Waterway control valve, closestool flushing system and closestool

Abstract

The invention provides a waterway control valve, a closestool flushing system and a closestool. The waterway control valve comprises a valve body, a driving mechanism, a first switching mechanism and a second switching mechanism, the valve body is provided with a water inlet and two water outlets, and water outlet paths are respectively formed between the water inlet and the two water outlets; the first switching mechanism and the second switching mechanism are arranged to respectively control the on-off of one water outlet waterway; the driving mechanism comprises a motor and a switching rotor driven by the motor, the switching rotor is provided with a first driving part and a second driving part, when the switching rotor rotates to a first position, the first driving part drives the first switching mechanism to open a water outlet path, and when the switching rotor rotates to a second position, the second driving part drives the second switching mechanism to open a water outlet path. And the second driving part drives the second switching mechanism to open the other water outlet path. By the adoption of the waterway control valve, the problem that in the prior art, a flushing valve of an electromagnetic valve is adopted to control connection and disconnection of a brush ring waterway and a jet waterway can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bathroom, in particular to a waterway control valve, a toilet flushing system and a toilet. BACKGROUND

[0002] At present, some water tankless intelligent toilets directly flush with tap water. The water tankless intelligent toilet flushes with tap water generally connects the waterway to the flushing valve, which is controlled by two electromagnetic valves to control the brushing waterway and the jet waterway. The brushing waterway is opened by the electromagnetic valve to brush the toilet. The jet waterway is opened by the electromagnetic valve to flush the intelligent toilet.

[0003] However, the on-off of the brushing waterway and the jet waterway is controlled by two electromagnetic valves, which is high in cost. Moreover, the existing electromagnetic valve cannot be manually flushed under no electricity condition, cannot be used under power failure condition, or needs to increase a battery box or a super capacitor to supply power to ensure flushing under power failure condition. SUMMARY

[0004] The application provides a waterway control valve, a toilet flushing system and a toilet to solve the problem of controlling the on-off of the brushing waterway and the jet waterway by the flushing valve with electromagnetic valves in the prior art.

[0005] The application provides a waterway control valve, comprising a valve body, a driving mechanism, a first switching mechanism and a second switching mechanism.

[0006] The valve body is provided with a water inlet and two water outlets, and a water outlet waterway is formed between the water inlet and the two water outlets respectively; wherein the water inlet is communicated with a water inlet cavity, and the two water outlets are respectively communicated with water outlet cavities.

[0007] The first switching mechanism and the second switching mechanism are arranged to control the on-off of one water outlet waterway respectively.

[0008] The driving mechanism comprises a motor and a switching rotor driven by the motor, the switching rotor has a first driving part and a second driving part, when the switching rotor rotates to a first position, the first driving part drives the first switching mechanism to open one water outlet waterway, and when the switching rotor rotates to a second position, the second driving part drives the second switching mechanism to open another water outlet waterway.

[0009] In one embodiment, the first switching mechanism and the second switching mechanism respectively comprise a control part and a switching part, the switching part is arranged on the corresponding water outlet waterway, and the control part is arranged to link the switching part.

[0010] The first driving part pushes the control part of the first switching mechanism when the switching rotor rotates to the first position, and the switching part linked with the control part opens a water outlet path.

[0011] In one embodiment, the switching part comprises a sealing diaphragm and a pressing spring, one side of the sealing diaphragm forms a pressure relief cavity with a pressure relief channel, and the pressing spring is located in the pressure relief cavity and presses on the sealing diaphragm; when the pressure relief channel is closed, the sealing diaphragm closes the corresponding water outlet path under the water pressure in the pressure relief cavity.

[0012] The control part is arranged to open the pressure relief channel when it is pushed by the first driving part or the second driving part, and the sealing diaphragm of the switching part linked with the control part moves towards the pressure relief cavity under the water pressure in the water inlet cavity after the pressure relief channel is opened, thereby opening the corresponding water outlet path.

[0013] In one embodiment, the sealing diaphragm is provided with an opening for communicating the pressure relief cavity and the water inlet cavity, and one end of the pressing spring is provided with a self-cleaning needle inserted into the opening.

[0014] In one embodiment, the control part comprises a rotating part rotatably installed on the valve body, a sealing assembly connected to the rotating part, and a return spring located between the valve body and the rotating part, and the sealing assembly is arranged to seal the pressure relief channel.

[0015] The rotating part drives the sealing assembly to move and open the pressure relief channel when it is pushed by the first driving part or the second driving part, and the rotating part is reset under the action of the return spring when it is released, and the sealing assembly closes the pressure relief channel.

[0016] In one embodiment, the valve body comprises a valve body main body and two valve covers fixed to the valve body main body, and the sealing diaphragm and the pressing spring are arranged between each valve cover and the valve body.

[0017] The pressure relief cavity is located between the valve cover and the sealing diaphragm, the pressure relief channel is arranged in the valve cover, and the rotating part, the sealing assembly and the return spring are installed on the valve cover.

[0018] In one embodiment, the valve body is provided with pressure relief water outlets respectively communicating with the two water outlets, and the pressure relief channels of the valve cover respectively communicate with the pressure relief water outlets, so that when the pressure relief channels are opened, the water in the pressure relief chamber flows into the water outlet through the pressure relief channels and the pressure relief water outlets.

[0019] In one embodiment, the pressure relief channel comprises a pressure relief hole directly communicating with the pressure relief chamber and an outflow channel communicating with the water outlet.

[0020] The valve cover is provided with a mounting chamber communicating with the pressure relief hole and the outflow channel.

[0021] The sealing assembly comprises a pressure relief rod, an opening sealing member and a pressure relief sealing member, the opening sealing member is arranged between the opening of the mounting chamber and the entrance of the outflow channel, the pressure relief sealing member is arranged at the end of the pressure relief hole facing the pressure relief chamber, the pressure relief rod is connected to the rotating member and passes through the opening sealing member, the pressure relief hole and the pressure relief sealing member in sequence from the opening of the mounting chamber to block the pressure relief hole, when the rotating member drives the pressure relief rod to move to a predetermined position away from the pressure relief chamber, the pressure relief hole is opened so that the pressure relief channel is opened.

[0022] Alternatively, the sealing assembly comprises a pressure relief rod connected to the rotating member and a sealing member arranged in the mounting chamber, the sealing member is provided with a first opening hole communicating with the pressure relief hole and a second opening hole communicating with the outflow channel, the pressure relief rod passes through the first opening hole to disconnect the communication between the pressure relief hole and the outflow channel, when the pressure relief rod moves away from the pressure relief chamber to make the first opening hole and the second opening hole communicate, the pressure relief hole and the outflow channel communicate.

[0023] In one embodiment, the water inlet chamber is provided with a one-way valve arranged to allow water to flow only in the direction of entering the water inlet chamber.

[0024] In one embodiment, the water inlet chamber is further provided with an air vent opening to the outside, the air vent opening is provided with an anti-siphon mechanism arranged to have a normally closed state of closing the air vent opening, when a negative pressure is generated in the water inlet chamber, the anti-siphon mechanism opens the air vent opening.

[0025] In one embodiment, the anti-siphon mechanism comprises an anti-siphon float and an anti-siphon spring connected to the anti-siphon float, the anti-siphon spring is arranged to push the anti-siphon float so that the anti-siphon float is in a position to block the air vent opening, when the negative pressure in the water inlet chamber exceeds a predetermined value, the anti-siphon float overcomes the elastic force of the anti-siphon spring under the action of the negative pressure to open the air vent opening.

[0026] In one embodiment, the water path control valve further comprises a manual driving mechanism, the manual driving mechanism comprising a manual control and a spring arranged between the valve body and the manual control, the manual control being capable of being controlled to drive the two switching mechanisms, thereby controlling the two water outlets.

[0027] In one embodiment, with a plane passing through the rotation center line of the switching rotor and the center of the water outlet as a center plane, the first switching mechanism and the water outlet corresponding to the first switching mechanism are located on one side of the center plane, and the second switching mechanism and the water outlet corresponding to the second switching mechanism are located on the other side of the center plane.

[0028] Embodiments of the present application also provide a toilet flushing system comprising the water path control valve as described above, the water inlet of the water path control valve being connected to a water supply pipe, and the two water outlets being respectively connected to a washing ring water path and a flushing water path of a toilet body.

[0029] Embodiments of the present application also provide a toilet comprising the toilet flushing system as described above.

[0030] The technical scheme provided by the present application controls the on-off of the two water outlets by the mode of rotating the switching rotor driven by the motor, which is low in cost and stable and reliable. In addition, compared with the mode of controlling the water path by using the electromagnetic valve, the scheme provided by the present application can manually control the on-off of the water path in the case of power failure (for example, power outage). That is, in the case of power failure, the manual mode can be used to replace the mode of driving the motor to apply force to the first switching mechanism and the second switching mechanism to control the on-off of the water path.

[0031] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. Other advantages of the present application can be realized and obtained by means of the schemes described in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings are included to provide an understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the technical scheme of the present application, and do not constitute a limitation on the technical scheme of the present application.

[0033] Figure 1 Fig. 1 is a structural schematic diagram of a water path control valve according to one embodiment of the present application;

[0034] Figure 2 Fig. 2 is a structural schematic diagram of the water path control valve in Fig. 1 in an exploded state; Figure 1

[0035] Figure 3 ​This is a structural schematic diagram of a valve body and some connected components in an exploded state according to an embodiment of the present application;

[0036] Figure 4 This is a structural schematic diagram of a switching component in a disassembled state according to an embodiment of the present application;

[0037] Figure 5 This is a schematic diagram of a cross-sectional structure of a waterway control valve according to an embodiment of the present application, wherein a water outlet chamber and a water inlet chamber are in a communicating state;

[0038] Figure 6 for Figure 5 Schematic diagram of some structures in ;

[0039] Figure 7 for Figure 5 Another part of the structural diagram;

[0040] Figure 8 for Figure 5 A schematic cross-sectional view of the structure in which another water outlet chamber and a water inlet chamber of the water control valve are in a connected state (wherein the other water outlet chamber and the water inlet chamber are in a connected state);

[0041] Figure 9 Schematic diagram of the cross-section structure of a water control valve according to one embodiment of the present application (wherein the two water outlet chambers and the water inlet chamber are both in a disconnected state);

[0042] Figure 10 A schematic cross-sectional view of a waterway control valve according to another embodiment of the present application;

[0043] Figure 11 Schematic diagram of the cross-section structure of a waterway control valve according to another embodiment of the present application;

[0044] Figure 12 for Figure 11 Enlarged view of point A in the middle;

[0045] Figure 13 Schematic diagram of the cross-section structure of a waterway control valve according to one embodiment of the present application.

[0046] Description of reference numerals:

[0047] 1-valve body; 11-valve body main body; 111-water inlet; 112-water outlet; 113-water inlet cavity; 114-water outlet cavity; 1141-pressure relief water outlet hole; 115-pressure relief cavity; 116-communication port; 117-annular wall; 118-motor mounting cavity; 119-vent; 110-stop; 12-valve cover; 121-pressure relief hole; 122-outflow channel; 123-mounting cavity; 13-protection cover; 14-connection head; 2-driving mechanism; 21-motor; 211-motor cover; 212-sealing gasket; 22-switching rotor; 221-first driving part; 222-second driving part; 223-first limiting part; 224-second limiting part; 3-control component; 31-rotating part; 32-sealing assembly; 321-pressure relief rod; 322-opening sealing part; 323-pressure relief sealing part; 324-first stop block; 325-second stop block; 326-fixed stop block; 327-sealing part; 3271-first opening; 3272-second opening; 33-return spring; 4-switching component; 41-sealing diaphragm; 411-opening; 42-pressing spring; 421-self-cleaning needle; 5-anti-siphon mechanism; 51-anti-siphon float; 52-anti-siphon spring; 53-mounting seat; 6-manual driving mechanism; 61-manual control; 62-spring; 7-check valve. DETAILED DESCRIPTION

[0048] The present application describes a number of embodiments, but the description is exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that numerous more embodiments and implementations are possible within the scope of the embodiments described in the present application. Although a number of possible combinations of features have been set forth in the accompanying figures and discussed above, many other combinations of the disclosed features are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be used in combination with any other feature or element of any other embodiment, or in replacement of any other feature or element in any other embodiment.

[0049] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application can also be combined with any conventional features or elements to form unique inventive solutions. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in the present application can be implemented alone or in any appropriate combination. Accordingly, the embodiments are not to be restricted, except as by the appended claims and their equivalents. Additionally, various modifications and changes can be made within the scope of the following claims.

[0050] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on the particular order of steps, this description should not be construe to imply that the steps are necessarily performed in this order. Other steps can be performed in between described steps without departing from the scope of the method or process as described. Thus, indications of a particular order of steps should not be understood to imply that these steps are necessarily order dependent as such. The methods and processes described herein can be performed in a variety of different sequences within the scope of the claims.

[0051] Embodiments of the present application provide a waterway control valve, such as Figures 1-12 as shown, comprising: a valve body 1, a driving mechanism 2, a first switching mechanism and a second switching mechanism.

[0052] The valve body 1 is provided with a water inlet 111 and two water outlets 112, between which water outlet waterways are formed respectively; wherein the water inlet 111 is communicated with a water inlet cavity 113, and the two water outlets 112 are respectively communicated with water outlet cavities 114. The first switching mechanism and the second switching mechanism are arranged to control the opening and closing of one water outlet waterway respectively, so as to control whether the two water outlets 112 discharge water.

[0053] The driving mechanism 2 comprises a motor 21 and a switching rotor 22 driven by the motor 21, the switching rotor 22 has a first driving part 221 and a second driving part 222, when the switching rotor 22 rotates to a first position, the first driving part 221 drives the first switching mechanism to open one water outlet waterway, and one of the water outlets 112 discharges water, when the switching rotor 22 rotates to a second position, the second driving part 222 drives the second switching mechanism to open the other water outlet waterway, and the other water outlet 112 discharges water.

[0054] The technical solution provided by the present application controls the opening and closing of the two water outlet waterways by the mode of the motor 21 driving the switching rotor 22 to rotate, which is low in cost and stable and reliable. In addition, compared with the mode of controlling the waterway by using a solenoid valve, the solution provided by the present application can manually control the opening and closing of the waterway in the case of power failure (for example, power failure). That is, in the case of power failure, the manual mode can be used instead of the motor driving mode to apply force to the first switching mechanism and the second switching mechanism to control the opening and closing of the waterway. In order to facilitate manual operation, a control part for facilitating manual operation can also be arranged to drive the switching mechanism to act, of course, it is not excluded that the first switching mechanism and the second switching mechanism are directly pushed by hand to act.

[0055] The waterway control valve provided by the application can be applied to a flushing system of a toilet. One of the water outlets 112 of the waterway control valve can be connected to a rim waterway of the toilet, another water outlet 112 is connected to a flushing waterway of the toilet, and the water inlet 111 is connected to a water supply system, such as a water pipe providing tap water, so that the opening and closing of the rim waterway and the flushing waterway of the toilet can be realized through the waterway control valve. When flushing the toilet, the rim waterway can be opened first to flush the rim of the toilet bowl, then the flushing waterway is opened to flush the bottom of the toilet bowl, and then the rim waterway is opened again to flush the rim. Of course, the waterway control valve provided by the application is not limited to be used in the flushing system of the toilet.

[0056] In one embodiment, the first switching mechanism and the second switching mechanism are respectively provided with a control component 3 and a switching component 4. The switching component 4 is arranged on the corresponding water outlet to control the opening and closing of the waterway, and the control component 3 is arranged to drive the switching component 4.

[0057] In one embodiment, the first switching mechanism and the second switching mechanism are respectively provided with a control component 3 and a switching component 4. The switching component 4 is arranged on the corresponding water outlet to control the opening and closing of the waterway, and the control component 3 is arranged to drive the switching component 4.

[0058] In one example, referring to Figure 5 , the valve body 1 is provided with a stop portion 110, and the switching rotor 22 is provided with a first limiting portion 223 and a second limiting portion 224. When the switching rotor 22 rotates to the first position, the first driving portion 221 pushes the control component 3 of the first switching mechanism, and the first limiting portion 223 cooperates with the stop portion 110 to prevent the switching rotor 22 from continuing to rotate. When the switching rotor 22 rotates to the second position, the second driving portion 222 pushes the control component 3 of the second switching mechanism, and the second limiting portion 224 cooperates with the stop portion 110 to prevent the switching rotor 22 from continuing to rotate.

[0059] In Figures 5-9In the embodiment, the switching component 4 comprises a sealing diaphragm 41 and a top pressure spring 42, one side of the sealing diaphragm 41 forms a pressure relief cavity 115 with a pressure relief passage, and the top pressure spring 42 is located in the pressure relief cavity and presses on the sealing diaphragm 41; when the pressure relief passage is closed, the sealing diaphragm 41 closes the water outlet channel corresponding to the water pressure of the pressure relief cavity, and the elastic force of the top pressure spring 42 also pushes the sealing diaphragm 41 to close the water outlet channel; the control component 3 is arranged to open the pressure relief passage when being pushed by the first driving part 221 or the second driving part 222 (or being manually pushed), and after the pressure relief passage is opened, the sealing diaphragm 41 of the switching component 4 connected with the control component 3 moves towards the pressure relief cavity 115 under the water pressure of the water inlet cavity 113, so as to open the corresponding water outlet channel.

[0060] In the embodiment, the pressure relief cavity 115 and the water inlet cavity 113 are kept in communication, so that the water pressures of the pressure relief cavity 115 and the water inlet cavity 113 are equal, so that no negative pressure is formed in the pressure relief cavity 115, and the sealing diaphragm 41 can be abutted on the predetermined structure under the water pressure of the pressure relief cavity and the elastic force of the top pressure spring 42, so as to close the passage between the water inlet cavity 116 and the corresponding water outlet cavity 114 (i.e. to close one of the water outlet channels), and after the pressure relief passage is opened, the pressure relief cavity 115 is relieved, the water inlet pressure in the water inlet cavity 113 is greater than the pressure of the pressure relief cavity 115, and the sealing diaphragm 41 moves towards the pressure relief cavity 115 under the pressure difference and overcomes the elastic force of the top pressure spring 42, so that the passage between the water inlet cavity 113 and the water outlet cavity 114 is opened. In the embodiment, since the water outlet channel can be opened only by driving the control component 3 to open the pressure relief passage for pressure relief, a smaller driving force is required to control the water channel.

[0061] In order to keep the pressure relief cavity 115 and the water inlet cavity 113 in communication, refer to Figure 6 、 Figure 7 and Figure 3 , the sealing diaphragm 41 is provided with an opening hole 411 for communicating the pressure relief cavity 115 and the water inlet cavity 113, the top pressure spring 42 is located in the pressure relief cavity 115, and one end of the top pressure spring 42 is provided with a self-cleaning needle 421 inserted into the opening hole 411. When the sealing diaphragm 41 moves to open and close the water outlet channel, the top pressure spring 42 is stretched and contracted, and the self-cleaning needle 421 moves in the opening hole 411, so as to dredge the opening hole 411 to prevent it from being blocked.

[0062] In one embodiment, the control component 3 comprises a rotating member 31 rotatably mounted on the valve body 1, a sealing assembly 32 connected to the rotating member 31, and a return spring 33 between the valve body 1 and the rotating member 31, the sealing assembly 32 being arranged to seal the pressure relief passage. When the rotating member 31 is rotated by the first driving portion 221 or the second driving portion 222, the rotating member 31 drives the sealing assembly 32 to move and open the pressure relief passage, thereby opening the water outlet passage; when the rotating member 31 is released, the rotating member 31 is returned under the action of the return spring 33, the sealing assembly 32 seals the pressure relief passage, and after the pressure relief passage is sealed, the sealing diaphragm 41 is closed under the water pressure in the pressure relief chamber to close the water outlet passage.

[0063] To facilitate installation of the switching mechanism on the valve body 1, the valve body 1 is arranged to comprise a valve body main body 11 and two valve covers 12 fixed to the valve body main body 11, as shown in Figures 2-4 , a sealing diaphragm 41 and a pressing spring 42 are arranged between each valve cover 12 and the valve body 11. The pressure relief chamber 115 is located between the valve cover 12 and the sealing diaphragm 11, the pressure relief passage is arranged in the valve cover 12, and the rotating member 31, the sealing assembly 32, and the return spring 33 are mounted on the valve cover 12.

[0064] Referring to Figure 3 and Figure 5 , the valve body main body 11 is provided with an annular wall 117 surrounding the communication port 116, the communication port 116 communicates the water outlet chamber 114 and the water inlet chamber 113, the side of the sealing diaphragm 41 away from the annular wall 117 forms the pressure relief chamber 115, and the sealing diaphragm 41 is closed against the annular wall 117 under the action of the pressing spring 42, the communication port 116 corresponding to the water outlet chamber 114 and the water inlet chamber 113 is disconnected, and thus the water outlet 112 on the water passage does not discharge water. When the pressure relief passage is opened, the pressure relief chamber 115 is relieved, the sealing diaphragm 41 moves away from the annular wall 117 under the water pressure in the water inlet chamber 113 and towards the pressure relief chamber 115, thereby opening the communication port 116, the communication port 116 communicates the water outlet chamber 114 and the water inlet chamber 113, and thus the water outlet 112 on the water passage discharges water.

[0065] The valve body main body 11 is provided with a pressure relief water outlet hole 1141 communicating with the two water outlet chambers 114, respectively, and the pressure relief passage on each valve cover 12 communicates with one pressure relief water outlet hole 1141, respectively, and when the pressure relief passage is opened, the water in the pressure relief chamber 115 enters the water outlet chamber 114 through the pressure relief passage and the pressure relief water outlet hole 1141.

[0066] As shown in Figures 5-7As shown, the pressure relief channel is arranged to include a pressure relief hole 121 directly communicating with the pressure relief chamber 115 and an outflow channel 122 communicating to the water outlet chamber 114; the valve cover 12 is arranged with a mounting chamber 123 communicating with both the pressure relief hole 121 and the outflow channel 122, when the pressure relief channel is opened, water in the pressure relief chamber 115 enters the mounting chamber 123 of the valve cover 12 from the pressure relief hole 121, and then flows from the mounting chamber 123, through the outflow channel 122, the pressure relief water outlet hole 1141 and into the water outlet chamber 114. The sealing assembly 32 is arranged to close the pressure relief channel by closing the pressure relief hole 121 or disconnecting the communication between the pressure relief hole 121 and the outflow channel 122.

[0067] In Figures 5-7 the example, the sealing assembly 32 includes a pressure relief rod 321, an opening seal 322 and a pressure relief seal 323, the opening seal 322 is arranged to be installed between the opening end of the mounting chamber 123 and the entrance of the outflow channel 122, the pressure relief seal 323 is arranged at the end of the pressure relief hole 121 facing the pressure relief chamber 115, the pressure relief rod 321 is connected to the rotating member 31 and passes through the opening end seal 322, the pressure relief hole 121 and the pressure relief seal 323 in sequence from the opening of the mounting chamber 123 to block the pressure relief hole 121, when the rotating member 31 drives the pressure relief rod 321 to move to a predetermined position away from the pressure relief chamber 115, the pressure relief hole 121 is opened and the pressure relief channel is opened; wherein the opening seal 322 is arranged to seal the opening end of the mounting chamber 123 for the pressure relief rod 121 to extend into, and a first stop block 324 fixed to the valve cover 12 is further arranged at the side of the opening seal 322 away from the pressure relief chamber 115, for preventing the opening seal 322 from coming out of the valve cover 12, and a second stop block 325 fixed to the valve cover 12 is arranged at the side of the pressure relief seal 323 facing the pressure relief chamber 115, for preventing the pressure relief seal 323 from coming out of the valve cover 12. Wherein the second stop block 325 is arranged to be unable to block water in the pressure relief chamber 115 from entering the pressure relief hole 121, and specifically, an opening or notch can be arranged on the second stop block 325.

[0068] In this embodiment, the pressure relief seal 323 adopts a dynamic sealing structure, when the pressure relief channel is closed, the end of the pressure relief rod 321 enters the opening of the pressure relief seal 323 without extending to the other side, which can effectively reduce the moving resistance of the pressure relief rod 321, and when the pressure relief channel is not opened, the pressure relief seal 323 can be pressed against the valve cover 12 and the pressure relief rod 321 under the action of water pressure to enhance the sealing effect.

[0069] It can be understood that the structure of the sealing assembly 32 is not limited to the structure in the above-mentioned embodiment, and can be various. For example, Figure 11 and Figure 12In the example shown in FIG. 1, the sealing assembly 32 includes a pressure relief rod 321 connected to the rotating member 31 and a sealing member 327 installed in the mounting cavity 123 of the valve cover 12, the sealing member 327 is provided with a first opening 3271 communicating with the pressure relief hole 121 and a second opening 3272 communicating with the outflow channel 122, the pressure relief rod 321 passes through the first opening 3271 to disconnect the communication between the pressure relief hole 121 and the outflow channel 122, and when the first opening 3271 and the second opening 3272 are communicated by moving the pressure relief rod 321 away from the pressure relief cavity 115, the pressure relief hole 121 and the outflow channel 122 are communicated. To prevent the sealing member 327 from falling out of the valve cover 12, a fixed stopper 326 is provided on the side of the sealing member 327 close to the opening of the mounting cavity 123.

[0070] In addition, as shown in Figure 1 and Figure 2 , the valve body 11 is provided with a motor mounting cavity 118, the motor 21 is installed in the motor mounting cavity 118, the motor cover 211 is buckled to the opening of the motor mounting cavity 118, and the sealing gasket 212 is arranged between the motor cover 211 and the valve body 11. The driving end of the motor 21 is connected to the switching rotor 22, and the switching rotor 22 is shielded by the protective cover 13. As shown in Figure 3 , for the convenience of structure manufacturing, the valve body 11 is also connected with the connecting head 14, and the connecting head 14 is provided with two water outlets 112.

[0071] In one embodiment, as shown in Figures 5-11 , a center plane is taken as the center plane through the rotation center line of the switching rotor 11 and the center of the water inlet 111, the first switching mechanism and the water outlet 112 corresponding to the first switching mechanism are located on one side of the center plane, and the second switching mechanism and the water outlet corresponding to the second switching mechanism are located on the other side of the center plane. That is, the waterway control valve can be provided as a substantially symmetrical structure.

[0072] The specific process of the driving mechanism 2 controlling the water outlet of the two water outlets 112 in one embodiment of the present application will be described below. Figures 5-8

[0073] First, the process of opening the left water outlet 12 by the first switching mechanism will be described according to Figure 5 . Among them, Figure 6 is an enlarged view of the left side part in Figure 5 , and Figure 7 is an enlarged view of the right side part in Figure 5 . (The left and right described herein are described for the convenience of understanding the orientation shown in the example according to Figure 5 , but are not limited to this orientation arrangement.)

[0074] ​When the motor 21 of the driving mechanism 2 drives the switching rotor 22 to rotate until the first limiting portion 223 cooperates with the stopper 110, the switching rotor 22 rotates to the first position, such as Figure 5 In the state shown, the first driving portion 221 of the switching rotor 22 drives the rotating member 31 of the left control component 3 to rotate, thereby the rotating member 31 drives the sealing assembly 32 to operate, and the sealing assembly 32 opens the pressure relief hole 121, and the pressure relief hole 121 is connected to the outflow channel 122. The pressure relief channel is opened, and the water in the pressure relief chamber 115 flows out to the water outlet chamber 114 along the pressure relief hole 121, the outflow channel 122, and the pressure relief outlet 1141. Figure 6 The dotted line in FIG shows the path for the water in the pressure relief chamber 115 on the left to flow out through the pressure relief channel.

[0075] After the pressure relief chamber 115 is depressurized, the sealing diaphragm 41 moves toward the pressure relief chamber 115 under the action of the water pressure of the water inlet chamber 113, thereby opening the communication port 116 of the sealing diaphragm 41, and the water outlet chamber 114 is connected to the water inlet chamber 113 through the communication port 116, so that water flows out of the water outlet 112 on the left side of the figure. Figure 6 The middle dotted line shows the path of water in the water inlet chamber 113 entering the water outlet chamber 114 through the communication port 116 opened by the sealing diaphragm 41 and then flowing out from the water outlet 112 .

[0076] When the first driving part 221 of the switching rotor 22 drives the first switching mechanism to open the water outlet 112 on the left, the rotating member 31 on the right is not pushed by the second driving part 222. Figure 7 As shown, the pressure relief channel on the right is closed, and thus the water outlet 112 on the right is closed.

[0077] like Figure 8 As shown, when the motor 21 of the driving mechanism 2 drives the switching rotor 22 to rotate until the second limit portion 224 cooperates with the stop portion 110, the switching rotor 22 rotates to the second position. At this time, the second driving portion 222 of the switching rotor 22 drives the rotating member 31 of the right control component 3 to rotate, so that the rotating member 31 drives the sealing assembly 32 to operate. The sealing assembly 32 opens the pressure relief hole 121, and the pressure relief hole 121 is connected to the outflow channel 122. The pressure relief channel on the right is opened, and the water in the pressure relief chamber 115 flows out to the water outlet chamber 114 along the pressure relief hole 121, the outflow channel 122, and the pressure relief water outlet 1141. The sealing diaphragm 41 opens the connection between the right water outlet chamber 114 and the water inlet chamber 113, thereby opening the water outlet 112 on the right. At this time, the water outlet 112 on the left is closed.

[0078] When water does not flow out of the two water outlets 112, the switching rotor 22 rotates until the first driving part 221 and the second driving part 222 are both in the state of releasing the control component 3, such as Figure 9 As shown, at this time both pressure relief channels are in closed state.

[0079] In one embodiment, the first and second switching mechanisms are conveniently controlled in the absence of power, for example as shown in Figure 10 The waterway control valve further comprises a manual driving mechanism 6, which comprises a manual control 61 and a spring 62 arranged between the valve body 1 and the manual control 61. The manual control 61 can be operated to drive both switching mechanisms, thereby controlling the water flow of both water outlets. When the manual control 61 is released, it is reset by the spring 62, thereby closing the water outlets.

[0080] As shown in Figure 10 , by pressing the manual control 61, both rotating members 3 can be driven to rotate, thereby causing water to flow from both water outlets. When the manual control 61 is pressed on one side, only the rotating member 3 on that side is driven to rotate, thereby controlling the water flow of one water outlet. It will be appreciated that two manual controls 61 can be provided to control the two rotating members 3, respectively.

[0081] In one embodiment of the present application, as shown in Figure 13 , the water inlet cavity 113 is provided with a one-way valve 7, which is arranged to allow water to flow only in the direction of entering the water inlet cavity 113, i.e. water in the water inlet cavity 113 cannot flow out of the water inlet 111 in the opposite direction.

[0082] In one embodiment, as shown in Figure 1 , Figure 2 and Figure 13 , the water inlet cavity 113 is further provided with an air vent 119 leading to the outside, which is provided with an anti-siphon mechanism 5. The anti-siphon mechanism 5 is arranged to have a normally closed state of closing the air vent 119 (i.e. when the negative pressure in the water inlet cavity 113 is not higher than a predetermined value, the air vent 119 is closed by the anti-siphon mechanism 5), and when the negative pressure in the water inlet cavity 113 exceeds the predetermined value, the anti-siphon mechanism 5 opens the air vent 119. This prevents the waterway control valve from siphoning.

[0083] In one example, referring to Figure 2 and Figure 13 , the anti-siphon mechanism 5 comprises an anti-siphon float 51 and an anti-siphon spring 52 connected to the anti-siphon float 51. The anti-siphon spring 52 is arranged to push the anti-siphon float 51 so that the anti-siphon float 51 is in a position to block the air vent 119. When the negative pressure in the water inlet cavity 113 exceeds the predetermined value, the anti-siphon float 51 overcomes the elastic force of the anti-siphon spring 52 under the action of the negative pressure to open the air vent 119.

[0084] In the example, the mounting seat 53 is arranged at the vent 119, and the mounting seat 53 is fixed to the valve body 1 by means of bolts or the like. The anti-siphon float 51 is arranged to abut against the mounting seat 53 under the elastic force of the anti-siphon spring 52, so as to close the vent 119. The anti-siphon spring 52 is sleeved on the column of the anti-siphon float 51 towards the inside of the valve body 1.

[0085] The embodiment of the present application also provides a toilet flushing system, which comprises the water path control valve as described above, the water inlet 111 of the water path control valve is connected with a water supply pipe, and the two water outlets 112 are respectively connected with a rim water path and a flushing water path of a toilet body. When flushing the toilet, the rim water path can be opened to wash the toilet, then the flushing water path is opened to flush the toilet, and the rim water path is opened again to wash the toilet after flushing.

[0086] The embodiment of the present application also provides a toilet, which comprises the toilet flushing system as described above.

[0087] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "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 the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0088] In addition, the terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include at least one of the features.

[0089] In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0090] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0091] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly contacting the first and second features, or indirectly contacting the first and second features through an intermediate medium. Also, the first feature "over", "above" and "on top of" the second feature can be directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "under", "below" and "underneath" the second feature can be directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0092] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearance of the above terms in various places in the specification are not necessarily referring to the same embodiment or example. Also, the particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the different embodiments or examples described in the specification can be combined and combined with each other in suitable manners, without mutual contradiction.

[0093] Although the embodiments of the present application have been shown and described above, it is to be understood that the above-described embodiments are exemplary, and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A waterway control valve, characterized in that: include: A valve body, a driving mechanism, a first switching mechanism and a second switching mechanism; The valve body is provided with a water inlet and two water outlets, and water outlet waterways are formed between the water inlet and the two water outlets; wherein the water inlet is connected to a water inlet cavity, and the two water outlets are respectively connected to water outlet cavities; The first switching mechanism and the second switching mechanism are configured to control the on / off of one of the water outlet waterways respectively; The driving mechanism includes a motor and a switching rotor driven by the motor, and the switching rotor has a first driving part and a second driving part. When the switching rotor rotates to a first position, the first driving part drives the first switching mechanism to open one of the water outlet waterways. When the switching rotor rotates to a second position, the second driving part drives the second switching mechanism to open the other water outlet waterway.

2. The waterway control valve according to claim 1, characterized in that: The first switching mechanism and the second switching mechanism respectively include a control component and a switching component, the switching component is arranged on the corresponding water outlet waterway, and the control component is arranged to link the switching component; When the switching rotor rotates to the first position, the first driving part pushes the control component of the first switching mechanism, and the switching component linked to the control component opens a water outlet channel. When the switching rotor rotates to the second position, the second driving part pushes the control component of the second switching mechanism, and the switching component linked to the control component opens another water outlet channel.

3. The waterway control valve according to claim 2, characterized in that: The switching component includes: a sealing diaphragm and a pressure spring. A pressure relief chamber having a pressure relief channel is formed on one side of the sealing diaphragm. The pressure spring is located in the pressure relief chamber and presses against the sealing diaphragm. When the pressure relief channel is closed, the sealing diaphragm closes the corresponding water outlet channel under the action of the water pressure in the pressure relief chamber. The control component is configured to open the pressure relief channel when pushed by the first drive unit or the second drive unit. After the pressure relief channel is opened, the sealing diaphragm of the switching component linked to the control component moves toward the pressure relief chamber under the action of the water pressure in the water inlet chamber, thereby opening the corresponding water outlet waterway.

4. The waterway control valve according to claim 3, characterized in that: The sealing diaphragm is provided with an opening for communicating the pressure relief chamber and the water inlet chamber, and one end of the pressure spring is provided with a self-cleaning needle inserted into the opening.

5. The waterway control valve according to claim 3, characterized in that: The control component includes a rotating member rotatably mounted on the valve body, a sealing assembly connected to the rotating member, and a return spring located between the valve body and the rotating member, wherein the sealing assembly is configured to seal the pressure relief channel; When the rotating member is pushed by the first driving part or the second driving part, the sealing assembly moves to open the pressure relief channel. When the rotating member is released, it resets under the action of the reset spring, and the sealing assembly closes the pressure relief channel.

6. The waterway control valve according to claim 5, characterized in that: The valve body comprises a valve body main body and two valve covers fixed to the valve body main body, and the sealing diaphragm and the top pressure spring are arranged between each valve cover and the valve body; The pressure relief chamber is located between the valve cover and the sealing diaphragm, the pressure relief channel is provided on the valve cover, and the rotating member, the sealing assembly and the return spring are installed on the valve cover.

7. The waterway control valve according to claim 6, characterized in that: The valve body is provided with pressure relief water outlet holes respectively connected with the two water outlet chambers, and the pressure relief channels on each valve cover are respectively connected with one of the pressure relief water outlet holes. When the pressure relief channels are opened, the water in the pressure relief chamber enters the water outlet chamber through the pressure relief channels and the pressure relief water outlet holes.

8. The waterway control valve according to claim 6, characterized in that: The pressure relief channel includes a pressure relief hole directly connected to the pressure relief chamber and an outflow channel connected to the water outlet chamber; The valve cover is provided with a mounting cavity which is in communication with both the pressure relief hole and the outflow channel; wherein, The sealing assembly includes a pressure relief rod, an opening seal, and a pressure relief seal. The opening seal is configured to be installed between an opening at one end of the installation cavity and an inlet of the outflow channel. The pressure relief seal is provided at an end of the pressure relief hole facing the pressure relief cavity. The pressure relief rod is connected to the rotating member and passes through the opening seal, the pressure relief hole, and the pressure relief seal in sequence from the opening of the installation cavity to seal the pressure relief hole. When the rotating member drives the pressure relief rod to move away from the pressure relief cavity to a predetermined position, the pressure relief hole is opened, thereby opening the pressure relief channel. Alternatively, the sealing assembly includes a pressure relief rod connected to the rotating member and a sealing component installed in the installation cavity, the sealing component is provided with a first opening connected to the pressure relief hole and a second opening connected to the outflow channel, the pressure relief rod passes through the first opening to disconnect the pressure relief hole from the outflow channel, and when the pressure relief rod moves in a direction away from the pressure relief cavity so that the first opening and the second opening are connected, the pressure relief hole and the outflow channel are connected.

9. The waterway control valve according to any one of claims 1 to 8, characterized in that: The water inlet chamber is provided with a one-way valve, and the one-way valve is configured to only allow water to flow in a direction entering the water inlet chamber.

10. The waterway control valve according to any one of claims 1 to 8, characterized in that: The water inlet chamber is also provided with an air vent leading to the outside, and the air vent is provided with an anti-siphon mechanism. The anti-siphon mechanism is set to a normally closed state with the air vent closed. When negative pressure is generated in the water inlet chamber, the anti-siphon mechanism opens the air vent.

11. The waterway control valve according to claim 10, characterized in that: The anti-siphon mechanism includes an anti-siphon float and an anti-siphon spring connected to the anti-siphon float. The anti-siphon spring is configured to push the anti-siphon float so that the anti-siphon float is in a position to block the air vent. When the negative pressure in the water inlet chamber exceeds a predetermined value, the anti-siphon float overcomes the elastic force of the anti-siphon spring under the action of the negative pressure and opens the air vent.

12. The waterway control valve according to any one of claims 1 to 8, characterized in that: It also includes a manual drive mechanism, which includes a manual operating member and a spring arranged between the valve body and the manual operating member. The manual operating member can be operated to drive the two switching mechanisms, thereby controlling the two water outlet waterways.

13. The waterway control valve according to any one of claims 1 to 8, characterized in that: Taking the plane passing through the rotation center line of the switching rotor and the center of the water outlet as the center plane, the first switching mechanism and the water outlet corresponding to the first switching mechanism are located on one side of the center plane, and the second switching mechanism and the water outlet corresponding to the second switching mechanism are located on the other side of the center plane.

14. A toilet flushing system, characterized in that: It comprises a water circuit control valve according to any one of claims 1 to 13, wherein the water inlet of the water circuit control valve is connected to a water supply pipe, and the two water outlets are respectively connected to a wash water circuit and a flush water circuit of a toilet body.

15. A toilet, characterized in that , including a toilet flushing system according to claim 14.

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