Integrated flushing valve and closestool flushing system

Abstract

The integrated flushing valve comprises a valve body assembly, a first switching mechanism and a second switching mechanism, the valve body assembly comprises a valve body and at least one valve deck, the valve body is provided with a water inlet, a water passing channel, a first water outlet and a second water outlet, the valve deck is connected to the valve body, and the first switching mechanism and the second switching mechanism are arranged on the valve deck. The first valve cavity is located between the water inlet and the water inlet end of the water passing channel, the second valve cavity is located between the water outlet end of the water passing channel and the first water outlet and the second water outlet, and the first switching mechanism partially enters the first valve cavity and controls the water inlet to be communicated with the water inlet end of the water passing channel or not. The second switching mechanism partially enters the second valve cavity and controls the water outlet end of the water passing channel to be communicated with the first water outlet or the second water outlet. According to the utility model, the assembly error among the modules can be reduced, and the reliability and consistency after assembly are improved.

Description

Technical Field

[0001] The utility model relates to the field of sanitary ware, in particular to an integrated flushing valve and a toilet flushing system. Background Art

[0002] At present, the flushing method of smart toilets generally adopts low-tank flushing or tankless flushing with tap water. Low-tank flushing has poor flushing effect due to the low water level in the water tank, so water pumps are generally used for pressurization. The water pump pressurizes the water in the water tank and then sends it to the distribution valve, which controls the brush ring water channel and the jet water channel of the toilet. Tankless flushing with tap water generally connects the water channel to the flushing valve, and two solenoid valves control the brush ring water channel and the jet water channel respectively, and directly uses tap water for flushing.

[0003] However, the low-tank flushing method consumes a lot of power from the water pump, and the water pump cannot work when the power is off, rendering the toilet unusable; the non-tank flushing method uses two solenoid valves to control the water circuit, which is more expensive.

[0004] In order to solve the above problems, a hybrid integrated valve has appeared in the prior art, which can be used for low water tank flushing to solve the problem that the water pump cannot work when the power is off and the toilet cannot be flushed. It can also be used for flushing without a water tank. It uses a stepper motor to provide driving force. Compared with the prior art method of using a solenoid valve to control the on and off of the water channel, the cost is lower. However, this hybrid integrated valve has the following shortcomings: its modules are relatively scattered, relying on screws to lock, the assembly is cumbersome, and the consistency after assembly is poor. Utility Model Content

[0005] The utility model aims at the technical problems existing in the prior art and provides an integrated flushing valve and a toilet flushing system, which can reduce the assembly errors between modules and improve the reliability and consistency after assembly.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an integrated flushing valve, including a valve body assembly, a first switching mechanism and a second switching mechanism, the valve body assembly including a valve body and at least one valve cover, the valve body is provided with a water inlet, a water flow channel, a first water outlet and a second water outlet, the valve cover is connected to the valve body, and together with the valve body, forms a first valve cavity between the water inlet and the water inlet end of the water flow channel and a second valve cavity between the water outlet end of the water flow channel and the first water outlet and the second water outlet, the first switching mechanism partially enters the first valve cavity, and controls whether the water inlet is connected to the water inlet end of the water flow channel, the second switching mechanism partially enters the second valve cavity, and controls whether the water outlet end of the water flow channel is connected to the first water outlet or the second water outlet.

[0007] Furthermore, the first switching mechanism includes a first switching component arranged in the first valve chamber and a first control component for linking the action of the first switching component, and the second switching mechanism includes a second switching component arranged in the second valve chamber and a second control component for linking the action of the second switching component; the first control component and the second control component are independent components and are respectively installed on the valve cover.

[0008] Furthermore, it also includes a driving module, which is installed on the valve cover and is located between the first control component and the second control component, and the driving module controls whether the first control component and the second control component are in action; the driving module includes a stepper motor and a switching rotor, the stepper motor is installed on the valve cover, the switching rotor is installed on the output shaft of the stepper motor, and the switching rotor is provided with a first driving part and a second driving part, the switching rotor has a first working state in which the first control component is pushed by its first driving part, and a second working state in which the first control component is first pushed by the first driving part and then the second control component is pushed by the second driving part.

[0009] Furthermore, the first switching component is a first diaphragm assembly, which divides the first valve chamber into a first water flow chamber and a first back pressure chamber, the first water flow chamber is connected to the water inlet, and the first water flow chamber is connected to the first back pressure chamber through a first small hole provided on the first diaphragm assembly; the first back pressure chamber is provided with a first pressure relief hole, and the first control component controls whether the first pressure relief hole is opened or not, so that the first diaphragm assembly controls whether the first water flow chamber is connected to the water inlet end of the water passage according to the water pressure change in the first back pressure chamber.

[0010] Furthermore, the valve cover is provided with a first pressure relief chamber connected to the first pressure relief hole, and the first control component is installed in the first pressure relief chamber; the first pressure relief chamber is connected to the water passage through a linear pressure relief waterway.

[0011] Furthermore, the pressure relief water channel includes an inclined water channel arranged on the valve cover and a water through hole arranged on the valve body and connected to the water through channel, one end of the inclined water channel is connected to the first pressure relief chamber, and the other end of the inclined water channel is connected to the water through hole; the first pressure relief hole is located on the side of the first back pressure chamber, and also includes a water-blocking cover, which is located in the first back pressure chamber and extends upward, and the water-blocking cover separates the first back pressure chamber into a first water channel and a second water channel, the first water channel and the second water channel are connected through the water through gap between the upper end of the water-blocking cover and the valve cover, and the second water channel is connected to the first pressure relief hole.

[0012] Furthermore, the second switching component is a second diaphragm assembly, which divides the second valve chamber into a second water flow chamber and a second back pressure chamber. The second water flow chamber is connected to the water outlet end of the water passage, and the second water flow chamber is connected to the second back pressure chamber through a second small hole provided on the second diaphragm assembly. The second back pressure chamber is provided with a second pressure relief hole. The second control component controls whether the second pressure relief hole is opened or not, so that the second diaphragm assembly controls the second water flow chamber to be connected to the first water outlet or the second water outlet according to the water pressure change in the second back pressure chamber; the valve cover is provided with a second pressure relief chamber connected to the second pressure relief hole, the second control component is installed in the second pressure relief chamber, and the valve cover is also provided with a pressure relief port connected to the second pressure relief chamber.

[0013] Furthermore, the second valve chamber is also provided with an atmospheric port leading to the outside, and an anti-siphon float is arranged between the atmospheric port and the water outlet end of the water passage. When water is discharged from the water outlet end of the water passage, the anti-siphon float is pushed upward by the water flow to close the atmospheric port; the valve body is also provided with a water replenishment port for replenishing water to the water tank, and the water replenishment port is connected to the water inlet.

[0014] Furthermore, the number of the valve cover is one, or the number of the valve cover is multiple, and the first valve cavity and the second valve cavity are respectively surrounded by different valve covers and the valve body.

[0015] The utility model further provides a toilet flushing system, including the integrated flushing valve as described above in the utility model, the water inlet is connected to a normal pressure water source, the first water outlet is connected to a wash ring water path of a toilet body, and the second water outlet is connected to a jet water path of the toilet.

[0016] Furthermore, it also includes a water tank and a water pump, the water inlet end of the water pump is connected to the water tank, and the water outlet end of the water pump is connected to the jet water channel of the toilet.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The valve body assembly of the utility model is based on a valve body and at least one valve cover connected as the basic structure, which can reduce the assembly error between various parts, improve the reliability and consistency of the valve body assembly, reduce the assembly process, and improve the assembly efficiency.

[0019] 2. The first control component, the second control component and the drive module are installed on the same valve cover, which can ensure the assembly consistency and operation reliability of the drive module, the first control component and the second control component. In particular, the first control component and the second control component are independently assembled into components and then installed on the valve cover, which can simplify the assembly and facilitate after-sales maintenance and replacement.

[0020] 3. The first pressure relief chamber is connected to the water passage through a linear pressure relief water channel, so that the pressure relief water channel can be directly formed by core pulling during injection molding, and there is no need to use steel balls to block the port. Therefore, the utility model can reduce the use of two steel balls and two steel ball pressing processes, which is conducive to reducing assembly costs and improving reliability after assembly.

[0021] 4. The pressure relief water channel includes an inclined water channel arranged on the valve cover and a water hole arranged on the valve body. The inclined water channel can be used to avoid the first valve cavity and make the overall structure more compact.

[0022] 5. The setting of the water-blocking cover makes the water path of the first back pressure chamber turn upward and then flow to the first pressure relief hole, which is conducive to the discharge of air inside the first back pressure chamber when the first pressure relief hole is opened, thereby making the first diaphragm assembly more stable when opened and closed, and avoiding abnormal noise.

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments; however, the integrated flushing valve and toilet flushing system of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an exploded schematic diagram of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 3 It is a cross-sectional view of the valve body of the utility model;

[0027] Figure 4 It is an exploded schematic diagram of the water inlet part of the utility model (the valve body and valve cover are partial);

[0028] Figure 5 is a cross-sectional view of the first control component of the utility model;

[0029] Figure 6 It is an exploded schematic diagram of the switching part of the utility model (the valve body and valve cover are partial);

[0030] Figure 7 It is an exploded schematic diagram of the driving part of the utility model (the valve cover is a partial embodiment);

[0031] Figure 8 It is a structural schematic diagram of the driving part of the utility model (the valve cover is a partial embodiment);

[0032] Fig. 9 It is a structural schematic diagram of the utility model in a closed state of the first switching mechanism (partial cross-section);

[0033] Fig.10It is a structural schematic diagram of the utility model in the open state of the first switching mechanism (partial cross-section);

[0034] Fig.11 It is a schematic diagram of water inlet of the water passage of the utility model;

[0035] Fig.12 It is a structural schematic diagram of the utility model in the water outlet state at the first water outlet (partial cross-section);

[0036] Fig.13 It is a structural schematic diagram of the utility model in the water outlet state at the second water outlet (partial cross-section);

[0037] In the figure, 1, valve body, 11, water inlet, 12, water passage, 13, first water outlet, 14, second water outlet, 15, first valve chamber, 151, first water flow chamber, 152, first back pressure chamber, 1521, first water path, 1522, second water path, 153, first connecting port, 16, second valve chamber, 161, second water flow chamber, 162, second back pressure chamber, 163, second connecting port, 164, third connecting port, 17, water replenishment port, 18, opening, 19, water passage hole, 2, valve cover, 21, first pressure relief hole, 22, first pressure relief chamber, 23, inclined water channel, 24, second pressure relief hole, 25, second pressure relief chamber, 26, pressure relief port, 3, first diaphragm assembly, 31, water inlet diaphragm, 32, The first support plate, 33, the first spring, 4, the first control component, 41, the shell, 42, the guide rod, 43, the sealing pad, 44, the piston head, 45, the return spring, 46, the gasket, 47, the first sealing ring, 48, the second sealing ring, 49, the first rocker arm, 5, the second diaphragm assembly, 51, the switching diaphragm, 52, the second support plate, 53, the sliding rod, 54, the sealing pad, 6, the second control component, 69, the second rocker arm, 7, the driving module, 71, the stepping motor, 72, the switching rotor, 721, the first driving part, 722, the second driving part, 723, the operating part, 73, the motor shield, 74, the waterproof ring, 8, the water-proof cover, 9, the anti-siphon float, 10, the upper end cover, 101, the atmospheric port. DETAILED DESCRIPTION

[0038] In the present invention, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance.

[0039] In addition, in the description of the present invention, unless otherwise specified, "at least one" means one or more, and "plurality" means two or more. In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] See also Figure 1-Figure 13 As shown, an integrated flushing valve of the utility model includes a valve body assembly, a first switching mechanism and a second switching mechanism. The valve body assembly includes a valve body 1 integrally injection-molded and a valve cover 2 integrally injection-molded. The valve body 1 is provided with a water inlet 11, a water passage 12, a first water outlet 13 and a second water outlet 14. The valve cover 2 is connected to the valve body 1, and a first valve cavity 15 and a second valve cavity 16 are enclosed therebetween. The first valve cavity 15 is located between the water inlet 11 and the water inlet end of the water passage 12, and the second valve cavity 16 is located between the water outlet end of the water passage 12 and the first water outlet 13 and the second water outlet 14. The first switching mechanism partially enters the first valve cavity 15 and controls whether the water inlet 11 is connected to the water inlet end of the water passage 12, and the second switching mechanism partially enters the second valve cavity 16 and controls whether the water outlet end of the water passage 12 is connected to the first water outlet 13 or the second water outlet 14. In other embodiments, there are multiple valve covers, and the first valve cavity and the second valve cavity are surrounded by different valve covers and valve bodies.

[0041] The first switching mechanism includes a first switching component and a first control component 4 for linking the action of the first switching component. The first switching component is arranged in the first valve cavity 15 to control whether the water inlet 11 is connected to the water inlet end of the water passage 12. The second switching mechanism includes a second switching component and a second control component 6 for linking the action of the second switching component. The second switching component is arranged in the second valve cavity 16 to control whether the water outlet end of the water passage 12 is connected to the first water outlet 13 or the second water outlet 14. The first control component 4 and the second control component 6 are independent components and are respectively installed on the valve cover 2. The valve cover 2 is specifically fixed to the valve body 1 by a plurality of screws, but the connection method between the two is not limited to this.

[0042] The utility model further comprises a driving module 7, which is mounted on the valve cover 2 and is located between the first control component 4 and the second control component 6, and the driving module 7 controls whether the first control component 4 and the second control component 6 are in motion. Figure 7 , Figure 8As shown, the driving module 7 includes a stepper motor 71 and a switching rotor 72. The stepper motor 71 is installed on the valve cover 2. Specifically, the valve cover 2 is provided with a mounting cavity for the stepper motor 71. The stepper motor 71 is installed in the mounting cavity of the valve cover 2 by using a motor shield 73 and a waterproof ring 74. The switching rotor 72 is installed on the output shaft of the stepper motor 71, and the switching rotor 72 is provided with a first driving part 721 and a second driving part 722. The switching rotor 72 has a first working state in which the first control component 4 is pushed by the first driving part 721 and a second working state in which the first control component 4 is pushed by the first driving part 721 and the second control component 6 is pushed by the second driving part 722. The first driving part 721 and the second driving part 722 are provided at the same end edge of the switching rotor 72 and are distributed along the circumference of the switching rotor 72. The circumferential dimension of the first driving part 721 is greater than the circumferential dimension of the second driving part 722. Specifically, the first driving part 721 is arc-shaped and the second driving part 722 is block-shaped. The switching rotor 72 is also provided with an operating portion 723 suitable for manually rotating the switching rotor 72 .

[0043] In the present embodiment, the first switching component is the first diaphragm assembly 3, which divides the first valve chamber 15 into a first water flow chamber 151 and a first back pressure chamber 152. The first water flow chamber 151 is connected to the water inlet 11, and the first water flow chamber 151 is connected to the first back pressure chamber 152 through a first small hole provided on the first diaphragm assembly 3; the first back pressure chamber 152 is provided with a first pressure relief hole 21, and the first control component 4 controls whether the first pressure relief hole 21 is opened or not, so that the first diaphragm assembly 3 controls whether the first water flow chamber 151 is connected to the water inlet end of the water passage 12 according to the water pressure change of the first back pressure chamber 152. Specifically, a first connecting port 153 is provided between the first water flow chamber 151 and the water inlet end of the water passage 12, and the first diaphragm assembly 3 controls whether the first connecting port 153 is opened or not. Figure 4 , Fig. 9 As shown, the first diaphragm assembly 3 includes a water inlet diaphragm 31, a first support plate 32 and a first spring 33. The water inlet diaphragm 31 is mounted on the first support plate 32, and the edges of the water inlet diaphragm 31 are pressed against the valve body 1 by the valve cover 2. The first support plate 32 is provided with a first small hole. The first spring 33 is located in the first back pressure cavity 152 and presses against the first support plate 32 along the arrangement direction of the first back pressure cavity 152 and the first water flow cavity 151. One end of the first spring 33 passes through the first small hole to prevent the first small hole from being blocked.

[0044] In this embodiment, the valve cover 2 is provided with a first pressure relief chamber 22 communicating with the first pressure relief hole 21, and the first control component 4 is installed in the first pressure relief chamber 22. Figure 5As shown, the first control component 4 includes a housing 41, a guide rod 42, a gasket 46, a first sealing ring 47, a second sealing ring 48, a return spring 45, a piston head 44 and a sealing rubber pad 43. The housing 41 is installed in the first pressure relief chamber 22 of the valve cover 2, and the first sealing ring 47 is matched between the two. The guide rod 42 is inserted into the housing 41, and the second sealing ring 48 is matched between the two. One end of the guide rod 42 located in the housing 41 is press-fitted with the piston head 44 by interference, and the sealing rubber pad 43 is sleeved on the piston head 44, and opens and closes the first pressure relief hole 21 with the axial movement of the piston head 44. The return spring 45 is sleeved outside the guide rod 42 and is stretched between the piston head 44 and the gasket 46 sleeved on the guide rod 42. One end of the guide rod 42 located outside the housing 41 is movably connected with a first swing rod 49, which is roughly L-shaped and is used to receive the push of the above-mentioned first driving part 721.

[0045] The first pressure relief chamber 22 is connected to the water passage 12 through a linear pressure relief waterway. Fig. 9 As shown, the pressure relief water channel includes an inclined water channel 23 provided on the valve cover 2 and a water through hole 19 provided on the valve body 1 and connected to the water through channel 12. One end of the inclined water channel 23 leads to the first pressure relief chamber 22, and the other end of the inclined water channel 23 is connected to the through water hole 19. In this way, the utility model can reduce the use of two steel balls and two steel ball pressing processes, which is beneficial to reduce the assembly cost, improve the reliability of the valve body assembly, and make the overall structure more compact. This is because the pressure relief water channel of the prior art includes an L-shaped water channel respectively provided on the valve cover and the valve body, the L-shaped water channel on the valve cover is connected to the first pressure relief chamber, and the L-shaped water channel on the valve body is connected to the through water channel, and the two L-shaped water channels are connected to each other. Since the two sides of each L-shaped water channel are formed by core pulling during the injection molding process, it is necessary to block the port on one side with a steel ball. The utility model adopts an inclined water channel 23 and a water hole 19 to replace the two L-shaped water channels in the prior art, which not only does not affect the core pulling operation during injection molding, but also has no redundant ports and does not need to be blocked by steel balls, thereby reducing the use of two steel balls and reducing two steel ball pressing processes.

[0046] like Figure 4 , Fig. 9As shown, the first pressure relief hole 21 is located on the side of the first back pressure chamber 152. The utility model also includes a water-blocking cover 8, which is located in the first back pressure chamber 152 and extends upward. The water-blocking cover 8 divides the first back pressure chamber 152 into a first waterway 1521 and a second waterway 1522. The first waterway 1521 and the second waterway 1522 are connected through the water gap between the upper end of the water-blocking cover 8 and the valve cover 2, and the second waterway 1522 is connected to the first pressure relief hole 21. When the pressure is released, the water in the first back pressure chamber 152 goes up along the first waterway 1521, turns downward into the second waterway 1522 at the upper end of the water-blocking cover 8 through the water gap between it and the valve cover 2, and flows to the first pressure relief hole 21 along the second waterway 1522. In this way, when the first pressure relief hole 21 is opened, the air at the top of the first back pressure chamber 152 can be discharged, so that the first diaphragm assembly 3 is more stable when opened and closed, and abnormal noise is avoided. Specifically, the isolation cover 8 is screwed to the valve cover 2.

[0047] In the present embodiment, the second switching component is a second diaphragm assembly 5, which divides the second valve chamber 16 into a second water flow chamber 161 and a second back pressure chamber 162. The second water flow chamber 161 is connected to the water channel 12, and the second water flow chamber 161 is connected to the second back pressure chamber 162 through a second small hole provided on the second diaphragm assembly 5. The second back pressure chamber 162 is provided with a second pressure relief hole 24. The second control component 6 controls whether the second pressure relief hole 24 is opened or not, so that the second diaphragm assembly 5 controls the second water flow chamber 161 to be connected to the first water outlet 13 or the second water outlet 14 according to the water pressure change of the second back pressure chamber 162; the valve cover 2 is provided with a second pressure relief chamber 25 connected to the second pressure relief hole 24, the second control component 6 is installed in the second pressure relief chamber 25, and the valve cover 2 is also provided with a pressure relief port 26 (such as Figure 8 As shown in Figure 6 , Fig.12As shown, the second diaphragm assembly 5 includes a switching diaphragm 51, a second supporting plate 52, a sliding rod 53, a sealing gasket 54 and a second spring 55. The switching diaphragm 51 is sleeved on the second supporting plate 52, and the edges of the switching diaphragm 51 are pressed against the valve body 1 by the valve cover 2. The second supporting plate 52 is sleeved on one end of the sliding rod 53, and the sealing gasket 54 is sleeved on the other end of the sliding rod 53. The second supporting plate 52 is provided with a second small hole. The second spring 55 is located in the second back pressure chamber 162 and presses against the second supporting plate 52 along the arrangement direction of the second back pressure chamber 162 and the second water flow chamber 161. One end of the second spring 55 passes through the second small hole to prevent the second small hole from being blocked. A second communication port 163 is provided between the first water flow chamber 151 and the first water outlet 13, a third communication port 164 is provided between the first water flow chamber 151 and the second water outlet 14, the second communication port 163 and the third communication port 164 are coaxially arranged, the sliding rod 53 is passed through the second communication port 163 and the third communication port 164, the sealing gasket 54 controls whether the second communication port 163 is opened or not, and the switching diaphragm 51 controls whether the third communication port 164 is opened or not. The structure of the second control component 6 is consistent or substantially consistent with that of the first control component 4, and will not be described here. The second swing rod 69 of the second control component 6 is roughly L-shaped, and is used to receive the push of the above-mentioned second drive part 722.

[0048] In this embodiment, the second valve chamber 16 is provided with an air port 101 leading upward to the outside, and an anti-siphon float 9 is provided between the air port 101 and the water outlet end of the water passage 12. When the water outlet end of the water passage 12 discharges water, the anti-siphon float 9 is pushed upward by the water flow and closes the air port 101. When the water outlet end of the water passage 12 stops discharging water, the anti-siphon float 9 drops and opens the air port 101, thereby preventing siphoning from occurring inside the valve body 1 due to negative pressure. Specifically, as Figure 3 As shown, the top of the valve body 1 is provided with an opening 18 leading to the second water flow chamber 161 of the second valve chamber 16, and the opening 18 is connected to the upper end cover 10, and the air port 101 is provided on the upper end cover 10. The valve body 1 is also provided with a water replenishment port 17 for replenishing water to the water tank, and the water replenishment port 17 is connected to the water inlet 11.

[0049] The utility model is an integrated flushing valve. When in use, its first water outlet 13 is connected to the brush ring water path of the toilet, and its second water outlet 14 is connected to the spray water path of the toilet. Its working principle is as follows:

[0050] In the standby state, the switching rotor 72 is in the initial position. At this time, the first swing rod 49 of the water inlet part and the second swing rod 69 of the switching part are both under force, and the flushing valve stops water.

[0051] When the stepper motor 71 controls the switching rotor 72 to rotate 30±10°, the first swing rod 49 is pressurized, so that the first control component 4 opens the first pressure relief hole 21, and the water in the first back pressure chamber 152 flows to the water passage 12 through the first pressure relief hole 21, the first pressure relief chamber 22, and the inclined water channel 23 in sequence (the flow path of the pressure relief water is as shown in FIG. Fig. 9 , Fig.10 As shown by the dotted line in the figure, the first diaphragm assembly 3 opens the first communication port 153, and the normal pressure water flows to the water inlet channel through the water inlet 11, the first water flow cavity 151, and the first communication port 153, and flows to the first water outlet 13 through the second water flow cavity 161 and the opened second communication port 163, and finally flows out from the first water outlet 13, as shown in FIG. Fig.12 As shown, it is convenient to flush the toilet with the brush ring.

[0052] When the stepper motor 71 controls the switching rotor 72 to rotate 60±10°, the first swing rod 49 and the second swing rod 69 are both pressurized, the first diaphragm assembly 3 opens the first communication port 153, the switching diaphragm 51 opens the third communication port 164, and the sealing gasket 54 closes the second communication port 163, so that the inlet water flows out from the second water outlet 14. Fig.13 As shown, so as to facilitate jet flushing of the toilet.

[0053] The utility model is an integrated flushing valve, which uses a valve body 1 and at least one valve cover 2 to form a valve body assembly as a basic structure, which can reduce the assembly errors between various parts, improve the reliability and consistency of the valve body assembly, and reduce the assembly process to improve the assembly efficiency. In particular, the first control component 4, the second control component 6 and the drive module 7 are respectively installed on the same valve cover 2, which can ensure the assembly consistency and operation reliability of the drive module 7, the first control component 4, and the second control component 6. The first control component 4 and the second control component 6 are separately independent components and then installed on the valve cover 2, which can simplify the assembly and facilitate after-sales maintenance and replacement.

[0054] The utility model provides a toilet flushing system, comprising the integrated flushing valve of the utility model, wherein the water inlet 11 is connected to a normal pressure water source, the first water outlet 13 is connected to a wash ring water path of a toilet body, and the second water outlet 14 is connected to a jet water path of the toilet.

[0055] The utility model also includes a water tank and a water pump, wherein the water inlet of the water pump is connected to the water tank, and the water outlet of the water pump is connected to the jet water path of the toilet. Specifically, the jet water path of the toilet includes a jet nozzle having two jet channels, wherein one jet channel is connected to the second water outlet 14, and the other jet channel is connected to the water outlet of the water pump.

[0056] The utility model provides a toilet flushing system. When there is electricity, the flushing valve of the utility model is connected to a normal pressure water source (i.e., a municipal tap water source) for water supply of the brush ring water path of the toilet, and the jet water path of the toilet is supplied with water by a water pump. When the water pump cannot work normally due to power failure or other factors, the flushing valve of the utility model is connected to a normal pressure water source for water supply of the brush ring water path and the jet water path of the toilet. Therefore, the flushing valve of the utility model can be applied to both toilets with water tanks and toilets without water tanks.

[0057] In other embodiments, the valve body is also provided with another water inlet connected to the second valve chamber (specifically, the second water flow chamber of the second valve chamber), which can be used to connect the water outlet of the water pump, so that when the water pump discharges water, it can directly supply water to the brush ring water channel and the jet water channel of the toilet in turn through the flushing valve of the utility model.

[0058] The utility model provides an integrated flushing valve and a toilet flushing system, and the uninvolved parts are the same as the prior art or can be implemented by using the prior art.

[0059] The above embodiments are only used to further illustrate an integrated flushing valve and toilet flushing system of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. An integrated flushing valve, comprising a valve body assembly, a first switching mechanism and a second switching mechanism, characterized in that: The valve body assembly includes a valve body and at least one valve cover, the valve body is provided with a water inlet, a water flow channel, a first water outlet and a second water outlet, the valve cover is connected to the valve body, and together with the valve body, forms a first valve cavity between the water inlet and the water inlet end of the water flow channel, and a second valve cavity between the water outlet end of the water flow channel and the first water outlet and the second water outlet, the first switching mechanism partially enters the first valve cavity, and controls whether the water inlet is connected to the water inlet end of the water flow channel, and the second switching mechanism partially enters the second valve cavity, and controls whether the water outlet end of the water flow channel is connected to the first water outlet or the second water outlet.

2. The integrated flushing valve according to claim 1, characterized in that: The first switching mechanism includes a first switching component arranged in the first valve chamber and a first control component for linking the first switching component to move; the second switching mechanism includes a second switching component arranged in the second valve chamber and a second control component for linking the second switching component to move; the first control component and the second control component are independent components and are respectively installed on the valve cover.

3. The integrated flushing valve according to claim 2, characterized in that: It also includes a driving module, which is installed on the valve cover and is located between the first control component and the second control component, and the driving module controls whether the first control component and the second control component are in action; the driving module includes a stepping motor and a switching rotor, the stepping motor is installed on the valve cover, the switching rotor is installed on the output shaft of the stepping motor, and the switching rotor is provided with a first driving part and a second driving part, the switching rotor has a first working state in which the first control component is pushed by the first driving part and a second working state in which the first control component is first pushed by the first driving part and then the second control component is pushed by the second driving part.

4. The integrated flushing valve according to claim 2, characterized in that: The first switching component is a first diaphragm assembly, which divides the first valve chamber into a first water flow chamber and a first back pressure chamber. The first water flow chamber is connected to the water inlet, and the first water flow chamber is connected to the first back pressure chamber through a first small hole provided on the first diaphragm assembly; the first back pressure chamber is provided with a first pressure relief hole, and the first control component controls whether the first pressure relief hole is opened or not, so that the first diaphragm assembly controls whether the first water flow chamber is connected to the water inlet end of the water passage according to the water pressure change in the first back pressure chamber.

5. The integrated flushing valve according to claim 4, characterized in that: The valve cover is provided with a first pressure relief cavity connected to the first pressure relief hole, and the first control component is installed in the first pressure relief cavity; the first pressure relief cavity is connected to the water passage through a linear pressure relief waterway.

6. The integrated flushing valve according to claim 5, characterized in that: The pressure relief water channel includes an inclined water channel arranged on the valve cover and a water through hole arranged on the valve body and connected to the water through channel, one end of the inclined water channel is connected to the first pressure relief chamber, and the other end of the inclined water channel is connected to the water through hole; the first pressure relief hole is located on the side of the first back pressure chamber, and also includes a water-blocking cover, which is located in the first back pressure chamber and extends upward, and the water-blocking cover separates the first back pressure chamber into a first water channel and a second water channel, the first water channel and the second water channel are connected through the water through gap between the upper end of the water-blocking cover and the valve cover, and the second water channel is connected to the first pressure relief hole.

7. The integrated flushing valve according to claim 2, characterized in that: The second switching component is a second diaphragm assembly, which divides the second valve chamber into a second water flow chamber and a second back pressure chamber. The second water flow chamber is connected to the water outlet end of the water passage, and the second water flow chamber is connected to the second back pressure chamber through a second small hole arranged on the second diaphragm assembly. The second back pressure chamber is provided with a second pressure relief hole. The second control component controls whether the second pressure relief hole is opened or not, so that the second diaphragm assembly controls the second water flow chamber to be connected to the first water outlet or the second water outlet according to the water pressure change in the second back pressure chamber; the valve cover is provided with a second pressure relief chamber connected to the second pressure relief hole, the second control component is installed in the second pressure relief chamber, and the valve cover is also provided with a pressure relief port connected to the second pressure relief chamber.

8. The integrated flushing valve according to claim 1, characterized in that: The second valve cavity is also provided with an atmospheric port leading to the outside, and an anti-siphon float is arranged between the atmospheric port and the water outlet end of the water passage. When water is discharged from the water outlet end of the water passage, the anti-siphon float is pushed upward by the water flow to close the atmospheric port; the valve body is also provided with a water replenishment port for replenishing water to the water tank, and the water replenishment port is connected to the water inlet.

9. The integrated flushing valve according to claim 1, characterized in that: The number of the valve cover is one, or the number of the valve cover is multiple, and the first valve cavity and the second valve cavity are respectively surrounded by different valve covers and the valve body.

10. A toilet flushing system, characterized in that: It comprises an integrated flushing valve as described in any one of claims 1 to 9, the water inlet is connected to a normal pressure water source, the first water outlet is connected to a wash ring water path of a toilet body, and the second water outlet is connected to a jet water path of the toilet.

11. The toilet flushing system according to claim 10, characterized in that: The utility model also comprises a water tank and a water pump, wherein the water inlet end of the water pump is connected to the water tank, and the water outlet end of the water pump is connected to the jet water channel of the toilet.

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