Sterilization toilet stool

Abstract

The utility model relates to the technical field of bathroom accessories, in particular to a sterilization toilet stool which comprises a toilet stool body, a water tank, a water inlet valve and a water outlet valve, the water inlet valve and the water outlet valve are arranged in the water tank, the water inlet valve is provided with a water supplementing pipe, the water outlet valve is provided with an overflow pipe, and the water supplementing pipe is connected to the overflow pipe to supply water to the toilet stool body through the overflow pipe to form water seal. The sterilization device further comprises a sterilization gas supply device which comprises a gas inlet pipe for sterilization gas to penetrate through, the gas inlet pipe is connected to the overflow pipe, and the sterilization gas supply device is used for supplying the sterilization gas to the overflow pipe through the gas inlet pipe. Therefore, the sterilizing gas and the water from the water replenishing pipe converge and are mixed to supply sterilizing water to the toilet bowl body. Sterilization water is supplied to the sewage discharging cavity of the toilet bowl body through the flushing water channel, so that the flushing water channel and the sewage discharging cavity of the toilet bowl body are sterilized, bacteria are prevented from breeding in the toilet bowl body, and the toilet bowl is prevented from becoming a pollution source of germs.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bathroom technology, specifically relates to a sterilization toilet. BACKGROUND

[0002] Toilet includes toilet, squatting toilet and urinal, toilet will be recharged after flushing to facilitate the formation of water seal at the bottom, flushing the water is tap water, can not kill bacteria in the toilet, long-term use makes the toilet become the pollution source of bacteria. Secondly, in order to realize the deodorization of toilet, the existing technology exists using suction fan to separate the odor in toilet sewage cavity, and the odor contains a large number of bacteria from excrement, when the suction fan stops, part of the bacteria will stay in the air duct, the air duct is communicated with the toilet sewage cavity, thereby polluting the toilet. SUMMARY

[0003] The utility model discloses a kind of sterilization toilets, to solve the problem that the above-mentioned large amount of bacteria in toilet causes pollution toilet even infect user.

[0004] To achieve the above object, the technical scheme of the utility model is as follows: a sterilization toilet, including toilet body, water tank and water inlet valve and drain valve arranged in the water tank, the water inlet valve is provided with water replenishment pipe, the drain valve is provided with overflow pipe, the water replenishment pipe is connected to the overflow pipe, for supplying water to the toilet body through the overflow pipe to form water seal;It further includes a sterilization gas supply device, the sterilization gas supply device includes an inlet pipe for sterilization gas to pass through, the inlet pipe is connected to the overflow pipe, the sterilization gas supply device is used to supply sterilization gas to the overflow pipe through the inlet pipe, so that the sterilization gas and water from the water replenishment pipe are mixed to supply sterilization water to the toilet body.

[0005] In one embodiment, the overflow pipe is provided with a connecting piece, the connecting piece is provided with a water replenishment joint and a gas joint, the inside of the water replenishment joint and the gas joint is communicated, the water replenishment pipe is connected to the water replenishment joint, the inlet pipe is connected to the gas joint, so that the water replenishment pipe and the inlet pipe are indirectly connected to the overflow pipe through the connecting piece, and the negative pressure formed by the water flow of the water replenishment pipe makes the sterilization gas be supplied to the inside of the connecting piece and mixed with water to form the sterilization water.

[0006] In one embodiment, the inside of the connecting piece is further provided with a mixing part, the mixing part is connected to the gas joint and the water replenishment joint respectively, along the water flow or airflow direction, the mixing part is located in the downstream direction of the gas joint and the water replenishment joint, and the inner diameter of the mixing part is greater than or equal to the sum of the inner diameters of the gas joint and the water replenishment joint.

[0007] In one embodiment, the connecting member is a connecting cover with an open bottom end, which is arranged on the top of the overflow pipe and defines an outer top surface of the top end of the connecting cover as an outer top surface and an inner top surface opposite to the outer top surface as an inner top surface, the gas joint and the water supplement joint are arranged on the outer top surface of the connecting cover, and the mixing part is arranged on the inner top surface of the connecting cover.

[0008] In one embodiment, the sterilizing gas supply device is provided with a gas pump for supplying the sterilizing gas to the overflow pipe through the gas inlet pipe.

[0009] In one embodiment, the sterilizing gas supply device is provided with a gas pump for supplying the sterilizing gas to the overflow pipe through the gas inlet pipe.

[0010] In one embodiment, the top end of the overflow pipe is provided with a connecting member, the connecting member is provided with a gas joint, the gas inlet pipe is connected to the gas joint, so that the gas inlet pipe is indirectly connected to the overflow pipe through the connecting member, the connecting member is a connecting cover with an open bottom end, the gas joint is arranged on the connecting cover at a position higher than the overflow port of the top end of the overflow pipe, the connecting cover is arranged on the outer circumferential side of the top of the overflow pipe, the bottom end of the connecting cover is lower than the top end of the overflow pipe, and the space between the inner side of the connecting cover and the outer side of the overflow pipe forms a fluid isolation chamber, so that the inner and outer sides of the connecting cover are gas-isolated by means of the water in the water tank spreading to the fluid isolation chamber.

[0011] In one embodiment, the connecting cover is provided with a limiting part, the limiting part is provided with a water passing hole, and the limiting part abuts against the top end of the overflow pipe to make the water passing hole communicate with the overflow port of the top end of the overflow pipe.

[0012] In one embodiment, the limiting part includes a plurality of claws extending from the top end of the connecting cover to the open end, the plurality of claws are arranged at intervals along the circumferential direction of the overflow pipe, the distal end of the claw is used for inserting into the overflow pipe to make the connecting cover connected to the overflow pipe, and the claw is in interference fit with the overflow pipe, the middle part of the claw is further provided with a step, the step is used for abutting against the top end surface of the overflow pipe, so that the claw forms the installation limiting part of the connecting cover, and the water passing hole is formed between adjacent claws.

[0013] In one embodiment, the suction and exhaust fan forms a mounting relationship with the base of the drain valve through a fan mounting assembly, the suction port of the suction and exhaust fan is arranged on the base, the base is provided with a hydraulically driven valve, the valve is arranged on the side of the base, the valve comprises a rotating shaft part and a control part and an opening and closing part arranged on both sides of the rotating shaft part, the control part is used for controlling the rotation of the valve under the driving of the water flow formed by the drain valve, so that the opening and closing part closes the suction port, and the opening and closing part is used for driving the valve to rotate under the action of gravity to open the suction port.

[0014] In one embodiment, the sterilization gas is ozone or chlorine; and the toilet is a toilet or a squatting toilet or a urinal.

[0015] The utility model has the advantages of:

[0016] 1. The air inlet pipe of the sterilization gas supply device and the water supply pipe of the water inlet valve are connected to the overflow pipe, sterilization gas is supplied to the overflow pipe, and sterilization water is formed by mixing sterilization gas and water during the water tank water supply process, the sterilization water is supplied to the sewage chamber of the toilet body through the flushing water channel, so that the flushing water channel and the sewage chamber of the toilet body are subjected to sterilization treatment, bacteria breeding in the toilet body is prevented, and the toilet is prevented from becoming a source of bacterial pollution.

[0017] 2. The water supply pipe and the air inlet pipe are connected to the connecting piece, a negative pressure is formed by the water flow of the water supply pipe, sterilization gas is mixed with the water flow in the overflow pipe under the action of the negative pressure, a gas pump or other positive pressure device does not need to be arranged at the sterilization gas supply device to supply sterilization gas, the structure of the sterilization gas supply device is simplified, and the sterilization gas supply timing is more reasonable.

[0018] 3. The air pump is arranged, sterilization gas can be supplied to the overflow pipe by the pressure of the air pump, and therefore the air inlet pipe can be arranged to be longer, and the installation position requirement of the sterilization gas supply device is lower.

[0019] 4. The suction port of the suction and exhaust fan is communicated with the sewage chamber and the overflow pipe of the toilet, sterilization gas can be sucked into the air duct of the suction and exhaust fan at the same time as the gas in the sewage chamber is sucked, the air duct and the gas from the sewage chamber are sterilized, bacteria from the sewage chamber and the sewage pipe are prevented from remaining and polluting the toilet, and the toilet is further prevented from becoming a source of bacterial pollution. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of an embodiment of the utility model.

[0021] Figure 2 is a perspective view of part of the structure of an embodiment of the utility model.

[0022] Figure 3is another perspective view of part structure of the embodiment of the utility model.

[0023] Figure 4 is the top view of the embodiment of the utility model.

[0024] Figure 5 is Figure 4 A-A section view of.

[0025] Figure 6 is Figure 5 part structure diagram of.

[0026] Figure 7 is Figure 4 B-B section view of.

[0027] Figure 8 is the perspective view of the connecting cover of the embodiment of the utility model.

[0028] Figure 9 is another perspective view of the connecting cover of the embodiment of the utility model.

[0029] Wherein: 1 toilet body, 11 sewage cavity, 12 sewage pipeline, 2 water tank, 21 water outlet, 3 water inlet valve, 31 water supplement pipe, 4 drain valve, 41 overflow pipe, 411 fixed pipe, 412 adjusting pipe, 42 base, 43 drain outlet, 5 air inlet pipe, 6 connecting cover, 60 fluid isolation cavity, 61 water supplement connector, 62 gas connector, 63 mixing part, 64 limiting part, 641 water passing hole, 642 claw, 6420 step, 7 air suction and exhaust fan, 70 air duct, 71 air suction port, 8 fan mounting assembly, 9 valve, 91 rotating shaft part, 92 control part, 920 water receiving surface, 93 opening and closing part. DETAILED DESCRIPTION

[0030] To further illustrate the various embodiments, the utility model provides with the drawing. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiment, and can be combined with the related description of the specification to explain the operation principle of the embodiment. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model. The components in the drawing are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0031] Referring to Figures 1 to 3 As shown in the utility model discloses a sterilization toilet, including toilet body 1 and water tank 2, in this embodiment, taking the toilet as an example to illustrate, in other embodiments, the toilet can also be a squat toilet or urinal, specifically refers to the toilet, squat toilet or urinal with water tank.

[0032] The water tank 2 is provided with a water inlet valve 3 and a water outlet valve 4, the water inlet valve 3 is provided with a water supplement pipe 31, the water outlet valve 4 is provided with an overflow pipe 41, the water supplement pipe 31 is connected to the overflow pipe 41, so as to supply water to the toilet body 1 through the overflow pipe 41 to form a water seal.

[0033] Referring to Figures 2 to 9 The utility model also includes a sterilization gas supply device (not shown in the figure), the sterilization gas supply device includes an air inlet pipe 5 for discharging sterilization gas, the air inlet pipe 5 is connected to the overflow pipe 41, the sterilization gas supply device is used to supply sterilization gas to the overflow pipe 41 through the air inlet pipe 5, so that the sterilization gas mixes with water from the water supplement pipe 31 to supply sterilization water to the toilet body. When the water level in the water tank 2 drops, most of the water flow of the water inlet valve 3 is used to fill the water tank 2 until the water level of the water tank 2 reaches the preset high water level, a small part of the water flow of the water inlet valve 3 flows to the overflow pipe 41 through the water supplement pipe 31, then flows to the sewage chamber 11 of the toilet body 1 through the overflow pipe 41 and the flushing water channel of the toilet body 1, and finally forms a water seal in the sewage chamber 11 under the action of the sewage pipe 12 of the toilet body 1. In the process of forming a water seal by the water supplement pipe 31 discharging water to the toilet body 1 through the overflow pipe 41, sterilization gas is also supplied to the overflow pipe 41 through the air inlet pipe 5, so that the sterilization gas mixes with the flowing water to form sterilization water, and the place where the sterilization water flows is sterilized, which is the overflow pipe 41, the flushing water channel of the toilet body 1 for flushing, and the sewage chamber 11 of the toilet body 1, so that the bacteria in the sewage chamber 11 are eliminated to achieve the purpose of sterilizing the toilet, prevent the toilet body 1 from having a large number of bacteria to become a source of bacterial pollution, and improve the cleanliness of the toilet.

[0034] The overflow pipe 41 is provided with a connecting piece, which is a connecting cover 6 with an open bottom in this embodiment. The connecting cover 6 is arranged on the top of the overflow pipe 41, and the outer side of the top end face of the connecting cover 6 is defined as an outer top face, and the inner side opposite to the outer top face is defined as an inner top face. The outer top face is provided with a water supplement connector 61 and a gas connector 62. The water supplement connector 61 and the gas connector 62 are in communication with each other. The water supplement pipe 31 is connected to the water supplement connector 61, and the air inlet pipe 5 is connected to the gas connector 62, so that the water supplement pipe 31 and the air inlet pipe 5 are indirectly connected to the overflow pipe 41 through the connecting cover 6. The negative pressure formed by the water flow of the water supplement pipe 31 causes the sterilization gas to be supplied into the connecting cover 6 and mixed with the water to form sterilization water. In order to further promote the mixing of the water flow and the sterilization gas, the connecting cover 6 is further provided with a mixing part 63 connected to the gas connector 62 and the water supplement connector 61 and located downstream of the gas connector 62 and the water supplement connector 61 along the water flow or the gas flow. The inner diameter of the mixing part 63 is greater than the sum of the inner diameters of the gas connector 62 and the water supplement connector 61. In this embodiment, the water supplement connector 61 and the gas connector 62 are arranged on the outer top face of the connecting cover 6, so that the water supplement pipe 31 and the air inlet pipe 5 are respectively inserted into the water supplement connector 61 and the gas connector 62. The mixing part 63 is arranged on the inner top face of the connecting cover 6, so as to reduce the energy loss of the water flow. In addition, the inner diameter of the mixing part 63 is relatively large, so that a negative pressure area is formed between the water flow and the inner wall of the mixing part 63 when the water flow flows from the water supplement connector 61 to the mixing part 63. The negative pressure can generate suction force on the gas in the air inlet pipe 5, so that the sterilization gas in the sterilization gas supply device is sucked into the mixing part 63 and fully mixed with the water flow in the mixing part 63.

[0035] In this embodiment, the connecting cover 6 is arranged on the top of the overflow pipe 41. Since the water supplement pipe 31 of the existing water inlet valve 3 is mostly arranged on the top of the water inlet valve 3, arranging the connecting cover on the top of the overflow pipe 41 makes the length of the water supplement pipe 31 shorter and the installation connection simpler. In other embodiments, the connecting cover 6 can also be arranged in the middle of the overflow pipe 41.

[0036] Referring to Figures 5 to 7 As shown in the drawings, the utility model also includes a suction and exhaust fan 7 for sucking the gas in the sewage cavity 11 of the toilet body 1. The suction port 71 of the suction and exhaust fan 7 is in communication with the sewage cavity 11 and the overflow pipe 41, so as to be in communication with the air inlet pipe 5 through the overflow pipe 41, so that the suction and exhaust fan 7 sucks the sterilization gas through the overflow pipe 41.

[0037] The suction and exhaust fan 7 is connected to the base 42 of the drain valve 4 through the fan mounting assembly 8, and the air inlet 71 of the suction and exhaust fan 7 is arranged on the side of the base. When the suction and exhaust fan 7 works, the gas in the sewage cavity 11 of the toilet body 1 is sucked through the water outlet 21 of the water tank 2 and the flushing water channel of the toilet body 1, and the gas is odor due to the excrement in the sewage cavity 11. The suction and exhaust fan 7 is connected to the base 42 of the drain valve 4 and sucks the gas in the sewage cavity 11 through the water outlet 21 of the water tank 2 and the flushing water channel of the toilet body 1, which is the prior art and will not be described here.

[0038] The flushing water channel of the toilet body 1 refers to the channel through which the water flow discharged by the water tank 2 flows.

[0039] The air inlet 71 of the suction and exhaust fan 7 is indirectly connected to the air inlet pipe 5 through the overflow pipe 41, so that a negative pressure suction force can be formed on the air inlet pipe 5 when the suction and exhaust fan 7 works, and the sterilization gas of the sterilization gas supply device can be sucked to the direction of the suction and exhaust fan 7 and discharged to the sewage pipeline 12, so that the area through which the sterilization gas passes is sterilized. Since the air inlet 71 of the suction and exhaust fan 7 is connected to the overflow pipe 41 and the sewage cavity 11, the sterilization gas is mixed with the gas from the sewage cavity 11 during the process of sucking the gas in the sewage cavity, so that the bacteria contained in the gas are eliminated, on the one hand, the area through which the sterilization gas passes is disinfected, and on the other hand, the sterile gas is discharged by the suction and exhaust fan 7. The area through which the sterilization gas passes during the working process of the suction and exhaust fan 7 includes the air inlet pipe 5, the overflow pipe 41, the water outlet 43 of the drain valve 4, the air inlet 71 and the air duct 70 of the suction and exhaust fan 7. The flushing water channel of the toilet body 1 is sterilized by the sterilization water during the water supplementing process. The air duct 70 of the suction and exhaust fan 7 is a channel for gas flow between the air inlet 71 and the sewage pipeline 12, and the airflow formed under the suction of the suction and exhaust fan 7 flows in the channel to the sewage pipeline 12.

[0040] The air outlet end of the suction and exhaust fan 7 of the embodiment is connected to the sewage pipeline 12 of the toilet, and more accurately, is connected to the end of the sewage pipeline 12 close to the sewer, so that the sewage cavity is isolated from the gas discharged from the air outlet end of the suction and exhaust fan 7 by the water seal of the sewage cavity, and the gas is discharged to the sewer. In other embodiments, the air outlet end of the suction and exhaust fan 7 can also be connected to other positions, such as the exhaust pipeline of the bathroom, so that the gas in the sewage cavity 11 is discharged to the outside of the bathroom.

[0041] Since the suction and exhaust fan 7 sucks the sterilization gas of the sterilization gas supply device by negative pressure, the conventional overflow pipe 41 is designed as a top opening structure so that the water level in the water tank 2 can be timely overflowed through the overflow opening at the top of the overflow pipe 41 when the water level is too high. The existence of the overflow opening can cause the gas above the water level in the water tank to be sucked into the overflow pipe 41 through the overflow opening, which can destroy the suction of the sterilization gas of the sterilization gas supply device by the suction and exhaust fan 7, so that the sterilization gas cannot enter the overflow pipe 41 by the suction of the suction and exhaust fan 7. Therefore, the overflow opening of the overflow pipe 41 must be closed, but closing the overflow opening will affect its overflow function and cannot guarantee that the water level in the water tank 2 is lower than the preset water level.

[0042] Therefore, in the embodiment, the connecting cover 6 is covered on the outer circumferential side of the top of the overflow pipe 41, and the bottom end of the connecting cover 6 is lower than the top end of the overflow pipe 41, and the space between the inner side of the connecting cover 6 and the outer side of the overflow pipe 41 forms a fluid isolation chamber 60, so that the gas isolation is formed inside and outside the connecting cover by means of the water in the water tank 2 spreading to the fluid isolation chamber 60. In order to enable the sterilization gas to smoothly enter the overflow pipe 41, the gas joint 62 should be arranged at a position of the connecting cover 6 which is higher than the overflow opening at the top end of the overflow pipe 41. In the embodiment, the gas joint 62 is arranged on the top surface of the connecting cover 6, and in other embodiments, the gas joint 62 arranged on the side surface of the connecting cover 6 and higher than the overflow opening is also feasible.

[0043] In addition, the gas joint 62 is not limited to be arranged in the connecting cover 6 at the top of the overflow pipe 41, and in other embodiments, the gas joint 62 arranged on the side wall of the overflow pipe 41 is also feasible, for example, a hole is opened on the side wall of the overflow pipe 41 for mounting the air inlet pipe 5, and the water replenishing pipe 31 can also be arranged on the side wall of the overflow pipe 41 to meet the above-mentioned suction of the sterilization gas during water replenishing. However, attention should be paid to the gas isolation of the overflow opening at the top end of the overflow pipe 41. In addition to the above-mentioned connecting cover 6 (at this time, the connecting cover 6 does not arrange the water replenishing joint 61 and the gas joint 62), the overflow opening can also be closed by an electric valve to form gas isolation, and the opening and closing of the electric valve is associated with the water level sensor of the water tank.

[0044] Reference Figures 5 to 9As shown, in order to retain the overflow function of the overflow pipe 41, the connecting cover 6 is internally provided with a limiting portion 64, the limiting portion 64 is provided with a water passing hole 641, the limiting portion 64 abuts against the top end of the overflow pipe 41 to make the water passing hole 641 communicate with the overflow port of the top end of the overflow pipe 41. More specifically, the limiting portion 64 of the present embodiment comprises a plurality of claws 642 extending from the top end of the connecting cover 6 towards the opening, the plurality of claws 642 are arranged along the ring direction of the overflow pipe 41, the tips of the claws 642 are used to be inserted into the overflow pipe 41 to make the connecting cover 6 connected to the overflow pipe 41, and the claws 642 form an interference fit with the overflow pipe 41, so that the connecting cover 6 is fixedly installed at the top end of the overflow pipe 41, preventing the connecting cover 6 from floating and moving under the water level in the water tank. The claws 642 are arranged at intervals, which is beneficial to deform the tips of the claws 642 inward to be inserted into the interior of the overflow pipe 41 when installing the connecting cover 6, and the claws are opened after installation is completed, which is beneficial to the fixation of the connecting cover 6. The middle part of the claw 642 is further provided with a step 6420, the step 6420 is used to abut against the top end face of the overflow pipe 41, so that the claw 642 forms the installation limiting of the connecting cover 6, preventing the connecting cover 6 from being installed too low. The water passing hole 641 of the present embodiment is formed between the adjacent claws 642.

[0045] In other embodiments, the limiting portion 64 can also be a limiting strip extending radially in the interior of the connecting cover 6, the limiting strip abuts against the top end face of the overflow pipe 41, and the adjacent limiting strips form the water passing hole.

[0046] The water replenishing connector 61 and the gas connector 62 of the present embodiment are both arranged at the top of the connecting cover 6, and the connecting cover 6 covers the top end of the overflow pipe 41, so as to ensure that the water replenishing connector 61 and the gas connector 62 are higher than the water level of the water tank. In other embodiments, it is also feasible that the water replenishing connector 61 and the gas connector 62 are arranged at the side of the connecting cover 6, but it should be noted that they are higher than the water level of the water tank.

[0047] The overflow pipe 41 comprises a fixed pipe 411 arranged at the base 42 and an adjusting pipe 412 arranged in the fixed pipe 411, adjusting the adjusting pipe 412 up and down can adjust the height of the overflow pipe 41, so as to control the highest water level of the water tank 2. The connecting cover 6 of the present embodiment is arranged at the top end of the adjusting pipe 412, and the connection between the fixed pipe 411 and the adjusting pipe 412 is a sealed connection formed by a sealing ring therebetween (the sealing ring is not shown in the figure).

[0048] Referring to Figures 5 to 6As shown, when the drain valve 4 is in the draining state, the suction and exhaust fan 7 also has a negative pressure suction force on the water flow, so the water flow has the risk of being sucked into the suction port 71 and then into the suction and exhaust fan 7. In order to prevent this phenomenon, a hydraulically driven valve 9 is arranged at the base 42 of the drain valve 4. The valve 9 is arranged to rotate on the base 42, and the valve 9 includes a rotating shaft portion 91 and control portion 92 and opening and closing portion 93 arranged on both sides of the rotating shaft portion 91. The control portion 92 is used to control the rotation of the valve 9 under the driving of the water flow formed by the drain valve 4, so that the opening and closing portion 93 closes the suction port 71. The opening and closing portion 93 is used to drive the rotation of the valve 9 under the action of gravity to open the suction port 71. The suction port 71 of the embodiment is arranged downward, and the control portion 92 has a water receiving surface 920 for receiving the water flow, so that under the driving action of the water flow, the control portion 92 rotates downward, and at the same time the opening and closing portion 93 rotates upward to close the suction port 71. When the drain valve 4 closes to end the draining state of the water tank, the opening and closing portion 93 resets under the action of gravity to open the suction port 71.

[0049] In the above embodiment, the sterilization gas is supplied to the overflow pipe 41 by the water flow or the negative pressure formed by the suction and exhaust fan. In other embodiments, the sterilization gas can also be supplied to the overflow pipe 41 by positive pressure pushing. Specifically, a gas pump can be arranged in the sterilization gas supply device, and the gas pump is opened to supply the sterilization gas to the overflow pipe 41 through the air inlet pipe 5 when necessary (for example, when the water replenishing pipe 31 replenishes water to the toilet body 1 and when the suction and exhaust fan is working). In the mode of sucking the sterilization gas by the water flow and the negative pressure formed by the suction and exhaust fan, in order to ensure that the water flow has sufficient suction force on the sterilization gas, the air inlet pipe 5 should be arranged to be relatively short. When the gas pump is used to supply the sterilization gas, the gas pump can form a stable positive pressure to push the sterilization gas, so the air inlet pipe 5 can be arranged to be relatively long, making the arrangement position of the sterilization gas supply device more flexible. In addition, the mode of sucking the sterilization gas by the water flow and the negative pressure formed by the suction and exhaust fan in the above embodiment is more simple, the structure of the sterilization gas supply device is simpler without the need to arrange the gas pump, and the gas pump does not need to be controlled to start and stop according to the timing of water replenishing and opening of the suction and exhaust fan, so the control is simpler and more accurate.

[0050] The sterilization gas is ozone or chlorine, both of which can be mixed with water to form sterilization water with sterilization function.

[0051] It should be noted that the position of the sterilization gas supply device is not limited to the inside or outside of the water tank 2. When the waterproof performance of the sterilization gas supply device is sufficient, it can be arranged inside the water tank 2 to make the outside of the toilet more beautiful and facilitate the arrangement of the air inlet pipe 5. If the waterproof performance of the sterilization gas supply device is insufficient, it can also be suspended outside the water tank 2, and it is arranged in the water tank 2 to facilitate the maintenance and replacement of the sterilization gas supply device.

[0052] The working process of the utility model is as follows:

[0053] When the user uses the toilet and does not need to flush, the air exhaust fan 7 starts to discharge the gas in the sewage cavity 11 to the sewage pipeline 12 and then to the sewer, at the same time, the negative pressure suction force of the air exhaust fan 7 sucks the sterilization gas to the position where the air exhaust fan 7 is located, so that the gas from the sewage cavity 11 is sterilized.

[0054] When the water needs to be flushed, the water valve 4 opens to discharge the water in the water tank 2 to the sewage cavity 11 of the toilet body 1, at this time, the valve 9 closes the air inlet 71 under the action of the water flow, the toilet performs normal flushing, at this time, the water level of the water tank decreases. At the same time when the water level of the water tank decreases, the water inlet valve 3 starts to supply water, the water supply pipe 31 discharges water to the overflow pipe 41, the water flow from the water supply pipe 31 forms negative pressure in the connecting cover 6, forms siphon with the sterilization gas, so that the sterilization gas enters the mixing part 63 of the connecting cover 6 and mixes with the water to form sterilization water, the sterilization water is supplied to the sewage cavity 11 of the toilet body to flush the sewage cavity 11 and most of it remains in the sewage cavity 11 to form a water seal, and the sterilization water sterilizes the flushing water channel and the sewage cavity 11 of the toilet body 1.

[0055] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, those skilled in the art should understand that the remaining unexplained part is the prior art, and various changes made to the utility model in form and detail without departing from the spirit and scope of the utility model defined in the appended claims, all fall within the protection scope of the utility model.

Claims

1. A germicidal toilet characterized by comprising: The toilet comprises a toilet body, a water tank, a water inlet valve and a water outlet valve arranged in the water tank, the water inlet valve is provided with a water supplement pipe, the water outlet valve is provided with an overflow pipe, the water supplement pipe is connected to the overflow pipe for supplying water to the toilet body through the overflow pipe to form a water seal, and the toilet further comprises a sterilization gas supply device, the sterilization gas supply device comprises an air inlet pipe for the sterilization gas to pass through, the air inlet pipe is connected to the overflow pipe, and the sterilization gas supply device is used for supplying the sterilization gas to the overflow pipe through the air inlet pipe so that the sterilization gas is mixed with water from the water supplement pipe to supply sterilization water to the toilet body.

2. A germicidal toilet according to claim 1, characterized in that: The overflow pipe is provided with a connecting piece, the connecting piece is provided with a water supplement joint and a gas joint, the inside of the water supplement joint and the gas joint is communicated, the water supplement pipe is connected to the water supplement joint, and the air inlet pipe is connected to the gas joint, so that the water supplement pipe and the air inlet pipe are indirectly connected to the overflow pipe through the connecting piece, and the sterilization gas is supplied to the inside of the connecting piece and mixed with water to form the sterilization water by virtue of the negative pressure formed by the water flow of the water supplement pipe.

3. A germicidal toilet according to claim 2, characterized in that: The inside of the connecting piece is further provided with a mixing part, the mixing part is connected to the gas joint and the water supplement joint respectively, and the mixing part is located in the downstream direction of the gas joint and the water supplement joint along the water flow or gas flow direction, and the inner diameter of the mixing part is greater than or equal to the sum of the inner diameters of the gas joint and the water supplement joint.

4. A germicidal toilet according to claim 3, characterized in that: The connecting piece is a connecting cover with an open bottom end, the connecting cover is arranged at the top of the overflow pipe, the outer side of the top end face of the connecting cover is defined as an outer top face, and the inner side opposite to the outer top face is defined as an inner top face, the gas joint and the water supplement joint are arranged on the outer top face of the connecting cover, and the mixing part is arranged on the inner top face of the connecting cover.

5. The germicidal toilet according to claim 1, wherein: The sterilization gas supply device is provided with a gas pump, and the gas pump is used for supplying the sterilization gas to the overflow pipe through the air inlet pipe.

6. A germicidal toilet according to claim 1, characterized by: The toilet further comprises an air suction and exhaust fan for sucking the gas in a sewage cavity of the toilet body, and the air suction and exhaust fan is provided with an air suction port, the air suction port is communicated with the sewage cavity and the overflow pipe, the air inlet pipe is communicated with the air inlet pipe by virtue of the overflow pipe, and the air suction and exhaust fan sucks the sterilization gas through the overflow pipe.

7. A germicidal toilet according to claim 6, characterized in that: The top end of the overflow pipe is provided with a connecting piece, the connecting piece is provided with a gas joint, the air inlet pipe is connected to the gas joint, so that the air inlet pipe is indirectly connected to the overflow pipe through the connecting piece, the connecting piece is a connecting cover with an open bottom end, the gas joint is arranged on the connecting cover at a position higher than the overflow port of the top end of the overflow pipe, the connecting cover is arranged on the outer circumferential side of the top of the overflow pipe, the bottom end of the connecting cover is lower than the top end of the overflow pipe, and the space between the inner side of the connecting cover and the outer side of the overflow pipe forms a fluid isolation cavity, so that the inner and outer sides of the connecting cover are gas-isolated by virtue of the water in the water tank spreading to the fluid isolation cavity.

8. A germicidal toilet according to claim 7, characterized in that: The connecting cover is internally provided with a limiting part, the limiting part is provided with a water passing hole, the limiting part abuts against the top end of the overflow pipe to make the water passing hole communicate with the overflow port of the top end of the overflow pipe.

9. A germicidal toilet according to claim 8, characterized in that: The limiting part comprises a plurality of claws extending from the top end of the connecting cover to the opening, the plurality of claws are arranged along the ring direction of the overflow pipe, the ends of the claws are used for inserting into the overflow pipe to make the connecting cover connect to the overflow pipe, the claws form an interference fit with the overflow pipe, the middle part of the claws is further provided with a step, the step is used for abutting against the top end surface of the overflow pipe, so that the claws form the installation limiting of the connecting cover, and the water passing hole is formed between the adjacent claws.

10. The germicidal toilet according to claim 6, characterized in that: The air suction and exhaust fan forms an installation relationship with the base of the drain valve through the fan installation assembly, the air suction port of the air suction and exhaust fan is arranged on the side of the base, the base is provided with a hydraulic driven valve, the valve is rotationally arranged on the base, the valve comprises a rotating shaft part and a control part and an opening and closing part separately arranged on both sides of the rotating shaft part, the control part is used for controlling the rotation of the valve under the water flow driving of the drain valve to make the opening and closing part close the air suction port, and the opening and closing part is used for driving the rotation of the valve under the action of gravity to open the air suction port.

11. A germicidal toilet according to any one of claims 1 to 10, characterized in that: The sterilization gas is ozone or chlorine gas; the toilet is a toilet or a squatting pan, a urinal.

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