Waste discharge pipe, waste discharge system, waste discharge control method, waste discharge control device, and toilet

Abstract

A waste discharge pipe 1, comprising a pipe body 11, is provided with a waste suction port 113, a waste discharge port 114 and an overflow port 115. The waste discharge port 114 and the waste suction port 113 face different directions. The waste suction port 113 is installed to communicate with the waste discharge outlet 411 of the toilet seat body 4. The pipe body 11 is installed so as to be rotatable between an initial position and a waste discharge position around the central axis of the waste suction port 113 with respect to the toilet seat body 4. In a state where the pipe body 11 is in the initial position, the opening of the waste discharge port 114 faces upward, the overflow port 115 is located below the waste discharge port 114 and above the waste suction port 113.

Description

Technical Field

[0001] This article relates to kitchen and toilet technologies, particularly, but not limited to, sewage discharge pipes, sewage discharge systems, sewage discharge control methods, sewage discharge control devices, and toilets.

Background Art

[0002] Currently, the sewage discharge method using a sewage discharge pipe applied to a rear-mounted toilet sewage discharge system usually discharges sewage only by the amount of water stored in the initial state. Therefore, the water storage amount in the initial state of the toilet has a great influence on the sewage discharge and cleaning effect. In order to enhance the sewage discharge and cleaning effect, it is necessary to increase the water storage amount in the initial state, which requires raising the sewage discharge pipe and increasing the water seal of the toilet. However, although this increases the water storage amount, due to the high water surface, it is easy for water splashes to occur when the user uses the toilet, which affects the user experience.

Summary of the Invention

[0003] The following is an overview of the main topics detailed in this article. This overview is not intended to limit the scope of protection of the claims.

[0004] In an embodiment of the present disclosure, a sewage discharge pipe is provided, which includes a pipe body. A sewage suction port, a sewage discharge port, and an overflow port are provided on the pipe body. The directions of the sewage discharge port and the sewage suction port are different. The sewage suction port is installed to communicate with the sewage discharge outlet of the toilet seat body. The pipe body is installed so that it can rotate between an initial position and a sewage discharge position around the central axis of the sewage suction port with respect to the toilet seat body. When the pipe body is in the initial position, the opening of the sewage discharge port faces upward, the overflow port is located below the sewage discharge port and above the sewage suction port.

[0005] In an embodiment of the present disclosure, a sewage discharge system is further provided, which includes a sewage discharge box, a sewage discharge pipe according to any of the above embodiments, at least partially located in the sewage discharge box and rotatably connected to the sewage discharge box, and a driving device connected to the sewage discharge pipe and installed to drive the sewage discharge pipe to rotate relative to the sewage discharge box.

[0006] In an embodiment of the present disclosure, a toilet is further provided, which includes a toilet seat body provided with a base cavity and a sewage discharge outlet in the base cavity, and a sewage discharge system according to the above embodiment attached to the toilet seat body with a sewage suction inlet communicating with the sewage discharge outlet.

[0007] In an embodiment of the present disclosure, a sewage discharge control method is provided, which is applied to a toilet. The toilet includes a toilet seat body, a rim water spraying device and a sewage discharge pipe. The sewage discharge pipe is provided with a sewage suction inlet, a sewage discharge outlet and an overflow port. The sewage suction inlet communicates with the sewage discharge outlet of the toilet seat body. The sewage discharge pipe is installed rotatably between an initial position and a sewage discharge position relative to the toilet seat body. When the sewage discharge pipe is in the initial position, the overflow port is located below the sewage discharge outlet and above the sewage suction inlet, and the water surface level of the toilet aligns with the lowest point of the overflow port. The sewage discharge control method includes controlling the rim water spraying device to spray water onto the pan surface of the toilet seat body based on the sewage discharge pipe being in the initial position to increase the water seal height of the toilet, and controlling the sewage discharge pipe to rotate downward from the initial position to the sewage discharge position to discharge sewage.

[0008] In an embodiment of the present disclosure, a sewage discharge control device is further provided, which includes a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the sewage discharge control method according to any of the above embodiments are realized. In an embodiment of the present disclosure, a toilet is further provided, which includes the sewage discharge control device according to the above embodiment.

[0009] After reading and understanding the drawings and the detailed description, other aspects can be understood.

Brief Description of the Drawings

[0010] The drawings are provided for understanding the technical solution of the present disclosure, form a part of the specification, and are for interpreting the technical solution of the present disclosure together with the embodiments of the present disclosure, rather than for limiting the technical solution of the present disclosure.

[0011]

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Embodiments for Carrying Out the Invention

[0012] In the present disclosure, a plurality of embodiments are described, but the description is exemplary and not limiting. It will be apparent to those skilled in the art that more embodiments and implementation forms may exist within the scope included in the embodiments described in the present disclosure. The drawings show many possible combinations of features, which are considered in the embodiments, but many other combinations of the disclosed features are also possible. Unless otherwise specifically limited, any feature or element of any embodiment can be used in combination with any other feature or element in any other embodiment, or can replace any other feature or element in any other embodiment.

[0013] The present disclosure is assumed to include combinations with features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in the present disclosure may be combined with any conventional feature or element in order to form a unique technical solution defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other technical solutions to form another unique technical solution defined by the scope of the patent claims. Therefore, it should be understood that the features shown and / or described in the present disclosure can be realized alone or in any suitable combination. Therefore, the embodiments are not subject to other limitations except those based on the appended patent claims and their equivalent substitutions. Furthermore, various modifications and changes can be made within the protection scope of the appended patent claims.

[0014] In addition, when describing exemplary embodiments, the specification may present a method and / or process as a particular sequence of steps. However, to the extent that the method or process does not depend on a particular order of the steps described herein, the method or process should not be limited to the steps in the particular order described. As will be understood by those skilled in the art, other step orders are possible. Accordingly, the particular order of steps described in the specification should not be construed as a limitation on the claims. Also, the claims for the method and / or process are not limited to performing those steps in the order described, and as will be readily understood by those skilled in the art, these orders may be changed and still remain within the spirit and scope of the embodiments of the present disclosure.

[0015] As shown in FIGS. 1 to 4, in an embodiment of the present disclosure, a dirt discharge pipe 1 including a pipe body 11 is provided. The pipe body 11 is provided with a dirt suction port 113, a dirt discharge port 114, and an overflow port 115. The dirt discharge port 114 and the dirt suction port 113 are oriented differently. The dirt suction port 113 is installed to communicate with the dirt discharge outlet 411 of the toilet seat body 4. The pipe body 11 is installed so as to be rotatable between an initial position and a dirt discharge position about the central axis of the dirt suction port 113 with respect to the toilet seat body 4.

[0016] As shown in FIGS. 2 and 3, with the pipe body 11 in the initial position, the opening of the dirt discharge port 114 faces upward, the overflow port 115 is located below the dirt discharge port 114, and above the dirt suction port 113.

[0017] According to an embodiment of the present disclosure, the dirt discharge pipe 1 includes a pipe body 11 provided with a dirt suction port 113, a dirt discharge port 114, and an overflow port 115. Since the dirt suction port 113 of the pipe body 11 can communicate with the dirt discharge outlet 411 of the toilet seat body 4, the dirt in the toilet seat body 4 can flow into the dirt discharge pipe 1 through the dirt suction port 113. Since the dirt discharge outlet 411 of the toilet seat body 4 is usually installed facing backward, after the installation of the toilet is completed, the dirt suction port 113 of the pipe body 11 is correspondingly installed facing forward, and it may be installed facing the front or obliquely forward as appropriate. Since the pipe body 11 is rotatable between an initial position and a dirt discharge position around the central axis of the dirt suction port 113 with respect to the toilet seat body 4, the dirt can be discharged from the dirt discharge port 114 under the action of gravitational potential and falling discharge inertia, realizing the reverse dirt discharge function.

[0018] As shown in FIGS. 9 and 10, when the pipe body 11 is in the initial position, the opening of the dirt discharge port 114 faces upward, and since the overflow port 115 is located above the dirt suction port 113, it is ensured that a water seal can be formed in the toilet. At this time, since the overflow port 115 is located below the dirt discharge port 114, the liquid located above the overflow port 115 in the dirt discharge pipe 1 flows out to the outside through the overflow port 115 until the water surface level aligns with the lowest point of the overflow port 115. Therefore, the overflow port 115 can play a role in lowering the height of the water surface level, preventing water splashing when the user uses the toilet, which is beneficial to improving the user experience.

[0019] When dirt discharge is required, water begins to flow into the inside of the toilet seat body 4. Since the inflow water flow rate is much larger than the overflow water flow rate of the overflow port 115, as shown in FIGS. 11 and 12, the water surface level in the toilet quickly rises to the position of the dirt discharge port 114, the washing water volume and the gravitational potential of the washing water increase, and then, by rotating the dirt discharge pipe 1 downward to the dirt discharge position (as shown in FIGS. 13 and 14), a good dirt discharge washing effect can be obtained with a relatively large water volume and gravitational potential.

[0020] Therefore, in this embodiment, by adding an overflow port 115 to the dirt discharge pipe 1, the height of the toilet water surface is controlled by the overflow port 115, so that the toilet water surface is at a relatively low position in the non-dirt discharge state (as shown in FIGS. 9 and 10), and furthermore, it is possible to avoid the situation where the height of the toilet water surface becomes too high and splashing is likely to occur when the user uses the toilet. In addition, since the overflow flow rate through the overflow port 115 is much smaller than the inflow water flow rate of the toilet seat body 4, the toilet water surface can be raised to a relatively high position during dirt discharge (as shown in FIGS. 11 and 12), and furthermore, the gravitational potential of the washing water can be increased, and the dirt discharge and washing effect of the toilet can be enhanced.

[0021] And compared with the method of controlling the change of the water seal height by controlling the position change of the dirt discharge pipe 1 (that is, the dirt discharge pipe 1 is in an inclined position in the standby state to lower the water surface, and when dirt discharge is required, first control the dirt discharge pipe 1 to rotate to the upright position to raise the water surface, and then control the dirt discharge pipe 1 to rotate downward to discharge the dirt), in this embodiment, the effect of changing the water seal height can be obtained by simply improving the structure of the dirt discharge pipe 1. It is only necessary to change the position of the dirt discharge pipe 1 between the initial position and the dirt discharge position, and since switching to the inclined position in the standby state is not required, the electrical control procedure of the dirt discharge pipe 1 can be simplified, and furthermore, the failure rate of the electrical control can be reduced.

[0022] In one exemplary embodiment, as shown in FIGS. 1 to 4, the dirt discharge pipe 1 further includes a rotation connection portion 12, and the rotation connection portion 12 is connected to the pipe body 11 and is installed so as to be connected to a driving device 3 for driving the pipe body 11 to rotate about the central axis of the dirt suction port 113.

[0023] Thereby, after the assembly is completed, the driving device 3 can rotate the rotation connection portion 12, and further rotate the entire dirt discharge pipe 1 about the central axis of the dirt suction port 113 with respect to the toilet seat body 4.

[0024] The drive device 3 may be configured with a motor, a gearbox, etc. The shape of the rotary connection portion 12 is not limited. For example, it may be a non-circular annular boss for connecting to a motor shaft, and gear-shaped protrusions may be provided inside to facilitate connection with a gear shaft.

[0025] In one exemplary embodiment, as shown in FIGS. 1 to 4, the dirt discharge pipe 1 further includes a connection boss 13. The connection boss 13 is located outside the dirt suction port 113 and is connected to the outer wall of the pipe body 11. The inner diameter of the connection boss 13 is larger than the diameter of the dirt suction port 113.

[0026] The installation of the connection boss 13 facilitates the rotary connection between the dirt discharge pipe 1 and the dirt discharge box 2 or other structures, and also facilitates the installation of sealing components. Sealing cooperation among the dirt discharge pipe 1, the dirt discharge box 2, and the toilet base cavity 41 is realized, preventing the leakage of dirt.

[0027] In one exemplary embodiment, as shown in FIG. 3, one end of the pipe body 11 forms a dirt discharge port 114, the other end of the pipe body 11 is closed and installed, and the dirt suction port 113 is provided on the side wall of the pipe body 11.

[0028] Compared with a normal L-shaped bend pipe, in this form, it is advantageous to shorten the lateral length of the dirt discharge pipe 1, advantageous to shorten the flow path of dirt, and thus advantageous to improve the dirt discharge performance of the toilet. On the other hand, the requirements for the installation space of the dirt discharge pipe 1 can be reduced, which is also advantageous for the miniaturization of the toilet.

[0029] In one exemplary embodiment, as shown in FIG. 3, the pipe body 11 includes a cylindrical portion 111 and a bottom sealing portion 112.

[0030] One end of the cylindrical portion 111 forms a dirt discharge port 114. The dirt suction port 113 is provided on the side wall of the cylindrical portion 111 and extends to the other end of the cylindrical portion 111. The bottom sealing portion 112 is connected to the other end of the cylindrical portion 111 and seals the other end of the cylindrical portion 111.

[0031] In this embodiment, the pipe body 11 includes a cylindrical portion 111 and a bottom sealing portion 112. One end of the cylindrical portion 111 forms a dirt discharge port 114, and the other end is closed by the bottom sealing portion 112. The dirt discharge port 114 is provided on the side wall of the cylindrical portion 111 and extends to one end close to the bottom sealing portion 112 of the cylindrical portion 111. Therefore, when discharging dirt, the dirt entering the pipe body 11 from the dirt discharge port 114 basically only flows in the direction where the dirt discharge port 114 is located, which is beneficial for realizing the directional flow of dirt in the dirt discharge pipe 1, avoiding the accumulation of dirt at the bottom of the pipe body 11, and also beneficial for improving the dirt discharge performance of the toilet.

[0032] In one exemplary embodiment, as shown in FIG. 3, the bottom sealing portion 112 is recessed in a direction away from the dirt discharge port 114, and the maximum distance between the bottom sealing portion 112 and the dirt discharge port 114 is made larger than the maximum distance between the dirt suction port 113 and the dirt discharge port 114.

[0033] Thereby, the position of the lowest point of the pipe body 11 in the initial position can be made lower, which is beneficial for further increasing the water storage amount in the toilet at the initial position, and is also beneficial for further improving the dirt discharge and cleaning performance of the toilet.

[0034] In one exemplary embodiment, as shown in FIGS. 1, 2, and 4, the cylindrical portion 111 includes a first plate portion 1111, a second plate portion 1112, a third plate portion 1113, and a fourth plate portion 1114 that are sequentially connected end to end along its circumferential direction.

[0035] The first plate portion 1111 is a first flat plate, and the dirt suction port 113 is provided on the first plate portion 1111.

[0036] Thereby, the processing and forming of the dirt suction port 113 become easy, and other structures are processed at the dirt suction port 113 for use in realizing the rotatable connection between the dirt discharge pipe 1 and the dirt discharge box 2, which is also beneficial for reducing the installation difficulty of the dirt discharge pipe 1.

[0037] The rotation connection portion 12 is provided on the third plate portion 1113, and the connection boss 13 is provided on the first plate portion 1111.

[0038] In one exemplary embodiment, during the process of the dirt discharge pipe 1 rotating from the initial position to the dirt discharge position, it rotates towards the side where the fourth plate portion 1114 is located. The second plate portion 1112 is a second flat plate. As shown in FIGS. 1, 2, and 4, the third plate portion 1113 is an arc-shaped plate that curves in a direction away from the first plate portion 1111.

[0039] As shown in FIGS. 1 and 4, the fourth plate portion 1114 includes a third flat plate connected to the third plate portion 1113 and a curved plate 1115 connected to the first plate portion 1111. Along the direction approaching the dirt discharge port 114, the curved plate 1115 curves and recesses in a direction approaching the second plate portion 1112 and the third plate portion 1113.

[0040] In a normal design, the cylindrical portion 111 is set to a circular tube structure, and the radius of the circular tube is equal to the radius of the third plate portion 1113. In this form, by making the cylindrical portion 111 an irregular shaped structure, the half cylinder close to the toilet seat body 4 with a normal circular tube structure is expanded outwards to form a structure close to a prismatic shape (including three flat plates). In this way, the flow area of the cylindrical portion 111 increases, which is beneficial to improving the dirt discharge performance of the dirt discharge pipe 1. By converging the curved plate 1115 of the fourth plate portion 1114 inward, it is easier to accumulate and discharge dirt, avoiding dirt accumulation at the corner between the first plate portion 1111 and the fourth plate portion 1114, which is also beneficial to improving the dirt discharge performance of the dirt discharge pipe 1.

[0041] In one exemplary embodiment, as shown in FIGS. 1 and 2, the overflow port 115 is provided on the second plate portion 1112.

[0042] In this way, during the process of the dirt discharge pipe 1 rotating from the initial position to the dirt discharge position, the dirt flows in a direction away from the overflow port 115, and it is possible to avoid dirt accumulation at the overflow port 115 during the dirt discharge process.

[0043] In addition, since the first plate portion 1111 is rotatably connected to the dirt discharge box 2 and the third plate portion 1113 is connected to the drive device 3, by providing the overflow port 115 on the second plate portion 1112, it is advantageous for the overflow water to fall smoothly, avoiding being blocked by the connection structure, avoiding the drive device 3 from touching the water, and also advantageous for avoiding the overflow port 115 being blocked by dirt during the dirt discharge process.

[0044] In one exemplary embodiment, as shown in FIGS. 1 and 4, along the direction in which the first plate portion 1111 faces the third plate portion 1113, the second flat plate and the third flat plate extend obliquely in a direction approaching each other.

[0045] Compared with the form in which the second flat plate and the third flat plate are parallel to each other, in this form, the flow area of the cylindrical portion 111 is further increased, which is advantageous for further improving the dirt discharge performance of the dirt discharge pipe 1.

[0046] Also, such an installation is also advantageous for widening the width of the first flat plate, and thus for increasing the area of the dirt suction port 113, which is also advantageous for further improving the dirt discharge performance of the dirt discharge pipe 1.

[0047] In one exemplary embodiment, as shown in FIGS. 1 and 4, the first plate portion 1111, the second plate portion 1112, the third plate portion 1113, and the fourth plate portion 1114 are smoothly connected. In this way, it is possible to avoid the accumulation and residue of dirt due to corners in the dirt discharge pipe 1.

[0048] In one exemplary embodiment, as shown in FIG. 10, the diameter of the dirt suction port 113 is larger than half of the length of the cylindrical portion 111. Thereby, the area of the dirt suction port 113 becomes relatively large, which is advantageous for further improving the dirt discharge performance.

[0049] In one exemplary embodiment, as shown in FIG. 3, when the dirt discharge pipe 1 is in the initial position, the width L1 of the overflow port 115 is within the range of 5 mm to 30 mm, and the height L2 of the overflow port 115 is within the range of 2 mm to 10 mm.

[0050] The height and width of the overflow port 115 affect the overflow water velocity from the overflow port 115, the rising velocity of the water surface, the strength of the dirt discharge pipe 1, etc. If the height and width of the overflow port 115 are too large, the overflow water velocity is too fast, the water consumption required to raise the toilet water seal to the dirt discharge port 114 increases, the rising velocity of the water surface becomes small, and the strength of the dirt discharge pipe 1 is also affected.

[0051] According to research, by limiting the height of the overflow port 115 within the range of 2 mm to 10 mm, such as 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, etc., and limiting the width of the overflow port 115 within the range of 5 mm to 30 mm, such as 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, etc., it is possible to balance the overflow water velocity from the overflow port 115, the rising velocity of the water surface, and the strength of the dirt discharge pipe 1.

[0052] Of course, the height of the overflow port 115 is not limited to the above range, and the width of the overflow port 115 is not limited to the above range either, and can be adjusted as needed.

[0053] In one exemplary embodiment, as shown in FIG. 3, the minimum distance L3 between the central axis of the overflow port 115 and the dirt suction port 113 is within the range of 70 mm to 116 mm.

[0054] When the waste discharge pipe 1 is in the initial position, the position of the lowest point of the overflow port 115 determines the upper limit of the water surface in the toilet. The position of the lowest point of the outlet top wall of the toilet's basin cavity 41 determines the lower limit of the water seal in the toilet. As shown in FIG. 9, if the distance between the lowest point of the outlet top wall of the toilet's basin cavity 41 and the central axis of the waste suction port 113 of the waste discharge pipe 1 is H2, the height H0 of the water seal in the toilet in the initial position is equal to L3 - H2. Therefore, H0 and L3 are positively correlated. However, if H0 is too large, it is easy to cause splashing in the toilet. If H0 is too small, the water seal effect will deteriorate and odors will rise. On the other hand, making the radius R of the waste suction port 113 larger than H2 is beneficial for increasing the area of the waste suction port 113 and further improving the waste discharge performance. However, since the radius R of the waste suction port 113 must be smaller than L3, L3 also affects R.

[0055] According to research, by limiting the minimum distance L3 between the overflow port 115 and the central axis of the waste suction port 113 within the range of 70 mm to 116 mm, such as 70 mm, 80 mm, 90 mm, 100 mm, 110 mm, 116 mm, etc., the area of the waste suction port 113 and the height H0 of the toilet water seal can meet the requirements.

[0056] Of course, the minimum distance between the overflow port 115 and the central axis of the waste suction port 113 is not limited to the above range and can be adjusted according to needs.

[0057] In one exemplary embodiment, as shown in FIGS. 9, 11, and 13, the central axis of the waste suction port 113 is perpendicular to the central axis of the waste discharge port 114.

[0058] Thus, as shown in FIGS. 9, 11, and 13, in the initial position, the pipe body 11 of the dirt discharge pipe 1 is in an upright state, and the dirt suction port 113 faces forward. The dirt discharge pipe 1 can rotate about a horizontal axis. Compared with rotating about an inclined axis of the dirt discharge pipe 1, in this embodiment, it is advantageous for reducing the degree of change in the flow direction of dirt from the dirt suction port 113 to the dirt discharge port 114, and it is also advantageous for improving the dirt discharge performance of the dirt discharge pipe 1.

[0059] And by such installation, the dirt discharge box 2 can also be in an upright state, which is advantageous for reducing the difficulty of installing the dirt discharge box 2, and is also advantageous for improving the stability and reliability of the dirt discharge box 2.

[0060] As shown in FIG. 5, in the embodiment of the present disclosure, a dirt discharge system is further provided, which includes a dirt discharge box 2, the dirt discharge pipe 1 of any of the above embodiments, and a driving device 3.

[0061] The dirt discharge pipe 1 is at least partially located in the dirt discharge box 2 and is rotatably connected to the dirt discharge box 2.

[0062] The driving device 3 is connected to the dirt discharge pipe 1 and is used to drive the dirt discharge pipe 1 to rotate relative to the dirt discharge box 2.

[0063] The dirt discharge system according to the embodiment of the present disclosure includes the dirt discharge pipe 1 of any of the above embodiments, so it has all the beneficial effects of any of the above embodiments, and will not be repeatedly described here.

[0064] The dirt discharge pipe 1 may be completely located in the dirt discharge box 2.

[0065] Alternatively, the dirt discharge pipe 1 may be partially located in the dirt discharge box 2. The inlet pipe portion of the dirt discharge pipe 1 protrudes outside the dirt discharge box 2 and is rotatably connected to the toilet seat body 4 and communicates with the dirt discharge outlet 411 of the toilet base cavity 41.

[0066] In one exemplary embodiment, as shown in FIG. 5, the dirt discharge box 2 includes a box body 21 and a box lid 22. As shown in FIG. 13, a dirt inlet 211 is provided at the front of the box body 21. The dirt inlet 211 communicates with the dirt discharge outlet 411 of the base cavity 41 of the toilet seat body 4. The dirt discharge pipe 1 is located within the dirt discharge box 2, and the dirt suction inlet 113 of the dirt discharge pipe 1 communicates with the dirt inlet 211 of the dirt discharge box 2. As shown in FIG. 5, a dirt outlet 24 is provided at the lower part of the box body 21. The box lid 22 covers and is coupled to the box body 21. A sealing ring 25 is provided between the box lid 22 and the box body 21, and as shown in FIG. 5, a first sealing component 26 is provided between the dirt discharge pipe 1 and the dirt discharge box 2. As shown in FIG. 5, a connection hole 221 is provided on the box lid 22, and a rotary connection part 12 is provided on the dirt discharge pipe 1. The driving device 3 is connected to the rotary connection part 12 through the connection hole 221 and is used to drive the rotation of the dirt discharge pipe 1. The driving device 3 may be a gear box.

[0067] The dirt discharge principle of the dirt discharge system is as follows (as shown in FIGS. 9 to 14).

[0068] As shown in FIGS. 9 and 10, in the standby state, the dirt discharge pipe 1 is in the initial position. As shown in FIGS. 11 and 12, the rim water discharge device 42 discharges water, raising the height of the water surface of the toilet to the same height as the dirt discharge port 114.

[0069] When rotating to discharge dirt, the dirt in the base cavity 41 of the toilet seat body 4 enters the dirt discharge pipe 1. The dirt discharge pipe 1 rotates 100° to 135° clockwise from the initial position (i.e., the position where the dirt discharge port 114 is directly above, as shown in FIGS. 11 and 12) to the dirt discharge position (as shown in FIGS. 13 and 14) under the drive of the driving device 3. The dirt is discharged from the dirt discharge port 114 and discharged through the dirt outlet 24 of the dirt discharge box 2.

[0070] After the waste discharge operation ends, the waste discharged from the waste discharge pipe 1 flows from the waste outlet 24 of the waste discharge box 2 into the shifter 5, and then is introduced into an external waste discharge passage. A sealing ring is provided between the shifter 5 and the waste discharge box 2. The waste discharge pipe 1 is reset to its initial position by the drive of the drive device 3 (as shown in FIGS. 9 and 10) and is applied again during the next waste discharge function.

[0071] As shown in FIGS. 6, 7 and 8, in an embodiment of the present disclosure, a toilet is further provided, which includes a toilet seat body 4 and the waste discharge system of the above embodiment.

[0072] A base cavity 41 is provided in the toilet seat body 4, and a waste discharge outlet 411 is provided in the base cavity 41. The waste discharge system is attached to the toilet seat body 4, and the waste suction inlet 113 of the waste discharge system communicates with the waste discharge outlet 411.

[0073] Since the toilet according to the embodiment of the present disclosure includes the waste discharge system of the above embodiment, it has all the above beneficial effects and will not be repeatedly described here.

[0074] The waste discharge box 2 is fixedly connected to the toilet seat body 4, and a second sealing component 27 is provided between the waste discharge box 2 and the toilet seat body 4.

[0075] In one exemplary embodiment, as shown in FIGS. 9, 11 and 13, the waste discharge box 2 is arranged along the vertical direction.

[0076] Compared with the form in which the waste discharge box 2 is arranged obliquely, this form is advantageous for reducing the installation difficulty of the waste discharge box 2 and is also advantageous for miniaturizing the volume of the toilet.

[0077] In one exemplary embodiment, as shown in FIG. 7, a rim water discharge device 42 is provided on the toilet seat body 4, and the toilet further includes a flow rate detection device 43 installed to detect the water flow rate of the rim water discharge device 42.

[0078] In this way, the water flow detection device 43 can detect the water discharge amount of the rim water discharge device 42, which is advantageous for controlling the water discharge amount according to demand, and thus advantageous for water conservation.

[0079] The toilet according to the embodiment of the present disclosure includes the sewage discharge system of the above embodiment, so it has all the above beneficial effects and will not be repeatedly described here.

[0080] In the embodiment of the present disclosure, a sewage discharge control method applied to the above toilet is further provided.

[0081] The toilet includes a toilet seat body 4, a rim water discharge device 42, and a sewage discharge pipe 1. The sewage discharge pipe 1 is provided with a sewage suction port 113, a sewage discharge port 114, and an overflow port 115. The sewage suction port 113 communicates with the sewage discharge outlet 411 of the toilet seat body 4. The sewage discharge pipe 1 is installed rotatably between an initial position and a sewage discharge position with respect to the toilet seat body 4. As shown in FIGS. 9 and 10, when the sewage discharge pipe 1 is in the initial position, the overflow port 115 is located below the sewage discharge port 114 and above the sewage suction port 113, and the water surface level of the toilet aligns with the lowest point of the overflow port 115.

[0082] The sewage discharge box 2, the sewage discharge pipe 1, and the drive device 3 constitute a rear-mounted sewage discharge system of the toilet. The sewage discharge box 2 is fixedly connected to the sewage discharge outlet 411 of the toilet seat body 4, and the sewage discharge pipe 1 is located inside the sewage discharge box 2. The drive device 3 is connected to the sewage discharge pipe 1 and is used to drive the rotation of the sewage discharge pipe 1.

[0083] Instead of the conventional sewage discharge and cleaning method using a siphon pipe, the rear-mounted sewage discharge system adopts a drop-type discharge structure method, and discharges the sewage in the toilet from the toilet basin cavity 41 and the toilet pipeline by using the natural gravity to drop. During the sewage discharge process, the sewage discharge pipe 1 rotates around the rotation axis to perform damped sewage discharge, and due to the action of gravity and sewage discharge inertia, the sewage in the toilet basin cavity 41 is efficiently and quickly discharged from the sewage discharge pipe 1.

[0084] The dirt discharge pipe 1 is installed so as to rotate and switch between an initial position and a dirt discharge position. As shown in FIGS. 9 and 10, in a state where the dirt discharge pipe 1 is in the initial position, since the overflow port 115 is located above the dirt suction port 113 and below the dirt discharge port 114, it is ensured that a water seal can be formed in the toilet. As shown in FIG. 9, at this time, since the overflow port 115 is located below the dirt discharge port 114, the liquid located above the overflow port 115 in the dirt discharge pipe 1 flows out to the outside through the overflow port 115 until the water seal surface aligns with the lowest point of the overflow port 115. The water seal height at this time is only H0. Therefore, the overflow port 115 can play a role in lowering the height of the water seal surface, preventing water splashes from scattering when the user uses the toilet, which is advantageous for improving the user's experience.

[0085] When dirt discharge is required, the rim water discharge device 42 discharges water inside the toilet seat body 4. Since the inflow water flow rate is much larger than the overflow water flow rate of the overflow port 115, as shown in FIGS. 11 and 12, the water seal surface in the toilet quickly rises to the position of the dirt discharge port 114, the height of the water seal surface increases by Hs and reaches H1, the washing water volume and the gravitational potential of the washing water increase, and then, as shown in FIGS. 13 and 14, by controlling the dirt discharge pipe 1 to rotate downward to the dirt discharge position, a good dirt discharge washing effect can be obtained with a relatively large water volume and gravitational potential.

[0086] Therefore, in the dirt discharge process, by controlling the difference between the height of the initial water seal surface and the height of the water seal surface at the time of discharge and fall, the dirt discharge efficiency can be increased and the dirt discharge effect can be enhanced.

[0087] As shown in FIG. 15, the dirt discharge control method includes the following steps S102 and S104. In step S102, based on the fact that the dirt discharge pipe is in the initial position, the rim water discharge device is controlled to discharge water onto the pan surface of the toilet seat body to increase the water seal height of the toilet. In step S104, in order to discharge the dirt, the dirt discharge pipe is controlled to rotate downward from the initial position to the dirt discharge position.

[0088] In the dirt discharge control method according to the embodiment of the present disclosure, it is only necessary to control the dirt discharge pipe 1 to rotate between the initial position and the dirt discharge position. Compared with the method of controlling the position change of the dirt discharge pipe 1 to change the water seal height (that is, in the standby state, the dirt discharge pipe 1 is placed in the inclined position to lower the water seal surface, and when dirt discharge is required, first control the dirt discharge pipe 1 to rotate to the upright position to raise the water seal surface, and then control the dirt discharge pipe 1 to rotate downward to discharge the dirt), in this embodiment, the effect of changing the water seal height can be obtained only by the overflow port 115. It is only necessary to change the position of the dirt discharge pipe 1 between the initial position and the dirt discharge position, and the switching to the inclined position in the standby state is omitted. Therefore, the electrical control procedure of the dirt discharge pipe 1 can be simplified, and the failure rate of the electrical control can be further reduced. It is advantageous for reducing the rotation error accumulated during the long-term use of the dirt discharge pipe 1, and thus is advantageous for improving the control accuracy.

[0089] In one exemplary embodiment, as shown in FIG. 16, after step S104, the dirt discharge control method may further include the following steps S106 and S108. In step S106, the dirt discharge pipe is controlled to be reset to the initial position. In step S108, the rim water spraying device is controlled to continuously spray water onto the pan surface of the toilet seat body to form a water seal in the toilet and complete one dirt discharge cycle.

[0090] In this way, after the dirt is discharged, the dirt discharge pipe 1 is automatically reset to the initial position. Then, the rim water spraying device 42 continuously sprays water onto the pan surface of the toilet seat body 4, and a water seal can be formed in the toilet for the next use.

[0091] As can be understood, the pan surface of the toilet seat body refers to the inner wall surface of the basin cavity 41 of the toilet seat body 4 and may also be called the internal toilet cleaning surface.

[0092] In one exemplary embodiment, controlling the rim water discharge device 42 to continuously discharge water onto the pan surface of the toilet seat body 4 to form a water seal in the toilet means that the rim water discharge device 42 is controlled to continuously discharge water onto the pan surface of the toilet seat body 4 until the water level in the toilet becomes higher than the lowest point of the overflow port 115, and then the rim water discharge device 42 is turned off so that the water level in the toilet becomes aligned with the lowest point of the overflow port 115 by overflow, including forming a water seal.

[0093] In the water replenishment stage after the completion of the waste discharge operation, the rim water discharge device 42 is turned off after the water level in the toilet becomes higher than the lowest point of the overflow port 115, and it is ensured that the finally formed water seal in the toilet does not become lower than the overflow port 115 but is aligned with the lowest point of the overflow port 115, thereby avoiding the situation where the height of the water surface in the toilet is too low and odors overflow.

[0094] In one exemplary embodiment, controlling the rim water discharge device 42 to continuously discharge water onto the pan surface of the toilet seat body 4 until the water level in the toilet becomes higher than the lowest point of the overflow port 115, and then turning off the rim water discharge device 42 means that when the waste discharge pipe 1 is reset to the initial position, the water replenishment timing is started, and when the water replenishment time length reaches the set time length, the rim water discharge device 42 is turned off.

[0095] Since the shapes of the toilet seat body 4 and the waste discharge pipe 1 are constant, the amount of water required to form a water seal is also constant. By timing in the design process, the shortest water replenishment time length required for the waste discharge pipe 1 to be reset until the formation of the water seal can be determined. The water replenishment time during use is longer than the shortest water replenishment time length in the test process, and it is guaranteed that the water surface in the toilet becomes higher than the lowest point of the overflow port 115. Therefore, the set time length can be set longer than the shortest water replenishment time length in the test process.

[0096] By controlling the turning-off of the rim water discharging device 42 according to time, it is advantageous for simplifying the electric control procedure and further reducing the failure rate of the electric control.

[0097] In another exemplary embodiment, until the water level in the toilet becomes higher than the lowest point of the overflow port 115, control is performed to continuously discharge water from the rim water discharging device 42 onto the pan surface of the toilet seat body 4, and then turning off the rim water discharging device 42, when the dirt discharge pipe 1 is reset to the initial position, start detecting the water discharge amount of the rim water discharging device 42, and when the water discharge amount of the rim water discharging device 42 reaches the set water discharge amount, turn off the rim water discharging device.

[0098] Since the shapes of the toilet seat body 4 and the dirt discharge pipe 1 are constant, the amount of water required to form the water seal is also constant. By detecting the flow rate in the design process, the minimum water discharge flow rate required for the dirt discharge pipe 1 to be reset until the formation of the water seal can be determined, and the supplementary water discharge amount in the use process is larger than the minimum water discharge flow rate in the test process, ensuring that the water surface of the toilet is higher than the lowest point of the overflow port 115. Therefore, the set water discharge amount can be set larger than the minimum water discharge flow rate in the test process.

[0099] Compared with controlling the turning-off of the rim water discharging device 42 according to the time length, in this embodiment, the turning-off of the rim water discharging device 42 is controlled according to the flow rate, which has higher reliability and is advantageous for water conservation.

[0100] In one exemplary embodiment, in one dirt discharge cycle, after the rim water discharging device 42 is turned on, it continues to discharge water until it is turned off.

[0101] The rim water discharging device 42 of a normal toilet generally discharges water only in the initial stage, mainly wetting the inner wall surface of the toilet base cavity 41 (i.e., the pan surface of the toilet seat body) to drop the dirt stuck to the inner wall surface of the base cavity 41. Then, the rim water discharging device is turned off, and the injection device on the opposite side of the dirt discharge outlet 411 of the toilet seat body 4 is activated, and the dirt is washed away by the high-speed and large-flow water flow of the injection device.

[0102] In an embodiment of the present disclosure, the rim water spraying device 42 is continuously turned on in the initial stage, the dirt discharge stage, and the water replenishment stage. In the initial stage, it plays a wetting role and a role in improving the water seal surface. In the dirt discharge stage, it plays a role in increasing the gravitational potential of the dirt. In the water replenishment stage, it plays a role in supplying water for the water seal. Therefore, the rim water spraying device 42 continues to spray water, which is beneficial to improving the dirt discharge performance and also beneficial to simplifying the electrical control procedure of the toilet.

[0103] In one exemplary embodiment, in one dirt discharge cycle, Before the dirt discharge pipe 1 starts to rotate (i.e., the initial stage), the startup time length of the rim water spraying device 42 is within the range of 5 s to 6 s, for example, 5 s, 5.2 s, 5.4 s, 5.5 s, 5.6 s, 5.8 s, 6 s, etc. The time length from the start of rotation of the dirt discharge pipe 1 to the start of the reset rotation of the dirt discharge pipe 1 (i.e., the dirt discharge stage) is within the range of 3 s to 8 s, for example, 3 s, 4 s, 5 s, 6 s, 7 s, 8 s, etc. The time length from the start of the reset rotation of the dirt discharge pipe 1 to the turn-off of the rim water spraying device 42 (i.e., the water replenishment stage) is within the range of 4 s to 10 s, for example, 4 s, 5 s, 6 s, 7 s, 8 s, 9 s, 10 s, etc.

[0104] Verification shows that in the flow of dirt discharge cleaning, by limiting the cleaning time length in each stage of the rim water spraying device 42 within the above range, while ensuring effective cleaning of the inner wall surface of the basin cavity 41 and the dirt discharge pipe 1, the least amount of water resources can be used. In this way, it is possible to avoid the situation where the cleaning time length is too short and the dirt discharge cleaning effect is poor, and it is also possible to avoid the situation where the cleaning time length is too long and the water consumption is too large, increasing the waste of water resources.

[0105] Of course, the time length of each stage described above is not limited to the above range and can be adjusted according to needs.

[0106] In one exemplary embodiment, the rotation angle of the dirt discharge pipe 1 from the initial position to the dirt discharge position is within the range of 100° to 135°.

[0107] By limiting the rotation angle B of the dirt discharge pipe 1 within the above range with respect to the 180° rotation of the dirt discharge pipe 1 from top to bottom, the requirements of rotary dirt discharge can be met, the movement range of the dirt discharge pipe 1 can be reduced, which is further beneficial to the reduction of the volume of the dirt discharge box 2, beneficial to the miniaturization of the dirt discharge box 2, and beneficial to the improvement of the flexibility and compatibility of the dirt discharge system 10.

[0108] Also, since the influence on the goodness or badness of the dirt discharge effect at the time point in the early stage of the dirt discharge process is the greatest, if the rotation range and the time length are too long, it is disadvantageous to the stability of the dirt discharge effect and the consistency of the effect. Therefore, by limiting the rotation angle B of the dirt discharge pipe 1 within the above range, it is also beneficial to shorten the movement time of the dirt discharge pipe 1, and thus to make the overall dirt discharge effect more stable.

[0109] Of course, the rotation angle B of the dirt discharge pipe 1 from the initial dirt discharge position to the dirt discharge position is not limited to the above range and can be adjusted according to requirements.

[0110] In one exemplary embodiment, as shown in FIGS. 9, 10, 11 and 12, when the dirt discharge pipe 1 is in the initial position, the dirt discharge port 114 is horizontally upward.

[0111] Thereby, when the dirt discharge pipe 1 is in the initial position and the rim water spraying device 42 is turned on, the water surface of the toilet can rise to align with the dirt discharge port 114, the internal space of the dirt discharge pipe 1 can be fully utilized, and it is beneficial to raise the gravitational potential of the liquid and dirt in the pipe as much as possible, and thus to improve the dirt discharge efficiency and the dirt discharge effect.

[0112] In one exemplary embodiment, the dirt discharge control method includes After energization, controlling the dirt discharge pipe 1 to rotate from the position before energization to the initial position, and Controlling the rim water spraying device 42 to spray water on the pan surface of the toilet seat body 4 to form a water seal in the toilet and enter the standby state.

[0113] In the power-off state, since the position of the dirt discharge pipe 1 may change due to an external force or other factors, after power-on, first control the dirt discharge pipe 1 to rotate to the initial position, and then turn on the rim water discharge device 42 to discharge water, which is beneficial to ensuring the accuracy of the subsequent water surface position.

[0114] In one exemplary embodiment, the dirt discharge control method further includes a step of confirming that the toilet is in a use state or a waiting state for cleaning, and controlling the rim water discharge device 42 to discharge water onto the pan surface of the toilet seat 4 to increase the water seal height of the toilet.

[0115] When it is confirmed that the toilet is in a use state or a waiting state for cleaning, it automatically enters the dirt discharge and cleaning flow without the need for manual operation by the user, improving the automation procedure of the product and being beneficial to improving the user experience.

[0116] When the toilet is in a use state, it can enter the dirt discharge and cleaning flow, thereby wetting the inner wall surface of the toilet base cavity 41 and reducing the possibility of dirt getting stuck on the wall.

[0117] When the toilet is in a waiting state for cleaning, it can also shift to the dirt discharge and cleaning flow, which is beneficial to water resource conservation.

[0118] In one exemplary embodiment, in the step of confirming that the toilet is in a use state or a waiting state for cleaning, it is confirmed that the toilet is in a use state by detecting the user's sitting signal, and it is confirmed that the toilet is in a waiting state for cleaning by detecting the user's standing-up signal.

[0119] A detection device may be installed on the toilet seat. When the user sits on the toilet seat, the state of the detection device changes, and thereby it can be confirmed that the toilet is in a use state. When the user finishes using and leaves the toilet seat, the state of the detection device also changes, and thereby it can be confirmed that the toilet is in a waiting state for cleaning.

[0120] In one example, the sitting signal and the standing signal include gravity signals. In this case, the detection device is provided with a gravity sensor, and the state of the toilet can be confirmed by detecting the change in the magnitude of gravity generated when the user sits or stands up.

[0121] In another example, the sitting signal and the standing signal include infrared signals. In this case, the detection device is provided with an infrared sensor, and the state of the toilet can be confirmed by detecting the change in the infrared signal generated when the user sits or stands up.

[0122] In one exemplary embodiment, the control method may further include receiving a cleaning instruction input from the outside.

[0123] After receiving the cleaning instruction input from the outside, control is performed so that the rim water spraying device 42 sprays water onto the pan surface of the toilet seat body 4, and a step of increasing the water seal height of the toilet is executed.

[0124] In other words, the user sends a cleaning instruction by operating (for example, pressing a remote control or a cleaning button of the toilet), and after receiving the user's instruction, the dirt discharge cleaning flow starts. In this form, it is ensured that the toilet can execute the dirt discharge cleaning flow based on the manual control of the user, and the immediate needs of the user can be satisfied.

[0125] As shown in FIG. 17, in the embodiment of the present disclosure, a dirt discharge control device is further provided, which includes a processor 504 and a memory 502 in which a computer program is stored. When the processor 504 executes the computer program, the dirt discharge control method described in any of the above embodiments is realized.

[0126] The processor may be an integrated circuit chip and has the ability to process signals. The above-mentioned processor may be a general-purpose processor, including a Central Processing Unit (abbreviated as CPU), a Network Processor (abbreviated as NP), etc., and may also be a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware modules, etc. The various methods, steps and logic block diagrams disclosed in the embodiments of the present disclosure can be realized or executed. The general-purpose processor may be a microprocessor, or the processor may be any ordinary processor, etc.

[0127] In an embodiment of the present disclosure, a toilet is further provided, which is equipped with the above-mentioned sewage discharge control device. Therefore, it has all the above beneficial effects and will not be repeatedly described here.

[0128] In any one or more of the above exemplary embodiments, the described functions can be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions can be stored as one or more instructions or codes on a computer-readable medium, or transmitted via a computer-readable medium and executed by a processing unit based on hardware. The computer-readable medium may include, for example, a computer-readable storage medium corresponding to a tangible medium such as a data storage medium, or a communication medium of any medium that facilitates the transfer of a computer program from one location to another according to a communication protocol. In this way, the computer-readable medium may generally correspond to a non-transitory tangible computer-readable storage medium, or a communication medium such as a signal or a carrier wave. For searching for instructions, codes, and / or data structures for implementing the techniques described in the present disclosure, the data storage medium may be any available medium accessible by one or more computers or one or more processors. A computer program product may include a computer-readable medium.

[0129] For example, without limitation, such computer-readable storage media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, flash memory, or any other medium that is used to store the desired program code in the form of instructions or data structures and is accessible by a computer. And any connection can also be referred to as a computer-readable medium. For example, when instructions are transmitted from a website, server, or other remote source using coaxial cables, optical fiber cables, twisted pairs, digital subscriber lines (DSL), or wireless technologies such as infrared, radio stations, and microwaves, coaxial cables, optical fiber cables, twin lines, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of the medium. However, as should be understood, computer-readable storage media and data storage media do not include connections, carrier waves, signals, or other transient (transitory) media, but are directed to non-transitory tangible storage media. As used herein, disks and optical disks include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, or Blu-ray disks, etc. Disks typically magnetically reproduce data, and optical disks optically reproduce data using a laser. The above combinations should also be included within the scope of computer-readable media.

[0130] For example, instructions may be executed by one or more processors such as one or more digital signal processors (DSPs), general-purpose microprocessors, application-specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated logic circuits or discrete logic circuits. Thus, as used herein, the term "processor" may refer to either the foregoing structure or any other structure suitable for implementing the techniques described herein. Or, in some aspects, the functionality described herein may be provided within dedicated hardware and / or software modules configured for encoding and decoding, or may be incorporated within a combined codec. And the foregoing techniques may be implemented entirely in one or more circuits or logic devices.

[0131] The technical solutions of the embodiments of the present disclosure can be implemented in a wide variety of devices or apparatuses, including wireless mobile phones, integrated circuits (ICs), or sets of ICs (e.g., chip sets). In the embodiments of the present disclosure, various components, modules, or units are described to emphasize the functional aspects of the apparatuses installed to execute the described techniques, but are not necessarily implemented by different hardware units. Instead, as described above, the various units may be combined within codec hardware units or provided in combination with appropriate software and / or firmware by a set of interoperable hardware units (including the one or more processors described above).

[0132] In the description of the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "one side", "opposite side", "one end", "the other end", "side", "opposite", "square", "periphery", "square structure", etc. is based on the orientation or positional relationship shown in the drawings, and is merely for facilitating the description of the embodiments of the present disclosure and simplifying the description, and does not indicate or imply that the structure pointed to has a specific orientation, is constructed and operates in a specific orientation, and thus is not understood to limit the present disclosure.

[0133] In the description of the embodiments of the present disclosure, unless otherwise clearly defined and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "attachment", "assembly" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integrated connection. The terms "attachment", "connection", "fixed connection" may be a direct connection, an indirect connection via an intermediate medium, or an internal communication between two components. Those skilled in the art can understand the meaning of the above terms in the embodiments of the present disclosure according to specific situations.

[0134] The above are the embodiments disclosed in the embodiments of the present disclosure. However, the above content is the embodiment used to facilitate the understanding of the present disclosure and is not for limiting the present disclosure. Those skilled in the art can make any modifications and changes to the embodiments and details without departing from the spirit and scope disclosed in the present disclosure. However, the patent protection scope of the present disclosure shall be in accordance with the scope of the appended patent claims.

Description of Reference Numerals

[0135] 1 Sewage discharge pipe, 11 Pipe body, 111 Cylindrical part, 1111 First plate part, 1112 Second plate part, 1113 Third plate part, 1114 Fourth plate part, 1115 Curved plate, 112 Bottom sealing part, 113 Sewage suction inlet, 114 Sewage discharge outlet, 115 Overflow port, 12 Rotating connection part, 13 Connection boss 2 Sewage discharge box, 21 Box body, 211 Sewage inlet, 22 Box lid, 221 Connection hole, 24 Sewage outlet, 25 Sealing ring, 26 First sealing component, 27 Second sealing component 3 Driving device 4 Toilet seat body, 41 Basin cavity, 411 Sewage discharge outlet, 42 Rim water discharge device, 43 Flow detection device 5 Shifter 502 Memory, 504 Processor

Claims

1. A waste discharge pipe, comprising a pipe body, wherein a waste suction port, a waste discharge port and an overflow port are provided on the pipe body, the directions of the waste discharge port and the waste suction port are different, the waste suction port is installed to communicate with the waste discharge outlet of the toilet seat body, and the pipe body is installed so as to be rotatable between an initial position and a waste discharge position around the central axis of the waste suction port with respect to the toilet seat body. In a state where the pipe body is in the initial position, the opening of the waste discharge port faces upward, the overflow port is located below the waste discharge port and above the waste suction port. The waste discharge pipe.

2. One end of the pipe body forms the waste discharge port, the other end of the pipe body is provided to be blocked, and the waste suction port is provided on the side wall of the pipe body. The waste discharge pipe according to claim 1.

3. The pipe body includes a cylindrical portion and a bottom sealing portion. One end of the cylindrical portion forms the waste discharge port, the waste suction port is provided on the side wall of the cylindrical portion and extends to the other end of the cylindrical portion. The bottom sealing portion is connected to the other end of the cylindrical portion and seals the other end of the cylindrical portion. The waste discharge pipe according to claim 2.

4. The bottom sealing portion is recessed in a direction away from the waste discharge port, and the maximum distance between the bottom sealing portion and the waste discharge port is made larger than the maximum distance between the waste suction port and the waste discharge port. The waste discharge pipe according to claim 3.

5. The cylindrical portion includes a first plate portion, a second plate portion, a third plate portion and a fourth plate portion that are sequentially connected end to end along its circumferential direction. The first plate portion is a first flat plate, and the waste suction port is provided on the first plate portion. The waste discharge pipe according to claim 3.

6. During the process of the waste discharge pipe rotating from the initial position to the waste discharge position, it rotates to the side where the fourth plate portion is located. The second plate portion is a second flat plate, and the third plate portion is an arc-shaped plate that curves in a direction away from the first plate portion. The fourth plate portion includes a third flat plate connected to the third plate portion and a curved plate connected to the first plate portion. Along the direction approaching the waste discharge port, the curved plate curves and recesses in a direction approaching the second plate portion and the third plate portion. The waste discharge pipe according to claim 5.

7. The overflow port is provided on the second plate portion. The waste discharge pipe according to claim 6.

8. The dirt discharge pipe according to claim 6, wherein the second flat plate and the third flat plate extend while inclining in a direction approaching each other along a direction from the first plate portion toward the third plate portion.

9. The dirt discharge pipe according to claim 5, wherein the first plate portion, the second plate portion, the third plate portion, and the fourth plate portion are smoothly connected.

10. The dirt discharge pipe according to any one of claims 3 to 9, wherein the diameter of the dirt suction port is larger than half the length of the cylindrical portion.

11. The dirt discharge pipe according to any one of claims 1 to 9, wherein, in a state where the dirt discharge pipe is in the initial position, the height of the overflow port is in the range of 2 mm to 10 mm, and the width of the overflow port is in the range of 5 mm to 30 mm.

12. The dirt discharge pipe according to any one of claims 1 to 9, wherein the minimum distance between the overflow port and the central axis of the dirt suction port is in the range of 70 mm to 116 mm.

13. The dirt discharge pipe according to any one of claims 1 to 9, wherein the central axis of the dirt suction port is orthogonal to the central axis of the dirt discharge port.

14. The dirt discharge pipe according to any one of claims 1 to 9, further comprising a rotary connection portion, wherein the rotary connection portion is connected to the pipe body and is installed so as to be connected to a drive device for driving the pipe body to rotate about the central axis of the dirt suction port.

15. The dirt discharge pipe according to any one of claims 1 to 9, further comprising a connection boss, wherein the connection boss is located outside the dirt suction port and is connected to the outer wall of the pipe body, and the inner diameter of the connection boss is larger than the diameter of the dirt suction port.

16. A dirt discharge system, comprising: a dirt discharge box; the dirt discharge pipe according to any one of claims 1 to 15, at least partially located in the dirt discharge box and rotatably connected to the dirt discharge box; and a drive device connected to the dirt discharge pipe and installed so as to drive the dirt discharge pipe to rotate with respect to the dirt discharge box.

17. A toilet, comprising: a toilet seat body provided with a basin cavity and a dirt discharge outlet provided in the basin cavity; and the dirt discharge system according to claim 16, attached to the toilet seat body and having a dirt suction port communicating with the dirt discharge outlet.

18. The toilet according to claim 17, wherein the dirt discharge box is arranged along the vertical direction.

19. A rim water spraying device is provided on the toilet seat body, and the toilet further comprises a flow rate detection device installed to detect the water flow rate of the rim water spraying device. The toilet according to claim 17 or 18.

20. A method for controlling the discharge of dirt, which is applied to a toilet. The toilet comprises a toilet seat body, a rim water spraying device and a dirt discharge pipe. The dirt discharge pipe is provided with a dirt suction port, a dirt discharge port and an overflow port. The dirt suction port communicates with the dirt discharge port of the toilet seat body. The dirt discharge pipe is installed to be rotatable between an initial position and a dirt discharge position relative to the toilet seat body. When the dirt discharge pipe is in the initial position, the overflow port is located below the dirt discharge port and above the dirt suction port. The water surface level of the toilet aligns with the lowest point of the overflow port. The method for controlling the discharge of dirt comprises: Based on the dirt discharge pipe being in the initial position, controlling the rim water spraying device to spray water onto the pan surface of the toilet seat body to increase the water seal height of the toilet; For discharging dirt, controlling the dirt discharge pipe to rotate downward from the initial position to the dirt discharge position. A method for controlling the discharge of dirt.

21. After the process of controlling the dirt discharge pipe to rotate downward from the initial position to the dirt discharge position for discharging dirt, the method for controlling the discharge of dirt further comprises: Controlling the dirt discharge pipe to reset to the initial position; Controlling the rim water spraying device to continue spraying water onto the pan surface of the toilet seat body to form a water seal in the toilet and complete one dirt discharge cycle. The method for controlling the discharge of dirt according to claim 20.

22. Controlling the rim water spraying device to continue spraying water onto the pan surface of the toilet seat body to form a water seal in the toilet means: Controlling the rim water spraying device to continue spraying water onto the pan surface of the toilet seat body until the water surface in the toilet is higher than the lowest point of the overflow port, and then turning off the rim water spraying device so that the water surface in the toilet aligns with the lowest point of the overflow port due to overflow, thereby forming the water seal. The method for controlling the discharge of dirt according to claim 21.

23. Controlling the rim water spraying device to continue spraying water onto the pan surface of the toilet seat body until the water surface in the toilet is higher than the lowest point of the overflow port, and then turning off the rim water spraying device means: ​ When the waste discharge pipe is reset to the initial position, start the make-up water timing, and when the make-up water time length reaches the set time length, turn off the rim water spraying device, or The method for controlling waste discharge according to claim 22, comprising starting to detect the water discharge amount of the rim water spraying device when the water discharge amount of the rim water spraying device reaches the set water discharge amount when the waste discharge pipe is reset to the initial position, and turning off the rim water spraying device.

24. In one waste discharge cycle, after the rim water spraying device is started, it continues to discharge water until it is turned off. The method for controlling waste discharge according to any one of claims 21 to 23.

25. In one waste discharge cycle, Before the waste discharge pipe starts to rotate, the start time length of the rim water spraying device is within the range of 5 s to 6 s, The time length from the start of rotation of the waste discharge pipe to the start of the reset rotation of the waste discharge pipe is within the range of 3 s to 8 s, The method for controlling waste discharge according to any one of claims 21 to 23, wherein the time length from the start of the reset rotation of the waste discharge pipe to the turn-off of the rim water spraying device is within the range of 4 s to 10 s.

26. After being energized, controlling the waste discharge pipe to rotate from the position before energization to the initial position, and Further comprising controlling the rim water spraying device to spray water on the pot surface of the toilet seat body, forming a water seal in the toilet and entering a standby state. The method for controlling waste discharge according to any one of claims 20 to 23.

27. The method for controlling waste discharge according to any one of claims 20 to 23 further comprises confirming that the toilet is in a use state or a cleaning standby state, and performing a step of controlling the rim water spraying device to spray water on the pot surface of the toilet seat body to increase the water seal height of the toilet.

28. In the step of confirming that the toilet is in a use state or a cleaning standby state, it is confirmed that the toilet is in a use state by detecting the user's sitting signal, and it is confirmed that the toilet is in a cleaning standby state by detecting the user's standing-up signal. The method for controlling waste discharge according to claim 27.

29. Further comprising receiving a cleaning instruction input from the outside, After receiving a cleaning instruction input from the outside, controlling the rim water discharge device to discharge water onto the pot surface of the toilet seat body, and executing a step of increasing the water seal height of the toilet, the dirt discharge control method according to any one of claims 20 to 23.

30. Rotating from the initial position to the dirt discharge position, and the rotation angle of the dirt discharge pipe is within the range of 100° to 135°, the dirt discharge control method according to any one of claims 20 to 23.

31. A dirt discharge control device comprising a processor and a memory storing a computer program, and when the processor executes the computer program, realizing the steps of the dirt discharge control method according to any one of claims 20 to 30.

32. A toilet comprising the dirt discharge control device according to claim 31.

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