Toilet stool, toilet stool flushing water path and valve

Abstract

The valve comprises a shell, the shell is provided with a communication cavity, a water inlet flow channel, an air supply port, a water outlet flow channel and a pressure relief flow channel, one end of the water inlet flow channel is provided with a water outlet communicated with the communication cavity, the air supply port is communicated with the water inlet flow channel, and the pressure relief flow channel is communicated with the water outlet flow channel. A water inlet communicated with the communicating cavity is formed in one end of the water outlet flow channel, and the two ends of the pressure relief flow channel are communicated with the communicating cavity and the water outlet flow channel respectively; the valve clack is arranged in the communication cavity, is arranged among one end, communicated with the communication cavity, of the pressure relief flow channel, the water inlet and the water outlet in a separating manner, and is provided with a water passing through hole aligned with the water outlet; the executing mechanism is arranged on the shell; and the piston is connected to the shell in a sliding manner. When the valve is opened, explosion noise cannot be generated.

Description

Technical Field

[0001] The utility model relates to a sanitary appliance, and more specifically to a toilet, a toilet flushing waterway and a valve. Background Art

[0002] When flushing, existing toilets make popping noises, which leads to poor user experience. Since the anti-siphon air supply port on the toilet valve is connected to the pipeline downstream of the valve, air will enter the pipeline downstream of the valve after the valve is closed. When the valve is opened for flushing next time, the air and water in the pipeline downstream of the valve mix and flow at high speed, thus producing popping noises. Utility Model Content

[0003] The problem to be solved by the utility model is how to reduce the explosion noise when the valve is flushing.

[0004] The utility model embodiment provides a valve, which includes:

[0005] The shell is provided with a connecting cavity, a water inlet channel, an air replenishment port, a water outlet channel and a pressure relief channel, one end of the water inlet channel is provided with a water outlet connected to the connecting cavity, the air replenishment port is connected to the water inlet channel, one end of the water outlet channel is provided with a water inlet connected to the connecting cavity, and both ends of the pressure relief channel are respectively connected to the connecting cavity and the water outlet channel;

[0006] A valve flap is arranged in the communication cavity, and is separated between the end of the pressure relief channel connected to the communication cavity and the water inlet and the water outlet, and is provided with a water through hole aligned with the water outlet;

[0007] an actuator, disposed on the housing; and

[0008] A piston, slidably connected to the housing;

[0009] Among them, the actuator is configured to cut off the pressure relief channel so that the valve flap covers the water inlet, and connect the pressure relief channel so that the valve flap is separated from the water outlet, and the piston is configured to open the air supply port when the pressure in the water inlet channel is negative pressure, and close the air supply port when the pressure in the water inlet channel is positive pressure.

[0010] In an illustrative embodiment, a pressure relief hole connected to the communication chamber is provided at one end of the pressure relief channel, and the actuator includes a slider and a driving mechanism for driving the slider to slide;

[0011] The driving mechanism can drive the slider to slide to a first position for blocking an end of the pressure relief hole facing away from the connecting cavity to cut off the pressure relief flow channel and a second position for separating from the pressure relief hole to connect the pressure relief flow channel.

[0012] In an illustrative embodiment, the driving mechanism includes a coil and a spring disposed on a side of the slider facing away from the pressure relief hole;

[0013] The spring applies an elastic force to the slider close to the pressure relief hole, and the coil is configured to apply a magnetic force greater than the elastic force to the slider when energized, and the magnetic force is opposite to the elastic force.

[0014] In an exemplary embodiment, the spring is disposed in the coil, and the coil is configured to drive the slider to slide into the coil when energized.

[0015] In an illustrative embodiment, a first cylinder is disposed in the water inlet flow channel, and the first cylinder divides the water inlet flow channel into a downstream section close to the communication cavity and an upstream section away from the communication cavity, and the upstream section and the downstream section are respectively connected to two ends of the first cylinder;

[0016] A slideway having one end connected to the downstream section is disposed in the housing, the slideway is coaxially arranged with the first cylinder and spaced apart from the first cylinder, and the air supply port is arranged at one end of the slideway facing away from the first cylinder;

[0017] The piston comprises a body, wherein the body comprises a sealing plate disposed between the first cylinder and the slideway, a second cylinder extending from the sealing plate into the slideway, and a third cylinder extending from the sealing plate into the first cylinder;

[0018] Wherein, an air inlet through hole is arranged on the wall surface of the second cylinder, and a water inlet through hole is arranged on the wall surface of the third cylinder.

[0019] In an exemplary embodiment, the piston further includes a first sealing ring and a second sealing ring; wherein the first sealing ring is sleeved on the second cylinder and abuts against the sealing plate, and the second sealing ring is sleeved on the third cylinder and abuts against the sealing plate.

[0020] In an illustrative embodiment, the valve flap comprises an elastic membrane having an edge connected to a wall surface of the communication cavity;

[0021] The elastic diaphragm covers the water inlet when the pressure relief channel is cut off, and is separated from the water inlet when the pressure relief channel is connected.

[0022] In an illustrative embodiment, the valve flap further includes a support member, and the support member includes a support plate, and the support plate is attached to a surface of the middle portion of the elastic diaphragm facing away from the water inlet.

[0023] In an illustrative embodiment, the elastic diaphragm is provided with a plurality of mounting holes;

[0024] The support member further includes a plurality of connection buckles which are all arranged on a side of the support plate close to the elastic diaphragm, and the plurality of connection buckles pass through the mounting holes to hook the elastic diaphragm;

[0025] The water through hole passes through the support plate and the connecting buckle in sequence.

[0026] In an illustrative embodiment, the housing includes a valve cover on the valve body, the water inlet flow channel and the water outlet flow channel are both arranged in the valve body, the pressure relief flow channel is arranged in the valve cover, and the actuator is arranged on the valve cover;

[0027] The edge of the elastic diaphragm is sandwiched between the valve cover and the valve body, and the valve cover and the valve body enclose the communicating cavity.

[0028] In an illustrative embodiment, the elastic diaphragm is configured in a disc shape;

[0029] The water inlet is configured as a circular opening coaxial with the elastic diaphragm and the valve body, and the water outlet is configured as an annular opening surrounding the water inlet.

[0030] The present application also proposes a toilet flushing water circuit, which comprises: the valve, the water inlet pipe group and the water outlet pipe group as described above;

[0031] The shell is provided with a water inlet joint connected to the water inlet flow channel and a water outlet joint connected to the water outlet flow channel;

[0032] One end of the water inlet pipe group is connected to the water inlet joint, and one end of the water outlet pipe group is connected to the water outlet joint.

[0033] The present application also proposes a toilet, which comprises the toilet flushing water circuit as described above.

[0034] In this way, the actuator can control the pressure difference on the two opposite sides of the valve disc by cutting off and connecting the pressure relief flow channel, so that the water inlet flow channel and the water outlet flow channel can be directly cut off and connected.

[0035] Before using the valve, first connect the outlet flow channel of the valve with the outlet pipe assembly. When the inlet flow channel is connected with the outlet flow channel, water can flow through the inlet flow channel, the connecting cavity, and the outlet flow channel in sequence and enter the outlet pipe assembly downstream of the outlet flow channel, and the water fills the outlet flow channel and the outlet pipe assembly. After the valve disc covers the water inlet of the outlet flow channel so that the inlet flow channel and the outlet flow channel are cut off, due to the effect of the external atmospheric pressure, the water in the outlet flow channel and the outlet pipe assembly no longer flows, and the outlet flow channel and the outlet pipe assembly are in a state of being filled with water. When using water next time, after the inlet flow channel is connected with the outlet flow channel, the water filled with the outlet flow channel and the outlet pipe assembly and the water newly injected into the outlet flow channel from the inlet flow channel can flow out uninterruptedly, and there will be no bursting noise caused by air remaining in the outlet flow channel and the outlet pipe assembly.

[0036] Since the air supply port is only connected to the water inlet channel upstream of the valve disc and the valve disc covers the water inlet of the water outlet channel, the water outlet channel and the water inlet channel are separated. After the air supply port is opened, the air input through the air supply port will not enter the water outlet channel. At this time, the water outlet channel and the water outlet pipe group still remain full of water, and no bursting noise will be generated when the valve is opened next time.

[0037] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0039] Figure 1 A schematic diagram of a toilet flushing water circuit in an embodiment of the utility model;

[0040] Figure 2 This is a disassembled schematic diagram of a toilet flushing water circuit in an embodiment of the utility model;

[0041] Figure 3 It is a cross-sectional schematic diagram of a valve in an embodiment of the utility model;

[0042] Figure 4 A cross-sectional schematic diagram of a valve from another perspective in an embodiment of the utility model (arrows indicate the direction of water flow);

[0043] Figure 5 A cross-sectional schematic diagram of a valve from another perspective in an embodiment of the utility model (arrows indicate the flow direction of airflow);

[0044] Figure 6 It is a cross-sectional schematic diagram of a toilet flushing waterway in an embodiment of the utility model;

[0045] Figure 7 A schematic diagram of a toilet in an embodiment of the utility model;

[0046] Figure 8 This is a disassembly diagram of a toilet in an embodiment of the utility model. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0048] like Figure 1 , 2 As shown, Figure 1 , 2 A toilet flushing water circuit 100 in an embodiment of the present application is shown. The toilet flushing water circuit 100 comprises a valve 1, a water inlet pipe group 2 and a water outlet pipe group 3.

[0049] like Figure 3 , 4 As shown, the valve 1 includes a housing 11, a valve disc 13, a piston 14 and an actuator 12. The housing 11 is provided with a water inlet joint 1111, a water outlet joint 1112 and an air supply port 1123. The housing 11 is also provided with a connecting chamber 110, a water inlet flow channel 1113, a water outlet flow channel 1114 and a pressure relief flow channel 1121. A water outlet 1115 is provided at one end of the water inlet flow channel 1113, and the water outlet 1115 is connected to the connecting chamber 110. The other end of the water inlet flow channel 1113 extends to the water inlet joint 1111 and is connected to the water inlet joint 1111. A water inlet 1116 is provided at one end of the water outlet flow channel 1114, and the water inlet 1116 is connected to the connecting chamber 110. The other end of the water outlet flow channel 1114 extends to the water outlet joint 1112 and is connected to the water outlet joint 1112. A pressure relief hole 1122 is provided at one end of the pressure relief channel 1121, and one end of the pressure relief hole 1122 is connected to the connecting chamber 110. The other end of the pressure relief channel 1121 extends to the water outlet channel 1114 and is connected to the water outlet channel 1114. The air replenishment port 1123 is provided on the housing 11, and one end of the air replenishment port 1123 is connected to the water inlet channel 1113, and the other end of the air replenishment port 1123 is connected to the atmosphere outside the housing.

[0050] The water inlet joint 1111 is connected to the water inlet pipe group 2, and the water inlet pipe group 2 is used to inject water into the water inlet joint 1111. The water outlet joint 1112 is connected to the water outlet pipe group 3, and the water outlet pipe group 3 is used to transport the water discharged by the water outlet joint 1112. Figure 6 As shown, the water flow input by the water inlet pipe group 2 can flow through the water inlet joint 1111, the water inlet channel 1113, the connecting cavity 110, the water outlet channel 1114, the water outlet joint 1112, the water outlet pipe group 3 in sequence, and be discharged from the water outlet pipe group 3.

[0051] The valve flap 13 is arranged in the connecting cavity 110. The pressure relief hole 1122 is arranged on one side of the valve flap 13, and the water inlet 1116 of the outlet flow channel 1114 and the water outlet 1115 of the water inlet flow channel 1113 are both arranged on the other side of the valve flap 13. The valve flap 13 is separated between the pressure relief hole 1122 and the water inlet 1116 and the water outlet 1115. The valve flap 13 can move toward the water inlet 1116 and away from the water inlet 1116. A water through hole 1310 is arranged on the valve flap 13. The water through hole 1310 vertically penetrates the valve flap 13. The water through hole 1310 is arranged to be aligned with the water outlet 1115, and the water through hole 1310 can be connected with the water outlet 1115 when the valve flap 13 covers the water inlet 1116.

[0052] The actuator 12 is disposed on the housing 11. The actuator 12 is configured to be able to cut off and connect the pressure relief channel 1121. When the actuator 12 cuts off the pressure relief channel 1121, since the water through hole 1310 is connected to the water outlet 1115 of the water inlet channel 1113 and the side of the valve flap 13 facing the pressure relief hole 1122, the water pressure on the side of the valve flap 13 facing the pressure relief hole 1122 is greater than the water pressure on the side of the valve flap 13 facing the water inlet 1116. The valve flap 13 is driven by the water pressure to move toward the water inlet 1116 so that the valve flap 13 covers the water inlet 1116, thereby cutting off the water inlet channel 1113 and the water outlet channel 1114. When the actuator 12 is connected to the pressure relief channel 1121, the water pressure on the valve flap 13 toward the pressure relief hole 1122 is less than the water pressure on the valve flap 13 toward the water inlet 1116. The valve flap 13 is driven by the water pressure to move away from the water inlet 1116 so that the valve flap 13 leaves the water inlet 1116, thereby connecting the water inlet channel 1113 to the water outlet channel 1114.

[0053] The piston 14 is disposed in the housing and is slidably connected to the housing. The piston 14 is disposed near the air supply port 1123. When the pressure in the water inlet channel 1113 is negative pressure, the piston 14 opens the air supply port 1123, and outside air can enter the water inlet channel 1113 from the air supply port 1123. When the pressure in the water inlet channel 1113 is positive pressure, the piston 14 closes the air supply port 1123, thereby preventing the water in the water inlet channel 1113 from flowing out from the air supply port 1123, causing the valve to leak.

[0054] In this way, the actuator 12 can control the pressure difference on the two sides of the valve disc 13 by cutting off and connecting the pressure relief channel 1121, so that the water inlet channel 1113 and the water outlet channel 1114 can be directly cut off and connected. When the water inlet channel 1113 and the water outlet channel 1114 are connected, water can flow through the water inlet channel 1113, the connecting cavity 110, the water outlet channel 1114 and the water outlet pipe group 3 in sequence, and the water fills the water outlet channel 1114 and the water outlet pipe group 3. After the valve disc 13 covers the water inlet 1116 of the water outlet channel 1114 so that the water inlet channel 1113 and the water outlet channel 1114 are cut off, due to the effect of the external atmospheric pressure, the water in the water outlet channel 1114 and the water outlet pipe group 3 no longer flows, and the water outlet channel 1114 and the water outlet pipe group 3 are in a state of being filled with water. When water is used next time, after the water inlet channel 1113 is connected to the water outlet channel 1114, the water filled with the water outlet channel 1114 and the water outlet pipe group 3 and the water newly injected into the water outlet channel 1114 from the water inlet channel 1113 can flow out uninterruptedly, and there will be no bursting noise caused by air remaining in the water outlet channel 1114 and the water outlet pipe group 3.

[0055] When the water pressure in the water inlet channel 1113 is abnormally negative, for example, when the water supply is cut off, negative pressure is generated in the pipe upstream of the valve, which can cause the water inlet channel 1113 to be under negative pressure, or when the water supply pipe is broken, which can cause the water inlet channel 1113 to be under negative pressure, the piston 14 can open the air supply port 1123 at this time, and the air supply port 1123 fills air into the water inlet channel 1113, thereby preventing the sewage in the toilet from being sucked back into the water inlet channel 1113 through the outlet channel 1114, causing the water channel to be polluted. At the same time, since the air supply port 1123 is only connected to the water inlet channel 1113 upstream of the valve disc, and since the valve disc covers the water inlet of the water outlet channel 1114, the water outlet channel 1114 and the water inlet channel 1113 are separated. After the air supply port 1123 is opened, the air input by the air supply port 1123 will not enter the water outlet channel 1114. At this time, the water outlet channel 1114 and the water outlet pipe group still remain filled with water, and no bursting noise will be generated when the valve is opened next time.

[0056] Therefore, a toilet bowl equipped with such a valve 1 will not generate noise when flushing, and the user experience is good.

[0057] In an illustrative embodiment, the actuator 12 includes a slider 121 and a driving mechanism 122. The slider 121 is disposed on the side of the pressure relief hole 1122 facing away from the connecting chamber 110, and the end of the pressure relief hole 1122 facing away from the connecting chamber 110 faces the slider 121. When the slider 121 moves to a first position where it abuts against the end of the pressure relief hole 1122 facing away from the connecting chamber 110, the slider 121 blocks the pressure relief hole 1122 and cuts off the pressure relief channel 1121. When the slider 121 moves to a second position where it is separated from the end of the pressure relief hole 1122 facing away from the connecting chamber 110, the slider 121 moves away from the end of the pressure relief hole 1122 and connects the pressure relief channel 1121.

[0058] The driving mechanism 122 can drive the slider 121 to slide back and forth between the first position and the second position. The driving mechanism 122 can be a linear motor, a hydraulic cylinder or a pneumatic cylinder.

[0059] In this way, the driving mechanism 122 can control the connection between the water outlet channel 1114 and the water inlet channel 1113 by driving the slider 121 to slide between the first position and the second position. This actuator 12 has a simple structure and high reliability.

[0060] In an illustrative embodiment, the driving mechanism 122 includes a housing 1223, a coil 1222 and a spring 1221. The housing 1223 is provided with an inlet and an outlet. The housing 1223 is connected to the housing 11, and the inlet and outlet on the housing 1223 face the pressure relief hole 1122. The coil 1222 and the spring 1221 are both arranged in the housing 1223. The slider 121 extends into the pressure relief flow channel 1121 from the inlet and outlet of the housing 1223. The spring 1221 is arranged on the side of the slider 121 facing away from the pressure relief hole 1122, and the slider 121 is located between the pressure relief hole 1122 and the spring 1221. The spring 1221 is in a compressed state, and one end of the spring 1221 abuts against the slider 121. The spring 1221 applies an elastic force to the slider 121 close to the pressure relief hole 1122. Under the action of the elastic force, the slider 121 moves toward the pressure relief hole 1122 and blocks the end of the pressure relief hole 1122 facing away from the connecting cavity 110.

[0061] The slider 121 may be a magnet or a soft magnet. When powered on, the coil 1222 acts as an electromagnet to apply a magnetic force to the slider 121, and the magnetic force may be a magnetic attraction force. The direction of the magnetic force applied by the coil 1222 to the slider 121 is opposite to the direction of the elastic force applied by the spring 1221 to the slider 121, and the magnetic force applied by the coil 1222 to the slider 121 is greater than the elastic force applied by the spring 1221 to the slider 121.

[0062] In this way, when the coil 1222 is powered off, only the spring 1221 applies elastic force to the slider 121, so that the slider 121 slides to the first position to block the pressure relief hole 1122; when the coil 1222 is powered on, the magnetic force applied by the coil 1222 on the slider 121 is greater than the elastic force applied by the spring 1221 on the slider 121, so that the slider 121 slides in the direction away from the pressure relief hole 1122 to the second position separated from the pressure relief hole 1122.

[0063] In an illustrative embodiment, the coil 1222 is a hollow structure with a flow channel in the middle, and the flow channel of the coil 1222 is coaxially arranged with the pressure relief hole 1122. The spring 1221 is arranged in the flow channel of the coil 1222. The coil 1222 is configured to drive the slider 121 to slide into the flow channel of the coil 1222 when energized.

[0064] Thus, when the coil 1222 is powered on, the slider 121 is subjected to the magnetic force to slide into the coil 1222, and when the coil 1222 is powered off, the slider 121 slides out of the coil 1222 under the action of the elastic force, and the flow channel in the coil 1222 serves as a slideway. At the same time, the spring 1221 is arranged in the coil 1222, and the structure of the actuator 12 is more compact.

[0065] In an illustrative embodiment, a first cylinder 1125 is provided in the water inlet channel 1113. The first cylinder 1125 is configured as a cylinder. The first cylinder 1125 divides the water inlet channel 1113 into a downstream section 11132 and an upstream section 11131. The downstream section 11132 is close to the connecting cavity 110, and the upstream section 11131 is far away from the connecting cavity 110. One end of the downstream section 11132 is connected to the connecting cavity 110, and the other end of the downstream section 11132 is connected to one end of the first cylinder 1125. The other end of the first cylinder 1125 is connected to the upstream section 11131. The water outlet is provided at one end of the downstream section 11132 facing away from the connecting cavity 110.

[0066] A slide 1124 is also provided in the housing 11. The slide 1124 is provided on the wall surface of the downstream section 11132. One end of the slide 1124 is connected to the downstream section 11132. The slide 1124 can be constructed as a cylindrical cavity. The slide 1124 is coaxially provided with the first cylinder 1125. The slide 1124 and the first cylinder 1125 are spaced apart, that is, there is a distance between the slide 1124 and the first cylinder 1125. One end of the slide 1124 connected to the downstream section 11132 faces one end of the first cylinder 1125 connected to the downstream section 11132. The air supply port 1123 is provided on the wall surface of the slide 1124, and the air supply port 1123 is located at one end of the slide 1124 facing away from the first cylinder 1125.

[0067] The piston 14 includes a body 141. The body 141 includes a sealing plate 1411, a second cylinder 1412 and a third cylinder 1413. The sealing plate 1411 is constructed as a plate-like structure and can be constructed as a flat plate. The second cylinder 1412 and the third cylinder 1413 are both constructed as cylindrical. The sealing plate 1411 is arranged between the first cylinder 1125 and the slideway 1124. The sealing plate 1411 is perpendicular to the axial direction of the first cylinder 1125. The second cylinder 1412 and the third cylinder 1413 are respectively arranged on two plate surfaces of the sealing plate 1411. The second cylinder 1412 and the third cylinder 1413 are coaxially arranged. The axes of the second cylinder 1412 and the third cylinder 1413 are both perpendicular to the sealing plate 1411. The sealing plate 1411 seals one end of the second cylinder 1412 and the third cylinder 1413 that are close to each other. The second cylinder 1412 extends from the sealing plate 1411 into the slideway 1124. The second cylinder 1412 and the slideway 1124 are in clearance fit. The third cylinder 1413 extends from the sealing plate 1411 into the first cylinder 1125. The third cylinder 1413 and the first cylinder 1125 are in clearance fit. The second cylinder 1412 can slide along the slideway 1124, and the third cylinder 1413 can slide along the first cylinder 1125. An air intake hole 1414 is also provided on the wall of the second cylinder 1412. The air intake hole 1414 passes through the second cylinder 1412. The air intake hole 1414 can be provided at one end of the second cylinder 1412 close to the sealing plate 1411. A water intake hole 1415 is also provided on the wall of the third cylinder 1413. The water intake hole 1415 passes through the wall of the third cylinder 1413. The water inlet hole 1415 may be disposed at one end of the third cylinder 1413 close to the sealing plate 1411 .

[0068] In this way, the second cylinder 1412 is connected to the air supply port 1123 through the slide 1124 , and the third cylinder 1413 is connected to the water inlet channel 1113 through the first cylinder 1125 . When the water pressure in the water inlet channel 1113 is negative pressure, the water pressure in the third cylinder 1413 is less than the air pressure in the second cylinder 1412, and the piston 14 moves toward the first cylinder 1125 so that the air inlet hole 1414 on the second cylinder 1412 moves to the outside of the slide 1124 and connects with the water inlet channel 1113, and the air replenishing port 1123 is opened, and air enters the slide 1124 from the air replenishing port 1123, and flows through the slide 1124 and the air inlet hole 1414 in turn into the water inlet channel 1113, so that the air replenishing port 1123 transports gas to the water inlet channel 1113 to prevent siphoning of sewage. At this time, the water inlet hole 1415 on the third cylinder 1413 moves to the first cylinder 1125, which can slow down the suction force of the siphon and reduce the air replenishing speed. When the water pressure in the water inlet channel 1113 is positive, the water pressure in the third cylinder 1413 is greater than the air pressure in the second cylinder 1412, and the piston 14 moves toward the air supply port 1123 so that the sealing plate 1411 covers the end of the slide 1124 close to the first cylinder 1125, and the air inlet hole 1414 on the second cylinder 1412 moves into the slide groove, and the piston 14 cuts off the passage between the slide groove and the water inlet channel 1113, and the air supply port 1123 is closed, and the water in the water inlet channel 1113 will not flow out from the air supply port 1123. At the same time, the water inlet hole 1415 on the third cylinder 1413 moves to the outside of the first cylinder 1125, and the water inlet hole 1415 connects the third cylinder 1413 with the downstream section 11132 of the water inlet channel 1113. The water flow in the upstream section 11131 of the water inlet channel 1113 can flow through the first cylinder 1125, the third cylinder 1413, and the water inlet hole 1415 in sequence and flow into the downstream section 11132.

[0069] In an illustrative embodiment, the piston 14 further includes a first sealing ring 142 and a second sealing ring 143. The first sealing ring 142 and the second sealing ring 143 may be rubber rings. The first sealing ring 142 and the second sealing ring 143 may be annular. The first sealing ring 142 is sleeved on the second cylinder 1412 and abuts against the sealing plate 1411. The second sealing ring 143 is sleeved on the second cylinder 1412 and abuts against the sealing plate 1411.

[0070] When the water pressure in the water inlet channel 1113 is positive, the first sealing ring 142 is sandwiched between one end of the slideway 1124 and the sealing plate 1411, which can improve the sealing performance between the sealing plate 1411 and the slideway 1124 and further prevent water leakage. When the water pressure in the water inlet channel 1113 is negative, the second sealing ring 143 is sandwiched between one end of the first cylinder 1125 and the sealing plate 1411, which can improve the sealing performance between the sealing plate 1411 and the first cylinder 1125 and further reduce the suction force of the siphon.

[0071] In an illustrative embodiment, the valve flap 13 includes an elastic diaphragm 131. The elastic diaphragm 131 can be made of rubber. The edge of the elastic diaphragm 131 is connected to the wall of the connecting chamber 110. The elastic diaphragm 131 divides the connecting chamber 110 into two parts. When the pressure relief channel 1121 is cut off, the elastic diaphragm 131 covers the water inlet 1116 of the outlet channel 1114 under the action of water pressure, and the elastic diaphragm 131 seals the water inlet 1116. When the pressure relief channel 1121 is connected, the elastic diaphragm 131 is separated from the water inlet 1116 under the action of water pressure, and the water inlet 1116 is connected to the water outlet 1115.

[0072] The elastic diaphragm 131 has excellent sealing performance, and the elastic diaphragm 131 has a very good sealing effect on the water inlet 1116.

[0073] In an illustrative embodiment, the valve flap 13 further includes a support member 132. The support member 132 is a rigid element. The support member 132 includes a support plate. The support plate can be configured as a flat plate. The support plate is attached to the surface of the middle part of the elastic diaphragm 131 that faces away from the water inlet 1116.

[0074] The support plate of the support member 132 can fix the shape of the middle part of the elastic diaphragm 131, so that the middle part of the elastic diaphragm 131 remains flat. In this way, after the middle part of the elastic diaphragm 131 covers the water inlet 1116, the water inlet 1116 can be tightly sealed.

[0075] In an exemplary embodiment, the elastic membrane 131 is provided with a plurality of mounting holes 1311. The mounting holes 1311 are through holes that vertically penetrate the elastic membrane 131.

[0076] The support member 132 further includes a plurality of connection buckles 1322. The number of the connection buckles 1322 is the same as the number of the mounting holes 1311, and the connection buckles 1322 are arranged in a one-to-one correspondence with the mounting holes 1311. Each connection buckle 1322 is inserted into a corresponding mounting hole 1311. The connection buckle 1322 can hook the edge of the mounting hole 1311. The plurality of connection buckles 1322 hook different parts of the elastic diaphragm 131, so that the support plate is fixed on the elastic diaphragm 131. The water through hole 1310 sequentially penetrates the support plate 132 and a connection buckle 1322.

[0077] The support member 132 and the elastic membrane 131 are connected by a connecting buckle 1322 . The connection between the support member 132 and the elastic membrane 131 is very firm and is not easy to fall off after long-term use.

[0078] In an illustrative embodiment, the housing 11 includes a valve body 111 and a valve cover 112. The valve body 111 is the main structure of the housing 11. The water inlet channel 1113 and the water outlet channel 1114 are both arranged in the valve body 111, and the water inlet joint 1111 and the water outlet joint 1112 are both arranged on the valve body 111. The pressure relief channel 1121 is arranged in the valve cover 112, and the actuator 12 is fixed on the valve cover 112. The valve cover 112 covers the valve body 111. The valve cover 112 and the valve body 111 can be screwed or bolted. The valve cover 112 and the valve body 111 enclose a connecting cavity 110. The edge of the elastic diaphragm 131 is clamped between the valve cover 112 and the valve body 111.

[0079] The edge of the elastic diaphragm 131 is clamped between the valve cover 112 and the valve body 111 , which can not only firmly fix the elastic diaphragm 131 , but also improve the sealing performance between the elastic diaphragm 131 and the wall of the connecting cavity, and can also seal the gap between the valve cover 112 and the valve body 111 .

[0080] In an illustrative embodiment, the elastic diaphragm 131 is configured as a disc. The connecting cavity 110 is configured as a cavity with a circular cross section, and the elastic diaphragm 131 is coaxially arranged with the connecting cavity 110. One end of the outlet flow channel 1114 close to the water inlet 1116 is configured as a cylindrical cavity, and the water inlet 1116 is configured as a circular opening. The water inlet 1116 is coaxially arranged with the elastic diaphragm 131. One end of the water inlet flow channel 1113 close to the water outlet 1115 is configured as an annular flow channel and enclosed around the water outlet flow channel 1114. The water outlet 1115 of the water inlet flow channel 1113 is configured as an annular opening, and the water outlet 1115 surrounds the water inlet 1116 of the water outlet flow channel 1114. The water outlet 1115 is flush with the water inlet 1116.

[0081] In this way, the water outlet 1115 is constructed as an annular opening surrounding the water inlet 1116, and the water pressure exerted by the water in the water outlet 1115 on the elastic diaphragm 131 can be evenly distributed on the outer edge of the elastic diaphragm 131, so that the elastic diaphragm 131 is subjected to more uniform force.

[0082] In an illustrative embodiment, the water inlet pipe assembly 2 includes a water inlet pipe 21, a water inlet nut 22, and a water outlet nut 23. The water inlet pipe assembly 2 can be connected to an angle valve 200 provided on a tap water pipe. The interface of the angle valve 200 is connected to one end of the water inlet pipe 21 through the water inlet nut 22. The other end of the water inlet pipe 21 is fixed to the water inlet joint 1111 of the valve 1 through the water outlet nut 23. After the angle valve 200 is opened, tap water can be transported to the water connection joint of the valve 1 through the water inlet pipe 21.

[0083] In an illustrative embodiment, the toilet flushing water circuit 100 further includes a nozzle 4. The water outlet pipe assembly 3 includes a connecting nut 32, a water outlet pipe 31 and a clamp 33. One end of the water outlet pipe 31 is connected to the water outlet joint 1112 through the connecting nut 32. The other end of the water outlet pipe 31 is connected to the nozzle 4 through the clamp 33. After the valve 1 is opened, the water output from the water outlet joint 1112 is transported to the nozzle 4 through the water outlet pipe 31 and sprayed out from the nozzle 4.

[0084] like Figure 7 , 8 As shown, this embodiment also provides a toilet 10, which includes a ceramic toilet 300 and the above-mentioned toilet 10 flushing waterway 100. The nozzle 4 of the toilet 10 flushing waterway 100 is connected to the ceramic toilet 300. The toilet 10 flushing waterway 100 is used to flush the ceramic toilet 300.

[0085] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the 'present' utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0086] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0087] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be defined by the attached claims.

Claims

1. A valve, characterized in that: include: The shell is provided with a connecting cavity, a water inlet channel, an air replenishment port, a water outlet channel and a pressure relief channel, one end of the water inlet channel is provided with a water outlet connected to the connecting cavity, the air replenishment port is connected to the water inlet channel, one end of the water outlet channel is provided with a water inlet connected to the connecting cavity, and both ends of the pressure relief channel are respectively connected to the connecting cavity and the water outlet channel; A valve flap is arranged in the communication cavity, between one end of the pressure relief channel communicating with the communication cavity and the water inlet and the water outlet, and is provided with a water through hole aligned with the water outlet; An actuator, arranged on the housing; as well as, A piston, slidably connected to the housing; Among them, the actuator is configured to cut off the pressure relief channel so that the valve flap covers the water inlet, and connect the pressure relief channel so that the valve flap is separated from the water outlet, and the piston is configured to open the air supply port when the pressure in the water inlet channel is negative pressure, and close the air supply port when the pressure in the water inlet channel is positive pressure.

2. The valve according to claim 1, characterized in that: A pressure relief hole connected to the communication chamber is provided at one end of the pressure relief channel, and the actuator includes a slider and a driving mechanism for driving the slider to slide; The driving mechanism can drive the slider to slide to a first position for blocking an end of the pressure relief hole facing away from the connecting cavity to cut off the pressure relief flow channel and a second position for separating from the pressure relief hole to connect the pressure relief flow channel.

3. The valve according to claim 2, characterized in that: The driving mechanism includes a coil and a spring arranged on a side of the slider facing away from the pressure relief hole; The spring applies an elastic force to the slider close to the pressure relief hole, and the coil is configured to apply a magnetic force greater than the elastic force to the slider when energized, and the magnetic force is opposite to the elastic force.

4. The valve according to claim 3, characterized in that: The spring is disposed in the coil, and the coil is configured to drive the slider to slide into the coil when energized.

5. The valve according to any one of claims 1 to 4, characterized in that: A first cylinder is arranged in the water inlet flow channel, and the first cylinder divides the water inlet flow channel into a downstream section close to the communication cavity and an upstream section far from the communication cavity, and the upstream section and the downstream section are respectively connected to two ends of the first cylinder; A slideway having one end connected to the downstream section is disposed in the housing, the slideway is coaxially arranged with the first cylinder and spaced apart from the first cylinder, and the air supply port is arranged at one end of the slideway facing away from the first cylinder; The piston comprises a body, wherein the body comprises a sealing plate disposed between the first cylinder and the slideway, a second cylinder extending from the sealing plate into the slideway, and a third cylinder extending from the sealing plate into the first cylinder; Wherein, an air inlet through hole is arranged on the wall surface of the second cylinder, and a water inlet through hole is arranged on the wall surface of the third cylinder.

6. The valve according to claim 5, characterized in that The piston further comprises a first sealing ring and a second sealing ring; wherein the first sealing ring is sleeved on the second cylinder and abuts against the sealing plate, and the second sealing ring is sleeved on the third cylinder and abuts against the sealing plate.

7. The valve according to any one of claims 1 to 4, characterized in that: The valve flap comprises an elastic diaphragm whose edge is connected to the wall surface of the communication cavity; The elastic diaphragm covers the water inlet when the pressure relief channel is cut off, and is separated from the water inlet when the pressure relief channel is connected.

8. The valve according to claim 7, characterized in that The valve flap further comprises a support member, wherein the support member comprises a support plate, and the support plate is attached to a surface of the middle portion of the elastic diaphragm facing away from the water inlet.

9. The valve according to claim 8, characterized in that The elastic diaphragm is provided with a plurality of mounting holes; The support member further includes a plurality of connection buckles which are all arranged on a side of the support plate close to the elastic diaphragm, and the plurality of connection buckles pass through the mounting holes to hook the elastic diaphragm; The water through hole passes through the support plate and the connecting buckle in sequence.

10. The valve according to claim 7, characterized in that The housing comprises a valve cover which is covered by a valve body, the water inlet flow channel and the water outlet flow channel are both arranged in the valve body, the pressure relief flow channel is arranged in the valve cover, and the actuator is arranged on the valve cover; The edge of the elastic diaphragm is sandwiched between the valve cover and the valve body, and the valve cover and the valve body enclose the communicating cavity.

11. The valve according to claim 7, characterized in that The elastic diaphragm is configured in a disc shape; The water inlet is configured as a circular opening coaxial with the elastic diaphragm and the valve body, and the water outlet is configured as an annular opening surrounding the water inlet.

12. A toilet flushing waterway, characterized in that: include: The valve, water inlet pipe assembly and water outlet pipe assembly according to any one of claims 1 to 11; The shell is provided with a water inlet joint connected to the water inlet flow channel and a water outlet joint connected to the water outlet flow channel; One end of the water inlet pipe group is connected to the water inlet joint, and one end of the water outlet pipe group is connected to the water outlet joint.

13. A toilet, characterized in that: It comprises the toilet flushing water circuit as claimed in claim 12.

Images