Pedestal pan

Abstract

The pedestal pan comprises a seat body, the seat body comprises a sewage containing groove, a trap and a sewage discharging pipeline which are communicated in sequence, a sewage inlet of the sewage discharging pipeline is connected with the trap, the trap comprises a first wall deviating from the sewage discharging pipeline and a second wall located below the first wall in the gravity direction and connected with the sewage inlet, and the second wall is connected with the sewage discharging pipeline. The first wall is provided with an opening; a water outlet of the bottom flushing nozzle is arranged towards the sewage inlet through the opening, the falling point of the center line of a water column sprayed by the bottom flushing nozzle is located on the sewage discharging pipeline or the second wall, and the center line of the water outlet of the bottom flushing nozzle deflects by a first preset included angle in the gravity direction relative to the horizontal direction. By the adoption of the technical scheme, the pollution discharge effect of the pedestal pan can be optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of toilet bowl, especially a toilet bowl. BACKGROUND

[0002] With the continuous development of science and technology, people's requirements for living standards are also constantly improving, and are reflected in various aspects of life. For example, for the toilet bowl which is essential in daily life, users now not only hope that the toilet bowl can have strong cleaning ability, but also further hope that the toilet bowl is aesthetically pleasing in appearance and does not occupy too much space. However, in actual use, the miniaturized toilet bowl has exposed some problems. The most notable one is the poor flushing effect, which is often directly related to the reduction of the diameter of the drain pipe due to the size reduction of the toilet bowl.

[0003] Many miniaturized toilet bowls, in order to save space, have to compactly process the internal structure under the premise of maintaining basic functions, which includes compact design of the drain pipe, such as reducing the diameter of the drain pipe. Although the reduction of the diameter of the drain pipe meets the demand of space saving to some extent, it sacrifices the efficiency of water flow, making the water flow power insufficient during flushing, which makes it difficult to effectively remove the dirt, resulting in incomplete flushing, easy clogging and other problems. When using such a toilet bowl, users often need to flush multiple times to achieve the desired cleaning effect, which not only wastes water resources, but also greatly reduces the user experience. SUMMARY

[0004] The technical problem solved by the utility model is how to optimize the drain effect of the toilet bowl.

[0005] To solve the above technical problems, the utility model embodiment provides a toilet bowl, which comprises: a seat body comprising a pollution receiving groove, a water trap and a drain pipe which are sequentially connected, a pollution inlet of the drain pipe is connected with the water trap, the water trap comprises a first wall facing away from the drain pipe and a second wall located below the first wall in the direction of gravity and connected with the pollution inlet, and the first wall is provided with a through hole; a bottom flushing nozzle, the water outlet of the bottom flushing nozzle is arranged towards the pollution inlet through the through hole, the drop point of the center line of the water column sprayed by the bottom flushing nozzle is located on the drain pipe or the second wall, and the center line of the water outlet of the bottom flushing nozzle is deflected by a first preset angle in the direction of gravity compared with the horizontal direction.

[0006] Optionally, the first preset angle is valued from [8°, 12°].

[0007] Optionally, the distance between the drop point of the center line of the water column and the pollution inlet is less than a preset threshold.

[0008] Optionally, the preset threshold is valued from [8, 10] millimeters.

[0009] Optionally, the water storage bend has a width of [70, 80] mm in the horizontal direction.

[0010] Optionally, the water outlet of the bottom flushing nozzle is flush with the first wall.

[0011] Optionally, the toilet further comprises a mounting groove formed in the seat body, and a mounting frame mounted on the mounting groove of the seat body, the mounting frame comprising a mounting plate and at least one mounting cavity for mounting functional components, the at least one mounting cavity being integrated with the mounting plate.

[0012] Optionally, the toilet further comprises a bottom flushing pipeline connected to the bottom flushing nozzle, the bottom flushing pipeline being used for bottom flushing of the silt tank, and a flushing valve arranged in the at least one mounting cavity, the flushing valve being in fluid communication with the bottom flushing pipeline to enable water in the bottom flushing pipeline to be sprayed from the bottom flushing nozzle.

[0013] Optionally, the toilet further comprises a rim flushing pipeline used for rim flushing of the silt tank, and the flushing valve is also in fluid communication with the rim flushing pipeline to enable water used for flushing to flow to the silt tank via the flushing valve.

[0014] Optionally, the toilet further comprises a first power supply device arranged in the at least one mounting cavity, the first power supply device being configured to supply power to the flushing valve.

[0015] Optionally, the toilet further comprises a second power supply device arranged in the at least one mounting cavity, the second power supply device being connected to an external mobile power source or a power adapter.

[0016] Optionally, the at least one mounting cavity comprises a first mounting cavity and a second mounting cavity, the first mounting cavity and the second mounting cavity being respectively located on two sides of the mounting plate and integrated with the mounting plate.

[0017] Optionally, the mounting groove comprises a first mounting groove and a second mounting groove, the first mounting groove being used for mounting the first mounting cavity, and the second mounting groove being used for mounting the second mounting cavity.

[0018] Optionally, the toilet further comprises a cover assembly mounted on the seat body via the mounting frame, the mounting plate of the mounting frame being provided with a plurality of fixing columns, and the cover assembly being provided with a plurality of fixing holes in interference fit with the plurality of fixing columns, respectively.

[0019] Optionally, the plurality of fixing columns are detachably mounted on the mounting plate, and / or the positions of the plurality of fixing columns on the mounting plate are adjustable.

[0020] Optionally, at least one annular groove is arranged on each of the plurality of fixing columns, and an elastic ring is arranged in the at least one annular groove.

[0021] Optionally, the cover assembly comprises an upper cover, a seat ring and a base, the upper cover is located above the seat ring, the upper cover and the seat ring are rotatably installed to the base, and the base is provided with the plurality of fixing holes.

[0022] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0023] By adopting the technical scheme of the application, the falling point of the water column sprayed by the bottom flushing nozzle is located on the wall on the side of the sewage pipeline or the drain trap facing the gravity direction, on the one hand, the flow rate of the water column can be made larger by means of the action of gravity, and on the other hand, the wall on the side of the sewage pipeline or the drain trap near the sewage inlet facing the gravity direction is the part most prone to be blocked by dirt, and the falling point of the sprayed water column is located at this position, so that the flushing effect can be further optimized.

[0024] Further, the toilet further comprises a mounting rack, the mounting rack comprises a mounting plate and at least one mounting cavity for mounting functional components, which is conducive to integrating various functional components in the toilet. The mounting rack is directly mounted to the mounting groove of the seat body, does not occupy too much space, and provides a compact structure. The at least one mounting cavity is integrated with the mounting plate, which is conducive to realizing the modularization of the mounting rack, thereby facilitating the simple installation and disassembly of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of a toilet according to an embodiment of the utility model;

[0026] Figure 2 is Figure 1 is a sectional view of the seat body along the A-A direction;

[0027] Figure 3 is Figure 2 is a local enlarged view of the region B;

[0028] Figure 4 is Figure 1 is an exploded view of the toilet shown in the figure;

[0029] Figure 5 is Figure 1 is a structural schematic view of the base and the mounting rack of the toilet;

[0030] Figure 6 is a schematic view of an old model in a simulation calculation;

[0031] Figure 7 is a schematic view of a new model in a simulation calculation;

[0032] Figure 8 is a schematic diagram of the variation of the helicity of the water flow in the s1 plane with time in the new model and the old model of the simulation calculation;

[0033] Figure 9 is a schematic diagram of the variation of the pressure of the water flow in the s1 plane with time in the new model and the old model of the simulation calculation (positive pressure);

[0034] Figure 10 is a schematic diagram of the variation of the pressure of the water flow in the s2 plane with time in the new model and the old model of the simulation calculation (negative pressure);

[0035] Figure 11 is a table of simulation calculation data. DETAILED DESCRIPTION

[0036] As described in the background, the sewage effect of the existing miniaturized design toilet is poor.

[0037] To solve the above technical problems, the application provides a toilet, comprising: a seat body comprising a sewage receiving groove, a water trap and a sewage pipeline connected in sequence, a sewage inlet of the sewage pipeline is connected to the water trap, the water trap comprises a first wall facing away from the sewage pipeline and a second wall located below the first wall in the direction of gravity and connected to the sewage inlet, and the first wall is provided with a through hole; a bottom flushing nozzle, the water outlet of the bottom flushing nozzle is arranged towards the sewage inlet via the through hole, the landing point of the center line of the water column sprayed by the bottom flushing nozzle is located on the sewage pipeline or the wall facing the direction of gravity, and the center line of the water outlet of the bottom flushing nozzle is deflected by a first preset angle in the direction of gravity compared with the horizontal direction.

[0038] By adopting the technical scheme of the application, the landing point of the water column sprayed by the bottom flushing nozzle is located on the sewage pipeline or the wall facing the direction of gravity, which can make the flow rate of the water column greater by means of the action of gravity, and on the other hand, the sewage pipeline near the sewage inlet or the wall facing the direction of gravity of the water trap is the most prone to be blocked by sewage, and the landing point of the sprayed water column is located here to further optimize the flushing effect.

[0039] In order to make the above-mentioned purposes, characteristics and beneficial effects of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0040] Figure 1 is a schematic diagram of the toilet of an embodiment of the utility model, Figure 2 is Figure 1 is a sectional view of the seat body in the direction of A-A, Figure 3 is Figure 2 is a local enlarged view of the region B.

[0041] In combination Figures 1 to 3 The toilet 100 can comprise a seat body 10 comprising a sump 12, a trap 13 and a drain pipe 14 connected in sequence, an inlet 141 of the drain pipe 14 being connected to the trap 13, the trap 13 comprising a first wall 131 facing away from the drain pipe 14 and a second wall 132 located below the first wall 131 in a gravity direction G and connected to the inlet 141, the first wall 131 being provided with an opening 1311; a rim jet 421, a water outlet of the rim jet 421 being disposed towards the inlet 141 via the opening 1311, a center line of a water column sprayed by the rim jet 421 falling on the drain pipe 14 or the second wall 132, a center line of the water outlet of the rim jet 421 being deflected by a first preset angle r in the gravity direction G compared to a horizontal direction.

[0042] Specifically, the seat body 10 is a main structure of the toilet, and the seat body 10 comprises the sump 12, the trap 13 and the drain pipe 14 in sequence. The sump 12 is an area for temporarily storing excrement for flushing when a user uses the toilet. Further, the trap 13 is disposed between the sump 12 and the drain pipe 14. The trap 13 can play a certain water seal role to prevent odors from returning to the bathroom environment from the drain pipe 14. The drain pipe 14 is a channel for excrement to be flushed away, and the inlet 141 of the drain pipe 14 is connected to the trap 13.

[0043] Further, the trap 13 comprises the first wall 131 and the second wall 132. The first wall 131 faces away from the drain pipe 14, and the second wall 132 is located below the first wall 131 and connected to the inlet 141 of the drain pipe 14.

[0044] In some embodiments, the second wall 132 can be, for example, a bottom wall of the trap 13 in the gravity direction G.

[0045] Further, the first wall 131 is provided with the opening 1311 to install the rim jet 421 and expose the water outlet of the rim jet 421.

[0046] Further, the rim jet 421 sprays a water column in the direction of the drain pipe 14 to flush excrement.

[0047] In some embodiments, the water outlet of the rim jet 421 is disposed towards the inlet 141 through the opening 1311 in the first wall 131 of the trap 13.

[0048] Further, the landing point j of the center line of the water column sprayed by the bottom flushing nozzle 421 is located in the drain pipe 14 or on the second wall 132. In other words, the water column sprayed by the bottom flushing nozzle 421 is not directly sprayed in the horizontal direction towards the center of the sewage tank 12, but is sprayed towards the bottom wall or the second wall 132 on the side of the drain pipe 14 facing the gravity direction G where the dirt is more likely to accumulate, thereby improving the flushing efficiency.

[0049] wherein the center line of the water outlet of the bottom flushing nozzle 421 is deflected by a first preset angle r with respect to the horizontal direction along the gravity direction G. In this way, the landing point j can be ensured to be located on the bottom wall or the second wall 132 of the drain pipe 14, and at the same time, it is also helpful for the water column to better utilize the action of gravity and increase its flow rate, thereby more effectively flushing the dirt.

[0050] In some embodiments, the first preset angle r is selected from [8°, 12°]. In this way, a better flushing effect can be ensured.

[0051] In some embodiments, the distance n between the landing point j of the center line of the water column and the sewage inlet 141 is less than a preset threshold.

[0052] In some embodiments, the preset threshold is selected from [8, 10] millimeters. The specific value of the preset threshold can be related to the pipe diameter of the drain pipe 14 and the size of the water trap 13.

[0053] In some embodiments, along the horizontal direction, the width m of the water trap 13 is selected from [70, 80] millimeters. In this way, along the horizontal direction, the smaller the width of the water trap 13, the shorter the range of the water column sprayed by the bottom flushing nozzle 421, thereby reducing the flow rate loss of the water column and ensuring that the water column has sufficient thrust.

[0054] In order to verify the beneficial effects that can be achieved by the embodiments of the present application, the applicant has carried out corresponding simulation calculations.

[0055] Figure 6 is a schematic diagram of an old model in simulation calculation, Figure 7 is a schematic diagram of a new model in simulation calculation, Figure 8 is a schematic diagram of the helicity of the water flow on the s1 surface in the new model and the old model in simulation calculation, Figure 9 is a schematic diagram of the pressure of the water flow on the s1 surface in the new model and the old model in simulation calculation (positive pressure), Figure 10 is a schematic diagram of the pressure of the water flow on the s2 surface in the new model and the old model in simulation calculation (negative pressure), Figure 11 is a table of simulation data results.

[0056] In combination with Figures 6 to 11, the injection direction of the bottom flushing nozzle 421 in the old model in the simulation calculation is inclined upward, which is basically consistent with the prior art. In the new model, the injection direction of the bottom flushing nozzle 421 is inclined downward, which is basically consistent with the prior art as shown in the foregoing Figures 2 to 3 Figures 8 to 9 The yellow line in the figure is used to represent the corresponding parameter of the new model, and the blue line is used to represent the corresponding parameter of the old model.

[0057] The simulation calculation is performed through the following steps.

[0058] First, a first cross section s1 and a second cross section s2 are selected in the drain pipe 14 of the new model and the old model respectively. The first cross section s1 is located at the connection between the water trap 13 and the drain pipe 14, and the second cross section s2 is located at the highest section of the extension of the drain pipe 14.

[0059] Then, the s1 plane helicity integral (m / s), the s1 plane maximum pressure (Pa), and the s2 plane maximum pressure (Pa) of the new model and the old model are measured and calculated respectively, the images as shown in Figures 8 to 10 are drawn, and the calculation results as shown in Figure 11 are obtained.

[0060] Based on the results as shown in Figures 8 to 10 , generally, the greater the helicity and pressure values on the s1 plane, the greater the flow channel thrust. Therefore, the new model is superior to the old model. The greater the negative value of the pressure on the s2 plane, the stronger the siphon. Therefore, the siphon of the new model is superior to the old model.

[0061] From the above, it can be concluded that through the improvement of the structural parameters of the embodiment of the present application, the angle and landing point of the water column sprayed by the bottom flushing nozzle 421 installed at the inlet of the drain pipe 14 of the water trap 13 are optimized, a relatively good flow channel thrust is ensured, backflow in the pipe is reduced, and the drain effect is improved.

[0062] In some embodiments, the water outlet of the bottom flushing nozzle 421 is flush with the first wall 131, that is, the extent of the bottom flushing nozzle 421 extending from the outside of the seat body 10 into the seat body 10 does not exceed the first wall 131. In this way, it can be avoided that the bottom flushing nozzle 421 extends into the water trap 14 to affect the normal discharge of dirt, and it can also be avoided that the setting position of the bottom flushing nozzle 421 is too retracted to cause too great loss of flow rate of the water column and not enough thrust.

[0063] In some embodiments, the dirt receiving groove 12, the water trap 13, and the drain pipe 14 of the seat body 10 can all be made of ceramic material. The dirt receiving groove 12, the water trap 13, and the drain pipe 14 made of ceramic material can have smooth walls to ensure smooth discharge of dirt.

[0064] In some embodiments, reference can be made to Figure 1 ​The toilet 100 can include a seat body 10 and a cover assembly 20. The seat body 10 has a mounting groove 11 and a sewage receiving groove 12, and the mounting groove 11 is surrounded by the seat body 10. A mounting bracket 30 is used to mount the cover assembly 20 to the seat body 10. The mounting bracket 30 is directly mounted to the mounting groove 11 of the seat body 10.

[0065] Further, in combination with Figure 1 and Figure 4 The cover assembly 20 includes an upper cover 21, a seat ring 22, and a base 23, the upper cover 21 is located above the seat ring 22, and the upper cover 21 and the seat ring 22 are rotatably mounted to the base 23.

[0066] In some embodiments, the seat body 10 can be made of ceramic or resin. The upper cover 21 can be a traditional toilet cover (i.e., a toilet cover that only has the function of covering the sewage receiving groove 12 of the toilet) or an electronic toilet cover (or "smart toilet cover"), and the electronic toilet cover can provide various types of functions such as toilet cleaning, drying, disinfection, heating, etc. according to user needs.

[0067] Further, the sewage receiving groove 12 has appropriate size and shape to facilitate user defecation. The sewage receiving groove 12 generally includes a sewage receiving surface and a sewage outlet at the bottom of the groove. It can be understood that the sewage receiving surface (also known as the sewage receiving groove inner wall or sewage receiving surface) extends downward from the top of the sewage receiving groove 12 to converge into the sewage outlet, and the sewage outlet is in communication with the water trap 13, and the sewage is flushed from the sewage outlet to the sewage inlet 141 of the sewage pipeline 14 through the water trap 13.

[0068] Further, the mounting bracket 30 includes a mounting plate 31 and at least one mounting cavity 32 for mounting functional components, the mounting cavity 32 is integrated with the mounting plate 31, and the mounting cavity 32 can be closed or open. When the mounting cavity 32 is closed, a through hole for connecting other components can be provided on the mounting cavity 32.

[0069] Continuing to refer to Figure 4 The mounting bracket 30 includes a first mounting cavity 321 and a second mounting cavity 322, and the first mounting cavity 321 and the second mounting cavity 322 are respectively located on both sides of the mounting plate 31 and integrated with the mounting plate 31, i.e., the first mounting cavity 321 and the second mounting cavity 322 are integrally formed with the mounting plate 31. The seat body 10 includes a first mounting groove 111 and a second mounting groove 112, and the first mounting groove 111 and the second mounting groove 112 are arranged at a certain distance and surrounded by the seat body 10. The first mounting groove 111 is used to mount the first mounting cavity 321, and the second mounting groove 112 is used to mount the second mounting cavity 322.

[0070] In combination with Figure 1 , Figure 4 and Figure 5In some embodiments, the mounting plate 31 of the mounting frame 30 is provided with a plurality of fixing columns 311 which are detachably mounted on the mounting plate 31. The bottom plate 231 of the base 23 of the cover assembly 20 is provided with a plurality of fixing holes 2311 which are in interference fit with the plurality of fixing columns 311 respectively. The positions of the fixing columns 311 on the mounting plate 31 are adjustable. The mounting and fixing positions of the fixing columns 311 can be adjusted by referring to the positions of the fixing holes 2311. The fixing columns 311 are respectively provided with at least one annular groove 3111, and in the embodiment shown in the figure, two annular grooves 3111 are provided, and an elastic ring 3112 is arranged in each annular groove 3111. The elastic ring 3112 can be a rubber ring. By means of the elastic deformation of the elastic ring 3112, the self-tightening connection between the fixing columns 311 of the mounting frame 30 and the fixing holes 2311 of the base 23 can be ensured, which is simple and reliable in operation and can also meet the requirement of top-down connection.

[0071] Further, the mounting plate 31 of the mounting frame 30 is provided with a plurality of mounting holes 312. When the mounting frame 30 is directly mounted on the mounting groove 11 of the seat body 10, the first mounting cavity 321 and the second mounting cavity 322 are respectively mounted in the first mounting groove 111 and the second mounting groove 112, and the mounting plate 31 is horizontally placed on the seat body 10. By means of fasteners such as screws passing through the mounting holes 312 of the mounting plate 31, the mounting plate 31 is fixed to the seat body 10, so that the mounting frame 30 is fixed to the seat body 10. Then, the fixing holes 2311 on the base 23 of the cover assembly 20 are aligned with the fixing columns 311 on the mounting plate 31 for top-down mounting. The positions and number of the fixing columns 311 on the mounting plate 31 can be adjusted according to actual needs. The entire connection structure is compact, easy to disassemble and assemble, and has strong adaptability.

[0072] In some embodiments, the toilet bowl 100 comprises a flushing pipeline for flushing the pollution-accepting groove 12. Advantageously, the flushing pipeline can comprise a rim flushing pipeline 41 having a rim flushing nozzle 411. The rim flushing pipeline 41 is used to realize rim flushing on the pollution-accepting groove 12, mainly on the pollution-accepting surface thereof. The so-called "rim flushing" refers to a flushing mode in which flushing water is supplied to the pollution-accepting groove 12 from the upper portion of the pollution-accepting groove 12, especially from the inner edge of the upper portion. A flushing port can be arranged on the inner edge of the upper portion of the pollution-accepting groove 12, and flushing water in the rim flushing pipeline 41 flows into the pollution-accepting groove 12 through the flushing port to perform rim flushing. During rim flushing, the flushing water flushes the pollution-accepting surface from top to bottom to clean the pollution-accepting surface thoroughly without leaving any dead angle.

[0073] In some embodiments, the wall of the pollution-accepting groove 12 can be provided with a mounting hole 121, and the rim flushing nozzle 411 can flush the pollution-accepting groove 12 through the mounting hole 121.

[0074] In some embodiments, the structure of the pollution-collecting surface is configured to facilitate water flow rotation (also referred to as "vortex water outflow") so that the water flowing out of the flushing port rotates while flushing the pollution-collecting surface from top to bottom, thereby more thoroughly cleaning the pollution-collecting surface and the pollution-collecting tank. It is contemplated that the flushing port can also be directly formed on any suitable pollution-collecting surface of the pollution-collecting tank at a position from the top to the middle of the bottom.

[0075] In some embodiments, the flushing pipeline further comprises a bottom flushing pipeline 42, and the bottom flushing nozzle 421 is disposed on the bottom flushing pipeline 421. It is understood that even if the ring flushing pipeline 41 and the bottom flushing pipeline 42 can have a part of the pipeline extending together, this does not change the fact that the ring flushing pipeline 41 and the bottom flushing pipeline 42 are two independent pipelines.

[0076] In some embodiments, the toilet 100 further comprises a flushing valve 50 disposed in the mounting cavity 32 of the mounting frame 30, for example, in the first mounting cavity 321. The flushing valve 50 can control the flushing water to flow into the seat body 10, mainly the pollution-collecting tank 12, via it. In some embodiments, the flushing valve 50 can be selectively in fluid communication with at least one of the ring flushing pipeline 41 and the bottom flushing pipeline 42, so that the water for flushing flows to the pollution-collecting tank 12 via the flushing valve 50 and the ring flushing pipeline 41 and / or the bottom flushing pipeline 42.

[0077] In some embodiments, the flushing valve 50 can be an electrically controlled valve, for example, an electrically controlled hydraulic valve, i.e., the flushing valve 50 can be opened or closed by electrical control. Preferably, the flushing system of the toilet has only one flushing valve 50. When the flushing valve 50 is opened, the water for flushing flows into the ring flushing pipeline 41 and / or the bottom flushing pipeline 42 via the flushing valve 50, and then flows into the pollution-collecting tank 12 of the seat body 10 via the ring flushing pipeline 41 and / or the bottom flushing pipeline 42. In some embodiments, a time period can also be preset to control the flushing of the ring flushing pipeline 41 and / or the bottom flushing pipeline 42.

[0078] In some embodiments, the toilet 100 comprises a first power supply device 60 disposed in the mounting cavity 32 of the mounting frame 30, for example, in the second mounting cavity 322. The first power supply device 60 is configured to supply power to the flushing valve 50.

[0079] In some embodiments, the toilet 100 comprises a second power supply device (not shown) disposed in the mounting cavity 32 of the mounting frame 30, for example, in the second mounting cavity 322. The second power supply device is connected to an external mobile power source or a power adapter.

[0080] Further, the first power supply device 60 can supply power to at least the flushing valve 50 of the toilet 100, or can supply power to other components in addition to the flushing valve 50.

[0081] In some embodiments, the toilet 100 can comprise a water tank, preferably a sunken water tank (also referred to as an "in-built water tank"), more preferably a water tank completely sunken into the seat body. When a sunken water tank is adopted, the toilet 100 can also be referred to as a "low-profile" toilet.

[0082] In some embodiments, the toilet 100 can further comprise a water pump 70, such as a booster pump. The flush valve 50 is provided with a first end in communication with the water outlet of the water pump 70, a second end in communication with the rim jet nozzle 411 of the rim flush pipe 41, and a third end in communication with the bottom flush nozzle 421 of the bottom flush pipe 42.

[0083] In some embodiments, an air isolation device can be provided between the first end of the flush valve 50 and the second end or the third end of the flush valve 50, to prevent water from flowing back into the water tank. With the air isolation device, siphoning can be avoided when the water outlet of the water tank is lower than the water level in the toilet, which can cause dirty water in the toilet to flow back into the water tank, thereby ensuring the cleanliness of the water stored in the water tank, so as to prevent mold and odor caused by sewage pollution in the water tank, and thus reducing the frequency of cleaning the water tank by the user. In addition, a filter can be provided between the water inlet pipe and the flush valve 50, and the filter can be arranged in the mounting cavity 32 of the mounting bracket 30.

[0084] In some embodiments, a flow distribution valve can be arranged upstream of the second end and the third end of the flush valve 50, such as at the first end of the flush valve 50, so that the user can select whether to communicate with the rim jet nozzle 411 or the bottom flush nozzle 421 through the flow distribution valve, and thus select the water outlet of the rim jet nozzle 411 or the bottom flush nozzle 421, to meet the flushing needs of the user and save water resources.

[0085] In some embodiments, the base 23 is provided with a rotating shaft hole 232 for mounting a rotating shaft, and the upper cover 21 and the seat ring 22 are rotatably mounted to the base 23 through the rotating shaft. The base 23 can be mounted with components such as a flush button 241, a night light 242, etc. The flush button 241 has two water outlet buttons corresponding to different water outlet amounts, and the flush button 241 is pressed to actuate the flush valve to flush water. The base 23 can also be mounted with components such as a speed reducer 243, a damper 244, a control circuit board 245, a power adapter 246, and a help button 247, etc. The speed reducer 243 and the damper 244 can slow down the speed of the upper cover 21 and the seat ring 22 falling.

[0086] Further, the control circuit board 245 is connected to a power source through the power adapter 246, and the functions of the control circuit board 245 include but are not limited to: receiving signals from the toilet switch and issuing instructions to supply power to the flushing valve to start the flushing process; controlling the bottom flushing pipe and / or the ring flushing pipe to control the timing of the bottom flushing or ring flushing or the amount of flushing water and flushing time. The distress button 247 is connected to the alarm and is used to send a distress signal.

[0087] It should be understood that the term "and / or" used herein is merely to describe an associated relationship with the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper represents that the front and rear associated objects are a "or" relationship. As used herein, unless otherwise expressly stated, the term "or" encompasses all possible combinations, unless not feasible. For example, if it is stated that a component can include A or B, then unless expressly stated otherwise or not feasible, the component can include A, or B, or A and B. As a second example, if it is stated that a component can include A, B or C, then unless expressly stated otherwise or not feasible, the component can include A, or B, or C, or A and B, or A and C, or B and C, or A and B and C. "Multiple" appearing in the embodiments of the present application means two or more.

[0088] The relationship terms appearing in the embodiments of the present application, such as first, second, etc., are only used to distinguish entities or operations from another entity or operation, and do not require or imply any actual relationship or order between them. In addition, the words "include", "have" and "contain" and other similar forms are intended to be equivalent in meaning and open, and one or more items after any of these words do not mean that it is an exhaustive list of one or more items, or means only the listed one or more items. In the drawings and the specification, exemplary embodiments have been disclosed. However, many changes and modifications can be made to these embodiments. Therefore, although specific terms are used, they are only used for general and descriptive purposes, not for limiting purposes.

[0089] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be limited to the range defined by the claims.

Claims

1. A toilet bowl characterized by comprising: The utility model relates to a toilet bowl, comprising: a seat body comprising a silt tank, a trap and a sewage pipeline connected in sequence, the sewage pipeline is connected with the trap, the trap comprises a first wall away from the sewage pipeline and a second wall below the first wall in the direction of gravity and connected with the sewage inlet, the first wall is provided with an opening; a bottom flushing nozzle, the water outlet of the bottom flushing nozzle is arranged towards the sewage inlet via the opening, the center line of the water column sprayed by the bottom flushing nozzle falls on the sewage pipeline or the second wall, and the center line of the water outlet of the bottom flushing nozzle is deflected by a first preset angle in the direction of gravity compared with the horizontal direction.

2. The toilet bowl according to claim 1, characterized in that, The first preset angle is valued from [8°, 12°].

3. The toilet bowl according to claim 1, wherein The distance between the falling point of the center line of the water column and the sewage inlet is less than a preset threshold.

4. The toilet according to claim 3, characterized in that The preset threshold is valued from [8, 10] millimeters.

5. The toilet bowl according to claim 1, wherein In the horizontal direction, the width of the trap is valued from [70, 80] millimeters.

6. The toilet bowl according to claim 1, wherein The water outlet of the bottom flushing nozzle is flush with the first wall.

7. The toilet bowl according to claim 1, wherein Further comprising: a mounting groove provided in the seat body; a mounting frame mounted on the mounting groove of the seat body, the mounting frame comprising a mounting plate and at least one mounting cavity for mounting functional components, the at least one mounting cavity being integrated with the mounting plate.

8. The toilet according to claim 7, characterized in that Further comprising: a bottom flushing pipeline connected with the bottom flushing nozzle, the bottom flushing pipeline being used for bottom flushing the silt tank; a flushing valve arranged in the at least one mounting cavity, the flushing valve being in fluid communication with the bottom flushing pipeline to enable the water in the bottom flushing pipeline to be sprayed from the bottom flushing nozzle.

9. The toilet according to claim 8, characterized in that Further comprising: a circle flushing pipeline used for circle flushing the silt tank; the flushing valve is also in fluid communication with the circle flushing pipeline, so that the water used for flushing flows to the silt tank via the flushing valve.

10. The toilet according to claim 8 or 9, characterized in that Further comprising: a first power supply device arranged in the at least one mounting cavity, the first power supply device being configured to supply power to the flushing valve; and / or a second power supply device arranged in the at least one mounting cavity, the second power supply device being connected with an external mobile power supply or a power adapter.

11. The toilet bowl according to claim 7, wherein The at least one mounting cavity comprises a first mounting cavity and a second mounting cavity, the first mounting cavity and the second mounting cavity being respectively located on two sides of the mounting plate and integrated with the mounting plate.

12. The toilet according to claim 11, characterized in that The mounting groove comprises a first mounting groove and a second mounting groove, the first mounting groove being used for mounting the first mounting cavity, and the second mounting groove being used for mounting the second mounting cavity.

13. The toilet bowl according to claim 7, wherein Further comprising: a cover assembly mounted on the seat body through the mounting frame, a plurality of fixing columns being arranged on the mounting plate of the mounting frame, and a plurality of fixing holes being arranged on the cover assembly and respectively in interference fit with the plurality of fixing columns.

14. The toilet according to claim 13, characterized in that The plurality of fixing columns are detachably mounted on the mounting plate, and / or the positions of the plurality of fixing columns on the mounting plate are adjustable.

15. The toilet according to claim 14, characterized in that At least one annular groove is arranged on each of the plurality of fixing columns, and an elastic ring is arranged in the at least one annular groove.

16. The toilet bowl according to claim 13, wherein The cover assembly comprises an upper cover, a seat ring and a base, the upper cover is above the seat ring, the upper cover and the seat ring are rotatably installed to the base, and the base is provided with the plurality of fixing holes.

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