Siphon type closestool and flushing method thereof

Abstract

The invention discloses a siphoning type closestool and a flushing method thereof, the siphoning type closestool comprises a closestool body, the closestool body is provided with a urinal and a siphoning pipeline, the top of the urinal is provided with a brush ring structure, and the brush ring structure is controlled by a water outlet control mechanism to discharge water or not; the siphon pipeline comprises a sewage inlet, an ascending pipe section, a descending pipe section and a sewage outlet which are sequentially communicated in the sewage discharging direction, and the sewage inlet is communicated with the bottom of the urinal; the siphon pipeline is provided with an exhaust hole, the exhaust hole is located at the joint of the ascending pipe section and the descending pipe section, and the exhaust hole is provided with an exhaust one-way valve; a switch assembly is arranged at the drain outlet, when the switch assembly is in a closed state, the siphon pipeline at least enables the downcomer section to be in a full-pipe state full of water by supplementing water, and in the water supplementing process of the siphon pipeline, air in the siphon pipeline is exhausted through the exhaust one-way valve. Passive siphoning is changed into active siphoning, and air noise generated by high-speed water flow for spraying siphoning is avoided, so that the flushing noise of the whole closestool is reduced, and the defecation comfort is improved.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, in particular to a siphon toilet and a flushing method thereof. Background Art

[0002] Siphonic toilets have become the mainstream toilets on the market because of their clean flushing and ability to effectively seal odors. In order to quickly form a siphon, the siphonic toilets of the prior art need to allow a large amount of water to flush into the siphon pipe in a short period of time. Therefore, the siphonic toilets of the prior art generally have a jet port at the bottom of the toilet bowl opposite to the sewage inlet of the siphon pipe, so that when flushing, the jet port sprays a high-speed water flow, pushing the water seal water and dirt at the bottom of the toilet bowl to the sewage outlet, and providing a large amount of water flow to the siphon pipe, thereby accelerating the formation of the siphon. However, the method of using the jet port to spray water has the following shortcomings: the high-speed water flow will generate air noise, resulting in a large flushing noise; the jet port is easy to hide dirt and is not easy to clean. Summary of the invention

[0003] The present invention aims at the technical problems existing in the prior art and provides a siphon toilet and a flushing method thereof, which solves the problem that the conventional method of directly spraying high-speed water flow will generate large flushing noise.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a siphon toilet, comprising a toilet body, the toilet body is provided with a toilet bowl and a siphon pipe, the top of the toilet bowl is provided with a brush ring structure for flushing the pot surface of the toilet bowl, and the brush ring structure is controlled by a water outlet control mechanism to discharge water; the siphon pipe comprises a sewage inlet, an ascending pipe section, a descending pipe section and a sewage outlet which are sequentially connected along the sewage discharge direction, and the sewage inlet is connected to the bottom of the toilet bowl; the siphon pipe is provided with an exhaust hole, the exhaust hole is located at the connection between the ascending pipe section and the descending pipe section, and the exhaust hole is provided with an exhaust check valve; the sewage outlet is provided with a switch component for controlling whether the siphon pipe discharges sewage, and when the switch component is closed, the siphon pipe is filled with water to at least make its descending pipe section full of water by replenishing water, and during the water replenishment process of the siphon pipe, the air in the siphon pipe is discharged through the exhaust check valve.

[0005] Furthermore, the exhaust hole is located at the top of the connection between the ascending pipe section and the descending pipe section. When the descending pipe is full, a negative pressure chamber is formed at the connection between the ascending pipe section and the descending pipe section.

[0006] Furthermore, the water replenishment of the siphon pipe comes from the water flow output by the brush ring structure.

[0007] Furthermore, the switch assembly includes a flap for performing opening and closing actions and a motor for driving the flap to flip.

[0008] Furthermore, the switch assembly also includes a shell, which is provided with an inlet and an outlet, the inlet is connected to the sewage outlet, the flap is rotatably connected to the shell by a rotating shaft, the motor is arranged outside the shell, and is connected to the rotating shaft of the flap by a transmission component.

[0009] Furthermore, the flap is arranged at the inlet, and the flap is opened by flipping in a direction away from the sewage outlet.

[0010] Furthermore, the flap is arranged at the outlet, and the flap is opened by flipping in a direction close to the sewage outlet; the outlet and the inlet are arranged relative to each other front and back, and the shell is also provided with a sewage bend pipe, one end of which is connected to the outlet, and the other end of the sewage bend pipe is arranged downward.

[0011] Furthermore, the transmission component includes a driving gear and a driven gear, the driving gear is arranged on the output shaft of the motor, the axle of the driven gear is coaxially connected to the rotating shaft, and the driven gear is meshed with the driving gear; the switch assembly also includes a torsion spring, which is sleeved on the axle of the driven gear, and one end of the torsion spring is limited to the axle, and the other end of the torsion spring is limited to the housing or a motor seat arranged outside the housing, and the torsion spring is in a pre-tightened state; the motor is installed on the motor seat.

[0012] Furthermore, the water outlet control mechanism includes a control valve, the water inlet end of the control valve is connected to a water source, and the water outlet end of the control valve is connected to the brush ring structure, and the brush ring structure includes one or a combination of a brush ring water channel, a brush ring port, and a brush ring nozzle.

[0013] Furthermore, the water outlet control mechanism and the switch assembly are electrically controlled, and the control valve and the switch assembly are coordinated and controlled by a main control board.

[0014] Furthermore, the exhaust one-way valve includes a hollow valve body and a valve core, the valve body is sealingly connected to the exhaust hole, the valve core includes a mounting column and an elastic diaphragm, the mounting column is passed through a hollow bracket arranged in the valve body, the elastic diaphragm is arranged at one end of the mounting column away from the inner cavity of the siphon pipe, and the elastic diaphragm is bowl-shaped, and the edges of the elastic diaphragm are fitted to the inner wall surface of the valve body.

[0015] A siphon toilet flushing method of the present invention comprises the following steps:

[0016] The water outlet control mechanism is turned on to make the brush ring structure discharge water and replenish water to the siphon pipe until the descending pipe section of the siphon pipe is filled with water;

[0017] Turn on the switch assembly, the siphon pipe drains water, quickly sucks away the water seal and dirt at the bottom of the toilet bowl to form a siphon, and also takes away the dirt flushed down by the toilet bowl brush ring water;

[0018] The switch assembly and the water outlet control mechanism are turned off, and the water outlet control mechanism is turned off when the water seal water replenishment at the bottom of the toilet bowl is completed.

[0019] Another siphon toilet flushing method of the present invention comprises the following steps:

[0020] When the descending pipe section of the siphon pipe is full, the switch assembly and the water outlet control mechanism are turned on, the siphon pipe is drained, the water seal water and dirt at the bottom of the toilet bowl are quickly sucked away to form a siphon, and the dirt flushed down by the toilet bowl brush ring water is also taken away;

[0021] Turn off the switch assembly;

[0022] When the descending pipe section of the siphon pipe is filled with water to a full pipe state, the water outlet control mechanism is closed.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Since the siphon pipe of the present invention is provided with the exhaust hole and a switch assembly is provided at the sewage outlet, when the switch assembly is closed, the siphon pipe at least makes its descending pipe section full of water by replenishing water, and during the water replenishment process of the siphon pipe, the air in the siphon pipe is discharged through the exhaust one-way valve, so that when the switch assembly of the present invention is turned on, the descending pipe section of the siphon pipe quickly drains water, so that the negative pressure in the siphon pipe increases instantly and quickly forms a siphon, thereby taking away the dirt. Therefore, the present invention changes the existing toilet method of spraying high water flow to generate siphon, and changes the passive siphon into an active siphon. There will be no air noise generated by the high-speed water flow of the spray siphon, thereby reducing the flushing noise of the entire toilet and improving the comfort of using the toilet. In addition, the bottom of the toilet bowl of the present invention does not need to be provided with a spray port, which can improve the yield rate of the toilet body and reduce costs, and there is no spray port at the bottom of the toilet bowl, which can reduce the dirt and grime at the bottom of the toilet bowl, reduce the difficulty of cleaning, and improve the visual effect when using the toilet.

[0025] 2. The design of the exhaust hole and the exhaust check valve can greatly increase the negative pressure of the siphon pipe, thereby improving the siphon effect.

[0026] 3. The present invention is provided with two water seals (water in the downcomer section and water seal water at the bottom of the toilet bowl) and a switch assembly, which can improve the odor-isolating effect of the toilet.

[0027] 4. The exhaust hole is located at the top of the connection between the ascending pipe section and the descending pipe section, which can reduce the pollution and blockage of the exhaust hole by dirt.

[0028] 5. The switch assembly is modularly designed, easy to install and has high structural stability.

[0029] 6. After flushing, replenish the water seal and the downcomer section with water, which can perform a second cleansing on the toilet bowl surface to improve the cleaning effect.

[0030] 7. The present invention directly uses the brush ring structure to discharge water to replenish the siphon pipe, so there is no need to set up a water replenishment mechanism for the siphon pipe, making the overall structure simpler and the cost lower.

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments; however, the siphon toilet and flushing method thereof of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is an exploded schematic diagram of a toilet according to the present invention in Example 1;

[0033] Figure 2 is an exploded schematic diagram of a switch assembly of the present invention in Example 1;

[0034] Figure 3 1 is an exploded schematic diagram of an exhaust one-way valve of the present invention according to Embodiment 1;

[0035] Figure 4 is a cross-sectional view of the toilet of the present invention in the first embodiment when the downpipe section is full;

[0036] Figure 5 Embodiment 1 Figure 4 A magnified schematic diagram of part A;

[0037] Figure 6 1 is a schematic diagram (cross-sectional view) of flushing of a toilet according to the present invention in Embodiment 1;

[0038] Figure 7 is a cross-sectional view of the toilet of the second embodiment of the present invention in a state where the downpipe section is full;

[0039] Figure 8 Schematic diagram of flushing of a toilet according to the second embodiment of the present invention (cross-sectional view);

[0040] In the figure, 1, toilet body; 11, siphon pipe; 111, sewage inlet; 112, ascending pipe section; 113, descending pipe section; 114, sewage outlet; 115, exhaust hole; 116, negative pressure chamber; 117, flat pipe section; 12, toilet bowl; 2, switch assembly; 21, flap; 211, rotating shaft; 212, limiting groove; 22, motor; 23, housing; 231, opening; 232, outlet; 24, driving gear; 25, driven gear; 26, axle; 261, limiting convex part; 27, torsion spring; 28, motor seat; 29, motor cover; 210, cover plate; 220, drain elbow; 3, exhaust check valve; 31, valve body; 311, hollow bracket; 32, valve core; 321, mounting column; 322, elastic diaphragm; 4, brush ring nozzle; 5, solenoid valve; 6, dirt. DETAILED DESCRIPTION

[0041] Embodiment 1

[0042] See also Figure 1-Figure 6 As shown, a siphon toilet of the present invention comprises a toilet body 1, the toilet body 1 is provided with a toilet bowl 12, a siphon pipe 11, the top of the toilet bowl 12 is provided with a brush ring structure for flushing the pot surface of the toilet bowl 12, and the brush ring structure is controlled by a water discharge control mechanism to discharge water. The siphon pipe 11 comprises a sewage inlet 111, an ascending pipe section 112, a descending pipe section 113 and a sewage outlet 114 which are sequentially connected along the sewage discharge direction, and the sewage inlet 111 is connected to the bottom of the toilet bowl 12. The siphon pipe 11 is provided with an exhaust hole 115, which is located at the junction of the ascending pipe section 112 and the descending pipe section 113, and the exhaust hole 115 is provided with an exhaust check valve 3. A switch assembly 2 for controlling whether the siphon pipe 11 discharges sewage is provided at the sewage outlet 114 of the siphon pipe 11. When the switch assembly 2 is in the closed state, the siphon pipe 11 is filled with water so that at least its downcomer section 113 is in a full pipe state filled with water, and during the water replenishment process of the siphon pipe 11, the air in the siphon pipe 11 is discharged through the exhaust check valve 3.

[0043] In this embodiment, the sewage inlet 111 is arranged at one end of the ascending pipe section 112 away from the descending pipe section 113, and a flat pipe section 117 is arranged between the sewage outlet 114 and the descending pipe section 113, so that the sewage outlet 114 is arranged toward the front side of the toilet body 1, but it is not limited to this. In other embodiments, the sewage outlet is arranged at one end of the descending pipe section away from the ascending pipe section, and can be arranged downward. The exhaust hole 115 is located at the top of the connection between the ascending pipe section 112 and the descending pipe section 113. When the descending pipe section 113 is full, a negative pressure chamber 116 is formed at the connection between the ascending pipe section 112 and the descending pipe section 113. The water replenishment of the siphon pipe 11 comes from the water flow output by the brush ring structure. Therefore, the present invention directly uses the water output of the brush ring structure to replenish the siphon pipe 11, and there is no need to set up a water replenishment mechanism for the siphon pipe 11, so that the overall structure is simpler and the cost is lower.

[0044] like Figure 2 As shown, the switch assembly 2 includes a flap 21 for performing opening and closing actions and a motor 22 for driving the flap 21 to flip; the switch assembly 2 also includes a housing 23, the housing 23 is provided with an inlet 231 and an outlet 232, the inlet 231 is connected to the sewage outlet 114, the flap 21 is rotatably connected to the housing 23 by a rotating shaft 211, the motor 22 is arranged outside the housing 23, and is connected to the rotating shaft 211 of the flap 21 by a transmission component. Therefore, the present invention enables the switch assembly 2 to achieve a modular design, convenient installation, and high structural stability. The flap 21 specifically includes a flap body and a sealing ring sleeved on the flip body, and the rotating shaft 211 is arranged at one end of the flip body and is arranged roughly parallel to the flip body.

[0045] like Figure 4 , Figure 6 As shown, the flap 21 is specifically arranged at the inlet 231 of the housing 23, and the flap 21 performs the opening action by flipping in the direction away from the sewage outlet 114. Therefore, the flap 21 is kept in the closed position by the action of the motor 22 in the closed state. The outlet 232 of the housing 23 faces downward to facilitate the connection of the sewer pipe. The housing 23 is provided with an opening at one end opposite to the inlet 231, and the flap 21 is installed in the housing 23 through the opening, and then the opening is closed by a cover plate 210 connected to the housing 23.

[0046] like Figure 2 As shown, the transmission component includes a driving gear 24 and a driven gear 25, the driving gear 24 is arranged on the output shaft of the motor 22, the wheel shaft 26 of the driven gear 25 is coaxially connected with the rotating shaft 211, and the driven gear 25 is meshed with the driving gear 24. The wheel shaft 26 of the driven gear 25 and the rotating shaft 211 of the flap 21 are coaxially connected in the following manner: a limiting structure is provided between one end of the wheel shaft 26 and one end of the rotating shaft 211, and the limiting structure includes a limiting convex part and a limiting groove that are plugged into each other, one of the limiting convex part and the limiting groove is arranged at one end of the wheel shaft 26, and the other of the limiting convex part and the limiting groove is arranged at one end of the rotating shaft 211. Specifically, in this embodiment, the limiting convex part 261 is arranged at one end of the wheel shaft 26, and the limiting groove 212 is arranged at one end of the rotating shaft 211, but it is not limited thereto. The contours of the limiting protrusion 261 and the limiting groove 212 are both non-circular. Specifically, the contours of the limiting protrusion 261 and the limiting groove 212 are both cross-shaped, but not limited thereto.

[0047] As a preferred embodiment, the switch assembly 2 of the present invention further comprises a torsion spring 27, which is sleeved on the axle 26 of the driven gear 25, and one end of the torsion spring 27 is limited to the axle 26, and the other end of the torsion spring 27 is limited to the housing 23 or the motor seat 28 provided outside the housing 23. The torsion spring 27 is in a pre-tightened state, which can compensate for the gap between the driving gear 24 and the driven gear 25 due to wear, thereby ensuring the sealing stability of the flap 21. The motor 22 is installed in the motor seat 28 and covered by a motor cover 29 connected to the motor seat 28.

[0048] like Figure 3 , Figure 5 As shown ( Figure 5 The middle arrow indicates the exhaust direction), the exhaust one-way valve 3 includes a hollow valve body 31 and a valve core 32, the valve body 31 is sealed and connected to the exhaust hole 115, the valve core 32 includes a mounting column 321 and an elastic diaphragm 322, the mounting column 321 is penetrated by a hollow bracket 311 arranged in the valve body 31, the elastic diaphragm 322 is arranged at one end of the mounting column 321 away from the inner cavity of the siphon pipe 11, and the elastic diaphragm 322 is bowl-shaped, and the edges of the elastic diaphragm 322 are in contact with the inner wall surface of the valve body 31.

[0049] In this embodiment, the water outlet control mechanism includes a control valve, the water inlet end of the control valve is connected to a water source, and the water outlet end of the control valve is connected to a brush ring structure. The brush ring structure includes one or a combination of a brush ring water path, a brush ring mouth, and a brush ring nozzle. Specifically, in this embodiment, the brush ring structure includes a brush ring nozzle 4.

[0050] The water outlet control mechanism and the switch assembly 2 are both electrically controlled, and the control valve and the switch assembly 2 are coordinated and controlled by a main control board (not shown in the figure). Specifically, in this embodiment, the control valve is a pulse electromagnetic valve 5, but it is not limited to this. The electromagnetic valve 5 and the motor 22 are electrically connected to the main control board respectively. In other embodiments, the water outlet control mechanism is mechanical, for example, the water outlet control mechanism is set in a human-driven drain valve in the water tank, and the switch assembly is mechanical and can be driven by foot.

[0051] The present invention sets a switch assembly 2 at the end of the siphon pipe 11 (i.e., the sewage outlet 114), and fills the descending pipe section 113 of the siphon pipe 11 with water (full pipe), so that a negative pressure chamber 116 is formed between the water seal of the toilet. Figure 4 When working, the starting motor 22 drives the driving gear 24 to rotate, and the driving gear 24 drives the driven gear 25 to rotate, thereby driving the flap 21 to rotate to start the sewage discharge. When the switch assembly 2 is turned on, the full water in the descending pipe section 113 of the siphon pipe 11 flows away quickly, causing the negative pressure of the negative pressure chamber 116 to increase instantly and quickly form a siphon, thereby taking away the water seal water and the dirt 6 at the bottom of the toilet bowl 12, and at the same time taking away the dirt on the pot surface of the toilet bowl 12 flushed by the water from the brush ring nozzle 4, as shown in FIG. Figure 6 As shown in the figure, the arrow indicates the direction of sewage discharge, and thus a flushing is completed. The siphon formed in this way changes the existing toilet that needs to spray high-speed water flow to generate siphon, and turns the passive siphon into an active siphon. Therefore, there is no air noise generated by the high-speed water flow of the siphon, which reduces the flushing noise of the entire toilet and improves the comfort of toileting.

[0052] When a flushing is completed, the switch assembly 2 is reversed and closed by the motor 22, and water is sprayed through the brush ring nozzle 4 to replenish the water seal of the toilet bowl 12 and the downpipe section 113, which is equivalent to a second cleaning of the pot surface of the toilet bowl 12.

[0053] Embodiment 2

[0054] See also Figure 7-Figure 8 As shown, the siphon toilet of the present invention is different from the above-mentioned embodiment 1 in that the flap 21 is arranged at the outlet 232 of the housing 23, and the flap 21 is opened by flipping in the direction close to the sewage outlet 114. In this way, the flap 21 is sealed in the closed position by the water pressure of the full pipe water in the descending pipe section 113, as shown in FIG. Figure 7 As shown, the arrow in the figure indicates the direction of the force of the water pressure on the flap 21, so there is no need to set up an additional torsion spring 27 to provide a pre-tightening force for sealing, and the sealing is reliable. The outlet 232 of the housing 23 is arranged opposite to the inlet 231 in front and back, and the housing 23 is also provided with a sewage elbow 220, one end of which is connected to the outlet 232, and the other end of the sewage elbow is arranged downward to facilitate connection to the sewer pipe.

[0055] A siphon toilet flushing method of the present invention comprises the following steps:

[0056] The water outlet control mechanism (i.e., the solenoid valve 5) is turned on to make the brush ring structure (i.e., the brush ring nozzle 4) discharge water, and the siphon pipe 11 is replenished with water until the descending pipe section 113 of the siphon pipe 11 is filled with water;

[0057] Turn on the switch assembly 2, the siphon pipe 11 drains water, quickly sucks away the water seal and dirt at the bottom of the toilet bowl 12 to form a siphon, and also takes away the dirt flushed down by the brush ring water of the toilet bowl 12;

[0058] The switch assembly 2 and the water outlet control mechanism are turned off, and the water outlet control mechanism is turned off when the water seal water at the bottom of the toilet bowl 12 is fully replenished. The switch assembly 2 and the water outlet control mechanism can be turned off at the same time or at different times.

[0059] Therefore, the siphon pipe 11 is replenished with water each time the flushing is started. Each time the flushing is started, the siphon pipe 11 is replenished with water first, so that the descending pipe section 113 of the siphon pipe 11 is replenished with water to a full pipe state, and then the switch component 2 is opened for sewage discharge.

[0060] Another siphon toilet flushing method of the present invention comprises the following steps:

[0061] When the descending pipe section 113 of the siphon pipe 11 is full, the switch assembly 2 and the water outlet control mechanism (i.e., the solenoid valve 5) are turned on, the siphon pipe 11 is drained, the water seal water and the dirt at the bottom of the toilet bowl 12 are quickly sucked away to form a siphon, and the dirt flushed down by the brush ring water of the toilet bowl 12 is also taken away;

[0062] Turn off switch assembly 2;

[0063] When the descending pipe section 113 of the siphon pipe 11 is filled with water to a full pipe state, the water outlet control mechanism is closed.

[0064] Therefore, in another flushing method of the present invention, the siphon pipe 11 is replenished with water at the end of each flushing and sewage discharge. At the end of each flushing and sewage discharge, the siphon pipe 11 is replenished with water first, so that the descending pipe section 113 of the siphon pipe 11 is replenished with water to a full pipe state, and then the water outlet control mechanism is closed to prepare for the next flushing and sewage discharge.

[0065] The present invention provides a siphon toilet and a flushing method thereof, and the unrelated parts are the same as the prior art or can be implemented by using the prior art.

[0066] The above embodiments are only used to further illustrate a siphon toilet and a flushing method thereof of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A siphon toilet, comprising a toilet body, the toilet body being provided with a toilet bowl and a siphon pipe, the top of the toilet bowl being provided with a brush ring structure for flushing the pot surface of the toilet bowl, the brush ring structure being controlled by a water discharge control mechanism to discharge water; the siphon pipe comprising a sewage inlet, an ascending pipe section, a descending pipe section and a sewage outlet which are sequentially connected along the sewage discharge direction, the sewage inlet being connected to the bottom of the toilet bowl; characterized in that: The siphon pipe is provided with an exhaust hole, which is located at the junction of the ascending pipe section and the descending pipe section, and the exhaust hole is provided with an exhaust one-way valve; the sewage outlet is provided with a switch component for controlling whether the siphon pipe discharges sewage or not, and when the switch component is closed, the siphon pipe is filled with water to at least make its descending pipe section full of water by water replenishment, and during the water replenishment process of the siphon pipe, the air in the siphon pipe is discharged through the exhaust one-way valve.

2. The siphon toilet according to claim 1, characterized in that: The exhaust hole is located at the top end of the connection between the ascending pipe section and the descending pipe section. When the descending pipe is in a full pipe state, a negative pressure chamber is formed at the connection between the ascending pipe section and the descending pipe section.

3. The siphon toilet according to claim 1, characterized in that: The water replenishment of the siphon pipe comes from the water flow output by the brush ring structure.

4. The siphon toilet according to claim 1, characterized in that: The switch assembly includes a flap for performing an opening and closing action and a motor for driving the flap to flip.

5. The siphon toilet according to claim 4, characterized in that: The switch assembly also includes a shell, which is provided with an inlet and an outlet, the inlet is connected to the sewage outlet, the flap is rotatably connected to the shell by a rotating shaft, the motor is arranged outside the shell, and is connected to the rotating shaft of the flap by a transmission component.

6. The siphon toilet according to claim 5, characterized in that: The flap is arranged at the inlet, and the flap is opened by flipping in a direction away from the sewage outlet.

7. The siphon toilet according to claim 5, characterized in that: The flap is arranged at the outlet, and the flap is opened by flipping in a direction close to the sewage outlet; the outlet and the inlet are arranged relative to each other front and back, and the shell is also provided with a sewage bend pipe, one end of which is connected to the outlet, and the other end of the sewage bend pipe is arranged downward.

8. The siphon toilet according to any one of claims 5 to 7, characterized in that: The transmission component includes a driving gear and a driven gear, the driving gear is arranged on the output shaft of the motor, the axle of the driven gear is coaxially connected to the rotating shaft, and the driven gear is meshed with the driving gear; the switch assembly also includes a torsion spring, the torsion spring is sleeved on the axle of the driven gear, and one end of the torsion spring is limited to the axle, and the other end of the torsion spring is limited to the housing or the motor seat arranged outside the housing, and the torsion spring is in a pre-tightened state; the motor is installed on the motor seat.

9. The siphon toilet according to claim 1, characterized in that: The water outlet control mechanism includes a control valve, the water inlet end of the control valve is connected to a water source, and the water outlet end of the control valve is connected to the brush ring structure. The brush ring structure includes one or a combination of a brush ring waterway, a brush ring port, and a brush ring nozzle.

10. The siphon toilet according to claim 1, characterized in that: The water outlet control mechanism and the switch assembly are electrically controlled, and the control valve and the switch assembly are coordinated and controlled by a main control panel.

11. The siphon toilet according to claim 1, characterized in that: The exhaust one-way valve includes a hollow valve body and a valve core. The valve body is sealingly connected to the exhaust hole. The valve core includes a mounting column and an elastic diaphragm. The mounting column passes through a hollow bracket arranged in the valve body. The elastic diaphragm is arranged at one end of the mounting column away from the inner cavity of the siphon pipe, and the elastic diaphragm is bowl-shaped. The edges of the elastic diaphragm are in contact with the inner wall surface of the valve body.

12. A siphon toilet flushing method as claimed in any one of claims 1 to 11, characterized in that: The following steps are involved: The water outlet control mechanism is turned on to make the brush ring structure discharge water and replenish water to the siphon pipe until the descending pipe section of the siphon pipe is filled with water; Turn on the switch assembly, the siphon pipe drains water, quickly sucks away the water seal and dirt at the bottom of the toilet bowl to form a siphon, and also takes away the dirt flushed down by the toilet bowl brush ring water; The switch assembly and the water outlet control mechanism are turned off, and the water outlet control mechanism is turned off when the water seal water replenishment at the bottom of the toilet bowl is completed.

13. A flushing method for a siphon toilet as claimed in any one of claims 1 to 11, characterized in that: The following steps are involved: When the descending pipe section of the siphon pipe is full, the switch assembly and the water outlet control mechanism are turned on, the siphon pipe is drained, the water seal water and dirt at the bottom of the toilet bowl are quickly sucked away to form a siphon, and the dirt flushed down by the toilet bowl brush ring water is also taken away; Turn off the switch assembly; When the descending pipe section of the siphon pipe is filled with water to a full pipe state, the water outlet control mechanism is closed.

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