port of the main-side control valve 60.

In some embodiments, when the master-side trigger mechanism 50 is subjected to the priming operation, the master-side trigger mechanism 50 injects the first pilot water to the first pressurizing cylinder 62.

Specifically, as shown in fig. 3 and 4, the main-side trigger mechanism 50 includes a first conduit 52, a second conduit 521, a first sleeve 522, a first base plate 51, and a first operation plate 511 rotatably connected to the first base plate 51. A port of the first conduit 52 is communicated to the first pilot port 63, and a port of the second conduit 521 is communicated to the first pressurizing cylinder 62. The other port of the first conduit 52 and the other port of the second conduit 521 are arranged side by side and are commonly accommodated in the first sleeve 522.

Before the start operation, the first pressurizing cylinder 62 is in an idle state, and the first operation plate 511 is at a predetermined angle with respect to the first base plate 51 and can abut against the first socket 522, so that the other port of the first conduit 52 and the other port of the second conduit 521 abut against the inner wall of the first socket 522, respectively. Therefore, the inner wall of the first sleeve 522 seals the other port of the first conduit 52 and the second conduit 521, and the first pilot port 63 is blocked from the first pressurizing cylinder 62.

At the time of the start operation, the first operation plate 511 is manually or electrically turned, and it is rotated to another predetermined angle with respect to the first base plate 51. At this time, the inner wall of the first pipe sleeve 522 is simultaneously separated from the other port of the first pipe 52 and the other port of the second pipe 521, the other port of the first pipe 52 and the other port of the second pipe 521 are in a communication relationship through the inner cavity of the first pipe sleeve 522, and the first pilot water flowing out of the first pilot port 63 is injected into the first pressurizing cylinder 62 through the first pipe 52, the inner cavity of the first pipe sleeve 522, and the second pipe 521 in this order. More specifically, since the first pilot port 63 communicates with the front section of the first main passage 61, and the front section of the first main passage 61 communicates with the fluid supply source, the fluid pressure of the first pilot water flow is derived from the fluid supply source, and thus the main-side control valve 60 can be driven to switch from the off state to the on state by the fluid pressure of the fluid supply source itself.

In some embodiments, the master-side trigger mechanism 50 is further connected to the flush mechanism 40, and the master-side trigger mechanism 50 causes the first pilot water to flow out of the first pressurizing cylinder 62 when the slave cavity 422 is contracted to a predetermined extent to switch the master-side control valve 60 to the off state.

Specifically, as shown in fig. 2 and 6, the master-side trigger mechanism 50 further includes a first position detecting member 513 connected to the flushing mechanism 40. More specifically, during the contraction of the driven chamber 422, there are two local inner walls moving close to each other in the driven chamber 422, and when the driven chamber 422 contracts to a predetermined extent, the fluid in the driven chamber 422 has been sufficiently discharged, while one side of the two local inner walls moving close to each other abuts against the first position detecting member 513, and the first operation plate 511 is returned to a predetermined angle with respect to the first base plate 51 by the transmission of the first position detecting member 513. The master-side trigger mechanism 50 includes a third conduit 53, a fourth conduit 531 communicating with the input port of the first pressurizing cylinder 62, and a second sleeve 532. A port of the third conduit 53 is used for discharge, and a port of the fourth conduit 531 is communicated to the first pressurizing cylinder 62. The other port of the third conduit 53 and the other port of the fourth conduit 531 are arranged side by side and commonly accommodated in the second socket 532. When the first operation plate 511 is at a predetermined angle, the first operation plate 511 abuts against the first sleeve 522 and releases the second sleeve 532, and the inner wall of the second sleeve 532 is simultaneously separated from the other port of the third duct 53 and the other port of the fourth duct 531, so that the other port of the third duct 53 and the other port of the fourth duct 531 are in communication with each other through the inner cavity of the second sleeve 532. At this time, the first movable element 64 discharges the water flow in the first pressurizing cylinder 62 by the elastic restoring force, a first pilot water flow flowing out from the first pressurizing cylinder 62 is formed, and the first movable element 64 restores the block of the first main passage 61.

Further, the main-side trigger mechanism 50 further includes a first orientation member 512, the first orientation member 512 is connected between the first base plate 51 and the first operation plate 511, and the first orientation member 512 is used for keeping the first operation plate 511 at an angle after the shift operation with respect to the first base plate 51. In the present embodiment, the first direction-directing member 512 is a compression spring, and one end of the first direction-directing member 512 abuts against the first base plate 51, and the other end abuts against the vicinity of the rotational axis of the first operation plate 511, so that the first direction-directing member 512 is in a compressed state, and when the first operation plate 511 is deflected, the deformation direction of the first direction-directing member 512 is changed, and the first operation plate 511 is held at the angle after the rotation.

In some embodiments, the secondary side control valve 80 has a second pressurized cylinder. When the second pilot water flow is injected into the second pressurizing cylinder, the secondary-side control valve 80 is switched to the on state by the force of the second pilot water flow. When the second pilot water flows out from the second pressurizing cylinder, the secondary-side control valve 80 is switched to the off state.

Specifically, as shown in fig. 2, the output port of the secondary side control valve 80 is used for outputting fluid to the driven chamber 422, the secondary side control valve 80 is provided with a second main passage 81, and the secondary side control valve 80 is further provided with a second pilot port communicating with a front section of the second main passage 81. The secondary side trigger mechanism 70 is connected between the second pilot port and the second pressure cylinder. The second pilot port and the second pressurizing cylinder serve as a start point and an end point of the second pilot water flow, respectively, in a state where the second pilot water flow is injected into the second pressurizing cylinder. The second pressurizing cylinder serves as a starting point of the second pilot water flow in a state where the second pilot water flow flows out from the second pressurizing cylinder.

More specifically, before the second pilot port communicates with the second pressurizing cylinder, the front section and the rear section of the second main passage 81 are restricted by the second movable member and are blocked, and when the second pilot port communicates with the second pressurizing cylinder, the fluid flowing out of the second pilot port enters the second pressurizing cylinder and pushes the second movable member by using the fluid pressure, so that the front section and the rear section of the second main passage 81 are communicated, and the fluid provided by the fluid supply source flows along the second main passage 81 and is delivered to the driven chamber 422. More specifically, the front section of the second main passage 81 is communicated to the fluid supply source, and the rear section of the second main passage 81 is communicated to the output port of the secondary-side control valve 80.

In some embodiments, secondary side trigger mechanism 70 is further coupled to flush mechanism 40, and secondary side trigger mechanism 70 injects a second pilot water flow into the second pressurized cylinder when drive chamber 412 expands to a predetermined extent.

Specifically, as shown in fig. 5, the secondary triggering mechanism 70 includes a fifth conduit 72, a sixth conduit 721, a third pipe sleeve 722, a second base plate 71, and a second operation plate 711 rotatably connected to the second base plate 71. A port of the fifth conduit 72 is connected to the second pilot port, and a port of the sixth conduit 721 is connected to the second pressurizing cylinder. The other port of the fifth conduit 72 and the other port of the sixth conduit 721 are disposed side by side and commonly received in the third sheath 722.

Before the expansion of the drive chamber 412 is completed, the second pressurizing cylinder is in an empty state, and the second operation plate 711 is positioned at a predetermined angle with respect to the second base plate 71, and can abut against the third sleeve 722, so that the other port of the fifth conduit 72 and the other port of the sixth conduit 721 abut against the inner wall of the third sleeve 722, respectively. Therefore, the inner wall of the third pipe sleeve 722 seals the other port of the fifth pipe 72 and the sixth pipe 721, and the second pilot port is blocked from the second cylinder.

The secondary triggering mechanism 70 further includes a second position detecting member 713 connected to the flushing mechanism 40, and when the driving chamber 412 is expanded to a predetermined extent, a portion of the wall forming the driving chamber 412 is directly or indirectly transmitted through the second position detecting member 713, so that the second operation plate 711 is deflected. When the driving chamber 412 expands to a predetermined degree, the second operation plate 711 is rotated by the second position detecting member 713, and rotates to another predetermined angle with respect to the second base plate 71. At this time, the inner wall of the third sleeve 722 is simultaneously separated from the other port of the fifth conduit 72 and the other port of the sixth conduit 721, the other port of the fifth conduit 72 and the other port of the sixth conduit 721 are in a communication relationship through the inner cavity of the third sleeve 722, and the second pilot water flowing out of the second pilot port is injected into the second pressurizing cylinder through the fifth conduit 72, the inner cavity of the third sleeve 722, and the sixth conduit 721 in this order. More specifically, since the second pilot port communicates with the front section of the second main passage 81, and the front section of the second main passage 81 communicates with the fluid supply source, the fluid pressure of the second pilot water flow is derived from the fluid supply source, and thus the secondary control valve 80 can be driven to switch from the off state to the on state by the fluid pressure of the fluid supply source itself.

In some embodiments, the secondary side trigger mechanism 70 causes the second pilot water to flow out of the second pressurized cylinder when the secondary side trigger mechanism 70 expands the driven chamber 422 to a predetermined extent.

During the expansion of the driven chamber 422, the driven chamber 422 has two local inner walls moving away from each other, and when the driven chamber 422 expands to a predetermined extent, the fluid in the driven chamber 422 is sufficiently replenished, and at the same time, one side of the two local inner walls moving away from each other abuts against the second position detecting member 713, and the second operation plate 711 is restored to a predetermined angle with respect to the second base plate 71 by the transmission of the second position detecting member 713. The secondary triggering mechanism 70 includes a seventh conduit 73, an eighth conduit 731 communicating with the input port of the second pressurizing cylinder, and a fourth sleeve 732. A port of the seventh conduit 73 is used for discharge, and a port of the eighth conduit 731 is communicated to the second pressurizing cylinder. The other port of the seventh conduit 73 and the other port of the eighth conduit 731 are disposed side by side and commonly received in the fourth sleeve 732. When the second operation plate 711 is at a predetermined angle, the second operation plate 711 abuts against the third sleeve 722 and releases the fourth sleeve 732, and the inner wall of the fourth sleeve 732 simultaneously separates from the other port of the seventh guide duct 73 and the other port of the eighth guide duct 731, so that the other port of the seventh guide duct 73 and the other port of the eighth guide duct 731 are in communication with each other through the lumen of the fourth sleeve 732. At this time, the second movable element discharges the water flow in the second pressurizing cylinder under the elastic restoring force, a second pilot water flow flowing out from the second pressurizing cylinder is formed, and the first movable element 64 restores the block of the second main passage 81.

Further, the secondary side triggering mechanism 70 further includes a second orientation member 712, the second orientation member 712 is connected between the second base plate 71 and the second operation plate 711, and the second orientation member 712 is used for keeping the second operation plate 711 at the switched angle with respect to the second base plate 71. In the present embodiment, the second orientation member 712 is a compression spring, and one end of the second orientation member 712 abuts against the second base plate 71 and the other end abuts against the vicinity of the rotation axis of the second operation plate 711, so that the second orientation member 712 is in a compressed state, and when the second operation plate 711 is deflected, the deformation direction of the second orientation member 712 changes, and the second operation plate 711 is held at the post-rotation angle.

In some embodiments, as shown in fig. 6, flush mechanism 40 includes a drive assembly 41, a follower assembly 42, and a piston assembly 43. Specifically, the drive assembly 41 is configured to form the drive chamber 412 and the driven assembly 42 is configured to form the driven chamber 422. The drain 425 is provided in the driven member 42. The piston assembly 43 is disposed between the driving assembly 41 and the driven assembly 42, and when the driving chamber 412 is expanded by the driving external force, the driving assembly 41 transmits the driving external force to the driven chamber 422 assembly through the piston assembly 43, so as to cause the space of the driven chamber 422 to contract.

In some embodiments, as shown in fig. 6, the drive assembly 41 includes a primary side housing 411 to which the piston assembly 43 is attached, and the primary side housing 411 cooperates with the piston assembly 43 to form the drive chamber 412. The primary side housing 411 is provided with a primary side port 413 through which fluid enters and exits the drive chamber 412.

In some embodiments, the follower assembly 42 includes a secondary housing 421 to which the piston assembly 43 is coupled, and the secondary housing 421 cooperates with the piston assembly 43 to form the follower chamber 422. In the embodiment shown in fig. 6, the secondary side case 421 includes a secondary case part 423 and an extension part 424 connecting the secondary case part 423. The driven chamber 422 is formed in the secondary portion 423 and the extension portion 424, and the piston assembly 43 is movably received in the secondary portion 423. Specifically, the secondary housing portion 423 cooperates with the piston assembly 43 to form a spatially variable portion of the driven chamber 422.

Further, a partial sidewall of the secondary shell portion 423 and a partial sidewall of the extension portion 424 are overlapped with a predetermined edge line. The predetermined margin line passes through the drain 425.

In some embodiments, the follower assembly 42 is formed with a flange around the drain opening 425 for abutment with the cover 453. In the embodiment shown in fig. 6, the flange is provided on the extension 424.

In the embodiment shown in fig. 6, the piston assembly 43 includes a driving plate 433, a transition lever 434, and a driven plate 435 connected in this order. The active plate 433 cooperates with the primary side housing 411 to form the drive chamber 412. Driven plate 435 cooperates with secondary side housing 421 to form driven cavity 422.

In some embodiments, piston assembly 43 defines a return flow passage 431. Specifically, the reset flow passage 431 is sequentially formed in the driving plate 433, the transition rod 434, and the driven plate 435.

Flush mechanism 40 further includes an adjustment assembly 44, and adjustment assembly 44 is coupled to piston assembly 43.

Specifically, the adjustment assembly 44 is used to control the opening and closing of the reset flow passage 431. When fluid from the drive chamber 412 needs to flow to the slave chamber 422, the slave chamber 422 can communicate with the drive chamber 412 through the reset flow passage 431.

In some embodiments, as shown in FIG. 7, the adjustment assembly 44 includes a closure member 441 coupled to the piston assembly 43 and a pinch plate 442 coupled to the piston assembly 43. Specifically, the pinch plate 442 serves to lock the closure member 441 in a state in which the closure member 441 blocks the port of the reset flow passage 431 when the drive chamber 412 is expanded. Therefore, when fluid is injected into the driving chamber 412, the increase in the volume of the injected fluid can be converted into the spatial expansion of the driving chamber 412, and the fluid in the driving chamber 412 is prevented from overflowing from the reset channel 431 to affect the expansion efficiency of the driving chamber 412.

In some embodiments, the end of the closure member 441, which is close to the return flow passage 431 and communicates with the driving chamber 412, and the end of the closure member 441, which faces away from the piston assembly 43, is provided with a cut-off side inclined surface 441 a. The cut-off side inclined surface 441a is inclined inwardly in the flow-through direction from the driven chamber 422 to the driving chamber 412. In the radial direction of the return flow passage 431, the gusset 442 exerts an abutment force on the shutoff-side inclined surface 441 a. In the embodiment shown in fig. 6 and 7, one end of the shut-off member 441 faces the depth of the main side housing 411, and when the pinch plate 442 applies pressure to the shut-off side inclined surface 441a of the shut-off member 441, the pressure can resolve a pressure parallel to the radial direction of the shut-off member 441 and a pressure perpendicular to the radial direction of the shut-off member 441 and directed toward the piston assembly 43, and when the latter pressure acts on the shut-off side inclined surface 441a, the shut-off member 441 can be moved close to the piston assembly 43 to be engaged with the portion of the piston assembly 43 around the port of the reset flow passage 431, so as to block the port of the reset flow passage 431. More specifically, as shown in fig. 7, the buckle 442 is provided with engaging inclined surfaces 442a, and the engaging inclined surfaces 442a are arranged in parallel with the closure side inclined surfaces 441a, so as to reduce the pressure applied to the closure member 441 or the buckle 442.

In some embodiments, the orifice is movably disposed with respect to piston assembly 43 parallel to the communication direction of return flow passage 431. The buckle 442 is slidably connected to the piston assembly 43, and the moving direction of the buckle 442 is perpendicular to the communication direction of the return flow passage 431. Specifically, when the blocking member 441 is subjected to an acting force in the direction of the driving cavity 412, the blocking member 441 acts on the buckle 442 in the opposite direction, so that the buckle 442 moves away from the throttling member in the self-sliding direction, and after the edge of the blocking side inclined surface 441a is separated from the abutting joint of the buckle 442, the locking of the buckle 442 on the blocking member 441 can be conveniently released, so that the blocking member 441 is kept away from the port of the reset flow passage 431, and the communication between the driving cavity 412 and the driven cavity 422 is realized. In the embodiment shown in fig. 7, the other end of the shut-off member 441 is narrowed with respect to the wide side of the shut-off side inclined surface 441a, and the pinch plate 442 makes a gap between the shut-off member 441 and the port of the piston assembly 43 or the return flow passage 431 by abutting against the back surface of the shut-off side inclined surface 441 a. More specifically, as shown in fig. 7, the cut-off member 441 and the buckle plate 442 are accommodated in the driving plate 433, and the buckle plate 442 is moved closer to or away from the cut-off member 441 in a straight line by a limiting manner in the driving plate 433. Further, a fastening elastic member 442b is disposed between the buckle 442 and the inner wall of the driving plate 433, and the fastening elastic member 442b is used to push the buckle 442 toward the direction close to the cut-off member 441 so as to generate a pressure on the cut-off side inclined surface 441 a. In the present embodiment, the engaging elastic member 442b is a compression spring.

In some embodiments, the closure member 441 is on the side of the piston assembly 43 facing the drive chamber 412. The adjustment assembly 44 further includes a stem post 443, one end of the stem post 443 is connected to a side of the closure member 441 adjacent the reset flow passage 431, the stem post 443 extends through the reset flow passage 431, and the other end reaches the driven chamber 422. Specifically, after the driven cavity 422 is contracted to a predetermined extent, the other end of the ejector pin 443 abuts against the inner wall of the driven cavity 422, the ejector pin 443 pushes the cut-off member 441, so that the cut-off member 441 moves in a direction deep into the main-side housing 411, the cut-off-side inclined surface 441a pushes the buckle 442 to disengage from the abutment of the buckle 442, and the cut-off member 441 is isolated from the port of the reset flow passage 431, so that the driving cavity 412 is communicated with the driven cavity 422.

In the embodiment shown in fig. 6, the adjustment assembly 44 further includes a stopper 446 coupled to the other end of the ejector 443 and a secondary side projection 444 coupled to the inside of the secondary side housing 421. The stopper 446 is disposed opposite to the secondary side projection 444 in the direction of movement of the other end of the ejector 443 in the driven chamber 422. Specifically, when the driven chamber 422 is compressed to a predetermined degree, the secondary projection 444 abuts against the stopper 446, and since the area of the stopper 446 is larger than that of the other end of the ejector 443, the other end of the ejector 443 can be surely pushed. By setting the length of the secondary side tab 444, the degree of compression of the driven cavity 422 can be controlled.

In some embodiments, the adjustment assembly 44 further includes a primary side tab 445 connected to the primary side housing 411, a small end of the primary side tab 445 facing the piston assembly 43. When the primary side projection 445 abuts against the catching plate 442, the catching plate 442 moves away from the closure member 441 in the radial direction of the reset flow passage 431 to restore the blockage of the port of the reset flow passage 431 by the closure member 441. In the embodiment shown in fig. 8, the main side projections 445 are provided with the trip inclined surfaces 447 around the small ends thereof. The trip inclined surfaces 447 are inclined inwardly in a direction approaching the piston assembly 43. The main side projection 445 abuts against the edge of the buckle plate 442 with the trip inclined surface 447, the buckle plate 442 moves away from the cut-off member 441 in the direction perpendicular to the reset flow passage 431, so that a gap is formed between the buckle plate 442 and the edge of the cut-off side inclined surface 441a, and the cut-off member 441 can thus move through the movable plane of the buckle plate 442 and toward the port close to the reset flow passage 431 to fit the avoidance of the driving plate 433 around the reset flow passage 431, so that the isolation between the driving chamber 412 and the driven chamber 422 is restored again.

In the embodiment shown in fig. 7, the adjusting assembly 44 further includes a closure elastic member 441b connected to the closure member 441, and the elastic force of the closure elastic member 441b moves the closure member 441 close to the port of the reset flow passage 431. So that the closure member 441 can move close to the port of the reset flow passage 431 by the elastic force of the closure elastic member 441b while a gap is formed between the catching plate 442 and the edge of the closure-side inclined surface 441 a. Specifically, one end of the driving plate 433 extending into the main side housing 411 is connected to the intercepting support blocks 441c, the intercepting member 441 is disposed between the intercepting support blocks 441c at one end of the resetting channel 431, and both ends of the intercepting elastic member 441b respectively abut against one ends of the intercepting support blocks 441c and the intercepting member 441. More specifically, the shut-off elastic member 441b is a compression spring.

In the embodiment shown in fig. 8, the catching plates 442 are arranged in pairs at the center of the return flow passage 431, and the small ends of the main side projections 445 are inserted into the gaps between the catching plates 442 to move the catching plates 442 away from each other. Since both sides of the trip inclined surface 447 of the main side projection 445 are abutted against two different buckle plates 442 at the same time, the component force of the main side projection 445 in the direction parallel to the moving direction of the buckle plates 442 can be offset, and the main side projection 445 is prevented from being broken or loosened due to the component force.

Referring to FIG. 2, in the initial state, the driven chamber 422 is full of fluid and the driving chamber 412 is completely empty of fluid. At this time, the driving plate 433 is located deep into the main side housing 411, the buckle 442 is separated from the cut-off member 441 by the main side protrusion 445, and the cut-off member 441 blocks one port of the restoring flow passage 431 by the cut-off elastic member 441b, so that the driving chamber 412 is isolated from the driven chamber 422.

When the fluid is injected into the driving chamber 412, the space of the driving chamber 412 expands as the volume of the injected fluid increases, the fluid pushes the driven plate 435 deep into the secondary housing 421 through the driving plate 433 and the transition rod 434, and the space of the driven chamber 422 is reduced, so that the fluid in the driven chamber 422 is discharged. After the catching plate 442 is separated from the main side projection 445, the catching plate 442 moves close to the stopper 441 by the catching elastic member 442b and abuts against the intercepting side inclined surface 441a by the catching inclined surface 442a, stabilizing the blockage of one port of the reset flow passage 431 by the stopper 441.

After the driven cavity 422 is contracted to a preset degree and the fluid stored in the driven cavity 422 is sufficiently discharged, the fluid stops being injected into the driving cavity 412, the stopper 446 connected to the other end of the ejector 443 abuts against the secondary side projection 444, the ejector 443 penetrates through the reset fluid to move and push the cut-off member 441, and the cut-off side inclined surface 441a pushes the two pinch plates 442 to move away from each other. After the interception member 441 passes through the gap between the two pinch plates 442, the two pinch plates 442 are folded again, so that the back surface of the interception side inclined surface 441a is abutted against the pinch plates 442, a gap is formed between the interception member 441 and the other end of the reset flow passage 431, and the other end of the reset flow passage 431 is communicated with the driving cavity 412. Since the driven plate 435 is moved in a direction to retreat from the secondary side housing 421 due to a pressure of the self weight of the fluid of the driven plate 435 on the driven plate 435 or the gravity of the piston assembly 43 itself, the driven plate 435 is moved by pushing the driving plate 433 deep into the primary side housing 411 by the transition lever 434, and the space of the driving chamber 412 is compressed. During compression of drive chamber 412, fluid in drive chamber 412 flows through reset passage 431 in piston assembly 43 to slave chamber 422.

When the fluid in the driving chamber 412 is nearly exhausted, the driving plate 433 is inserted deep into the primary side housing 411, and the trip inclined surface 447 of the primary side projection 445 is inserted into the gap between the two catching plates 442, and the cut-off member 441 blocks one end of the reset flow passage 431 after passing through the active plane of the catching plates 442, so that the fluid in the driving chamber 412 can be prevented from overflowing to the driven chamber 422 through the reset flow passage 431 at the next expansion of the driving chamber 412.

The flushing mechanism 40 further includes an opening and closing member 45.

Specifically, the opening and closing assembly 45 is connected to the driven assembly 42. The opening/closing unit 45 has a closed state in which the drain opening 425 is closed and an open state in which the drain opening 425 is opened. When the drive chamber 412 is expanded, the opening/closing unit 45 is switched from the closed state to the open state.

In some embodiments, the opening/closing assembly 45 includes an opening/closing valve body 451, an opening/closing valve body 452 movably disposed in the opening/closing valve body 451, and a cover 453 connected to the opening/closing valve body 452. The open/close valve body 451 has an unsealing chamber 451a formed at one end of the open/close valve body 452, and the open/close valve body 451 has a plugging chamber 451b formed at the other end of the open/close valve body 452. The closing chamber 451b is expanded to move the opening/closing valve body 452 to move the lid 453 closer to the drain port 425. The unsealing chamber 451a is expanded so that the open/close valve core 452 moves the lid 453 away from the drain port 425.

In the embodiment shown in fig. 9, the unsealing chamber 451a and the plugging chamber 451b are provided at both ends of the open-close valve body 452 in the direction in which the open-close valve body 451 is movable by the open-close valve body 452. When the fluid is injected into the unsealing chamber 451a, the opening/closing valve core 452 moves in the direction of closing the chamber 451b due to the tendency of the unsealing chamber 451a to expand, and at the same time, the opening/closing valve core 452 moves the cover 453 so that the cover 453 is separated from the drain port 425, and thus the fluid in the driven chamber 422 can be discharged to the main body 20 through the drain port 425. When the fluid is injected into the block chamber 451b, the opening/closing valve body 452 moves in the direction of the deblocking chamber 451a in the tendency of the block chamber 451b to expand, and the opening/closing valve body 452 moves the cover 453 so as to move the cover 453 closer to the drain opening 425, so that the communication between the driven chamber 422 and the main body 20 is blocked after the cover 453 is attached to the drain opening 425.

In the embodiment shown in fig. 9, the opening/closing valve body 451 is provided with a first liquid port 451c, a second liquid port 451d, a third liquid port 451e, and a fourth liquid port 451f in this order along the moving direction of the opening/closing valve body 452. The first liquid port 451c is used for communicating with the unsealing chamber 451a, and the second liquid port 451d is communicated with the driving chamber 412. The third liquid port 451e communicates with the driven chamber 422, and the fourth liquid port 451f communicates with the block chamber 451 b. The open/close valve body 452 functions to block the second liquid port 451d or the third liquid port 451 e. Specifically, in the embodiment shown in fig. 9, the first liquid port 451c is communicated to the output port of the primary-side control valve 60, and the fourth liquid port 451f is communicated to the output port of the secondary-side control valve 80.

Specifically, in the closed state, the open/close valve body 452 is located at a position close to the unsealing chamber 451a, and the open/close valve body 452 isolates the unsealing chamber 451a from the second liquid port 451d at this position. When the fluid supplied from the fluid supply source is injected into the unsealing chamber 451a from the first liquid port 451c, the unsealing chamber 451a expands and pushes the open-close valve core 452 to move toward the plugging chamber 451b, and when the end of the open-close valve core 452 facing the unsealing chamber 451a passes through the second liquid port 451d, the open-close valve core 452 releases the block of the second liquid port 451d, the unsealing chamber 451a communicates with the second liquid port 451d, so that the fluid supplied from the fluid supply source can be injected into the driving chamber 412, and the driving chamber 412 expands. The expansion of the drive chamber 412 causes fluid in the driven chamber 422 to be expelled, and the shutter member 452 has previously caused the cover 453 to move away from the drain port 425.

Specifically, in the open state, the open/close valve body 452 is located at a position close to the block chamber 451b, and the open/close valve body 452 isolates the block chamber 451b from the third liquid port 451e at this position. When the fluid supplied from the fluid supply source is injected into the block chamber 451b from the fourth port 451f, the block chamber 451b expands to push the open/close valve body 452 to move toward the unblocking chamber 451a, and when one end of the open/close valve body 452 facing the block chamber 451b passes through the third port 451e, the open/close valve body 452 releases the block of the third port 451e, and the block chamber 451b communicates with the third port 451e, so that the fluid supplied from the fluid supply source can be injected into the driven chamber 422, and the fluid is replenished to the driven chamber 422.

In the embodiment shown in fig. 9, the opening of the second liquid port 451d is directed opposite to the opening of the third liquid port 451 e. Therefore, the distance between the second liquid port 451d and the third liquid port 451e can be prevented from being too close, and sufficient space is reserved for the second liquid port 451d and the third liquid port 451e to be in butt joint with corresponding drainage sleeves. Specifically, the opening of the second liquid port 451d and the opening of the third liquid port 451e face the moving paths facing away from the open/close valve body 452, respectively.

In some embodiments, the inside of the open/close valve body 451 is provided with a limit groove 451g, and the limit groove 451g is used to limit the moving path of the open/close valve core 452, so as to prevent the end of the open/close valve core 452 facing the unsealing chamber 451a or the end of the open/close valve core 452 facing the plugging chamber 451b from completely adhering to the inner wall of the open/close valve body 451, thereby ensuring that the fluid can generate pressure on the end of the open/close valve core 452, and the open/close valve core 452 can move. In the embodiment shown in fig. 9, the open/close valve body 451g is partially accommodated in the stopper groove 451g, and the extension length of the stopper groove 451g is set so that gaps are left between both ends of the open/close valve body 452 and the inner wall of the open/close valve body 451.

In the embodiment shown in fig. 6, the inner diameter of the extension portion 424 is smaller than the inner diameter of the secondary housing portion 423, the drain opening 425 is provided on one side of the extension portion 424 in the width direction thereof, and the open/close valve body 451 is provided on the other side of the extension portion 424 in the width direction. Since the width of the extension part 424 is smaller than the width of the secondary housing 423, the drain opening 425 and the opening/closing valve body 451 are provided on the opposite sides of the extension part 424 in the width direction, so that the relative distance between the lid 453 and the opening/closing valve body 452 can be reduced, which is advantageous in simplifying the transmission structure of the lid 453 and the opening/closing valve body 452.

In the embodiment shown in fig. 6, the opening/closing valve body 451 is provided on the side of the extension portion 424 opposite to the predetermined edge line, and thus the secondary housing portion 423 is provided to overlap the opening/closing valve body 451 in the longitudinal direction of the extension portion 424, so that the occupied space in the width direction of the extension portion 424 can be effectively reduced.

In some embodiments, the opening and closing assembly 45 further includes a push rod 454, and the push rod 454 is connected between the opening and closing valve core 452 and the cover 453 such that the opening and closing valve core 452 can move the cover 453. In the embodiment shown in fig. 6, the push rod 454 is disposed through the extension 424. More specifically, a seal ring may be provided at a position where the open/close valve body 451 abuts against the push rod 454 or at a position where the extension portion 424 abuts against the push rod 454, so as to prevent fluid from being exchanged between the unsealing chamber 451a and the driven chamber 422.

In the embodiment shown in fig. 4 and 6, in order to prevent the accumulation of the fluid in the block chamber 451b from affecting the movement of the open/close valve body 452 when the fluid is injected into the unsealing chamber 451a, the open/close valve body 451 is provided with a first relief port 451h that always communicates with the block chamber 451b, and the open/close unit 45 further includes a first relief valve 455 that communicates with the first relief port 451 h. When the first operation plate 511 is at another predetermined angle, the main-side control valve 60 injects the fluid into the first liquid port 451 c. Meanwhile, the first operation plate 511 abuts against the pressure release trigger end of the first pressure release valve 455, so that the first pressure release valve 455 is opened. When the opening/closing valve body 452 moves in a direction to compress the block chamber 451b, the fluid in the block chamber 451b flows out to the external reservoir tank from the first relief port 451h and the first relief valve 455 in this order.

In the embodiment shown in fig. 4 and 6, in order to prevent the accumulation of the fluid in the unsealing chamber 451a from affecting the movement of the open-close valve body 452 when the fluid is injected into the block chamber 451b, the open-close valve body 451 is provided with a second relief port 451i that is always communicated with the unsealing chamber 451a, and the open-close unit 45 further includes a second relief valve 456 that is communicated with the second relief port 451 i. When the contraction of the driven chamber 422 is completed, the first position detecting member 513 switches the first operation plate 511 to a certain predetermined angle, and the main-side control valve 60 injects the fluid to the fourth liquid port 451 f. Meanwhile, the first position detection member 513 abuts against the pressure release trigger end of the second pressure release valve 456, so that the second pressure release valve 456 is opened. When the open/close valve body 452 moves in a direction to compress the unsealing chamber 451a, the fluid in the unsealing chamber 451a flows out to the external reservoir from the second relief port 451i and the second relief valve 456 in this order.

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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A drain, 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 main side trigger mechanism is used for controlling the flow direction of the first pilot water flow;

the main side control valve is connected with the flushing mechanism and used for controlling the on-off of a flow passage between the driving cavity and a fluid supply source under the feedback of the first pilot water flow so as to adjust the expansion of the driving cavity;

the secondary side trigger mechanism is used for controlling the flow direction of the second pilot water flow;

and the secondary side control valve is connected with the flushing mechanism and used for controlling the on-off of a flow passage between the driven cavity and a fluid supply source under the feedback of the second pilot water flow so as to supplement fluid to the driven cavity.

2. The drain of claim 1, wherein the primary side control valve has a first pressurized cylinder; when the first pilot water flow is injected into the first pressurizing cylinder, the main-side control valve is switched to a conducting state under the action of the first pilot water flow; the primary side control valve is switched to an off state when the first pilot water flow flows out from the first pressurizing cylinder.

3. The drain of claim 2, wherein the primary side trigger mechanism causes the first pilot water to be injected toward the first pressurization cylinder when the primary side trigger mechanism is subjected to an activation operation.

4. The drain of claim 3, wherein the first pilot water flow has fluid pressure from the fluid supply to act on the primary side control valve when the first pilot water flow is injected into the first pressurized cylinder.

5. The drain of claim 2, wherein the master-side trigger mechanism is further connected to the flush mechanism, the master-side trigger mechanism causing the first pilot water flow to flow from the first pressurization cylinder when the slave chamber is contracted to a predetermined extent.

6. The drain of claim 1, wherein the secondary side control valve has a second pressurized cylinder; when the second pilot water flow is injected into the second pressurizing cylinder, the secondary side control valve is switched to a conducting state under the action force of the second pilot water flow; and when the second pilot water flow flows out of the second pressurizing cylinder, the secondary side control valve is switched to a closed state.

7. The drain of claim 6, wherein the secondary side trigger mechanism is further connected to the flush mechanism, the secondary side trigger mechanism causing the second pilot water to be injected into the second pressurized cylinder when the drive chamber expands to a predetermined extent.

8. The drain of claim 6, wherein the secondary side trigger mechanism is further coupled to the flush mechanism, the secondary side trigger mechanism causing the second pilot water flow to exit the second pressurized cylinder when the driven chamber expands to a predetermined extent.

9. The drain of claim 1, wherein the flush mechanism further comprises a drain port communicating to the follower chamber.

10. A sanitary installation, comprising: a body and a drain as claimed in any one of claims 1 to 9; 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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