Closestool and blowdown device thereof

Abstract

The invention discloses a sewage discharging device of a closestool and the closestool, and relates to the technical field of closestools, and the sewage discharging device of the closestool comprises a pipeline main body which is provided with a sewage discharging opening used for being communicated with a sewage containing cavity of a closestool body, and a main sewage discharging pipeline and an auxiliary sewage discharging pipeline which are respectively communicated with the sewage discharging opening, the main blow-off pipeline is located at the bottom of the pipeline body, and the inlet end of the auxiliary blow-off pipeline is higher than the main blow-off pipeline. The switching mechanism is used for connecting or disconnecting the main blow-off pipeline, so that the blow-off device of the closestool at least has a main blow-off state in which blow-off is carried out through the main blow-off pipeline and an auxiliary blow-off state in which blow-off is carried out through the auxiliary blow-off pipeline; and in the combined pollution discharge state, pollution discharge is performed through the main pollution discharge pipeline and the auxiliary pollution discharge pipeline at the same time. According to the technical scheme provided by the invention, the flushing noise during sewage discharge of the closestool can be reduced, and the sewage discharge capacity of the closestool is improved.

Description

Technical Field

[0001] This invention relates to the field of toilet technology, and in particular to a toilet flushing device and a toilet. Background Technology

[0002] Traditional siphon toilets typically clean the ceramic bowl by spraying water from the rim, and then expel waste through the jet nozzle. The siphon effect is achieved by utilizing the S-curve of the ceramic bowl. However, because siphon toilets primarily rely on a large jet of water to force waste into the S-curve, they generate significant flushing noise and the convoluted waste path can result in insufficient flushing capacity, especially when dealing with large or heavy amounts of waste. Summary of the Invention

[0003] The main objective of this invention is to provide a toilet flushing device and a toilet that can reduce flushing noise during toilet flushing and improve the toilet's flushing capacity.

[0004] To achieve the above objectives, the present invention provides a toilet flushing device comprising:

[0005] The pipe body has a drain outlet for communicating with the soiled chamber of the toilet body, and a main drain pipe and an auxiliary drain pipe respectively connected to the drain outlet. The main drain pipe is located at the bottom of the pipe body, and the inlet end of the auxiliary drain pipe is set higher than the main drain pipe.

[0006] A switching mechanism is provided to connect or disconnect the main sewage pipe so that the toilet's sewage discharge device has at least a main sewage discharge state through the main sewage pipe, an auxiliary sewage discharge state through the auxiliary sewage pipe, and a combined sewage discharge state through both the main sewage pipe and the auxiliary sewage pipe.

[0007] In one embodiment, the auxiliary sewage pipe has a water storage section, which can store water when the main sewage pipe is disconnected, so that the toilet's sewage discharge device also has a water seal state that forms a water seal at the sewage outlet.

[0008] In one embodiment, the main body of the pipe further has a buffer cavity communicating with the sewage outlet. The buffer cavity has a first branch port communicating with the main sewage pipe and a second branch port communicating with the auxiliary sewage pipe. The first branch port is located at the bottom of the buffer cavity, and the second branch port is set higher than the first branch port. The main sewage pipe extends downward from the first branch port, and the auxiliary sewage pipe extends upward at an angle from the second branch port.

[0009] In one embodiment, the inner diameter of the main sewage pipe is not less than 55 mm.

[0010] In one embodiment, the toilet's sewage discharge device further includes a siphon bend communicating with the outlet end of the auxiliary sewage discharge pipe. The siphon bend has an upwardly curved suction section from the auxiliary sewage discharge pipe and a downwardly extending discharge section from the end of the suction section away from the auxiliary sewage discharge pipe.

[0011] In one embodiment, the toilet's sewage discharge device further includes a lower sewage discharge pipe located below the main pipe body, with the outlet end of the main sewage discharge pipe and the outlet end of the auxiliary sewage discharge pipe respectively connected to the lower sewage discharge pipe.

[0012] In one embodiment, the drain pipe is integrally formed into the toilet body;

[0013] Alternatively, the toilet's sewage discharge device may further include a housing, which is used to enclose an installation space with the toilet body for accommodating the main pipe body, and at least a portion of the lower sewage pipe is constructed from the housing.

[0014] In one embodiment, the switching mechanism includes:

[0015] A sealing element, movably installed on the pipe body, the sealing element having an open position for opening the main sewage pipe and a sealing position for blocking the main sewage pipe; and

[0016] A driving component, which drives the sealing element to switch between the open position and the sealing position.

[0017] In one embodiment, the switching mechanism further includes a sealing element disposed on the plugging element and / or the pipe body. When the plugging element is in the plugging position, the sealing element is used to seal the plugging element and the pipe body.

[0018] In one embodiment, the plugging member is slidably mounted on the pipe body. The plugging member has a plurality of teeth arranged along its sliding direction. The driving assembly includes a first driving member and a gear drivenly connected to the first driving member. The gear meshes with the teeth of the plugging member. The first driving member is used to drive the gear to rotate, thereby causing the plugging member to slide between the open position and the plugging position.

[0019] In one embodiment, the sealing element is rotatably connected to the pipe body via a rotating shaft;

[0020] The drive assembly includes a second drive member and a coupling. The output end of the second drive member is connected to the rotating shaft through the coupling. The second drive member is used to drive the rotating shaft to rotate, thereby causing the sealing member to flip and switch between the open position and the sealing position.

[0021] Alternatively, the drive assembly includes a third drive member and a pull rod, one end of the pull rod being connected to the sealing member, and the other end of the pull rod being connected to the output end of the third drive member. The third drive member is used to drive the pull rod to reciprocate along the axial direction, thereby causing the sealing member to flip and switch between the open position and the sealing position around the rotation axis.

[0022] In one embodiment, the plugging member is rotatably disposed within the pipe body, the plugging member has a flow passage, the driving assembly is drivenly connected to the plugging member to drive the plugging member to rotate, when the plugging member is in the open position, the flow passage is connected to the main sewage pipe, and when the plugging member is in the blocked position, the plugging member blocks the main sewage pipe.

[0023] The present invention also proposes a toilet, comprising:

[0024] A toilet body, the toilet body having a soil-receiving cavity; and

[0025] The toilet's drain device as described above has its drain outlet connected to the waste-holding chamber.

[0026] The technical solution of this invention constructs two parallel sewage discharge channels—a main sewage discharge pipe and an auxiliary sewage discharge pipe—within the main pipe body. A switching mechanism allows the main sewage discharge pipe to be connected or disconnected, enabling the sewage discharge device to switch between multiple states, including main sewage discharge, auxiliary sewage discharge, and combined sewage discharge. The main sewage discharge pipe is located at the bottom of the main pipe body, facilitating sewage discharge. The inlet of the auxiliary sewage discharge pipe is higher than that of the main sewage discharge pipe, requiring a certain water pressure to discharge sewage through it. This allows for a primary sewage discharge method using the main sewage discharge pipe's downward direct discharge, supplemented by the auxiliary sewage discharge pipe, and also enables combined sewage discharge from both pipes. Because this sewage discharge device utilizes the main sewage discharge pipe's downward direct discharge as the primary method, during sewage discharge, gravity, combined with water replenishment from the top of the toilet bowl, rapidly drains the sewage from the sludge chamber through the main sewage discharge pipe. Because the main drain pipe does not rely on a siphon effect for waste disposal, it reduces flushing noise. Furthermore, the direct discharge method of the main drain pipe allows for a simpler design and a larger diameter, resulting in a shorter discharge path and faster, more efficient waste disposal compared to siphon-based systems. In some scenarios, the main and auxiliary drain pipes can be used simultaneously for combined discharge, further enhancing the toilet's flushing capacity. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 An exploded view of the first embodiment of the toilet flushing device provided by the present invention;

[0029] Figure 2 This is a cross-sectional schematic diagram of the toilet's sewage discharge device in the first embodiment;

[0030] Figure 3 This is another cross-sectional schematic diagram of the toilet's sewage discharge device in the first embodiment;

[0031] Figure 4 This is a schematic diagram of the toilet's sewage discharge device in the first embodiment discharging sewage through the main sewage pipe;

[0032] Figure 5 This is a schematic diagram of the toilet's sewage discharge device in the first embodiment discharging sewage through an auxiliary sewage pipe;

[0033] Figure 6 An exploded view of the second embodiment of the toilet flushing device provided by the present invention;

[0034] Figure 7 This is a cross-sectional schematic diagram of the toilet's sewage discharge device in the second embodiment;

[0035] Figure 8 An exploded view of the third embodiment of the toilet flushing device provided by the present invention;

[0036] Figure 9 This is a cross-sectional schematic diagram of the toilet's sewage discharge device in the third embodiment;

[0037] Figure 10 A cross-sectional schematic diagram of the fourth embodiment of the toilet's sewage discharge device provided by the present invention;

[0038] Figure 11 An exploded view of the fifth embodiment of the toilet flushing device provided by the present invention;

[0039] Figure 12 This is a cross-sectional schematic diagram of the toilet's sewage discharge device in the fifth embodiment;

[0040] Figure 13 This is a schematic diagram showing the main sewage pipe connection of the toilet's sewage discharge device in the fifth embodiment;

[0041] Figure 14 This is a schematic diagram of the main sewage pipe partition of the toilet's sewage discharge device in the fifth embodiment;

[0042] Figure 15 An exploded view of the sixth embodiment of the toilet flushing device provided by the present invention;

[0043] Figure 16 This is a cross-sectional schematic diagram of the toilet's sewage discharge device in the sixth embodiment;

[0044] Figure 17 This is a cross-sectional schematic diagram of the seventh embodiment of the toilet sewage discharge device provided by the present invention.

[0045] Explanation of icon numbers:

[0046] 10. Toilet body; 101. Sewage chamber;

[0047] 21. Pipeline body; 21a. First main body section; 21b. Second main body section; 211. Sewage outlet; 212. Main sewage pipe; 213. Auxiliary sewage pipe; 214. Buffer chamber; 22. Switching mechanism; 221. Sealing component; 2211. Gear; 2212. Flow channel; 222. Drive assembly; 2221. First drive component; 2222. Gear; 2223. Second drive component; 2224. Coupling; 2225. Third drive component; 2226. Tie rod; 223. Rotating shaft; 224. Seal; 225. Bracket; 23. Siphon bend; 24. Lower sewage pipe; 25. Housing; 251. First housing section; 252. Second housing section;

[0048] 30. Toilet seat assembly;

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0052] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0053] Traditional siphon toilets typically clean the ceramic bowl by spraying water from the flushing nozzle and expelling waste through the jet nozzle. They utilize the S-curve of the ceramic bowl to create a siphon effect for flushing. However, because siphon toilets rely on a large jet of water to force waste into the S-curve, they generate significant flushing noise. Furthermore, the siphon effect requires a small diameter S-curve pipe, resulting in a winding drainage path and potentially insufficient flushing capacity, especially with large amounts of waste. Additionally, the S-curve of traditional siphon toilets is usually integrally molded with the ceramic toilet body, leading to complex and costly manufacturing processes. Moreover, installation limitations such as bathroom relocation fixtures and other irregularly shaped pipes can hinder siphon flow and drainage, making them unsuitable for many environments.

[0054] This invention proposes a toilet flushing device. By optimizing the structure of the flushing device, the flushing noise during toilet flushing can be reduced, and the flushing capacity of the toilet can be improved. Furthermore, it can simplify the toilet manufacturing process to a certain extent, reduce costs, and is not limited by installation conditions, thus improving the ease of toilet installation.

[0055] Please see Figures 1 to 3 In one embodiment of the present invention, the toilet's sewage discharge device includes a pipe body 21 and a switching mechanism 22. The pipe body 21 has a sewage outlet 211 for communicating with the sewage chamber 101 of the toilet body 10, and a main sewage discharge pipe 212 and an auxiliary sewage discharge pipe 213 respectively connected to the sewage outlet 211. The main sewage discharge pipe 212 is located at the bottom of the pipe body 21, and the inlet end of the auxiliary sewage discharge pipe 213 is set higher than the main sewage discharge pipe 212. The switching mechanism 22 is used to connect or disconnect the main sewage discharge pipe 212, so that the toilet's sewage discharge device has at least a main sewage discharge state through the main sewage discharge pipe 212, an auxiliary sewage discharge state through the auxiliary sewage discharge pipe 213, and a combined sewage discharge state through both the main sewage discharge pipe 212 and the auxiliary sewage discharge pipe 213.

[0056] The toilet's flushing device (hereinafter referred to as the flushing device) can be applied to a toilet. For example, the toilet includes a toilet body 10 and a flushing device. The toilet body 10 may be made of ceramic material and has a soiled cavity 101. The drain outlet 211 of the flushing device is connected to the soiled cavity 101. The toilet body 10 may also be equipped with a flushing device for flushing water into the soiled cavity 101, and a toilet seat assembly 30 for covering the top opening of the soiled cavity 101. During flushing, the flushing device can be used to flush the soiled cavity 101 of the toilet, allowing the sewage in the soiled cavity 101 to enter the flushing device through the drain outlet 211. The flushing device then discharges the sewage into the sewer system, thereby realizing the toilet's flushing function.

[0057] In this embodiment, the sewage discharge device can be installed inside the toilet body 10. The sewage discharge device includes a pipe body 21 and a switching mechanism 22. The pipe body 21 forms a main sewage discharge pipe 212 and an auxiliary sewage discharge pipe 213 for sewage discharge. The switching mechanism 22 is used to connect or disconnect the main sewage discharge pipe 212. The pipe body 21 can be a one-piece structure or it can be assembled from multiple main body parts. The pipe body 21 has a sewage discharge port 211, which is connected to the sewage holding chamber 101 of the toilet body 10, so that the sewage in the sewage holding chamber 101 can be discharged into the pipe body 21 through the sewage discharge port 211. The pipe body 21 also has a main sewage discharge pipe 212 and an auxiliary sewage discharge pipe 213, so that the sewage entering the pipe body 21 can be discharged through the main sewage discharge pipe 212 and / or the auxiliary sewage discharge pipe 213. The main sewage pipe 212 and the auxiliary sewage pipe 213 can be directly connected to the toilet's sewer system, or indirectly connected through the lower sewage pipe 24 located inside the toilet body 10, as long as sewage can be discharged. The main sewage pipe 212 is located at the bottom of the pipe body 21, meaning its position is relatively low, allowing sewage entering the pipe body 21 from the drain outlet 211 to be discharged along the main sewage pipe 212 under gravity, making discharge relatively easy and thus the primary sewage discharge method. The inlet end of the auxiliary sewage pipe 213 is higher than the main sewage pipe 212, requiring a certain water pressure to discharge sewage through the auxiliary sewage pipe 213, thus serving as an auxiliary sewage discharge method.

[0058] The switching mechanism 22 is used to connect or disconnect the main sewage pipe 212, enabling the sewage discharge device to switch between multiple states, such as main sewage discharge, auxiliary sewage discharge, and combined sewage discharge. For example, Figure 4 As shown, when the main sewage pipe 212 is open, if the sewage pressure is relatively low, the sewage in the sludge chamber 101 enters the pipe body 21 through the sewage outlet 211 and is then discharged directly downwards through the main sewage pipe 212. At this time, the sewage discharge device is in the main sewage discharge state. When the main sewage pipe 212 is open, if the sewage pressure is relatively high, most of the sewage in the sludge chamber 101 enters the pipe body 21 and is discharged directly downwards through the main sewage pipe 212. Simultaneously, a small portion of the sewage can be discharged through the auxiliary sewage pipe 213. At this time, the sewage discharge device is in the combined sewage discharge state. Figure 5As shown, when the main sewage pipe 212 is interrupted, the sewage in the sewage chamber 101 enters the main pipe body 21 through the sewage outlet 211. With the application of a certain sewage pressure, the sewage can also be discharged through the auxiliary sewage pipe 213. At this time, the sewage discharge device is in auxiliary sewage discharge mode. Furthermore, in practical applications, there may be malfunctions in the switching mechanism 22 or power outages that prevent the main sewage pipe 212 from being connected. In such cases, the auxiliary sewage pipe 213 can also be used for sewage discharge to ensure that the toilet's sewage discharge function is not affected.

[0059] The technical solution of this invention constructs two parallel sewage discharge channels, a main sewage discharge pipe 212 and an auxiliary sewage discharge pipe 213, in the pipe body 21. A switching mechanism 22 connects or disconnects the main sewage discharge pipe 212, allowing the sewage discharge device to switch between multiple states, including main sewage discharge, auxiliary sewage discharge, and combined sewage discharge. The main sewage discharge pipe 212 is located at the bottom of the pipe body 21, making sewage discharge relatively easy. The inlet end of the auxiliary sewage discharge pipe 213 is positioned higher than the main sewage discharge pipe 212, requiring a certain water pressure to discharge sewage through the auxiliary sewage discharge pipe 213. Thus, the main sewage discharge pipe 212 can discharge downwards as the primary sewage discharge method, while the auxiliary sewage discharge pipe 213 can discharge as an auxiliary method. Simultaneously, combined sewage discharge from both the main sewage discharge pipe 212 and the auxiliary sewage discharge pipe 213 can be achieved. Since the sewage discharge device of this technical solution utilizes the main sewage pipe 212 for downward direct discharge as the primary sewage discharge method, during sewage discharge, under the action of gravity, coupled with the water replenishment from the top of the toilet, the sewage in the sewage chamber 101 can be quickly discharged through the main sewage pipe 212. Because the main sewage pipe 212 does not require the use of a siphon effect for sewage discharge, the flushing noise of the toilet can be reduced. Furthermore, by using the direct discharge method of the main sewage pipe 212, its structure can be designed to be simpler, and its diameter can be larger, resulting in a shorter sewage discharge path and a faster sewage discharge speed and stronger sewage discharge capacity compared to siphon-type sewage discharge. In some scenarios, the main sewage pipe 212 and the auxiliary sewage pipe 213 can also be used simultaneously for combined sewage discharge, further enhancing the toilet's sewage discharge capacity.

[0060] Furthermore, in this embodiment, the toilet's sewage discharge device does not primarily use a siphon system. Therefore, during toilet installation, there is no need to consider the impact of installation conditions on whether the siphon can create negative pressure during sewage discharge. Consequently, installation conditions such as offset devices and other irregularly shaped pipes are not required, and the installation is unrestricted, improving installation convenience. Moreover, during manufacturing, there is no need to integrally form an S-shaped bend on the toilet body 10, simplifying the manufacturing process and reducing costs.

[0061] like Figure 17As shown, in one embodiment, the auxiliary sewage pipe 213 has a water storage section. When the main sewage pipe 212 is disconnected, the water storage section can store water so that the toilet's sewage device also has a water seal state that forms a water seal at the sewage outlet 211.

[0062] In this embodiment, the auxiliary sewage pipe 213 has a water storage section. The outlet of the water storage section is generally higher than the sewage outlet 211. For example, the auxiliary sewage pipe 213 can be inclined upward to form a water storage section, so that a certain amount of water can be stored in the water storage section of the auxiliary sewage pipe 213, so that a water seal can be formed at the sewage outlet 211. When sewage is not required, the main sewage pipe 212 is shut off, the sewage device is in a water-sealed state, and there will be a certain amount of water in the sewage chamber 101 of the toilet body 10 and the auxiliary sewage pipe 213. The sewage outlet 211 can be sealed by water, thus preventing the odor from the internal pipes of the sewage device and the toilet pipes from being discharged into the toilet body 10 through the sewage outlet 211, thereby playing a role in isolating odors.

[0063] like Figure 3 and Figure 17 As shown, in some embodiments, the main body of the pipe 21 also has a buffer cavity 214 communicating with the drain outlet 211. The buffer cavity 214 has a first diversion port communicating with the main drain pipe 212 and a second diversion port communicating with the auxiliary drain pipe 213. The first diversion port is located at the bottom of the buffer cavity 214, and the second diversion port is set higher than the first diversion port. The main drain pipe 212 extends downward from the first diversion port, and the auxiliary drain pipe 213 extends upward at an angle from the second diversion port.

[0064] In this embodiment, the drain outlet 211 is connected to the main drain pipe 212 and the auxiliary drain pipe 213 via the buffer chamber 214. During sewage discharge, the sewage in the sludge-containing chamber 101 first enters the buffer chamber 214 through the drain outlet 211, and then enters the main drain pipe 212 through the first diversion port, or enters the auxiliary drain pipe 213 through the second diversion port. The first diversion port is located at the bottom of the buffer chamber 214. The main drain pipe 212 can be a straight pipe extending downward from the first diversion port. When the main drain pipe 212 is open, the sewage in the buffer chamber 214 can be discharged directly downward from the first diversion port through the main drain pipe 212 under the action of gravity. The second branch outlet is positioned higher than the first branch outlet, and the auxiliary sewage pipe 213 extends upwards from the second branch outlet at an angle. Thus, when the main sewage pipe 212 is interrupted and sewage discharge is not required, the auxiliary sewage pipe 213 can store a certain amount of water, forming a water seal at the discharge outlet 211 to isolate odors. When the main sewage pipe 212 is interrupted and sewage discharge is required, a certain water pressure can be applied, for example, by adding water to the sludge chamber 101, allowing the water in the buffer chamber 214 to flow upwards along the auxiliary sewage pipe 213 to its outlet.

[0065] The main sewage pipe 212 is a straight pipe that discharges downwards. Since it does not require a siphon effect during sewage discharge, its inner diameter can be designed to be larger. Optionally, the inner diameter of the main sewage pipe 212 is not less than 55 mm. For example, the inner diameter of the main sewage pipe 212 (i.e., the inner ring diameter of the main sewage pipe 212) can be 55 mm, 60 mm, 65 mm, etc. In this embodiment, the larger inner diameter of the main sewage pipe 212 allows for a correspondingly shorter length, resulting in a shorter sewage travel distance. This leads to a shorter sewage discharge time compared to siphon-type sewage discharge, a faster discharge speed, and a stronger discharge capacity. Even when the excrement is large and plentiful, it can effectively remove it, ensuring efficient sewage discharge.

[0066] To further improve the toilet's sewage discharge capacity, such as Figure 3 As shown, in one embodiment, the toilet's sewage discharge device further includes a siphon bend 23 connected to the outlet end of the auxiliary sewage discharge pipe 213. The siphon bend 23 has an intake pipe section that bends upward from the auxiliary sewage discharge pipe 213, and a discharge pipe section that extends downward from the end of the intake pipe section away from the auxiliary sewage discharge pipe 213.

[0067] In this embodiment, a siphon bend 23 is connected to the outlet end of the auxiliary sewage pipe 213. The siphon bend 23 is generally S-shaped. The outlet end of the siphon bend 23 can be connected to the lower sewage pipe 24 inside the toilet body 10, or directly to the sewer system. When the sewage discharge device is in the auxiliary sewage discharge state, the main sewage pipe 212 is blocked. At this time, water can be added to the sewage chamber 101 of the toilet body 10, and sewage can also enter the siphon bend 23 from the auxiliary sewage pipe 213 and then be discharged from the siphon bend 23. Since the suction section of the siphon bend 23 is curved upward, a negative pressure can be generated in the siphon bend 23 during sewage discharge to form a siphon, which can discharge sewage more cleanly, thereby further enhancing the auxiliary sewage discharge effect and improving the sewage discharge capacity. The siphon bend 23 can be integrally formed with the pipe body 21, or the siphon bend 23 can be designed separately from the pipe body 21 and then assembled.

[0068] Optionally, the siphon bend 23 can be detachably connected to the pipe body 21. This simplifies the manufacturing process of the pipe body 21 and the siphon bend 23, and also facilitates the replacement and maintenance of either the pipe body 21 or the siphon bend 23. For example, the siphon bend 23 can be fitted onto the outer circumferential surface of the outlet end of the auxiliary sewage pipe 213 and fixed thereon.

[0069] Of course, in some embodiments, the siphon bend 23 can be omitted, and sewage can be discharged directly using the auxiliary sewage pipe 213. In this way, there is no need to add installation space for the siphon bend 23 inside the toilet body 10, which can shorten the length of the rear of the toilet body 10, making the overall length of the toilet body 10 shorter and reducing the material and manufacturing costs of the toilet body 10.

[0070] In one embodiment, the toilet's sewage discharge device further includes a lower sewage pipe 24 located below the main pipe body 21, with the outlet end of the main sewage pipe 212 and the outlet end of the auxiliary sewage pipe 213 respectively connected to the lower sewage pipe 24.

[0071] In this embodiment, the lower sewage pipe 24 is located below the main pipe body 21, while the main sewage pipe 212 is located at the bottom of the main pipe body 21. This further shortens the length of the main sewage pipe 212 and the sewage discharge path. When the toilet is flushed, the sewage in the sludge chamber 101 enters the main pipe body 21 and then enters the lower sewage pipe 24 via the main sewage pipe 212 and / or the auxiliary sewage pipe 213, and is then discharged into the sewer system from the lower sewage pipe 24. Optionally, the lower sewage pipe 24 has a first inlet connected to the outlet end of the main sewage pipe 212 and a second inlet connected to the outlet end of the auxiliary sewage pipe 213. The lower sewage pipe 24 also has a sewage outlet connected to the sewer system. When the outlet end of the auxiliary sewage pipe 213 is connected to a siphon bend 23, the outlet end of the siphon bend 23 can be connected to the lower sewage pipe 24 via the second inlet. The drain pipe 24 can be installed on the toilet body 10 and integrated with it, or it can be set as a separate part or component.

[0072] like Figure 3 As shown, in one embodiment, the lower drain pipe 24 is integrally formed into the toilet body 10. The toilet body 10 can be made of ceramic material. During the manufacturing of the ceramic body, a waste-containing cavity 101 and the lower drain pipe 24 can be integrally formed inside the toilet body 10. Optionally, the waste-containing cavity 101 is located at the top of the toilet body 10, and the lower drain pipe 24 is located at the bottom of the toilet body 10. The pipe body is installed inside the toilet body 10. The main drain pipe 212 extends vertically to communicate with the lower drain pipe 24, and the auxiliary drain pipe 213 can be connected to the lower drain pipe 24 via a siphon bend 23.

[0073] like Figure 17 As shown, in one embodiment, the toilet's sewage discharge device further includes a housing 25, which is configured with the toilet body 10 to form an installation space for accommodating the main pipe body 21, and at least a portion of the lower sewage pipe 24 is constructed from the housing 25.

[0074] In this embodiment, the housing 25 can be housed within the toilet body 10. The housing 25 and the toilet body 10 together form an installation space for accommodating the main pipe body 21, and at least a portion of the lower drain pipe 24 is constructed from the housing 25. Thus, the main drain pipe 212 and auxiliary drain pipe 213 of the main pipe body 21 can directly discharge sewage into the housing 25, and then discharge it to the bathroom's sewer system through the lower drain pipe 24. By housing the main pipe body 21 within the housing 25, external odors at the drain outlet 211 can be isolated, and sewage can be prevented from flowing out of the toilet and contaminating the bathroom. Optionally, the housing 25 includes a first housing portion 251 and a second housing portion 252 that are spliced ​​together. The first housing portion 251 is located above the second housing portion 252. The first housing portion 251 and the toilet body 10 together enclose an installation space for installing the main pipe body 21. The inner cavity of the lower housing 25 forms a lower sewage pipe 24, and the other lower sewage pipe 24 can be constructed by the toilet body 10, or a sewage pipe can be directly connected to the outlet end of the lower sewage pipe 24 constructed by the lower housing 25. In addition, in this embodiment, since the housing 25 is provided, it is not necessary to connect the siphon bend 23 to the outlet end of the auxiliary sewage pipe 213. Thus, there is no need to add installation space for the siphon bend 23 inside the toilet body 10, which can shorten the length of the rear part of the toilet body 10, thereby shortening the overall length of the toilet body 10 and reducing the material and manufacturing costs of the toilet body 10.

[0075] Based on the above embodiments, in some embodiments, the switching mechanism 22 includes a blocking component 221 and a driving component 222. The blocking component 221 is movably installed on the pipe body 21. The blocking component 221 has an open position that allows the main sewage pipe 212 to be connected, and a blocked position that blocks the main sewage pipe 212. The driving component 222 drives the blocking component 221 to switch between the open position and the blocked position.

[0076] In this embodiment, the sealing component 221 is movably installed on the pipe body 21 by means of sliding installation, rotation installation, etc., and the driving component 222 includes, but is not limited to, driving the sealing component 221 to perform linear movement, curved movement, flipping movement, etc. between the open position and the sealing position. By driving the sealing component 222 to move the sealing component 221 between the open position and the sealing position, the main sewage pipe 212 is opened or closed. The driving component 222 can be electrically connected to the control system. When no sewage discharge signal is received, the sealing component 221 is in the sealing position to close the main sewage pipe 212 and prevent external odors from entering the toilet body 10 from the main sewage pipe 212. When a sewage discharge signal is received, the driving component 222 drives the sealing component 221 to switch from the sealing position to the open position to open the main sewage pipe 212. At this time, the sewage in the sewage chamber 101 can be discharged through the main sewage pipe 212, thus realizing the automated control of the sealing component 221. In addition, when the drive component 222 malfunctions or loses power, causing the sealing component 221 to be unable to switch from the sealing position to the open position, the auxiliary drain pipe 213 can be used to drain the sewage to ensure that the toilet's sewage function is not affected.

[0077] To ensure sealing performance in non-drainage states (e.g., water-sealed states), in some embodiments, the switching mechanism 22 further includes a sealing element 224. The sealing element 224 is disposed on the plugging element 221 and / or the pipe body 21. When the plugging element 221 is in the plugging position, the sealing element 224 seals the plugging element 221 and the pipe body 21. This ensures that in non-drainage states, the plugging element 221 isolates the pipe body 21, and the mating parts of the plugging element 221 and the pipe body 21 are sealed by the sealing element 224, preventing water in the sludge chamber 101 from seeping downwards, while also providing a good odor-proof effect. The sealing element 224 can be disposed on the plugging element 221 to move with it; or, the sealing element 224 can be disposed on the pipe body 21 and fixed; or, the sealing element 224 can be provided on both the plugging element 221 and the pipe body 21. The seal 224 includes, but is not limited to, a sealing ring, a sealing sleeve, or other structures that can achieve a seal.

[0078] There are several ways in which the drive assembly 222 drives the sealing member 221 to move. For example, the sealing member 221 is slidably installed on the pipe body 21, and the drive assembly 222 is used to drive the sealing member 221 to slide and switch between the open position and the sealing position; another example is that the sealing member 221 is rotatably installed on the pipe body 21, and the drive assembly 222 is used to drive the sealing member 221 to rotate and switch between the open position and the sealing position. Several embodiments of the switching mechanism 22 are illustrated below.

[0079] like Figure 1 and Figure 2 As shown, in the first embodiment, the sealing member 221 is slidably installed on the pipe body 21. The sealing member 221 has a plurality of teeth 2211 arranged along its sliding direction. The driving assembly 222 includes a first driving member 2221 and a gear 2222 drivenly connected to the first driving member 2221. The gear 2222 meshes with the teeth 2211 of the sealing member 221. The first driving member 2221 is used to drive the gear 2222 to rotate, so as to drive the sealing member 221 to slide and switch between the open position and the sealing position.

[0080] In this embodiment, the sealing member 221 is slidably engaged with the pipe body 21. Optionally, the pipe body 21 is provided with a groove, and the sealing member 221 is slidably inserted into the groove. The sealing member 221 can be configured as a sliding plate extending along its sliding direction, and one side surface of the sliding plate is provided with multiple teeth 2211 along its sliding direction. The first driving member 2221 can be fixed to the pipe body 21 or the toilet body 10. The output end of the first driving member 2221 is connected to a gear 2222, and the gear 2222 meshes with the teeth 2211 of the sealing member 221. When the first driving member 2221 drives the gear 2222 to rotate, it can drive the sealing member 221 to reciprocate linearly between the sealing position and the open position. The sealing member 221 can be provided at the inlet end of the main sewage pipe 212, or at other positions of the main sewage pipe 212. Optionally, the sealing element 221 is located at the inlet end of the main sewage pipe 212, that is, at a position near the first branch port of the main sewage pipe 212. The first driving element 2221 includes, but is not limited to, a power component capable of torque output, such as a drive motor or a rotary cylinder. Of course, in some embodiments, the driving component 222 can also use an electromagnet drive, a motor screw, pneumatic, or hydraulic actuator to achieve the linear reciprocating motion of the sealing element 221. Optionally, the switching mechanism 22 further includes a sealing element 224 located on the sealing element 221. The sealing element 224 can slide with the sealing element 221. When the sealing element 221 is in the sealing position, the sealing element 224 seals the mating part between the sealing element 221 and the pipe body 21 to achieve a sealing effect. The sealing element 224 includes, but is not limited to, a sealing sleeve fitted onto the sealing part of the sealing element 221, or a sealing ring fitted onto the outer periphery of the sealing element 221, or the sealing element 224 can be integrally formed on the sealing element 221.

[0081] like Figure 6 and Figure 7As shown, in the second embodiment, the structure of the sealing element 221 and the driving assembly 222 is largely the same as that in the first embodiment. The main difference is that in the second embodiment, the switching mechanism 22 further includes a sealing element 224 installed on the pipe body 21, and the sealing element 224 does not slide with the sealing element 221. When the sealing element 221 is in the sealing position, the sealing element 224 seals the sealing element 221 with the mating part of the pipe body 21 to achieve a sealing effect. Optionally, the pipe body 21 is provided with a bracket 225 for installing the sealing element 224 to ensure the installation stability of the sealing element 224. To facilitate the installation of the sealing element 224 and the bracket 225, the pipe body 21 may optionally include a first main body part 21a and a second main body part 21b that are spliced ​​together. The bracket 225 is installed at the splicing part of the first main body part 21a and the second main body part 21b, and the sealing element 224 is sleeved on the outer periphery of the bracket 225.

[0082] like Figure 8 and Figure 9 As shown, in the third embodiment, the sealing member 221 is rotatably connected to the pipe body 21 via a rotating shaft 223; the drive assembly 222 includes a second drive member 2223 and a coupling 2224. The output end of the second drive member 2223 is connected to the rotating shaft 223 via the coupling 2224. The second drive member 2223 is used to drive the rotating shaft 223 to rotate, so as to drive the sealing member 221 to flip and switch between the open position and the sealing position.

[0083] In this embodiment, the sealing member 221 can be configured as a movable plate adapted to the cross-sectional shape of the main sewage pipe 212. The side edge of the sealing member 221 is connected to the rotating shaft 223 through a fixing part, and the rotating shaft 223 is rotatably connected to the pipe body 21. The output end of the second driving member 2223 is inserted into one end of the coupling 2224, and the other end of the coupling 2224 is inserted into the rotating shaft 223. The second driving member 2223 drives the coupling 2224 to rotate, which in turn drives the rotating shaft 223 to rotate, thereby causing the sealing member 221 to flip and switch between the sealing position and the open position. The second driving member 2223 includes, but is not limited to, a power component capable of torque output, such as a drive motor or a rotary cylinder. Of course, the driving assembly 222 can also drive the sealing member 221 to flip by linear push-pull or other means.

[0084] like Figure 10As shown, in the fourth embodiment, the sealing member 221 is rotatably connected to the pipe body 21 via a rotating shaft 223; the drive assembly 222 includes a third drive member 2225 and a pull rod 2226. One end of the pull rod 2226 is connected to the sealing member 221, and the other end of the pull rod 2226 is connected to the output end of the third drive member 2225. The third drive member 2225 is used to drive the pull rod 2226 to reciprocate along the axial direction, thereby causing the sealing member 221 to rotate and switch between the open position and the sealing position around the rotating shaft 223.

[0085] In this embodiment, the sealing member 221 can be configured as a movable plate adapted to the cross-sectional shape of the main sewage pipe 212. The side edge of the sealing member 221 is connected to the rotating shaft 223 through a fixing part, and the rotating shaft 223 is rotatably connected to the pipe body 21. One end of the pull rod 2226 can be hinged to the sealing member 221, and the other end is connected to the output end of the third driving member 2225. The third driving member 2225 drives the pull rod 2226 to perform linear reciprocating motion along the axial direction, thereby causing the sealing member 221 to rotate around the rotating shaft 223. The third driving member 2225 includes, but is not limited to, using electromagnets, motor screws, pneumatic, hydraulic and other methods to achieve the linear reciprocating motion of the pull rod 2226.

[0086] like Figures 11 to 14 As shown, in the fifth embodiment, the sealing member 221 is rotatably disposed inside the pipe body 21. The sealing member 221 has a flow passage 2212. The driving component 222 is drivenly connected to the sealing member 221 to drive the sealing member 221 to rotate. When the sealing member 221 is in the open position, the flow passage 2212 is connected to the main sewage pipe 212. When the sealing member 221 is in the blocked position, the sealing member 221 blocks the main sewage pipe 212.

[0087] In this embodiment, the sealing element 221 can be a sphere rotatably installed within the pipe body 21. The sealing element 221 has flow channels 2212 extending through both axial ends, and the driving assembly 222 drives the sealing element 221 to rotate. Figure 13 As shown, when the sealing component 221 is in the open position, the extension direction of the flow channel 2212 is consistent with the extension direction of the main sewage pipe 212. At this time, the main sewage pipe 212 is open, and the sewage in the sewage chamber 101 enters the pipe body 21 and can then enter the main sewage pipe 212 through the flow channel 2212, and then be discharged from the main sewage pipe 212. Figure 14As shown, when the sealing member 221 is in the sealing position, the extension direction of the flow channel 2212 intersects with the extension direction of the main sewage pipe 212. At this time, the main sewage pipe 212 can be blocked by the sealing member 221. Optionally, the sealing member 221 is provided with a connecting shaft. The drive assembly 222 includes a second drive member 2223 and a coupling 2224. The output end of the second drive member 2223 is connected to the connecting shaft of the sealing member 221 through the coupling 2224. The second drive member 2223 drives the coupling 2224 to rotate, thereby driving the sealing member 221 to rotate. The second drive member 2223 includes, but is not limited to, power components capable of torque output such as a drive motor or a rotary cylinder. Optionally, the switching mechanism 22 further includes a sealing element 224 disposed on the sealing element 221. The sealing element 224 can rotate with the sealing element 221. When the sealing element 221 is in the sealing position, the sealing element 224 seals the mating part between the sealing element 221 and the pipeline body 21 to achieve a sealing effect. The sealing element 224 includes, but is not limited to, a sealing sleeve or sealing ring sleeved around the sealing element 221, or the sealing element 224 may be integrally formed on the sealing element 221.

[0088] like Figure 15 and Figure 16 As shown, in the sixth embodiment, the structure of the sealing element 221 and the driving assembly 222 is largely the same as that in the fifth embodiment. The main difference is that in the sixth embodiment, the switching mechanism 22 further includes a sealing element 224 installed on the pipe body 21. The sealing element 224 does not rotate with the sealing element 221. When the sealing element 221 is in the sealing position, the sealing element 224 seals the mating part between the sealing element 221 and the pipe body 21 to achieve a sealing effect. Optionally, the pipe body 21 is provided with a bracket 225 for installing the sealing element 224 to ensure the installation stability of the sealing element 224. To facilitate the installation of the plugging component 221 and the sealing component 224, the pipeline body 21 may optionally include a first main body 21a and a second main body 21b. The main sewage pipe 212 is located in the first main body 21a, and the sewage outlet 211 and the auxiliary sewage pipe 213 are located in the second main body 21b. The first main body 21a and the second main body 21b are spliced ​​together to form a spherical cavity, and the plugging component 221 is the center of a sphere that is rotatably located in the spherical cavity.

[0089] In the first to sixth embodiments described above, a siphon bend 23 can be connected to the outlet end of the auxiliary sewage pipe 213 so that the auxiliary sewage pipe 213 is connected to the lower sewage pipe 24 via the siphon bend 23. When the sewage discharge device is in the auxiliary sewage discharge state, the siphon bend 23 can generate negative pressure to form a siphon, which can discharge sewage more cleanly, thereby further enhancing the effect of auxiliary sewage discharge and improving sewage discharge capacity.

[0090] like Figure 17 As shown, in the seventh embodiment, the siphon bend 23 may not be provided at the outlet end of the auxiliary sewage pipe 213 to simplify the pipe structure and save the installation space of the siphon bend 23, thereby reducing the volume of the toilet.

[0091] The present invention also proposes a toilet, which includes a toilet body 10 and a toilet drain device. The toilet body 10 has a soil-containing cavity 101, and the drain outlet 211 of the toilet drain device communicates with the soil-containing cavity 101. The specific structure of the toilet drain device is as described in the above embodiments. Since this toilet adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0092] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A toilet flushing device, characterized in that, include: The pipe body has a drain outlet for communicating with the soiled chamber of the toilet body, and a main drain pipe and an auxiliary drain pipe respectively connected to the drain outlet. The main drain pipe is located at the bottom of the pipe body, and the inlet end of the auxiliary drain pipe is set higher than the main drain pipe. A switching mechanism is provided to connect or disconnect the main sewage pipe so that the toilet's sewage discharge device has at least a main sewage discharge state through the main sewage pipe, an auxiliary sewage discharge state through the auxiliary sewage pipe, and a combined sewage discharge state through both the main sewage pipe and the auxiliary sewage pipe.

2. The toilet flushing device as described in claim 1, characterized in that, The auxiliary sewage pipe has a water storage section. When the main sewage pipe is disconnected, the water storage section can store water so that the toilet's sewage discharge device can still form a water seal at the sewage outlet.

3. The toilet flushing device as described in claim 1, characterized in that, The main body of the pipeline also has a buffer cavity connected to the sewage outlet. The buffer cavity has a first branch port connected to the main sewage pipe and a second branch port connected to the auxiliary sewage pipe. The first branch port is located at the bottom of the buffer cavity, and the second branch port is set higher than the first branch port. The main sewage pipe extends downward from the first branch port, and the auxiliary sewage pipe extends upward at an angle from the second branch port.

4. The toilet flushing device as described in claim 3, characterized in that, The inner diameter of the main sewage pipe is not less than 55 mm.

5. The toilet flushing device as described in claim 1, characterized in that, The toilet's sewage discharge device also includes a siphon bend that communicates with the outlet end of the auxiliary sewage discharge pipe. The siphon bend has an upward-curving suction section from the auxiliary sewage discharge pipe and a downward-extending discharge section from the end of the suction section away from the auxiliary sewage discharge pipe.

6. The toilet flushing device as described in claim 1, characterized in that, The toilet's sewage discharge device also includes a lower sewage pipe located below the main pipe body, with the outlet end of the main sewage pipe and the outlet end of the auxiliary sewage pipe respectively connected to the lower sewage pipe.

7. The toilet flushing device as described in claim 6, characterized in that, The drain pipe is integrally formed into the toilet body; Alternatively, the toilet's sewage discharge device may further include a housing, which is used to enclose an installation space with the toilet body for accommodating the main pipe body, and at least a portion of the lower sewage pipe is constructed from the housing.

8. The toilet flushing device according to any one of claims 1 to 7, characterized in that, The switching mechanism includes: A sealing element, movably installed on the pipe body, the sealing element having an open position for opening the main sewage pipe and a sealing position for blocking the main sewage pipe; and A driving component, which drives the sealing element to switch between the open position and the sealing position.

9. The toilet flushing device as described in claim 8, characterized in that, The switching mechanism further includes a sealing element, which is disposed on the plugging element and / or the pipe body. When the plugging element is in the plugging position, the sealing element is used to seal the plugging element and the pipe body.

10. The toilet flushing device as described in claim 8, characterized in that, The plugging member is slidably installed on the pipe body. The plugging member has a plurality of teeth arranged along its sliding direction. The driving assembly includes a first driving member and a gear drivenly connected to the first driving member. The gear meshes with the teeth of the plugging member. The first driving member is used to drive the gear to rotate so as to drive the plugging member to slide and switch between the open position and the plugging position.

11. The toilet flushing device as described in claim 8, characterized in that, The sealing component is rotatably connected to the pipe body via a rotating shaft; The drive assembly includes a second drive member and a coupling. The output end of the second drive member is connected to the rotating shaft through the coupling. The second drive member is used to drive the rotating shaft to rotate, thereby causing the sealing member to flip and switch between the open position and the sealing position. Alternatively, the drive assembly includes a third drive member and a pull rod, one end of the pull rod being connected to the sealing member, and the other end of the pull rod being connected to the output end of the third drive member. The third drive member is used to drive the pull rod to reciprocate along the axial direction, thereby causing the sealing member to flip and switch between the open position and the sealing position around the rotation axis.

12. The toilet flushing device as described in claim 8, characterized in that, The sealing element is rotatably disposed within the pipe body. The sealing element has a flow passage. The driving assembly is driven to the sealing element to drive the sealing element to rotate. When the sealing element is in the open position, the flow passage is connected to the main sewage pipe. When the sealing element is in the blocked position, the sealing element blocks the main sewage pipe.

13. A toilet, characterized in that, include: Toilet body, wherein the toilet body has a soil-containing cavity; as well as The toilet's drain device according to any one of claims 1 to 12, wherein the drain outlet of the toilet's drain device is connected to the waste-holding chamber.

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