CN106930383B - Toilet deodorization system - Google Patents

Abstract

The invention discloses a toilet deodorization system. The toilet deodorization system comprises a water removal device, the water removal device comprises a water removal control device, the water removal control device comprises a sensing device, and the sensing device is used for sensing the depth of accumulated water; the induction device comprises an induction component and a stabilizing ring, the induction component is fixed on the inner side of the stabilizing ring, the induction component is arranged at a position deviating from the geometric center of the stabilizing ring, and the gravity center of the induction device is positioned on one side of the stabilizing ring, where the induction component is arranged; the outer side of the stabilizing ring is arc-shaped. The toilet deodorization system utilizing the water removal device removes accumulated water in the flushing pipeline through the water removal device, so that the flushing pipeline is smoother and the deodorization effect is better on the one hand, and noise caused by the accumulated water is eliminated on the other hand; meanwhile, when the position of the induction device changes in the flushing process, the stabilizing ring swings, so that the gravity center of the induction device and the fulcrum of the stabilizing ring are on the same vertical line, and the induction device is enabled to return to the initial position to normally work.

Description

Toilet deodorization system

Technical Field

The invention relates to the technical field of bathrooms, in particular to a toilet deodorization system.

Background

The toilet space is relatively closed, at present, an exhaust fan is usually arranged at the top of the toilet, the air in the toilet is exhausted to the outside through the exhaust fan, the ventilation system has the good effect of removing moisture in the toilet, but odor generated when people are convenient is at the lower part of the toilet, and the odor is diffused to the whole toilet when the exhaust fan is used.

Chinese patent CN90220207.3 uses the flushing hole of the toilet as the air suction channel to exhaust the odor in the toilet out of the room. However, this structure has a bad deodorizing effect, and if the deodorizing effect is improved by increasing the fan power, the noise is greatly increased, and the user feels uncomfortable.

Disclosure of Invention

Accordingly, there is a need for a water trap and a toilet deodorizing system that reduce noise.

A water removal device comprises a water removal control device, wherein the water removal control device comprises a sensing device, and the sensing device is used for sensing the depth of accumulated water; the induction device comprises an induction component and a stabilizing ring, the induction component is fixed on the inner side of the stabilizing ring, the induction component is arranged at a position deviating from the geometric center of the stabilizing ring, and the gravity center of the induction device is positioned on one side of the stabilizing ring, where the induction component is arranged; the outer side of the stabilizing ring is arc-shaped.

The toilet deodorization system utilizing the water removal device removes accumulated water in the flushing pipeline through the water removal device, so that the flushing pipeline is smoother and the deodorization effect is better on the one hand, and noise caused by the accumulated water is eliminated on the other hand; meanwhile, when the position of the induction device changes in the flushing process, the induction assembly is arranged at the position deviated from the geometric center of the stabilizing ring, the gravity center of the induction device is located on one side of the stabilizing ring where the induction assembly is arranged, the stabilizing ring can swing, the gravity center of the induction device and the fulcrum of the stabilizing ring are located on the same plumb line, and the induction device is guaranteed to return to the initial position to normally work.

In one embodiment, the stabilizing ring is annular.

In one embodiment, the induction device comprises two stabilizing rings arranged at a distance from each other.

In one embodiment, the induction device further includes a counterweight disposed inside the stabilizing ring and on the same side as the induction component.

In one embodiment, the sensing assembly further comprises a water suction port, and the water suction port is arranged close to one side of the stabilizing ring.

In one embodiment, the sensing assembly further comprises a filter element arranged at the water suction port; or the induction assembly comprises a first electrode and a second electrode which are arranged at intervals and close to each other, and the water suction port is positioned between one side of the stabilizing ring close to the water suction port and the first electrode and the second electrode; or the sensing assembly further comprises a water pumping pipe joint, and the water pumping pipe joint is communicated with the water suction port.

A toilet deodorization system comprises a first fan, the water removal device, a toilet and a flushing pipeline, wherein an air inlet of the first fan is communicated with the flushing pipeline, the flushing pipeline is connected between the toilet and the air inlet of the first fan so as to suck odor in the toilet into the first fan and flush water in the flushing pipeline into the toilet, the water removal device further comprises a water removal host connected with the water removal control device, and the water removal host is communicated with the flushing pipeline so as to remove accumulated water in the flushing pipeline.

In the toilet deodorization system, accumulated water in the flushing pipeline is removed through the water removal device, so that the flushing pipeline is smoother and the deodorization effect is better, and noise caused by the accumulated water is eliminated; meanwhile, when the position of the induction device changes in the flushing process, the induction assembly is arranged at the position deviated from the geometric center of the stabilizing ring, the gravity center of the induction device is located on one side, provided with the induction assembly, of the stabilizing ring, the stabilizing ring can swing, the gravity center of the induction device and the fulcrum of the stabilizing ring are located on the same plumb line, and the induction device is enabled to return to the initial position to normally work.

In one embodiment, the induction device is arranged in the flushing pipeline, and the shape of the outer side of the stabilizing ring is matched with the shape of the inner wall of the flushing pipeline; and the stabilizing ring is arranged on one side of the induction assembly and is contacted with the bottom of the flushing pipeline.

In one embodiment, the toilet deodorization system further comprises a water tank, and the main dewatering unit further comprises a water outlet positioned in the water tank.

In one embodiment, the toilet deodorization system further comprises an overflow device, wherein the overflow device is communicated with the water tank; the overflow device comprises an overflow pipe, one end of the overflow pipe is communicated with the water tank, and the other end of the overflow pipe extends out of the water tank.

In one embodiment, the toilet deodorization system further comprises an overflow device, wherein the overflow device is communicated with the water tank; the overflow device comprises an overflow pipe, one end of the overflow pipe is communicated with the water tank, and the other end of the overflow pipe extends into the flushing pipeline.

In one embodiment, the toilet deodorization system further comprises a water inlet mechanism, and the water tank comprises a cut-off water level at which the water inlet mechanism stops water inlet, a water inlet water level at which the water inlet mechanism starts water inlet, and an overflow water level at which the water inlet of the overflow pipe is located, wherein the overflow water level is higher than the water inlet water level and the cut-off water level.

In one embodiment, the water removal device further comprises a water pumping pipe connected to the water removal host, and the cross-sectional size of the overflow pipe is larger than that of the water pumping pipe.

In one embodiment, the toilet deodorization system further comprises a flushing mechanism, the flushing mechanism comprises a water outlet, and one end of the overflow pipe, which extends into the flushing pipeline, is lower than the water outlet of the flushing mechanism.

In one embodiment, the toilet deodorization system further comprises a first heat sensor and a second heat sensor, wherein the first heat sensor is arranged corresponding to the position of going to the toilet, the second heat sensor is arranged away from the position of going to the toilet, when the first heat sensor and the second heat sensor are simultaneously triggered, the toilet is judged to be empty, the first fan is not started for deodorization, and when only the first heat sensor is triggered, the toilet is judged to be occupied, the first fan is started for deodorization; or the dewatering host is a water pump, a second fan or the first fan.

Drawings

FIG. 1 is a schematic view of a flush line of accumulated water;

FIG. 2 is a schematic diagram of noise generated by water accumulated in a flushing pipeline during air draft;

FIG. 3 is a schematic view of a toilet deodorizing system according to an embodiment of the present invention;

FIG. 4 is a schematic view illustrating a water removing device of the deodorization system for toilets shown in FIG. 3;

FIG. 5 is a partial cross-sectional view of the water removal device shown in FIG. 4;

FIG. 6 is a schematic view showing the construction of a toilet deodorization system according to another embodiment;

FIG. 7 is a schematic view showing the construction of a toilet deodorization system according to still another embodiment;

fig. 8 is a schematic view illustrating a structure of a deodorizing system for toilets according to still another embodiment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the applicant finds that a large amount of noise exists in odor in a toilet stool pumped by a fan, and through research, the accumulated water exists in a flushing pipeline, on one hand, the accumulated water occupies part of the flushing pipeline, so that the deodorization effect is not ideal, on the other hand, when the fan is started, the accumulated water vibrates greatly under the action of negative pressure, and particularly, a large amount of noise is generated at the bent part of the flushing pipeline.

Referring to fig. 3, the deodorization system for toilets according to an embodiment of the present invention includes a first fan 30, a water removal device 40, a toilet 44, and a flush pipe 80, wherein an air inlet of the first fan 30 is communicated with the flush pipe 80, and the flush pipe 80 is connected between the toilet 44 and the air inlet of the first fan 30, so as to suck odor in the toilet 44 into the first fan 30 and flush water in the flush pipe 80 into the toilet 44. The water trap 40 includes a water trap main body 404, and the water trap main body 404 is communicated with the flushing pipe 80 to remove the accumulated water in the flushing pipe 80. The water removal host 404 is turned on to pump out the accumulated water in the flush pipe 80. Accumulated water in the flushing pipeline 80 is removed through the water removal device 40, so that the flushing pipeline 80 is smoother and the deodorization effect is better; on the other hand, the noise caused by the accumulated water is eliminated.

Specifically, in one embodiment, the water removal host 404 is a water pump that pumps away standing water. In another embodiment, the water removal host 404 is a second fan that blows accumulated water toward the toilet 44. In yet another embodiment, the water removal host 404 may also be the first fan 30, and the first fan 30 may be an axial fan that draws air for deodorization in forward rotation and blows water for water removal in reverse rotation. In this way, the water removal host 404 may provide suction or blowing force to the accumulated water in the flush pipe 80 to remove the accumulated water.

The water removal device 40 further comprises a water removal control device 406, and the water removal control device 406 comprises a sensing device for sensing the depth of the accumulated water in the flushing pipeline 80 and controlling the start and stop of the water removal host 404 according to the depth of the accumulated water. When the accumulated water is large, the water removing host 404 is opened to remove water.

Referring to fig. 4, the sensing device according to an embodiment of the present invention includes a sensing component 4062 and a stabilizing ring 4064, the sensing component 4062 is fixed on the inner side of the stabilizing ring 4064, the sensing component 4062 is disposed at a position deviated from the geometric center of the stabilizing ring 4064, and the center of gravity of the sensing device is located on the side of the stabilizing ring 4064 where the sensing component 4062 is disposed. The outer side of stabilizing ring 4064 is arcuate so that stabilizing ring 4064 can roll. It is to be understood that the inductive component 4062 and stabilizing ring 4064 can be formed together or can be separately manufactured and attached.

If induction system does not include stable circle 4064, that is at the bath in-process, and induction system's position may change, overturns even, makes water sucking mouth position 0 in induction system's top, causes response subassembly 4062 to switch on all the time, and dewatering host computer 404 opens all the time, has both influenced the life-span of dewatering host computer 404, also can produce the noise, and can't effectively remove water. Through above-mentioned induction system, when the in-process induction system position that flushes changes, because induction component 4062 locates the position of skew stable circle 4064's geometric center, and induction system's focus is located stable circle 4064 and sets up one side of induction component 4062, and stable circle 4064 can take place the swing, makes induction system's focus and stable circle 4064's fulcrum on same heavy plumb line, guarantees that induction system gets back to initial position and normally works.

In one embodiment, stabilizing ring 4064 is annular. It is understood that the stabilizing ring 4064 may also be in the shape of an elliptical ring, a hollow ball, etc., as long as the stabilizing ring 4064 can automatically swing back to the initial position under the action of gravity after being deflected by a change in position under the action of an external force.

In one embodiment, the inductive device includes two stabilizing loops 4064 spaced apart from one another. The induction device is made more stable by the two stabilizing loops 4064.

In one embodiment, the sensing device further includes a weight 4066 disposed inside the stabilizing loop 4064 on the same side as the sensing component 4062. Therefore, the stability of the induction device can be further improved, and the induction device can be ensured to return to the initial position after the position is changed.

In one embodiment, referring to fig. 5, the sensing element 4062 further includes a water inlet 40620, and the water inlet 40620 is connected to the water removal host 404. It is understood that the water removal device 40 may not include the water removal opening 402, and the fan or the water pump directly acts on the accumulated water in the flushing pipe 80.

In one embodiment, the suction port 40620 is positioned proximate a side of the stabilizing ring 4064, and the sensing assembly 4062 further includes a filter element 40621 positioned within the suction port 40620. Through filtering piece 40621, when absorbing water, filterable impurity, the protection removes water host computer 404, and when flushing water, water can be washed away completely filtering piece 40621, makes filtering piece 40621 have self-cleaning function. Specifically, the filter 40621 is a filter screen, but the filter 40621 may be gauze or the like.

In one embodiment, the inductive component 4062 includes first and second electrodes 40622, 40624 in spaced, proximal relation, a suction port 40620 is positioned proximate a side of the stabilizing loop 4064, and the suction port 40620 is positioned between the proximate side of the stabilizing loop 4064 and the first and second electrodes 40622, 40624. When the accumulated water is deep, the first electrode 40622 and the second electrode 40624 are conducted to start water removal, and when the accumulated water is lower than the first electrode 40622 and the second electrode 40624, the water removal is stopped. Specifically, the first electrode 40622 and the second electrode 40624 are graphite electrodes, and the graphite electrodes have good conductivity and chemical stability, are not electrolyzed, and can stably work for a long time. The suction port 40620 is positioned proximate a side of the stabilizing loop 4064, and the suction port 40620 is positioned between the proximate side of the stabilizing loop 4064 and the first and second electrodes 40622, 40624, meaning that the suction port 40620 is below the position of the first and second electrodes 40622, 40624. Thus, when the accumulated water level is lower than the positions of the first electrode 40622 and the second electrode 40624, the water removal host 404 is closed, but a small amount of accumulated water still exists in the flushing pipeline 80, and when the water removal host 404 is a water pump, the water pump cannot be emptied, so that noise caused by emptying of the water pump is avoided, the service life of the water pump is prolonged, and the noise caused by the operation of the first fan 30 cannot be caused due to the small amount of accumulated water.

In one embodiment, the sensing assembly 4062 further comprises a suction connection 40626, and the suction connection 40626 is in communication with the suction port 40620 and is configured to discharge water drawn in through the suction port 40620 through the suction connection 40626.

In one embodiment, the sensing device is disposed in the flushing pipe 80, and the outer shape of the stabilizing ring 4064 matches the inner wall shape of the flushing pipe 80; the stabilizing ring 4064 is positioned such that one side of the sensing component 4062 contacts the bottom of the flush line 80. Specifically, in the present embodiment, the outer side of the stabilizing ring 4064 is annular, and the inside of the flush water pipe 80 is cylindrical. In particular, the flushing conduit 80 comprises a vertical conduit and a transverse conduit, the sensing means being provided in the transverse conduit.

In one embodiment, the water removal device 40 further includes a suction pipe 408, and the suction pipe 408 is connected between the water removal host 404 and the suction pipe interface 40626. Specifically, the water removal host 404 includes a pumping port 4042, and one end of the pumping tube 408 is connected to the pumping port 4042.

In one embodiment, the deodorizing system further includes a water tank 90, and the water removal host 40 further includes a water outlet 4044, wherein the water outlet 4044 is located in the water tank 90, and the accumulated water drawn from the flushing pipe 80 is drained into the water tank 90.

In one embodiment, a first electrode 40622 and a second electrode 40624 are disposed on the circuit where the water scavenging main 404 is disposed, and a first electrode 40622 and a second electrode 40624 are disposed in the water accumulation portion of the flush tube 80. When accumulated water exists in the accumulated water part, the first electrode 40622 and the second electrode 40624 are conducted, the loop provided with the water removal host machine 404 is connected, the water removal host machine 404 is started to remove water, when the accumulated water is pumped to be lower than the positions of the first electrode 40622 and the second electrode 40624, the loop is disconnected, and the water removal host machine 404 is closed.

In one embodiment, the deodorizing system further comprises a flushing mechanism 70, and the water removal control device 406 further controls whether the water removal device 40 is activated according to whether the flushing mechanism 70 is flushed, and controls the water removal device 40 not to be activated when the flushing mechanism 70 is flushed, so as to prevent the water removal device 40 from affecting the flushing effect. Specifically, when the flushing mechanism 70 starts flushing, the water removal device 40 is controlled to stop operating for a predetermined time, for example, 10 seconds. Specifically, the water-removing control device 406 also controls the start and stop of the water-removing host 404 according to the state of whether the flushing mechanism 70 is flushing, and controls the water-removing host 404 to stop when the flushing mechanism 70 is flushing.

In one embodiment, the toilet deodorization system further includes an overflow device, which is communicated with the water tank 90, and when the water level in the water tank 90 is too high, excessive water may overflow from the overflow device, thereby preventing the water from overflowing from the upper side of the water tank 90, and thus ensuring the tidiness of the toilet. This is because when bathing, the in-process of water along the squatting pan downflow can be inhaled the squatting pan to trigger water trap 40 work, water trap 40 can inhale water tank 90, leads to water tank 90 water level to rise, finally spills over from the top of water tank 90, both influences the clean and tidy of bathroom, if go to the lavatory at this moment, the water that spills over still probably spatters on one's body, perhaps cause first fan 30 to intake even, this problem has then been avoided in overflow arrangement.

Referring to fig. 6, an embodiment of the overflow device includes a first overflow pipe 110, one end of the first overflow pipe 110 is connected to the water tank 90, and the other end of the first overflow pipe 110 extends out of the water tank 90. Thus, the excessive water is discharged out of the water tank 90 through the first overflow pipe 110, and the water is prevented from overflowing from above the water tank 90. It should be noted that, after the overflow, a small amount of water is drawn into the water tank 90, and the water level rises to cover the water inlet of the overflow device, so that when the first fan 30 starts the deodorization, no air is introduced from the water inlet, thereby not affecting the deodorization effect.

Specifically, the toilet deodorization system further includes a water inlet mechanism 100, and the water tank 90 includes a cut-off level at which the water inlet mechanism 100 stops water inlet, a water inlet level at which the water inlet mechanism 100 starts water inlet, and an overflow level at which the water inlet of the first overflow pipe 110 is located, the overflow level being higher than the water inlet level and the cut-off level. The overflow water level is higher than the cut-off water level, so that the overflow can not occur under normal conditions; the overflow water level is higher than the water inlet level, so that the water inlet mechanism 100 can not be opened, and water resources are saved.

In one embodiment, the first overflow tube 110 has a cross-sectional dimension that is greater than the cross-sectional dimension of the suction tube 408 to ensure that the water output from the tank 90 is greater than the water input.

Referring to fig. 7, another embodiment of the overflow device includes a second overflow pipe 120, one end of the second overflow pipe 120 is connected to the tank 90, and the other end of the second overflow pipe 120 extends into the flushing pipe 80. In this way, excess water is drained through the second overflow tube 120 into the flush line 120 and into the toilet 44, avoiding water overflow from above the tank 90.

Specifically, the deodorizing system for toilets further includes a water inlet mechanism 100, and the tank 90 includes a cut-off level at which the water inlet mechanism 100 stops feeding water, a feed water level at which the water inlet mechanism 100 starts feeding water, and an overflow level at which the water inlet of the second overflow pipe 120 is located, the overflow level being higher than the feed water level and the cut-off level. The overflow water level is higher than the cut-off water level, so that the overflow can not occur under normal conditions; the overflow water level is higher than the water inlet level, so that the water inlet mechanism 100 can not be opened, and water resources are saved.

In one embodiment, the second overflow tube 120 has a cross-sectional dimension that is greater than the cross-sectional dimension of the suction tube 408 to ensure that the water output from the tank 90 is greater than the water input.

In one embodiment, the flush mechanism 70 includes a water outlet, and the end of the second overflow tube 120 that extends into the flush tube 80 is below the water outlet of the flush mechanism 70 to ensure that water exiting the second overflow tube 120 is not drawn into the first blower 30.

Referring to fig. 8, in another embodiment, the deodorizing system for toilets further includes a first thermal sensor 130 and a second thermal sensor 140, the first thermal sensor 130 is disposed corresponding to a toilet location, the second thermal sensor 140 is disposed away from the toilet location, when the first thermal sensor 130 and the second thermal sensor 140 are simultaneously activated, it is determined that no one is present in the toilet and the first fan 30 is not activated for deodorization, and when only the first thermal sensor 130 is activated, it is determined that one is present in the toilet and the first fan 30 is activated for deodorization. Specifically, the first heat sensor 130 is installed at the front of the water tank 90, and the second heat sensor 140 is installed at the side of the water tank 90. Specifically, first heat sensor 130 and second heat sensor 140 are both infrared sensors. Thus, when a person takes a bath, although no person goes to the toilet, the hot air of the water can simultaneously trigger the first thermal sensor 130 and the second thermal sensor 140, and no person goes to the toilet, so that the first fan 30 does not need to be started for deodorization, the water is prevented from being sucked into the squatting pan in the process of flowing downwards along the squatting pan in the bath process, and the water cannot enter the squatting pan without the suction force of the first fan 30; when a person goes to the toilet, only the first thermal sensor 130 senses that the person is activated, and the second thermal sensor 140 is not activated, it is necessary to activate the first fan 30 for deodorization.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (14)

1. A toilet deodorization system is characterized by comprising a first fan, a water removal device, a toilet and a flushing pipeline, wherein an air inlet of the first fan is communicated with the flushing pipeline, the flushing pipeline is connected between the toilet and the air inlet of the first fan so as to suck odor in the toilet into the first fan and flush water in the flushing pipeline into the toilet, the water removal device comprises a water removal control device and a water removal host connected with the water removal control device, and the water removal host is communicated with the flushing pipeline so as to remove accumulated water in the flushing pipeline;

the water removal control device comprises a sensing device, and the sensing device is used for sensing the depth of accumulated water; the induction device comprises an induction component and a stabilizing ring, the induction component is fixed on the inner side of the stabilizing ring, the induction component is arranged at a position deviating from the geometric center of the stabilizing ring, and the gravity center of the induction device is positioned on one side of the stabilizing ring, where the induction component is arranged; the outer side of the stabilizing ring is arc-shaped to allow the stabilizing ring to roll.

2. The lavatory odor control system of claim 1, wherein the stabilizing ring is annular.

3. A toilet deodorising system as claimed in claim 1, wherein the sensing means comprises two of the stabilising rings, spaced apart from one another.

4. The lavatory odor control system of claim 1, wherein the induction device further comprises a counterweight disposed inside the stabilizing collar on the same side as the induction assembly.

5. The lavatory odor control system of claim 1, wherein the sensing assembly further comprises a suction port positioned proximate a side of the stabilizing collar.

6. The lavatory odor removal system of claim 5, wherein the sensor assembly further comprises a filter element disposed at the suction port; or the induction assembly comprises a first electrode and a second electrode which are arranged at intervals and close to each other, and the water suction port is positioned between one side of the stabilizing ring close to the water suction port and the first electrode and the second electrode; or the induction assembly further comprises a water pumping pipe joint, and the water pumping pipe joint is communicated with the water suction port.

7. The lavatory odor control system of claim 1, wherein the induction unit is disposed within the flush line and the outer shape of the stabilizing ring matches the shape of the inner wall of the flush line; and the stabilizing ring is arranged on one side of the induction assembly and is contacted with the bottom of the flushing pipeline.

8. A lavatory deodorising system as claimed in claim 1, further comprising a water tank, the de-watering main unit further comprising a water outlet, the water outlet being located in the water tank.

9. A toilet deodorising system as claimed in claim 8, further comprising an overflow means, the overflow means being in communication with the cistern; the overflow device comprises an overflow pipe, one end of the overflow pipe is communicated with the water tank, and the other end of the overflow pipe extends out of the water tank.

10. A toilet deodorising system as claimed in claim 8, further comprising an overflow means, the overflow means being in communication with the cistern; the overflow device comprises an overflow pipe, one end of the overflow pipe is communicated with the water tank, and the other end of the overflow pipe extends into the flushing pipeline.

11. A lavatory deodorising system as claimed in claim 9 or 10, further comprising a water inlet mechanism, the cistern comprising a cut-off level at which the water inlet mechanism stops feeding water, a feed water level at which the water inlet mechanism starts feeding water and an overflow level at which the inlet of the overflow pipe is located, the overflow level being higher than the feed water level and the cut-off level.

12. A lavatory deodorising system as claimed in claim 9 or claim 10, wherein the de-watering device further comprises a suction pipe connected to the de-watering main, the overflow pipe having a cross-sectional dimension greater than the cross-sectional dimension of the suction pipe.

13. A lavatory odor removal system as claimed in claim 10, further comprising a flush mechanism including a water outlet, the end of the overflow tube extending into the flush channel being lower than the water outlet of the flush mechanism.

14. The system of claim 1, further comprising a first thermal sensor and a second thermal sensor, wherein the first thermal sensor is disposed corresponding to a toilet location, the second thermal sensor is disposed away from the toilet location, and when both the first thermal sensor and the second thermal sensor are activated, the first fan is determined to be unattended and the first fan is not activated for deodorization, and when only the first thermal sensor is activated, the first fan is determined to be attended and the first fan is activated for deodorization; or the dewatering host is a water pump, a second fan or the first fan.

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