A toilet

Abstract

The utility model relates to a bathroom technical field, concretely relates to a toilet, including water tank, sterilization gas supply device and gas -liquid discharge device and inhale and exhaust purification device, sterilization gas supply device is used for supplying sterilization gas to water tank, gas -liquid mixing device includes mixing cover, and the mixing cover is the cover shape structure of opening downward, and the upper part of mixing cover is connected to sterilization gas supply device, and the opening of mixing cover is lower than the preset highest water level of water tank, thereby mixing cover forms the gas cavity higher than the water surface, be equipped with aeration element in mixing cover, and the aeration opening of aeration element is lower than the preset highest water level, to make sterilization gas to enter into the water with small bubble and form sterilization water, and the sterilization water can be supplied to water component outward also can be used for flushing the toilet, thereby to the part of toilet that needs sterilization is sterilized. The sterilization gas in gas cavity can also participate in sterilization purification under the action of negative pressure.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, specifically to a toilet. Background Technology

[0002] With societal development, people are increasingly emphasizing hygiene and health. Toilets, as a type of sanitation appliance, are also a route for bacterial transmission. Currently, toilet sterilization measures are limited to foam shields and localized ultraviolet (UV) sterilization. However, chemical sterilization is not environmentally friendly—foam shields, for example, are expensive and their sterilization range is limited to the toilet's drainage chamber. UV sterilization is limited by light propagation and can only work in areas directly exposed to UV light. Existing toilet sterilization measures all have certain limitations and are difficult to effectively kill bacteria across a broad spectrum. Summary of the Invention

[0003] The purpose of this utility model is to provide a toilet that solves the problems of poor sterilization effect and environmental unfriendliness of existing toilets by using gas-liquid sterilization measures.

[0004] To achieve the above objectives, the technical solution of this utility model is: a toilet, comprising:

[0005] A water tank, wherein a gas-liquid mixing device is provided inside the water tank;

[0006] A sterilizing gas supply device is provided, wherein the sterilizing gas supply device is provided with a gas supply pipe, the gas supply pipe is connected to a water tank for supplying sterilizing gas into the water tank, and the sterilizing gas and water in the water tank are mixed to form sterilizing water;

[0007] The gas-liquid mixing device includes a mixing hood, which is a downward-opening hood-shaped structure. The upper part of the mixing hood is connected to the gas supply pipe so that the sterilizing gas enters the upper part of the mixing hood. The upper part of the mixing hood is higher than the preset maximum water level of the water tank, and the opening of the mixing hood is lower than the preset maximum water level of the water tank, thereby forming a gas cavity above the water surface.

[0008] A gas-liquid discharge device includes a water inlet pipe with a gas-water inlet located inside the water tank, which is used to supply the sterilizing water to the water-using components.

[0009] In one embodiment, the air-water inlet is located inside the mixing hood, and its position within the water tank is between a preset maximum water level and a preset minimum water level.

[0010] In one embodiment, the gas-liquid discharge device further includes a water pump, the inlet of which is connected to the water inlet pipe, and the outlet of which is connected to the water-using component, thereby supplying the sterilizing water to the water-using component; the water-using component includes any one or more of a seat ring sterilization component, a spray gun, and a human body rinsing spray pipe; the sterilizing gas supply device is an electro-ion generator.

[0011] In one embodiment, the mixing hood is provided with an aeration element, one end of which is provided with an air inlet. The air inlet is higher than the preset maximum water level and connected to the air supply pipe. The aeration element is provided with an aeration core, which is provided with multiple aeration ports. The aeration ports are located below the preset maximum water level, and the aperture of the aeration ports is much smaller than the aperture of the air inlet. The aeration ports allow the bactericidal gas from the air inlet to disperse into the water as small bubbles.

[0012] In one embodiment, the aeration element is further provided with a first water inlet and a second water inlet. The first water inlet is disposed on the circumferential sidewall of the aeration element and surrounds the aeration port, and the second water inlet is connected to the air-water inlet.

[0013] In one embodiment, the toilet is a toilet with a seat ring, the surface of the seat ring for the user to sit on is defined as the seat support surface, the seat support surface is located on the upper surface of the seat ring, the water-using component is a seat ring sterilization component, the seat ring sterilization component includes a spray nozzle, the spray nozzle is used to spray the sterilizing water onto the seat support surface, and the spray nozzle is configured in any of the following ways:

[0014] (1) The spray nozzle is disposed on the bearing surface of the seat ring to spray the disinfectant water upward when the upper cover is closed, and the disinfectant water falls back to the bearing surface by the cover.

[0015] (2) The spray nozzle is located on the upper cover and faces the bearing surface, so as to spray the bactericidal water onto the bearing surface when the upper cover is closed.

[0016] In one embodiment, the spray nozzle is arranged along the circumferential extension direction of the seat ring.

[0017] In one embodiment, the water tank is provided with an inlet valve and a drain valve. The mixing shroud is installed at the top of the overflow pipe of the drain valve. The gas chamber extends to the top of the overflow pipe and communicates with the overflow pipe. The water tank forms an overflow channel by means of the communication between the mixing shroud and the overflow pipe. The top of the mixing shroud is also provided with a water inlet. The water inlet is connected to the water inlet pipe of the inlet valve. The position of the water inlet corresponds to the overflow pipe, so that the water flow from the water inlet pipe can flow to the overflow pipe through the water inlet.

[0018] In one embodiment, the mixing hood is provided with a positioning step to install the mixing hood on the overflow pipe. There is a distance between the top surface of the mixing hood and the top of the overflow pipe, which allows the overflow pipe to communicate with the gas chamber. Thus, the water flow from the water inlet siphon and the suction and discharge purification device can create suction on the bactericidal gas in the gas chamber and eliminate and neutralize odor-causing bacteria.

[0019] In one embodiment, the water tank is provided with a suction and exhaust purification device, which includes a suction and exhaust fan for drawing gas from the sewage chamber of the toilet body. The suction port of the suction and exhaust fan is connected to the sewage chamber and the overflow pipe, thereby connecting to the mixing hood through the overflow pipe, so that the suction and exhaust fan can draw the bactericidal gas through the overflow pipe.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model sets a mixing hood inside the water tank and extends a portion of it below the highest water level. The sterilizing gas enters the gas chamber of the mixing hood and can be retained inside the gas chamber, preventing the sterilizing gas from diffusing rapidly and failing to fully mix with the water. The sterilizing gas mixes with the water in the water tank to form sterilizing water, and the sterilizing water is supplied to the outside through the gas-liquid discharge device. The sterilizing water can be used to sterilize the parts of the toilet that need sterilization, thereby improving the sterilization effect.

[0022] 2. The mixing hood is also connected to the overflow pipe. When the inlet valve replenishes water to the overflow pipe, the water flow creates suction on the sterilizing gas, forming sterilizing water which is then supplied to the toilet's drain chamber, so that the water remaining in the drain chamber can sterilize the drain chamber. Attached Figure Description

[0023] Figure 1 This is a perspective view of an embodiment of the toilet of this utility model.

[0024] Figure 2 This is an incomplete perspective view of an embodiment of the toilet of this utility model, excluding the water tank.

[0025] Figure 3 This is a top view of an embodiment of the toilet of this utility model.

[0026] Figure 4 yes Figure 3 AA sectional view.

[0027] Figure 5 yes Figure 4 A magnified view of a section at point B.

[0028] Figure 6 This is a schematic diagram of an embodiment of the present invention in which the water spray nozzle is set in the seat ring.

[0029] Figure 7 This is a schematic diagram of an embodiment of the present invention in which the water spray nozzle is set on the upper cover.

[0030] Figure 8 This is a front view of an embodiment of the squat toilet of this utility model.

[0031] Figure 9 This is a top view of an embodiment of the squat toilet of this utility model.

[0032] The components include: 1. Water tank; 2. Inlet valve; 21. Water supply pipe; 22. Float; 20. Suction and discharge purification device; 201. Air intake port; 3. Drain valve; 31. Overflow pipe; 4. Gas-liquid mixing device; 40. Mixing hood; 401. Gas chamber; 41. Air inlet; 42. Water supply port; 43. Positioning step; 5. Sterilization gas supply device; 51. Air supply pipe; 50. Aeration element; 501. Aeration core; 502. Air inlet; 503. First water outlet; 504. Aeration port; 505. Second water outlet; 6. Gas-liquid discharge device; 61. Inlet pipe; 612. Gas-water inlet; 62. Water pump; 7. Seat ring; 71. Support surface; 72. Spray nozzle; 8. Top cover; 9. Spray gun.

[0033] Sewage discharge chamber 101, sewage discharge pipe 102. Detailed Implementation

[0034] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0035] See Figures 1 to 5 As shown, this utility model discloses a toilet, comprising:

[0036] Water tank 1, which is equipped with inlet valve 2, drain valve 3 and gas-liquid mixing device 4;

[0037] The sterilization gas supply device 5 is provided with a gas supply pipe 51, which is connected to the water tank 1 to supply sterilization gas into the water tank 1.

[0038] The gas-liquid mixing device 4 includes a mixing hood 40, which is a downward-opening, dome-shaped structure. The upper part of the mixing hood 40 is connected to the gas supply pipe 51 of the sterilizing gas supply device 5, so that the sterilizing gas enters the upper part of the mixing hood 40. The upper part of the mixing hood 40 is higher than the preset maximum water level L of the water tank 1. H The opening of the mixing hood 40 is lower than the preset maximum water level L of the water tank 1. HThis creates a gas chamber 401 above the water surface within the mixing shroud 40. In this embodiment, the upper part of the mixing shroud 40 refers to the area above the preset maximum water level L of the water tank 1. H The portion is based on the preset maximum water level L. H The mixing hood 40 is divided into an upper and a lower part. The upper part forms a gas chamber 401, allowing the sterilizing gas to dissolve in the water in the tank and also enter the toilet drain chamber or the suction and purification device 20 through the water supply pipe. In this embodiment, the air supply pipe 51 is inserted into the mixing hood 40 through the insertion hole 41 on the top surface of the mixing hood 40. In other embodiments, the air supply pipe 51 may also be inserted from the side of the mixing hood 40 and above the preset maximum water level L. H The position is inserted into the mixing hood 40, thereby supplying sterilizing gas to the gas chamber 401.

[0039] The gas-liquid discharge device 6 includes a water inlet pipe 61 with a gas-water inlet 612, which is located inside the water tank 1, and is used to supply the sterilizing water mixed with the sterilizing gas and the water in the water tank 1 to the water-using components.

[0040] This invention places a mixing cover 40 inside a water tank 1 and extends a portion of it to a preset maximum water level L. H The sterilizing gas enters the gas chamber 401 of the mixing hood 40 and can be retained in the gas chamber 401 to prevent the sterilizing gas from diffusing rapidly and failing to fully mix with the water. The sterilizing gas mixes with the water in the water tank 1 to form sterilizing water, and the sterilizing water is supplied to the outside through the gas-liquid discharge device 6. The sterilizing water can be used to sterilize the parts of the toilet that need to be sterilized, thereby improving the sterilization effect.

[0041] The sterilizing gas supply device 5 is an ion generator, installed below and outside the water tank 1. A gas supply pipe 51 penetrates the side wall of the water tank to supply sterilizing gas into the tank. The ion generator produces sterilizing gases such as ozone, plasma, and active oxygen, which mix with water to form sterilizing water. The water diffuses the sterilizing gas, resulting in a wide sterilization range and good effect. In this embodiment, the ion generator is installed below the water tank 1. However, in other embodiments, it can be designed to be installed in a suitable location, such as on the side of the water tank 1.

[0042] See Figures 1 to 5 As shown, to further increase the content of bactericidal gases such as ozone, plasma, and active oxygen in the sterilization water, an aeration element 50 is installed inside the mixing hood 40. One end of the aeration element 50 is equipped with an air inlet 502, which is higher than the preset maximum water level L. H It is connected to the air supply pipe 51. The aeration element 50 is equipped with an aeration core 501. The circumferential surface of the aeration core 501 is provided with multiple aeration ports 504, and the aeration ports 504 are set below the preset maximum water level L.H The aeration port 504 is positioned such that its aperture is much smaller than that of the air inlet 502. The aeration port 504 disperses the sterilizing gas from the air inlet 502 into the water as tiny bubbles. The aeration port 504 is positioned below the preset maximum water level L. H The aeration port 504 is submerged in water, allowing the bactericidal gas to directly enter the water through it. This causes the bactericidal gas to form tiny bubbles in the water, prolonging its residence time and increasing its solubility, thus enhancing the bactericidal effect.

[0043] The aeration element 50 is also provided with a first water inlet 503 and a second water inlet 505. The first water inlet 503 is located on the circumferential side wall of the aeration element 50 and surrounds the aeration port 504. The second water inlet 505 is connected to the air-water inlet 612. When the air-liquid discharge device 6 is not discharging water, the liquid in the inlet pipe 61 tends to be stable. Water in the water tank enters the aeration element 50 through the first water inlet 503. The aeration port 504 is submerged in water, and the bactericidal gas is discharged from the aeration port 504 as tiny bubbles into the water. The bactericidal water formed in this way is retained in the water tank. When the air-liquid discharge device 6 discharges water, the liquid in the inlet pipe 61 flows outward. Water in the water tank enters the aeration element 50 through the first water inlet 503. The aeration port 504 is submerged in water, and the bactericidal gas is discharged from the aeration port 504 as tiny bubbles into the water. The bactericidal water formed in this way is supplied to the external water-using components.

[0044] In addition, a water inlet can be installed on the water inlet pipe 61. The position of the water inlet inside the water tank is lower than that of the air-water inlet 612. When the water level in the water tank is higher than that of the air-water inlet 612, the sterilizing water can enter the water inlet pipe 61 through the air-water inlet 612. When the water level in the water tank is lower than that of the air-water inlet 612, the sterilizing water can be supplied to external water-using components through the water inlet. The position of the water inlet inside the water tank 1 is lower than the preset minimum water level L of the water tank. L This ensures a continuous water supply, with the water tank's preset minimum water level L. L It is controlled by drain valve 3, and the height of the drain outlet of drain valve 3 is the preset minimum water level L of the water tank. L .

[0045] The air-water inlet 612 is located inside the mixing hood 40, and its position within the water tank 1 is at the preset maximum water level L. H and preset minimum water level L L The concentration of sterilizing water in the area where the air-water inlet 612 is located is relatively high, resulting in better sterilization of external water-using components and preventing the water level in the water tank 1 from being discharged below the preset minimum water level L. L .

[0046] In this embodiment, the air supply pipe 51 is connected to the air inlet 502 of the aeration element 50 through the insertion hole 41 at the top of the mixing hood 40. In other embodiments, the air supply pipe 51 can be inserted into the mixing hood 40, and the sterilizing gas is supplied from the sterilizing gas supply device 5 to the aeration element 50 through the pipe between the mixing hood 40 and the air inlet 502.

[0047] Water tank 1 is equipped with an inlet valve 2 and a drain valve 3. A mixing shroud 40 is installed at the top of the overflow pipe 31 of the drain valve 3. A gas chamber 401 extends to the top of the overflow pipe 31 and communicates with it. Water tank 1 forms an overflow channel through the communication between the mixing shroud 40 and the overflow pipe 31. A water inlet 42 is also provided at the top of the mixing shroud 40. The water inlet 42 is connected to the water inlet pipe 21 of the inlet valve 2. The position of the water inlet 42 corresponds to the overflow pipe 31, allowing water from the water inlet pipe 21 to overflow into the overflow pipe 31 via the water inlet 42. The opening at the bottom of the mixing shroud 40 and the communication between the gas chamber 401 and the overflow pipe 31 connect the overflow pipe 31 and the water tank 1, maintaining the normal overflow function of the water tank 1. The inlet valve 2 is existing technology, and its float 22 determines the preset maximum water level L of the water tank 1. H The height.

[0048] The mixing hood 40 is provided with a positioning step 43 to install the mixing hood 40 on the overflow pipe 31. More specifically, the mixing hood 40 covers the top of the overflow pipe 31, and the positioning step 43 is engaged with the top end face of the overflow pipe 31. There is a distance between the top surface of the mixing hood 31 and the top of the overflow pipe 31, which allows the overflow pipe 31 to communicate with the gas chamber 401. Thus, the siphon effect of the water flow from the water inlet 42 and the suction and exhaust purification device can create suction on the bactericidal gas in the gas chamber 401, thereby eliminating and neutralizing odor-causing bacteria. The suction effect of the suction and exhaust purification device on the bactericidal gas in the gas chamber 401 will be described in detail below. The bactericidal gas mixes with the water flow to form bactericidal water, which is then supplied to the sewage chamber of the toilet, so that the water remaining in the sewage chamber can sterilize the sewage chamber.

[0049] The gas-liquid discharge device 6 also includes a water pump 62, which is installed below and outside the water tank 1. The inlet of the water pump 62 is connected to a water inlet pipe 61, which penetrates the side wall of the water tank 1 to supply sterilizing water to the water pump 62. In other embodiments, the water pump 62 can also be a submersible pump installed inside the water tank. In this case, the submersible pump should be lower than the gas-water inlet 612 to prevent it from being exposed above the water surface during operation (except for drainage through the drain valve, the submersible pump will only pump the water level to the height of the gas-water inlet 612, ensuring that the submersible pump is submerged in water). The outlet of the water pump 62 is connected to a water-using component, thereby supplying sterilizing water to the water-using component. The water-using component includes any one or more of a seat sterilization component, a spray gun, and a body rinsing nozzle.

[0050] The water tank 1 is equipped with a suction and exhaust purification device 20, which includes a suction and exhaust fan for drawing gas from the sewage chamber 101 of the toilet body. The suction port of the suction and exhaust fan is connected to the sewage chamber 101 and the overflow pipe 31, thereby connecting to the mixing hood 40 via the overflow pipe 31, so that the suction and exhaust fan can draw sterilizing gas through the overflow pipe 31. The suction and exhaust fan is mounted to the base 32 of the drain valve 3 via a fan mounting assembly. The suction port 201 of the suction and exhaust fan is located on the side of the base. When the suction and exhaust fan is working, it draws gas from the sewage chamber 101 of the toilet body through the drain outlet of the water tank 1 and the flushing channel of the toilet body. This gas becomes foul-smelling due to the excrement present in the sewage chamber 101. The installation relationship between the suction and exhaust fan and the base 32 of the drain valve 3, and the suction of the gas in the sewage chamber 101 through the drain outlet of the water tank 1 and the flushing channel of the toilet body, is existing technology and will not be described in detail here.

[0051] The flushing channel of the toilet body refers to the channel through which the water discharged from the drain outlet 11 of the water tank 1 flows.

[0052] The present invention also indirectly connects the air intake of the exhaust fan to the sterilizing gas supply device 5 through the overflow pipe 31 and the mixing hood 40. This creates a negative pressure suction force on the gas chamber 401 and the gas supply pipe 51 when the exhaust fan is working, allowing the sterilizing gas from the sterilizing gas supply device 5 to be drawn towards the exhaust fan and discharged into the sewage pipe 102, thus sterilizing the area through which the sterilizing gas passes. Since the air intake of the exhaust fan is connected to both the overflow pipe 31 and the sewage chamber 101, the sterilizing gas mixes with the gas from the sewage chamber 101 during the process of drawing gas from the sewage chamber, thereby eliminating bacteria contained in the gas. This disinfects the area through which the sterilizing gas passes and also allows the exhaust fan to discharge sterile gas.

[0053] See Figure 1 , Figures 6 to 7 As shown, the toilet in this embodiment is a seated toilet with a seat ring 7 and a top cover 8; in other embodiments, the toilet is a squat toilet. Figure 8 and Figure 9 ).

[0054] The surface of the seat ring 7 for the user to sit on is defined as the bearing surface 71. The bearing surface 71 is located on the upper surface of the seat ring. In this embodiment, the water-using component is a seat ring sterilization component, which includes a spray nozzle 72. The spray nozzle 72 is used to spray sterilizing water onto the bearing surface 71. The spray nozzle 72 can be located on the upper cover 8 or on the seat ring 7. More specifically: when the spray nozzle 72 is located on the bearing surface 71 of the seat ring 7, it sprays sterilizing water upward when the upper cover 8 is closed, and uses the cover 8 to block the sterilizing water back onto the bearing surface 71, thereby sterilizing the bearing surface 71; when the spray nozzle 72 is located on the upper cover 8, it faces the bearing surface 71, so that it sprays sterilizing water onto the bearing surface 71 when the upper cover 8 is closed. In order to ensure that the disinfectant water is sprayed onto the bearing surface 72 sufficiently and to prevent the disinfectant water from being wasted due to an excessively large spray area (e.g., spraying into the drain cavity in the center of the seat ring), or to prevent the water pressure from being reduced due to an excessively large spray area (which would result in the disinfectant water not being able to spread sufficiently after being sprayed), in this embodiment, the spray nozzles 72 are arranged at intervals along the annular extension direction of the seat ring 7, so that the disinfectant water can be spread by means of the water pressure of the disinfectant water until it covers most or even all of the bearing surface 71.

[0055] See Figure 8 and Figure 9 As shown, the water-using component can also be a spray gun 9. When there are many water-using components, the water pump 62 is equipped with multiple outlets. The water pump controls the water output of any one or more outlets to control the water output of the corresponding water-using component. Alternatively, an electronically controlled valve can be installed at each outlet of the water pump 62. The water output of the corresponding water-using component can be controlled by the cooperation of the water pump and the valve.

[0056] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that the remaining undescribed parts are prior art, and that all changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A toilet, characterized in that, include: A water tank, wherein a gas-liquid mixing device is provided inside the water tank; A sterilizing gas supply device is provided, wherein the sterilizing gas supply device is provided with a gas supply pipe, the gas supply pipe is connected to a water tank for supplying sterilizing gas into the water tank, and the sterilizing gas and water in the water tank are mixed to form sterilizing water; The gas-liquid mixing device includes a mixing hood, which is a downward-opening hood-shaped structure. The upper part of the mixing hood is connected to the gas supply pipe so that the sterilizing gas enters the upper part of the mixing hood. The upper part of the mixing hood is higher than the preset maximum water level of the water tank, and the opening of the mixing hood is lower than the preset maximum water level of the water tank, thereby forming a gas cavity above the water surface. A gas-liquid discharge device includes a water inlet pipe with a gas-water inlet located inside the water tank, which is used to supply the sterilizing water to the water-using components.

2. The toilet according to claim 1, characterized in that: The air-water inlet is located inside the mixing hood, and its position inside the water tank is between the preset maximum water level and the preset minimum water level.

3. A toilet according to claim 2, characterized in that: The gas-liquid discharge device further includes a water pump, the inlet of which is connected to the water inlet pipe, and the outlet of which is connected to the water-using component, thereby supplying the sterilizing water to the water-using component; the water-using component includes any one or more of a seat ring sterilization component, a spray gun, and a human body rinsing spray pipe; the sterilizing gas supply device is an electro-ion generator.

4. A toilet according to claim 2, characterized in that: The mixing hood is equipped with an aeration element, one end of which has an air inlet. The air inlet is higher than the preset maximum water level and connected to the air supply pipe. The aeration element is equipped with an aeration core, which has multiple aeration ports. The aeration ports are located below the preset maximum water level, and the aperture of the aeration ports is much smaller than that of the air inlet. The aeration ports allow the bactericidal gas from the air inlet to disperse as small bubbles and enter the water.

5. A toilet according to claim 4, characterized in that: The aeration element is further provided with a first water inlet and a second water inlet. The first water inlet is disposed on the circumferential sidewall of the aeration element and surrounds the aeration port. The second water inlet is connected to the air-water inlet.

6. A toilet according to claim 1, characterized in that: This toilet is a toilet with a seat and a lid. The surface of the seat for the user to sit on is defined as the seat surface, which is located on the upper surface of the seat. The water-using component is a seat disinfection component, which includes a spray nozzle for spraying disinfectant water onto the seat surface. The spray nozzle can be configured in any of the following ways: (1) The spray nozzle is provided on the bearing surface of the seat ring to spray the disinfectant water upward when the upper cover is closed, and the disinfectant water falls back to the bearing surface by the cover. (2) The spray nozzle is located on the upper cover and faces the bearing surface, so as to spray the bactericidal water onto the bearing surface when the upper cover is closed.

7. A toilet according to claim 6, characterized in that: The water nozzles are arranged along the circumferential extension direction of the seat ring.

8. A toilet according to claim 1, characterized in that: The water tank is equipped with an inlet valve and a drain valve. The mixing shroud is installed at the top of the overflow pipe of the drain valve. The gas chamber extends to the top of the overflow pipe and communicates with the overflow pipe. The water tank forms an overflow channel by means of the communication between the mixing shroud and the overflow pipe. The top of the mixing shroud is also equipped with a water inlet. The water inlet is connected to the water inlet pipe of the inlet valve. The position of the water inlet corresponds to the overflow pipe, so that the water flow from the water inlet pipe can flow to the overflow pipe through the water inlet.

9. A toilet according to claim 8, characterized in that: The mixing hood is provided with a positioning step to install the mixing hood on the overflow pipe. There is a distance between the top surface of the mixing hood and the top of the overflow pipe. This distance enables the overflow pipe to communicate with the gas chamber, so that the water flow from the water inlet can create suction on the bactericidal gas in the gas chamber.

10. A toilet according to claim 8, characterized in that: The water tank is equipped with a suction and exhaust purification device, which includes a suction and exhaust fan for drawing gas from the sewage chamber of the toilet body. The suction port of the suction and exhaust fan is connected to the sewage chamber and the overflow pipe, thereby connecting to the mixing hood through the overflow pipe, so that the suction and exhaust fan can draw the sterilizing gas through the overflow pipe.

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