Toilet odor removal system

Abstract

The utility model discloses a kind of toilet odor removal systems, the odor in the basin cavity of toilet is discharged into sewage pipeline after being driven by fan through suction line and exhaust line, and completely eliminates odor. Check valve for preventing odor backflow using water seal mode is arranged on the exhaust line, the odor in the exhaust line before the check valve is first introduced to the bottom of the second chamber of water cup through air guide pipe, and after the odor leaves the air guide pipe, it rises to the liquid level of the second chamber of water cup in the form of bubble, and finally returns to the exhaust line after the check valve, water in the second chamber is added by the first chamber of water cup, and the first chamber is watered using the water inlet valve of toilet, to avoid dryness leading to water seal failure.

Description

Technical Field

[0001] This utility model relates to a toilet deodorization system. Background Technology

[0002] The odor people smell when defecating is mainly due to substances like indole, skatole, hydrogen sulfide, and volatile fatty acids found in feces. Smart toilets typically use a fan to draw the odor into a duct, where it is filtered through materials like activated carbon and diatomaceous earth before being released back into the air. However, this method of deodorizing by filtering the air has several problems: First, it's incomplete and cannot completely eliminate the odor. Many filter materials can only filter one or two types of odors, not all of them simultaneously. The filtered odor is then released back into the air, causing secondary air pollution. Second, it requires significant consumables. Deodorizing materials are generally consumables that need to be replaced over time, leading to high costs, frequent replacements, and inconvenience. Utility Model Content

[0003] This utility model provides a toilet odor deodorization system, which overcomes the shortcomings of the prior art. The technical solution adopted by this utility model to solve its technical problem is as follows:

[0004] A toilet odor control system includes an exhaust pipe, a fan, and an exhaust pipe. The air inlet of the exhaust pipe connects to the toilet's basin cavity. The fan connects the air outlet of the exhaust pipe and the air inlet of the exhaust pipe. The air outlet of the exhaust pipe connects to a sewage pipe. The system also includes a check valve installed in the exhaust pipe. The exhaust pipe is divided into a front exhaust pipe and a rear exhaust pipe, with the check valve as the boundary. The check valve is located inside the toilet's tank and includes a water cup and an air guide tube. The water cup has a first chamber and a second chamber connected at the bottom. The upper part is provided with a water inlet, the height of which is lower than the water level in the tank when the water inlet valve of the toilet is closed. The air inlet of the air guide pipe is connected to the air outlet of the front exhaust pipe. The air outlet of the air guide pipe extends into the second chamber, and the height of the air outlet of the air guide pipe is lower than the height of the water inlet. The opening at the top of the second chamber is connected to the air inlet of the rear exhaust pipe. The odor in the basin cavity is discharged into the sewage pipe after passing through the suction pipe, the front exhaust pipe, the air guide pipe, the water cup and the rear exhaust pipe in sequence under the drive of the fan.

[0005] In a preferred embodiment, the height of the air outlet end of the air duct is not lower than the height of the channel connecting the bottoms of the first chamber and the second chamber.

[0006] In a preferred embodiment, the outlet end of the air duct is positioned upwards.

[0007] In a preferred embodiment: the air outlet of the air duct enters the first chamber through the water inlet, and then extends into the second chamber through the channel connecting the bottom of the first chamber and the second chamber.

[0008] In a preferred embodiment, the water cup and the air duct are connected together.

[0009] In a preferred embodiment, the height of the water inlet is lower than the lowest liquid level in the toilet tank after drainage.

[0010] In a preferred embodiment: the fan is installed inside the toilet seat cover, or inside the ceramic body of the toilet, or on the water tank, or connected to the check valve.

[0011] A toilet odor control system includes an exhaust pipe, a fan, and an exhaust pipe. The air inlet of the exhaust pipe connects to the toilet bowl cavity. The fan connects the air outlet of the exhaust pipe and the air inlet of the exhaust pipe. The air outlet of the exhaust pipe connects to a sewage pipe. The system also includes a check valve installed in the exhaust pipe. The exhaust pipe is divided into a front exhaust pipe and a rear exhaust pipe by the check valve. The check valve includes a water cup and a vent pipe. The water cup has a first chamber and a second chamber connected at their bottoms. The first chamber has a water inlet at its upper part. When the toilet's inlet valve replenishes the toilet tank, some water flows into the water cup through the inlet. The air inlet of the vent pipe is connected to the air outlet of the front exhaust pipe. The air outlet of the vent pipe extends into the second chamber, and the height of the air outlet is lower than the height of the inlet. The opening at the top of the second chamber is connected to the air inlet of the rear exhaust pipe. Under the drive of the fan, the odor in the basin cavity passes sequentially through the suction pipe, the front exhaust pipe, the vent pipe, the water cup, and the rear exhaust pipe before being discharged into the sewage pipe.

[0012] In a preferred embodiment: the check valve is installed inside the toilet tank, the height of the air outlet of the air duct is not lower than the height of the channel connecting the bottom of the first chamber and the second chamber, and the air outlet of the air duct is set upward.

[0013] In a preferred embodiment: the air outlet of the air duct enters the first chamber through the water inlet, and then extends into the second chamber through the channel connecting the bottom of the first chamber and the second chamber.

[0014] The toilet deodorization method involves the following steps: Odor fumes from the toilet's basin cavity are driven by a fan and discharged into the sewage pipe via an exhaust pipe and a suction pipe. A check valve with a water seal is installed on the exhaust pipe to prevent backflow of odor fumes. Odor fumes in the exhaust pipe before the check valve are first guided through a vent pipe to the bottom of the second chamber of the water cup. After leaving the vent pipe, the odor fumes rise as bubbles to the surface of the liquid in the second chamber of the water cup, and finally return to the exhaust pipe after the check valve. Water in the second chamber is added through the first chamber of the water cup using the toilet's inlet valve.

[0015] In a preferred embodiment: after the inlet valve is opened, the water flowing out first replenishes the water tank, and the water in the water tank is then added to the first chamber; or after the inlet valve is opened, water is replenished to both the water tank and the first chamber at the same time; or after the inlet valve is opened, the water flowing out directly enters the first chamber, and the water overflows from the first chamber before flowing into the water tank.

[0016] Compared with the prior art, this technical solution has the following advantages:

[0017] 1. The odor is directly discharged into the sewage pipe without filtration, and the check valve uses a water seal to prevent the odor from flowing back, thus completely eliminating the odor.

[0018] 2. During the process of opening the inlet valve to replenish the water tank, the water flow output from the inlet valve supplies water to the check valve. Therefore, the water in the cup will not dry up, and even if the toilet is not used for a long time, the odor in the sewage pipe will not flow back due to the failure of the check valve's water seal. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 A schematic diagram of the venting system of a toilet with the tank full of water is shown.

[0021] Figure 2 A schematic diagram of the venting system of a toilet in the water tank draining state is shown.

[0022] Figure 3 An enlarged schematic diagram of the check valve is shown.

[0023] Figure 4 A schematic diagram illustrating the structural deformation of a toilet odor-eliminating system is shown.

[0024] Figure 5 A schematic diagram of another structural variation of the toilet odor-eliminating system is shown.

[0025] Figure 6 A schematic diagram of an odor-eliminating system applied to a cabinet-type toilet with a water tank is shown.

[0026] Figure 7 The illustration shows a schematic diagram of an odor control system used in toilets where the water tank is housed within a ceramic body and drains water using a drain valve.

[0027] Figure 8 The illustration shows a schematic diagram of an odor control system used in toilets where the water tank is housed within a ceramic body and a water pump is used to drain the water.

[0028] Figure 9 The illustration shows a schematic diagram of an odor control system for this type of toilet, where the water tank is connected to the upper rear side of the ceramic body. Detailed Implementation

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 The toilet deodorization system includes an exhaust pipe 10, a fan 20, and an exhaust pipe 30, and also includes a check valve 40 installed in the exhaust pipe. The air inlet of the exhaust pipe 10 is connected to the toilet bowl cavity 50, the fan 20 is connected to the air outlet of the exhaust pipe 10 and the air inlet of the exhaust pipe 30, and the air outlet of the exhaust pipe 30 is connected to the sewage pipe 60. Therefore, the fan 20 can draw in the odor from the bowl cavity 50 and then discharge it. The discharged odor travels along the exhaust pipe 30, first passing through the check valve 40, and then into the sewage pipe 60. Specifically: the exhaust pipe 30 is divided into a front exhaust pipe 32 and a rear exhaust pipe 34, with the check valve 40 as the boundary. The check valve 40 is installed inside the toilet tank 70. The check valve 40 includes a water cup 42 and an air guide pipe 44. The water cup 42 has a first chamber 421 and a second chamber 422 connected at the bottom. The first chamber 421 has a water inlet at the top. The height of the water inlet is lower than the liquid level in the tank 70 when the toilet's water inlet valve 80 is closed (see...). Figure 1 Therefore, water in the water tank 70 can enter the water cup 42 through the water inlet, thus ensuring that the water cup 42 will not run out of water. The air inlet of the air guide pipe 44 is connected to the air outlet of the front exhaust pipe 32. The air outlet of the air guide pipe 44 extends into the second chamber 422. The height of the air outlet of the air guide pipe 44 is lower than the height of the water inlet. In this way, the water in the second chamber 422 will form a water seal effect on the air outlet of the air guide pipe 44, preventing the backflow of the rear exhaust pipe 34 to the front exhaust pipe 32. The opening at the top of the second chamber 422 is connected to the air inlet of the rear exhaust pipe 34. The odor in the basin 50, driven by the fan 20, passes sequentially through the suction pipe 10, the front exhaust pipe 32, the air guide pipe 44, the water cup 42, and the rear exhaust pipe 34 before being discharged into the sewage pipe 60.

[0030] After the toilet's drain valve 90 is opened, water in the tank 70 flows into the basin 50, and then waste in the basin 50 is flushed into the drain pipe 60. The odor-removing system of this invention uses a blower 20 to draw in odor from the basin 50, and after passing through the check valve 40, the odor is also discharged into the drain pipe 60. Because the normal water level in the tank 70 is higher than the inlet of the water cup 42, it ensures that the water cup 42 does not run dry, and the water seal effect of the check valve remains even when the toilet is unused for extended periods.

[0031] Understandably, if the inlet valve 80, when replenishing water to the water tank 70, allows a small portion of the water flow to directly connect to the inlet of the first chamber 421—meaning the inlet valve 80 directly adds water to the water cup 42—it can still ensure that the water cup 42 does not run out of water. In this case, the height of the inlet is independent of the water level in the tank. Furthermore, if the check valve is still located inside the water tank, all the water output by the inlet valve 80 can enter the water cup 42, overflow from the inlet, and then be replenished to the water tank.

[0032] Preferably, the height of the outlet end of the air guide tube 44 is not lower than the height of the channel connecting the bottom of the first chamber 421 and the second chamber 422. In this way, after the gas is output from the outlet end of the air guide tube 44, the bubbles formed can only rise in the second chamber. Even if the size of the second chamber is small, there will be no possibility of gas backflow.

[0033] Preferably, the air outlet of the air duct 44 is positioned upwards.

[0034] Preferably, the air outlet of the air guide tube 44 enters the first chamber 421 through the water inlet, and then extends into the second chamber 422 through the channel connecting the bottoms of the first chamber and the second chamber. Thus, during assembly, the water cup and the air guide tube can be simply fitted together, simplifying the assembly process.

[0035] Preferably, the water cup 42 and the air guide tube 44 are connected together to facilitate the installation of the check valve 40.

[0036] Preferably, the height of the inlet of the check valve 40 is lower than the lowest liquid level in the toilet tank 70 after flushing. That is, after flushing, when the liquid level in the tank 70 drops to its lowest position, the liquid level in the tank 70 is still higher than the height of the check valve inlet. This ensures that even if the drain valve 90 fails to close automatically, the water cup will not run out of water.

[0037] In this embodiment, the fan 20 is installed inside the toilet seat cover, but it can also be installed inside the ceramic body of the toilet (e.g., Figure 4 (as shown), or installed in water tank 70 / connected to check valve 40 (as shown) Figure 5As shown in the figure, if the blower 20 is connected to the air guide pipe 44 of the check valve, then the connection channel between the blower 20 and the air guide pipe 44 can be regarded as the front exhaust pipe 32.

[0038] This utility model's toilet odor deodorization system can be applied to any toilet with a water tank, such as cabinet-type toilets (e.g., Figure 6 As shown), this type of toilet has a water tank inside the ceramic body and uses a drain valve to drain water (such as...). Figure 7 As shown), this type of toilet has a water tank inside the ceramic body and uses a water pump to drain water (such as...). Figure 8 Toilets with the water tank connected to the upper rear side of the ceramic body (as shown in the image) Figure 9 (As shown).

[0039] In summary, the toilet deodorization system of this utility model allows odors from the toilet's basin 50 to be discharged into the drain pipe 60 after passing through the suction pipe 10 and exhaust pipe 30, driven by the fan 20. A check valve 40, employing a water seal to prevent backflow of odors, is installed on the exhaust pipe 30. The odors in the preceding section of the exhaust pipe 32 before the check valve 40 are first guided through the air guide pipe 44 to the bottom of the second chamber 422 of the water cup 42. After leaving the air guide pipe 44, the odors rise into the water cup in the form of bubbles. The liquid level in the second chamber 422 is then returned to the exhaust pipe 34 after the check valve. Under the sealing effect of the liquid in the second chamber 422, the gas will not flow back. The water in the second chamber 422 is added through the first chamber 421 of the water cup. The first chamber 421 is filled with water using the toilet's inlet valve 80 (the water from the inlet valve 80 is directly added to the water cup, or the water from the inlet valve 80 enters the water tank 70 and then flows into the water cup), ensuring that the check valve will not run out of water even if the toilet is not used for a long time.

[0040] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A toilet odor deodorization system, comprising an exhaust pipe, a fan, and an exhaust pipe, wherein the air inlet of the exhaust pipe is connected to the basin cavity of the toilet, and the fan is connected to the air outlet of the exhaust pipe and the air inlet of the exhaust pipe, characterized in that: The exhaust pipe's outlet end is connected to the sewage pipe, and it also includes a check valve installed in the exhaust pipe. The exhaust pipe is divided into a front exhaust pipe and a rear exhaust pipe by the check valve. The check valve is installed inside the toilet tank and includes a water cup and a vent pipe. The water cup has a first chamber and a second chamber connected at their bottoms. The first chamber has a water inlet at its upper part, and the height of the water inlet is lower than the water level in the tank when the toilet's water inlet valve is closed. The air inlet end of the vent pipe is connected to the outlet end of the front exhaust pipe, and the outlet end of the vent pipe extends into the second chamber. The height of the outlet end of the vent pipe is lower than the height of the water inlet. The opening at the top of the second chamber is connected to the air inlet end of the rear exhaust pipe. The odor in the basin cavity, driven by the fan, passes sequentially through the exhaust pipe, the front exhaust pipe, the vent pipe, the water cup, and the rear exhaust pipe before being discharged into the sewage pipe.

2. The toilet odor removal system of claim 1, wherein: The height of the air outlet end of the air duct is not lower than the height of the channel connecting the bottom of the first chamber and the second chamber.

3. The toilet deodorizing system according to claim 1 or 2, characterized in that: The outlet end of the air duct is positioned upwards.

4. The toilet odor-elimination system of claim 3, wherein: The air outlet of the air duct enters the first chamber through the water inlet, and then extends into the second chamber through the channel connecting the bottom of the first chamber and the second chamber.

5. The toilet odor removal system of claim 1, wherein: The water cup and the air delivery tube are connected together.

6. The toilet odor removal system of claim 1, wherein: The height of the water inlet is lower than the lowest liquid level in the toilet tank after flushing.

7. The toilet odor removal system of claim 1, wherein: The fan is installed inside the toilet seat cover, or inside the ceramic body of the toilet, or on the water tank, or connected to the check valve.

8. A toilet odor deodorization system, comprising an exhaust pipe, a fan, and an exhaust pipe, wherein the air inlet of the exhaust pipe is connected to the basin cavity of the toilet, and the fan is connected to the air outlet of the exhaust pipe and the air inlet of the exhaust pipe, characterized in that: The exhaust pipe's outlet end is connected to the sewage pipe, and it also includes a check valve installed in the exhaust pipe. The exhaust pipe is divided into a front exhaust pipe and a rear exhaust pipe by the check valve. The check valve includes a water cup and a vent pipe. The water cup has a first chamber and a second chamber connected at their bottoms. The first chamber has a water inlet at its upper part. When the toilet's water inlet valve is opened to replenish the toilet tank, some water flows into the water cup through the water inlet. The vent pipe's inlet end is connected to the outlet end of the front exhaust pipe, and the outlet end of the vent pipe extends into the second chamber. The height of the outlet end of the vent pipe is lower than the height of the water inlet. The opening at the upper part of the second chamber is connected to the inlet end of the rear exhaust pipe. The odor in the basin cavity, driven by the fan, passes sequentially through the exhaust pipe, the front exhaust pipe, the vent pipe, the water cup, and the rear exhaust pipe before being discharged into the sewage pipe.

9. The toilet odor removal system of claim 8, wherein: The check valve is installed inside the toilet tank. The height of the air outlet of the air duct is not lower than the height of the channel connecting the bottom of the first chamber and the second chamber. The air outlet of the air duct is set upwards.

10. The toilet odor removal system of claim 9, wherein: The air outlet of the air duct enters the first chamber through the water inlet, and then extends into the second chamber through the channel connecting the bottom of the first chamber and the second chamber.

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