Reversing valve of toilet and toilet

Abstract

The present application discloses a reversing valve (10) for a toilet, which comprises a reversing valve body (12) and a reversing rotor (14). A reversing chamber (122), a water inlet pipe (124), an upper flushing pipe (126) and a lower flushing pipe (128) which are respectively communicated with the reversing chamber are formed inside the reversing valve body. The reversing rotor is rotatably arranged in the reversing chamber, and the reversing rotor can be switched to an upper flushing position or a lower flushing position to divert the liquid in the water inlet pipe to the upper flushing pipe or the lower flushing pipe. The reversing valve body can also form an exhaust passage (129) communicating the upper flushing pipe and the lower flushing pipe. When the reversing rotor is in the upper flushing position, the gas in the lower flushing pipe will be discharged into the upper flushing pipe through the exhaust passage due to the negative pressure caused by the water flow in the upper flushing pipe. The above structure can reduce the water outlet time of gas-liquid mixture and eliminate the water outlet noise when switching from upper flushing water to lower flushing water. The present application also provides a toilet.

Description

Technical Field

[0001] The present application relates to a reversing valve for controlling the flow direction of a liquid, and more particularly to a reversing valve for a toilet. The present application also relates to a toilet having the above-mentioned reversing valve. Background Art

[0002] In the flushing system of an existing toilet, a water tank is connected to a reversing valve through a water supply pipe, and the reversing valve is respectively connected to an upper flushing pipe and a lower flushing pipe. The reversing valve can switch its own position to connect the water supply pipe to the upper flushing pipe or the lower flushing pipe. The water outlet end of the upper flushing pipe is directly connected to the outside, so as to realize the flushing of the toilet wall. The water outlet end of the lower flushing pipe will directly flush water into the sewer pipe of the toilet, and generally will be liquid-sealed by the stored water in the toilet.

[0003] If the reversing valve uses a seal to seal the lower flushing side by sealing the upper flushing pipe side, or to seal the upper flushing side by sealing the lower flushing pipe side, since the seal cannot be completely sealed after being used for a period of time, and since the water outlet end of the upper flushing pipe is connected to the outside and the water outlet end of the lower flushing pipe is liquid-sealed by the stored water in the toilet, air will enter the lower flushing pipe from the seal leakage position of the seal, and air will remain in the lower flushing pipe. At this time, when the lower flushing action is completed, due to the air remaining in the lower flushing pipe, it will cause a long gas-liquid mixed water outlet stage and will cause harsh water outlet noise.

[0004] Application Content

[0005] In view of the above problems, the present application discloses a reversing valve for a toilet. The above structure no longer requires the reversing rotor to maintain the sealing of the lower flushing pipeline, which can reduce the requirement for the service life of the reversing rotor, and after switching from upper flushing to lower flushing, it can reduce the water outlet time of gas-liquid mixing and significantly eliminate the water outlet noise.

[0006] The present application also discloses a toilet having the above-mentioned reversing valve.

[0007] In order to achieve the above object, the present application adopts the following technical solutions:

[0008] The present application provides a reversing valve for a toilet, which includes a reversing valve body and a reversing rotor. A reversing chamber is formed inside the reversing valve body, and an inlet water pipeline, an upper flushing pipeline, and a lower flushing pipeline that can be respectively connected to the reversing chamber are also formed inside the reversing valve body. The reversing rotor is rotatably arranged in the reversing chamber. The reversing rotor can be switched to an upper flushing position to drain the liquid in the inlet water pipeline to the upper flushing pipeline, and the reversing rotor can also be switched to a lower flushing position to drain the liquid in the inlet water pipeline to the lower flushing pipeline. The reversing valve body can also form an exhaust passage connecting the upper flushing pipeline and the lower flushing pipeline. When the reversing rotor is in the upper flushing position, the gas in the lower flushing pipeline will be discharged into the upper flushing pipeline through the exhaust passage due to the negative pressure caused by the water flow in the upper flushing pipeline.

[0009] After adopting the above structure, there is no longer a requirement for the reversing rotor to maintain the sealing of the lower flushing pipeline, reducing the requirements for the service life of the reversing rotor. During the upward flushing process with the above structure, the Venturi effect is utilized. By means of the negative pressure that appears in the upward flushing pipeline, the gas in the lower flushing pipeline and the lower flushing pipe is discharged into the upward flushing pipeline and then discharged through the exhaust passage. After switching to downward flushing, the water discharge time of the gas-liquid mixture can be reduced, and the water discharge noise caused by a large amount of air in the discharged water can be significantly eliminated.

[0010] In a schematic embodiment of the reversing valve of the toilet, when the reversing rotor rotates to the upward flushing position, the gap between the reversing rotor and the inner wall of the reversing chamber forms an exhaust passage.

[0011] In a schematic embodiment of the reversing valve of the toilet, the exhaust passage is an exhaust pipeline, and the exhaust pipeline penetrates through the pipe wall of the upward flushing pipeline to communicate with the upward flushing pipeline, and penetrates through the pipe wall of the lower flushing pipeline to communicate with the lower flushing pipeline.

[0012] In a schematic embodiment of the reversing valve of the toilet, the exhaust pipeline is a rubber pipe.

[0013] In a schematic embodiment of the reversing valve of the toilet, the reversing rotor has an upward flushing drainage surface that can drain the liquid in the water inlet pipeline to the upward flushing pipeline when in the upward flushing position, and a downward flushing drainage surface that can drain the liquid in the water inlet pipeline to the downward flushing pipeline when in the downward flushing position.

[0014] In a schematic embodiment of the reversing valve of the toilet, the upward flushing drainage surface is successively divided into a first drainage surface and a second drainage surface along its drainage direction, and the extension surface of the second drainage surface in the upward flushing position coincides with the inner surface of the upward flushing pipeline.

[0015] In a schematic embodiment of the reversing valve of the toilet, the first drainage surface is an arc surface that is curved along the drainage direction.

[0016] In a schematic embodiment of the reversing valve of the toilet, when the reversing rotor is in the upward flushing position, the gap between the reversing rotor and the inner wall of the reversing chamber forms a liquid inlet passage that connects the water inlet pipeline to the downward flushing pipeline, and the liquid inlet passage allows liquid to enter the downward flushing pipeline. The above structure can improve the efficiency and effect of discharging air from the lower flushing pipeline and the lower flushing pipe during the upward flushing process. After switching from upward flushing to downward flushing, the water discharge time of the gas-liquid mixture can be further reduced, and the water discharge noise can be further eliminated.

[0017] This application also provides a toilet, which includes the above reversing valve, a water inlet pipe, an upward flushing pipe, and a downward flushing pipe. The water inlet pipe is connected to the water inlet pipeline of the reversing valve. The upward flushing pipe is connected to the upward flushing pipeline of the reversing valve. The downward flushing pipe is connected to the downward flushing pipeline of the reversing valve.

[0018] When the above toilet switches from flushing from above to flushing from below, it can reduce the water outlet time of the air-liquid mixture and eliminate the water outlet noise. Brief Description of the Drawings

[0019] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0020] Figure 1 A schematic internal structure diagram for explaining a schematic embodiment of the reversing valve of the toilet.

[0021] Figure 2 For explaining Figure 1 A working schematic diagram when the shown reversing rotor switches to the upper flushing position.

[0022] Figure 3 For explaining Figure 1 A working schematic diagram when the shown reversing rotor switches to the lower flushing position.

[0023] Figure 4 A schematic internal structure diagram for explaining another schematic embodiment of the reversing valve of the toilet.

[0024] Figure 5 A schematic internal structure diagram for explaining still another schematic embodiment of the reversing valve of the toilet.

[0025] Figure 6 A schematic structure diagram for explaining the reversing valve of the toilet and a schematic embodiment of the toilet.

[0026] Reference Numeral Explanation:

[0027] 10 Reversing valve

[0028] 12 Reversing valve body

[0029] 122 Reversing cavity

[0030] 124 Water inlet pipeline

[0031] 126 Upper flushing pipeline

[0032] 127 Liquid inlet channel

[0033] 128 Lower flushing pipeline

[0034] 129 Exhaust channel

[0035] 14 Reversing rotor

[0036] 145 First drainage surface

[0037] Upper flushing drainage surface 146

[0038] Second drainage surface 147

[0039] Lower flushing drainage surface 148

[0040] Water inlet pipeline 40

[0041] Upper flushing pipeline 60

[0042] Lower flushing pipeline 80 Specific implementation mode

[0043] To make the objectives, technical solutions and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0044] In this document, "schematic" means "serving as an example, instance or illustration", and any illustration or implementation mode described as "schematic" in this document should not be interpreted as a more preferred or more advantageous technical solution.

[0045] To make the drawings concise, only the parts related to this application are schematically shown in each drawing, and they do not represent their actual structures as products. In addition, to make the drawings concise and easy to understand, for components with the same structure or function in some drawings, only one of them is schematically shown, or only one of them is marked.

[0046] The following details the technical solutions provided by each embodiment of this application in conjunction with the drawings.

[0047] Figure 1 Internal structure schematic diagram of a schematic implementation mode of the reversing valve for a toilet. As Figure 1 shown, the reversing valve 10 of the toilet includes a reversing valve body 12 and a reversing rotor 14. A reversing chamber 122 is formed inside the reversing valve body 12, and a water inlet pipeline 124, a lower flushing pipeline 126 and a lower flushing pipeline 128 are also formed inside the reversing valve body 12. The water inlet pipeline 124, the lower flushing pipeline 126 and the lower flushing pipeline 128 can be respectively connected to the reversing chamber 122.

[0048] The reversing valve 10 is arranged in the flushing system of the toilet, as Figure 6As shown in the figure, the reversing valve 10 is connected to the water inlet pipe 40 of the toilet through the water inlet pipeline 124, and is used to receive the flushing water pumped out from the toilet tank 20 by the submersible pump 30. The reversing valve 10 is also connected to the upper flushing pipe 60 of the toilet through the upper flushing pipeline 126, and the water outlet end of the upper flushing pipe 60 can direct the flushing water to the inner wall of the toilet to realize the ring flushing of the inner wall of the toilet. The reversing valve 10 is also connected to the lower flushing pipe 80 of the toilet through the lower flushing pipeline 128, and the water outlet end of the lower flushing pipe 80 can directly flush the flushing water into the sewer pipe of the toilet.

[0049] The reversing rotor 14 is arranged in the reversing cavity 122, and the reversing rotor 14 can be switched between an upper flushing position and a lower flushing position. When the reversing rotor 14 is switched to the upper flushing position, as Figure 2 shown, the liquid in the water inlet pipeline 124 will be diverted to the upper flushing pipeline 126. When the reversing rotor 14 is switched to the lower flushing position, as Figure 3 shown, the liquid in the water inlet pipeline 124 will be diverted to the lower flushing pipeline 128.

[0050] In addition, the reversing valve body 10 can also form an exhaust passage 129 connecting the upper flushing pipeline 126 and the lower flushing pipeline 128. In the Figure 2 embodiment shown, when the reversing rotor 14 rotates to the upper flushing position, there is a gap between the reversing rotor 14 and the inner wall of the reversing cavity 122, constituting the above-mentioned exhaust passage 129.

[0051] When the submersible pump 30 (see Figure 6 ) is not working, the reversing rotor 14 usually remains in the upper flushing position. At this time, the upper flushing pipeline 126 is directly connected to the external air through the upper flushing pipe 60, the lower flushing pipeline 128 is connected to the upper flushing pipeline 126 through the exhaust passage 129, and the water outlet end of the lower flushing pipe 80 connected to the lower flushing pipeline 128 is liquid-sealed. Therefore, the lower flushing pipe 80 and the lower flushing pipeline 128 are filled with air at this time. It can be seen that the technical solution of the present application no longer requires the reversing rotor to maintain the sealing of the lower flushing pipeline, reducing the requirement for the service life of the reversing rotor.

[0052] By turning on the submersible pump 30 to flush water and keeping the reversing rotor 14 in the upper flushing position, the upper flushing is first performed. As Figure 2 shown, the water flows in from the water inlet pipeline 124, flows through the reversing cavity 122 and then flows out from the upper flushing pipeline 126. During the process of the water flowing through the upper flushing pipeline 126, due to the relatively fast water flow speed, the Venturi effect will be caused, resulting in negative pressure in the upper flushing pipeline 126. Therefore, the water will not flow into the lower flushing pipeline 128 through the exhaust passage 129. Instead, the air in the lower flushing pipeline 128 will enter the upper flushing pipeline 126 from the lower flushing pipeline 128 through the exhaust passage 129 under the negative pressure of the upper flushing pipeline 126. See Figure 2The dashed arrows in it. During this process, the air in the downflush pipeline 128 and the downflush pipe 80 will be exhausted first. Until the upflush ends, the reversing rotor 14 is switched to the downflush position to perform downflushing water. See Figure 3 , at this time, a large amount of gas in the downflush pipeline 128 and the downflush pipe 80 has been exhausted, and the inside of the downflush pipeline 128 and the downflush pipe 80 is in a negative pressure state, which will further accelerate the flow rate of the downflush water flow, quickly exhaust the remaining air in the downflush pipeline 128 and the downflush pipe 80, greatly reduce the water outlet time of the gas-liquid mixture, and significantly eliminate the water outlet noise caused by a large amount of air contained in the water outlet.

[0053] After adopting the above structure, compared with the prior art mentioned in the background art, there is no need to require the reversing rotor to maintain the sealing of the downflush pipeline. There is no need to worry about the problem of the decrease in sealing caused by the service life, resulting in a long gas-liquid mixture water outlet stage and noise generation during downflushing water.

[0054] As described above, Figure 2 In the embodiment shown, the exhaust passage 129 is formed by the gap left between the reversing rotor 14 and the inner wall of the reversing cavity 122 when the reversing rotor 14 rotates to the upflush position. However, according to different design requirements, other methods can also be used to set the exhaust passage 129. For example, see Figure 4 , as Figure 4 shown, the exhaust passage 129 is an independently provided exhaust pipe. For example, a rubber pipe is used. The independently provided exhaust pipe can penetrate through the pipe wall of the upflush pipeline 126 to communicate with the upflush pipeline 126, and can penetrate through the pipe wall of the downflush pipeline 128 to communicate with the downflush pipeline 128.

[0055] In Figure 1 , Figure 2 and Figure 3 shown in the embodiments, the reversing rotor 14 also has an upflush drainage surface 146 and a downflush drainage surface 148. The upflush drainage surface 146 in the upflush position can drain the liquid in the water inlet pipeline 124 to the upflush pipeline 126, and the downflush drainage surface 148 in the downflush position can drain the liquid in the water inlet pipeline 124 to the downflush pipeline 128.

[0056] In Figure 1 , Figure 2 and Figure 3In the illustrated embodiment, the upper flushing drainage surface 146 is sequentially divided into a first drainage surface 145 and a second drainage surface 147 along its drainage direction. The first drainage surface 145 can be an arc surface, a flat surface, or a spherical surface, and the second drainage surface 147 can also be an arc surface, a flat surface, or a spherical surface. When the reversing rotor 14 is in the upper flushing position, the extension surface of the second drainage surface 147 coincides with the inner surface of the upper flushing pipeline 126, that is, there is no height difference between the second drainage surface 147 and the inner surface of the upper flushing pipeline 126, which will not block the water flow and will not affect the flow rate of the upper flushing water flow, ensuring the exhaust effect achieved through the Venturi effect.

[0057] In addition, since the extension surface of the second drainage surface 147 coincides with the inner surface of the upper flushing pipeline 126, the second drainage surface 147 forms a buffering effect on the water flow. As Figure 3 shown, after the reversing rotor 14 is in the lower flushing position, if the water flow flows to the first drainage surface 145 and then flows to the inner wall of the reversing chamber 122 after being buffered by the second drainage surface 147. During this process, the second drainage surface 147 plays a buffering role, which can prevent the water flow from directly flowing from the first drainage surface 145 to the inner wall of the reversing chamber 122, reduce turbulence, and avoid affecting the lower flushing water flow rate.

[0058] In Figure 1 、 Figure 2 and Figure 3 shown in the illustrated embodiment, the first drainage surface 145 is an arc surface curved along the drainage direction. This design helps the water flow flowing in from the water inlet pipeline 124 to flow more smoothly towards the lower flushing pipeline 126, so as to maintain the flow rate of the upper flushing water flow and ensure the exhaust effect achieved through the Venturi effect.

[0059] Figure 5 The internal structure schematic diagram for another schematic embodiment of the reversing valve of the toilet. As Figure 5 shown, when the reversing rotor 14 is in the upper flushing position, the gap between the reversing rotor 14 and the inner wall of the reversing chamber 122 forms a liquid inlet channel 127 that connects the water inlet pipeline 124 to the lower flushing pipeline 128, and the liquid inlet channel 127 allows liquid to enter the lower flushing pipeline 128. In Figure 5In the illustrated embodiment, when the reversing rotor 14 is in the upper flushing position, the liquid inlet passage 127 is formed between one end on the left side of the reversing rotor 14 and the inner wall of the reversing chamber 122, and the exhaust passage 129 is formed between one end on the right side of the reversing rotor 14 and the inner wall of the reversing chamber 122. Under this design, during the upper flushing process, the water flow velocity in the upper flushing pipeline 126 is relatively fast, and the negative pressure formed thereby will carry out the gas in the lower flushing pipeline 128 through the exhaust passage 129. Since the reversing rotor itself has a certain flow resistance effect, the liquid in the water flow will flow into the lower flushing pipeline 128 through the liquid inlet passage 127. Because the lower flushing pipeline 128 and the lower flushing pipe 80 are in a liquid seal state at this time, the liquid flowing into the lower flushing pipeline 128 will further help the air in the lower flushing pipeline 128 and the lower flushing pipe 80 to be discharged into the upper flushing pipeline 126 through the exhaust passage 129, improving the efficiency and effect of air discharge in the lower flushing pipeline 128 and the lower flushing pipe 80 during the upper flushing process. After switching from upper flushing to lower flushing, the water outlet time of gas-liquid mixture can be further reduced, and the water outlet noise can be further eliminated.

[0060] The present application also provides a toilet, as Figure 6 shown, which includes the above-mentioned reversing valve 10, a water inlet pipe 40, an upper flushing pipe 60 and a lower flushing pipe 80, wherein the water inlet pipe 40 is connected to the water inlet pipeline 124 of the reversing valve 10, the upper flushing pipe 60 is connected to the upper flushing pipeline 126 of the reversing valve 10, and the lower flushing pipe 80 is connected to the lower flushing pipeline 128 of the reversing valve 10.

[0061] When the above-mentioned toilet switches from upper flushing to lower flushing, the water outlet time of gas-liquid mixture can be reduced, and the water outlet noise can be eliminated.

[0062] The above are only the specific embodiments of the present application. Under the above teachings of the present application, those skilled in the art can make other improvements or deformations based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present application, and the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. The reversing valve (10) of a toilet, comprising: A reversing valve body (12) having a reversing chamber (122) formed therein, and an inlet water pipe (124), an upper flushing pipe (126), and a lower flushing pipe (128) formed inside the reversing valve body (12) and capable of communicating with the reversing chamber (122) respectively; A reversing rotor (14) rotatably disposed in the reversing chamber (122), the reversing rotor (14) being capable of switching to an upper flushing position to divert the liquid in the inlet water pipe (124) to the upper flushing pipe (126), and the reversing rotor (14) being further capable of switching to a lower flushing position to divert the liquid in the inlet water pipe (124) to the lower flushing pipe (128), Characterized in that, When the reversing rotor (14) rotates to the upper flushing position, the gap between the reversing rotor (14) and the inner wall of the reversing chamber (122) forms an exhaust passage (129), the exhaust passage (129) is an exhaust pipe, the exhaust pipe penetrates through the wall of the upper flushing pipe (126) to communicate with the upper flushing pipe (126), and penetrates through the wall of the lower flushing pipe (128) to communicate with the lower flushing pipe (128), The reversing valve body (12) can also form an exhaust passage (129) communicating the upper flushing pipe (126) and the lower flushing pipe (128). When the reversing rotor (14) is in the upper flushing position, the gas in the lower flushing pipe (128) will be discharged into the upper flushing pipe (126) through the exhaust passage (129) due to the negative pressure caused by the water flow in the upper flushing pipe (126).

2. The reversing valve according to claim 1, characterized in that, The exhaust pipe is a rubber pipe.

3. The reversing valve according to claim 1, characterized in that, The reversing rotor (14) has an upper flushing diversion surface (146) capable of diverting the liquid in the inlet water pipe (124) to the upper flushing pipe (126) in the upper flushing position, and a lower flushing diversion surface (148) capable of diverting the liquid in the inlet water pipe (124) to the lower flushing pipe (128) in the lower flushing position.

4. The reversing valve according to claim 3, characterized in that, The upper flushing diversion surface (146) is successively divided into a first diversion surface (145) and a second diversion surface (147) along its diversion direction. The extension surface of the second diversion surface (147) in the upper flushing position coincides with the inner surface of the upper flushing pipe (126).

5. The directional control valve according to claim 4, wherein, The first diversion surface (145) is an arc surface curved along the diversion direction.

6. The reversing valve according to claim 1, characterized in that, When the reversing rotor (14) is in the upper flushing position, the gap between the reversing rotor (14) and the inner wall of the reversing chamber (122) forms a liquid inlet passage (127) for the inlet water pipe (124) to communicate with the lower flushing pipe, and the liquid inlet passage (127) allows liquid to enter the lower flushing pipe (128).

7. Toilet, characterized in that, It includes: The reversing valve (10) according to any one of claims 1 to 6; An inlet water pipe (40) connected to the inlet water pipe (124) of the reversing valve (10); An upper flushing pipe (60) connected to the upper flushing pipe (126) of the reversing valve (10); The lower flushing pipe (80) is connected to the lower flushing pipeline (128) of the reversing valve (10).

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