TW201723279A - Toilet bowl venting system - Google Patents

Abstract

A damp-proof venting device comprising a proximity sensor switch, fan blower, two solenoid valves and a control unit, powered by an external power supply, vents toilet bowl malodour directly into the toilet's sewerage drain, bypassing the toilet's primary water trap via an independent pressure-driven air passage sealed by a secondary independent water trap. Said control unit regulates the operation of venting unit's air blower and two solenoid valves, thus ensuring directionality of displaced air during the venting stage as well as sealing the venting passage after use under all possible circumstances, all in synchronicity with the toilet's engagement by user. A slight variation of said device allows for retrofitting onto geometry and space-accommodating market-available toilet models.

Description

Toilet bowl exhaust system

FIELD OF THE INVENTION This invention relates to toilet bowl venting apparatus.

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a comfortable, hygienic, efficient, practical, and reliable weighting of a toilet bowl potty odor directly from a toilet bowl to a geometrically compatible venting device that is incorporated into a toilet bowl or retrofitted onto a conventional toilet bowl. Oriented into the sewage drain of the toilet. This type of device is economical to mass-produce, install, and operate, providing a reliable solution to the aging problem of toilet odors.

Many attempts have been made to provide a solution to the foul smell of the toilet. These attempts can be grouped into three categories of exhaust outlet points: 1) jetting the toilet space volume air out of the toilet space via an exhaust fan; 2) air filtering the toilet bowl before the toilet bowl air is expelled into or outside the toilet space or Deodorization; and, 3) discharge the toilet bowl air directly out of the toilet space.

First, it is at least convenient and at least efficient to eject the toilet space volume air. This is due to the need to evacuate all of the air volume of the toilet space (due to the spread of malodor) rather than simply drawing out a limited volume of malodorous air in the toilet bowl. Moreover, additional construction work is required, resulting in the formation of holes and, in some cases, protruding channels within the windows and masonry structures.

Second, the malodor treatment requires replacement of a consumable filter cartridge or deodorizing cartridge, which results in ongoing costs and unnecessary waste. Moreover, the effects of these consumables diminish over time, resulting in incomplete odor handling near the end of the life of these consumables, which are not guaranteed to be generally available throughout the life of the toilet. At the same time, deodorants can cause discomfort to many people, irritate the respiratory tract and trigger allergic reactions.

Third, the direct toilet potty odor ejection is performed via the toilet sewage drain, via a specially installed dedicated line instead of the toilet direct sewage drain or via the external air duct network. Leaving through the toilet drain can be the most desirable method as it does not involve the installation of a dedicated exhaust pipe and all associated costs and abrupt sensations. Of course, in the foregoing description, all aspects relating to the overall shielding of the exhaust system (and the user) from the sewage system are properly addressed in all situations. Various attempts have been made to solve this sealing problem, but most, if not all, fail to provide a fully viable ergonomic and economical solution, which explains the apparent failure of these systems in the market.

In addition to the method of discharging the odor gas outlet point, there is also a method of absorbing malodorous gas from the toilet bowl. The method includes inhaling via a toilet seat, via a toilet flush aperture, or via a single or multiple air inlets within the toilet bowl. Many of these methods directly expose toilet waste, with locations that facilitate bacterial and viral propagation, such as edges, channels, openings, and baffles. These locations are also difficult to clean.

The inevitable result of the lines and tubes used to transport the malodorous air from the race is the operational wear and tear of the one or more race articulated line points, and the system's dependence on the integrity of the race itself, which is replaced In the case of this, it is unnecessary, expensive and tricky.

In the case of extracting air through a pre-existing flushing orifice of the toilet, the method requires a complex exhaust system that traverses the toilet flushing system, which may draw water to the exhausting device if the bowl overflows. It will also be an additional burden to be handled during any form of toilet maintenance. This method also causes the exhaust in the flushing phase to be interrupted, which may cause the entire exhaust operation to be useless.

Other forms of air intake methods, such as those associated with the toilet bowl area, are beneficial for bacterial proliferation and difficult to clean.

Many exhaust systems are located in the flush tank or in the chamber below the toilet bowl. The location of the exhaust unit and the accessibility of its associated components affect the utility of the unit and the convenience associated with any maintenance work.

In the case of a toilet bowl overflow, all of the aforementioned direct potty venting methods have the risk of allowing wastewater to enter the exhaust system. This can damage the electromechanical and electrical parts of the system. If the system is not available, extensive cleaning and maintenance work will be required to remove all traces of excreta particles that will become a source of continuous malodor and a safe haven for bacteria, viruses and other causes. Therefore, the malodor extraction point should be above the toilet bowl overflow level to protect the exhaust system components from the water carrying the excrement.

Moreover, a reliable control system is critical to a reliable exhaust system. The automatic control exhaust system relies on the sensor to signal the presence and absence of the user. Various sensing methods have been proposed, such as pressure switches on or under the toilet seat, but these switches rely on mechanical triggers that increase the chance of wear and failure. A motion sensor is proposed, but this forms a signal when the field of view changes and thus does not properly measure the presence or absence of a seated person. In the case of inexpensive, reliable and ubiquitous proximity sensors such as infrared or ultrasonic proximity sensors, the actual control steps are rarely addressed to prevent irrelevant triggers such as toilet seat or cover lift/lower or at the toilet seat The problem of undesired activation and/or deactivation of the ventilation system caused by brief movements near the circle.

In all cases with an exhaust unit integrated into a public toilet, the exhaust unit and its support members need to be protected against tampering and theft. current technology

WIPO patent WO 2015087100 A1 describes an infrared sensor activated system that evacuates a toilet bowl via an air suction nozzle that adapts to the shape of the toilet rim. Primarily, such systems fail to address the problem of toilet malodor removal, the selection of inappropriately costly and impractical filtration methods. Although the invention avoids the overflow level of the toilet bowl by using a nozzle adapted to the shape of the top surface of the toilet rim, the nozzle itself does not have a fixed fastening method, making it fragile and impractical. Although the invention proposes the use of such a system in a public toilet, it fails to solve the problem of tampering and theft of such systems and their components.

U.S. Patent No. 2015/0074886 A1 describes the evacuation of toilet gas via an inlet nozzle positioned behind the toilet seat and leading to a sensor unit activated by the sensor in the toilet bowl, where the toilet gas is filtered and further directed to A downpipe that communicates with the invention and the toilet itself. Despite the one-way gate and insect gauze, the invention fails to meet the public health and building regulations regarding the proper size of the water trap between the sewage and the interior of the home, US Patent US 2015/0107009 A1 and US 2015/ 0211222 A1 also failed to provide a proper sealing method. Moreover, it is not appropriate to place the electromechanical components of the invention in the body below the flush tank and below the bowl overflow level, as already mentioned above. The invention also fails to address the problem of specific geometric constraints imposed by various toilet models.

The aforementioned US Patent No. US 2015/0074886 A1 relates to a sensor for controlling the invention but does not describe how such a sensor operates.

US Patent No. 2015/0211222 A1 describes a toilet odor eliminating system that inhales potty gas via a connection point inserted in a flushing pipe between a flush tank and a toilet bowl. Again, such systems are in communication with the toilet drain without proper sealing. The patent mentions the presence of a pressure switch under the toilet seat or the presence of an infrared sensor, but fails to describe its detailed operational steps or how to cope with undesired start signal results.

WIPO patent WO2013/010293 collects toilet gas directly through its flushing orifice. Similarly, Chinese patent CN 104302850A draws toilet bowl gas through a complicated system, making manufacturing and installation difficult and increasing production costs.

In addition to the inconvenient and inefficient filtration and deodorization methods, Chinese Patent No. CN104379847 describes a system in which the outlet of the exhaust pipe is located outside the toilet space and requires an opening in the toilet space wall or window, which is usually invasive. And often prohibited in rented and multi-storey homes.

In addition to pursuing inconvenient and inefficient filtering and deodorizing methods, Chinese Patent No. CN104379847 describes a system in which the exhaust pipe outlet is located outside the toilet space and requires an opening in the toilet space wall or window, which leads to the above. The problem mentioned.

European Patent EP 2 239 380 A2 describes an air ventilating fan which sucks malodorous air from a toilet bowl through a toilet flushing hole and a duct and then passes through an outlet in the toilet bowl to pass through one of the toilet wall and/or the ceiling space. Or multiple air ducts are ejected. The limitations of this approach have been described above.

U.S. Patent No. 8,789,213 B2 provides a secondary water trapper through a baffle check valve without providing a sealed backup which may prove insufficient in the event of a long term electrical fault causing the water seal in the secondary water trap to dry. of. Moreover, the use of specially manufactured toilet hoppers to modify the system to a non-prepared toilet limits its commercial viability.

The invention mentioned above fails to provide an actual control system operation step to avoid venting unit unplanning operations such as opening/closing the toilet seat cover, which is not adequately and practically solved by removing the race cover, which will This results in an inefficient and unreliable operation of the ventilation unit.

In summary, the ideal toilet bowl exhaust system combines all of the aforementioned benefits into a compact, affordable unit that removes malodorous gases directly from the source of the malodorous gas (the toilet bowl) from above the toilet bowl overflow line. And provide the highest level of reliability, comfort and energy savings for the purpose. Moreover, the ideal system directs the removed malodorous gas into the sewer direct drain connection of the toilet, is reliably sealed from the sewage by a suitable water trap and is backed up by a normally closed tap water solenoid valve for water replenishment All are available in low-cost markets that are housed in non-obtrusive moisture-proof containers. The system should be guided by a reality-based system, operating under sealed failure conditions, in the case of a public toilet, against tampering and theft, easy to manufacture and install, and retrofitted to pre-existing toilet facilities.

SUMMARY OF THE INVENTION The present invention describes an electronically controlled toilet bowl direct venting device that is attached to a horizontal space between the rear side of the toilet seat and the toilet flush tank, as geometry and space permits. At the time of installation, the rear of the device faces the toilet flush tank with its front facing the toilet seat.

Accommodated within a solid moisture barrier container, the device directly draws in the toilet bowl gas via an intake port that protrudes from the lower front portion of the device and is disposed at a height above the toilet bowl spout below the toilet bowl overflow line. The inhaled gas, driven by an electric fan within the device container, bypasses the toilet main water trap and communicates with the toilet sewage drain via a relatively small secondary water trap and is thus safely ejected from the toilet space.

The venting unit container has three openings of different sizes when closed: the smallest for the power line, the other for the tap water supply pipe and the third (and largest) for the venting tube. The water and exhaust pipes are positioned at opposite outer ends of the container, and a defined distance is applied to the available space within the container, the shape and size of which are determined by the ergonomic and aesthetic design parameters associated with the toilet bowl. All openings are sealed around their respective conduits to prevent water from entering the container.

A low voltage electromechanical component is also housed within the container: an electric exhaust fan blower and two normally closed solenoid valves. One of the solenoid valves is deployed to the potty exhaust pipe and the other is deployed to the water supply pipe.

Externally, the proximity sensor switch tip protrudes from the front of the container.

All of the above mentioned components are connected via appropriate wiring to a control unit that is also housed within the container.

The toilet venting unit of the present invention is incorporated into a prepared toilet commode or retrofitted to an existing standard toilet commode, where geometry and space permits.

In the case of the prepared toilet bowl, the exhaust unit casing has the tap water inlet pipe and the exhaust gas outlet pipe mentioned above on the bottom surface of the casing.

The urinal prepared as mentioned above is a standard toilet commode, but has a secondary water trap and two verticals on either side of the sump flushing supply pipe on the horizontal surface between the rear of the toilet seat and the flush tank. Straight through holes, the two vertical through holes matching the dedicated tube position of the exhaust unit at the bottom of the toilet bowl.

In the case of a ceramic based toilet, the through hole and secondary water trap can be created by slightly changing the mold during the toilet bowl manufacturing phase. Moreover, many existing toilet commodes allow the aforementioned through holes to be drilled in the toilet commode without adversely affecting the performance or integrity of the commode, thus making the commode suitable for the exhaust unit's tap water and exhaust pipe standards. Even the method. The secondary water trap can be attached to the toilet commode.

The through hole and the secondary water trap must not interfere with the function of the toilet or penetrate or expose any cavity in the toilet. Such interference or penetration or exposure will adversely affect the function and sanitary condition of the toilet and the safety of the user. Sex.

In the case of a prepared commode, if the owner chooses not to install the venting feature, the through hole can be sealed by a specially provided tight fit plug of suitable matching color and material.

The auxiliary pipe communicates with the exhaust gas exhaust pipe and the secondary water collector of a proper sealing height through the aforementioned through hole (at the lower side of the outlet point through the through hole), which prevents sewage gas, bacteria and The insects move upstream from the sewage into the toilet exhaust and thus into the toilet space. The water seal height in the secondary water trap is determined by local related residential buildings and sanitary regulations.

In turn, the secondary water trap is in communication with the sewage drain at a point downstream of the toilet main water trap. The communication between the exhaust venting pipe and the toilet sewage drain allows the inhaled toilet bowl air to safely bypass the main water trap of the toilet and is pumped out into the sewage system, eliminating malodorous diffusion and pollution in the toilet space. .

According to related construction and hygiene regulations, the secondary water trap can be any of a variety of possible water-receiving methods, such as U-shaped, S-shaped, J-shaped, P-shaped tubes or bottle types, or any suitable form. The pipe trap. In the case of a specially manufactured toilet commode, the secondary water trap is produced as part of a toilet.

The venting device is connected to the tap water supply via a line to supplement the secondary water trap seal (possibly via a three-way joint shared with the toilet flush tank water supply valve), the line passing through the lower portion of the second vertical through hole of the commode It is connected to the inlet water pipe of the device. The inlet water conduit is connected to the aforementioned normally closed water solenoid valve disposed in the exhaust device and along the air take-off point to a point downstream of the air fan.

The lower front portion of the device is secured to the toilet via two slots on the side of the inlet air port of the device adjacent the toilet commode attachment bolt. The slot receives the toilet seat bolt and will thus become secured between the toilet bowl surface and the toilet seat hinge.

The installation position of the venting unit to the non-prepared toilet commode is similar to the commode method prepared as described above except for the following points: the tap water inlet pipe and the exhaust gas outlet pipe of the exhaust device are on the side from the opposite side of the device housing Extending, rather than extending from below the housing. Since there is no through hole, as in the case of the commode prepared as described above, the inlet and the outlet pipe will pass through a pipe connecting the trunk of the toilet bowl between the toilet bowl and the flush tank with its corresponding connecting member (in the case of the former, the water pipe) And in the latter case the next time the water trap is connected) to reach the lower end of the horizontal surface between the toilet bowl and the flush tank, ie to reach the same line position below the attachment surface of the toilet bowl unit, as on The case of the prepared toilet commode is described in detail.

In the case of a prepared toilet bowl, in addition to the two through holes, the secondary water trap is manufactured as part of the toilet bowl, in the most compact and concealed manner possible, in order to prevent any accidental damage due to handling and More beautiful. This also applies to "smart"/"smart" toilets in which the entire venting device and the secondary water trap are hidden within the toilet housing.

In the case of a retrofitted venting device, a suitably sized third aperture is deployed downstream of the main water trap of the toilet for attachment and thus communication of the odor discharged from the toilet exiting the modified secondary water trap with the downstream toilet sewage drain pipe .

The secondary water trap aperture downstream of the toilet main water trap is carefully drilled using a drilling method suitable for the toilet bowl construction material to ensure the integrity of the toilet bowl and to ensure proper sealing of the joint via a suitably internally sealed joint.

For the modified venting device, the housing tube bore is positioned in the outer side of the housing instead of the bottom of the housing to allow opening and closing of the unit without excessive passage due to the tube passing through the unit housing Obstruction.

The tube extending from the outside of the device unit is the end of the threaded tube, the end of the threaded tube projecting just enough to connect with the flexible tube attachment on the outside of the container, which communicates each tube with its associated component: a secondary water trap ( In the case of the exhaust outlet) and tap water (in the case of the tap water inlet).

In order to prevent tampering with the venting container and its contents, the container is closed by screw fastening, the screw penetrating from the bottom surface of the bottom of the housing and being connected to the covering via an adjacent screw socket. Once the unit is mounted to the toilet bowl and its piping is secured, the components of the unit can only be accessed by disassembling the corresponding piping. This applies to both prepared and non-prepared toilet configurations.

The exhaust unit houses a suitably sized fan, normally closed air solenoid valve, normally closed water valve, proximity sensor switch and control unit, all connected to suitable conduits and wiring to allow the unit to operate in accordance with the purposes of the present invention.

The malodorous air is drawn from the toilet bowl through the air inlet port of the device by the electric fan, and is discharged through the container base through the normally closed air solenoid valve (which is simultaneously switched on and off as the air fan is activated) (however, in the case of preparing the toilet configuration) Next, it will pass through the exhaust outlet tube of the side of the container, wherein the exhaust take-off tube is in communication with a similarly sized secondary water trap.

The tap water connected to the device container passes through the appropriate tube connection from the opening below the container (however, in the case of a toilet, it will pass from the side of the container) and flows along the line through the water solenoid valve (it opens continuously enough) The preset time interval) and into the relatively large exhaust gas outlet pipe via a connection downstream of the exhaust solenoid valve to replenish the seal of the secondary water trap downstream of the air take-off pipe at the end of the exhaust operation. Any excess water will safely flow downstream into the sewage drain. The tap water pipe has a small diameter because a small amount of water is required to complete the water seal.

Two normally closed solenoid valves ensure that the device is in a safe mode: in the case of a water valve, the closed valve will prevent tap water from inadvertently flowing through the device during exhaust operation, while the secondary water trap seal is damaged. Next, the closed air valve will act as a backup seal for the secondary water trap isolation sewage, such as due to prolonged power loss, complete failure of the device, or the device is not used for a long time causing its water seal to dry.

Low voltage power sufficient to power the exhaust unit electromechanical components is supplied to the exhaust unit via an external power source, which is connected to the mains in a suitable manner to ensure safety in accordance with relevant building and sanitary regulations. The On/OFF switch can be part of the power supply. In the case where no commercial power source is available in the toilet space, the battery can be used (but this is disadvantageous from the viewpoint of environmental protection). The battery can be placed in a separate container of suitable size, hidden in the available space behind or below the torso of the toilet. The battery can also be housed in the venting unit moisture barrier container, where space permits. In this case, the power cord conduit in the device container can be excluded.

The proximity sensor switch protrudes from the front of the exhaust unit toward the front of the toilet seat. Its position is such that its field of view is not limited by the raised or lowered position of the toilet seat cover and the toilet seat, allowing the field of view to record the presence of the seated toilet user.

Where the toilet seat and/or cover obscures the view of the proximity sensor, the sensor can be placed in any suitable position with the field of view facing the seated toilet user.

Infrared proximity switch sensors are best suited for this job because they are commercially available, reliable and relatively inexpensive. Ultrasonic proximity switch sensors are also suitable, but are generally more expensive.

A control unit housed within the exhaust housing supervises the exhaust cycle. The exhaust cycle includes: 1) the control unit confirms the presence of the seated toilet user based on the confirmation signal(s) from the proximity sensor switch; 2) opens as the fan unit is temporarily operated under high pressure a normally closed air solenoid valve to evacuate the secondary water trap seal into the effluent and thus to communicate with the venting and effluent drain of the device; 3) when the fan unit is operated at low pressure, the air solenoid valve remains open for the toilet bowl The malodorous air is continuously ventilated; 4) the control box confirms the signal of the user approaching the sensor switch leaving the toilet seat; 5) the timer starts, keeping the ventilation for a set period of time; 6) the air solenoid valve is closed and the fan unit is disconnected 7) The water solenoid valve is temporarily opened to allow tap water to flow in and through the exhaust gas outlet pipe to replenish the sprayed secondary water trap seal for a predetermined period of time to ensure complete sealing; 8) the water solenoid valve closes to end the exhaust cycle .

The exhaust fan blower is programmed to operate at two speeds. When the secondary water trap seal is ejected at a relatively higher pressure, the head will be reduced to a value sufficient to allow the toilet potty odorous air to move freely into the effluent, but still produce noise below the building and sanitary standards. Within a suitable air flow rate, and for a toilet user seated on a toilet bowl, comfortable and sufficient to allow efficient toilet bowl venting but not too large to simultaneously use a plurality of toilet commodes connected to the same sewer The vent hole creates the optimum pressure for excessive load.

Variable speed centrifugal fans are generally more suitable for this task because they provide a larger head than axial fans and therefore occupy relatively less space within the exhaust unit to ensure a compact design of the unit. Centrifugal fans are also better suited to provide multiple airflow pressure combinations and to handle several airflow conditions, including clean, dry, and humid air.

The control system can be "read only" or programmable. In the case of programmable logic circuits (PLCs) that are more expensive to produce, the user can modify the timer duration of the control system to suit specific needs and requirements, such as installation in a home with high pressure tap water, which would require opening tap water The solenoid valve lasts for a short period of time to seal the secondary water trap.

Increasing and/or lowering the toilet seat cover and/or the toilet seat may provide an error signal to the control unit depending on the type of proximity sensor. In this case, the control unit compares two or more proximity sensor readings separated at short time intervals to distinguish between periods of temporary occlusion of the sensor field of view when the toilet seat/cover is raised/lowered The time when the user is sitting on the toilet. To be more accurate, another timing proximity sensor scan can be programmed into the control unit, reducing the chance of undesirably starting the exhaust system exhaust cycle.

The invention can also be integrated into a "smart" toilet seat or "smart" toilet system where the system will provide a signal to the user. In this case, the exhaust system of the present invention can remove the proximity sensor switch. Moreover, in this case, the venting unit can be integrated into a "smart" toilet seat/"smart" toilet housing for ergonomic and aesthetic purposes.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawings, wherein like reference numerals refer to like parts, and in particular to FIG. 1a, FIG. 1a is a schematic perspective view for making a toilet commode, and is a reference design unless otherwise specified.

The toilet venting unit of Figure 1a is attached to a toilet bowl 301 made of ceramic, coated porcelain, plastic, metal or any suitable solid material, the toilet bowl 301 comprising a water trap (siphon) 313, a potty 30 and a flush tank 309 (shown in Figure 4a). The toilet is a prepared toilet or a conventional toilet having sufficient space and geometry to accommodate the retrofit unit of Figure 1b, the prepared toilet being in communication with a water supply pipe 318 and a toilet sewage conduit 315 downstream of the exhaust unit.

The venting unit (Fig. 1a) is housed in a suitably sized solid moisture barrier container 101 for fitting to a horizontal space 305 between the toilet seat 311 and the flush tank 309, the horizontal space 305 having sufficient dimensions to allow the venting unit An intake port 110 is fitted below the toilet seat 311 and protrudes directly above the rim 303 of the toilet bowl 302 to allow the toilet bowl to enter but to prevent water from entering if the toilet bowl overflows (Fig. 4a) .

The container 101 of the unit is designed to ensure proper closure of the cover 102 and the bottom member 103, such as a fixed male-female peripheral lip 122, which also prevents water/moisture from entering the container.

The exhaust unit container 101 has three different sized openings when closed: a minimum 105 for accommodating the power line 123; another for the tap water supply tube 107 and a third (and largest) for venting The tube 108 is taken out. The water and exhaust pipes are positioned at opposite outer ends of the container, and a defined distance is applied to the available space within the container, the shape and size of which are determined by the ergonomic and aesthetic design parameters associated with the toilet bowl 301. All openings are sealed around their respective conduits to prevent water from entering the container.

The cover 102 of the container is fastened to the bottom piece 103 via screws, the screws passing vertically through the base 103 of the bottom into the adjacent equally spaced screw sockets around the periphery of the casing in the top cover 102 Inside.

The front region of the device is secured to the toilet 301 via two slots 104 at the side of the device inlet air port, the two slots being positioned adjacent the toilet commode attachment bolt holes 306. The slot 104 receives the toilet seat bolt and will thus become secured between the toilet bowl surface 305 and the toilet seat hinge anchor 320.

The exhaust unit (Fig. Ia) is powered by an external power source 125 that is inserted into the available outlet 126, which provides suitable electrical and electromechanical components within the exhaust unit via lines 124 extending from the unit housing power conduit 105. The regulated power supply, line 124 is an extension of line 123 that is connected to control unit 113 of the unit. For safety reasons, generally available 12 VDC or 24 VDC electrical and electromechanical components are suitable.

In the case of battery operation, the venting unit can accommodate a battery pack of a suitable size or such battery pack can be hidden in place on the commode.

The exhaust unit has a tap water inlet pipe 107 that is connected to the toilet tap pipe 316, ideally via a "three-way" fitting 319, and a "three-way" fitting 319 that connects the toilet flush tank 309 (via line 317) and The water inlet pipe 107 (via line 318) is described to the tap water 316. The tap water will supplement the secondary water trap 312 seal during operation of the exhaust unit.

The exhaust unit (Fig. 1a) includes an exhaust outlet pipe 108, which is a conduit for malodorous air drawn from the toilet bowl, and directs the air to the toilet sewage pipe via the secondary water collector 321 315. Within the vessel 101, the exhaust gas outlet tube 108 contains a smaller tap water pipe 115 (downstream of the water solenoid valve 114) as depicted by the section of the AA exhaust pipe of Fig. 2c, thus obtaining an exhaust pipe for feeding tap water 120.

At the end of the exhaust operation, the exhaust pipe 120 connected to the tap water of the exhaust pipe 118 at a point lower than the outlet of the fan blower 112 is supplied to the secondary water collector 321 by gravity. water.

In Fig. 2a, the exhaust unit houses an appropriately sized air fan blower 112, normally closed air solenoid valve 117, normally closed water valve 114, proximity sensor switch 105 and control unit 113, all with suitable piping and wiring. Connections are made to allow the unit to operate in accordance with the purposes of the present invention. Therefore, the air fan blower 112 is connected to the control unit 113 via the line 113a, the normally closed air solenoid valve 117 is connected to the control unit 113 via the line 113b, and the normally closed water valve 114 is connected to the control unit 113 via the line 113c and approaches the sensor switch 105. It is connected to the control unit 113 via a line 113d.

The aforementioned components are assembled such that gas drawn from the toilet bowl via the exhaust unit intake port 110 enters the exhaust unit and passes through a suitably sized air fan blower unit 112 via a sufficiently sized reducer 111. The air fan blower 112 will desirably be a variable speed fan that provides two indenters, one for the initial stage of exhausting the secondary water trap 321 water seal to provide an exhaust unit to extract air and sewer lines The direct connection of 315 and the other is for the exhaust of the odorous air of the toilet bowl, as shown in Figure 6b.

The proximity sensor switch 105 is disposed on the front of the exhaust unit, on the upper or lower portion (cover or bottom), depending on the ergonomic design of the housing (see here on the cover 102) such that The toilet user activates when sitting on the toilet seat, but does not activate when the toilet seat and/or cover is raised. This is achieved by positioning the active face of the proximity sensor 109 at a height above the toilet seat 311 and the race cover 312 when the toilet seat 311 and the seat cover 312 are in a lowered position, but are raised The toilet seat cover 312 has a clear, unobstructed view of the field of view 124. Accordingly, the toilet seat 311 and the cover 312 should have suitable geometries to allow the field of view 124 of the proximity sensor to be unobstructed when in the raised or lowered position (see Figure 4b).

Where the field of view of the proximity sensor 109 is obscured, the proximity sensor switch can be placed in a position such that the field of view is toward the toilet user.

Sensing can also be performed by a toilet seat skin sensing sensor that is present on commercially available "smart" or "smart" toilets. If used, it will not require proximity sensor switch 105 (and associated housing 101 aperture) to send a signal directly to control box 113 indicating the presence of the user, and control box 113 will perform all of the entire ventilation cycle of the present invention. Control operation.

To ensure that the proximity sensor switch is not triggered by simply raising the toilet seat cover 312, the control unit 113 is programmed to record at least two actives from the proximity sensor range separated by a suitable duration. The signals are divided accordingly.

The malodorous gas leaves the fan unit 112 and travels through the normally closed air solenoid valve 117. The air fan blower unit 112 and the normally closed air solenoid valve 117 cooperate to cause the air solenoid valve to open when the fan is operating and the air solenoid valve to close when the fan is open.

As the malodorous air exits the normally closed air solenoid valve 117, the air flows through the exhaust outlet pipe 118, passes through the tap water feed pipe 120 and exits the exhaust unit via the 108 toward the secondary water trap 321 . The secondary water trap 321 (having a suitable geometry, such as a U-shaped, S-shaped, J-shaped, P-shaped tube, bottle type, etc., which meets hygienic criteria for determining the height of a particular minimum water seal), separating the rows Gas unit and building sewage.

The water seal content of the secondary water trap 321 is discharged by the air fan blower 112 along the sewer with a sufficient pressure head during the initial operation of the air fan, and the water content of the water trap is discharged downstream to the sewage conduit 315. Inside. When the secondary water trap 321 water seal is evacuated, the fan unit 112 is reduced in pressure to a sufficient value based on the signal from the control box 113 to allow the toilet bowl to odorous air to flow freely into the sewage but within a suitable air flow rate. The resulting noise is lower than the building and sanitation standards, and is comfortable for the toilet user sitting on the toilet bowl 301, and the minimum rate of discharge is sufficient to allow efficient evacuation of the toilet bowl 302.

Once the toilet user leaves the toilet seat 311, such as when the proximity switch sensor 105 of the exhaust unit signals, the pre-programmed timer within the control unit 113 determines that the fan unit 112 is open with the air solenoid valve 117. Restore the duration of its exhaust operation. At the end of the countdown of the timer, the signal from the control box 113 shuts off the fan unit 112 and releases the air solenoid valve 117 to its normally closed position. Next, the secondary water trap 321 is sealed by the control box 113, and the control box 113 issues a signal that the normally closed water solenoid valve 114 is briefly opened to supplement the secondary water trap 321 .

After a predetermined duration, a signal is sent from the control unit 113 to the water solenoid valve 114 to return to its normally closed position. This concludes the operational cycle of the present invention.

The invention is described as being mounted on two types of toilets: prepared toilets and non-prepared toilets. In the case of a toilet, two through holes 307 and 308 are present in a region 305 on either side of the flush tank tube 304 between the toilet seat anchoring aperture 306 and the flush tank 309. The diameter of the through hole is adapted to receive the tap water inlet tube 107 and the exhaust gas outlet tube 108, respectively, and to allow a reliable seal around the tube to ensure a sanitary environment on the toilet surface. The position of the through hole allows the venting device of the present invention to be centered in the rear of the toilet seat in a neat manner. The holes do not interfere with the function of other components of the toilet.

The through holes 307 and 308 can be fabricated as part of the toilet or safely and suitably drilled onto the horizontal surface 305 between the toilet seat and the flush tank without damaging any of the components of the toilet bowl or its components. Integrity.

Two through holes 307 and 308 disposed behind the race 311 on either side of the flush pipe 304 are sealed using a suitably sized sealing cap that can be used as a conventional toilet without a venting unit.

Tap water is supplied to the apparatus by connecting the toilet tap water outlet point 316 with an exhaust unit connection pipe 107 projecting from a point below the toilet bowl through hole 308 (via the pipe joint 318). It is most convenient to share tap water with the toilet flush tank inlet pipe 317 via the tee fitting 319.

On the opposite side of the toilet bowl, on the side of the exhaust take-off point 108 of the apparatus, a suitably sized secondary water trap 321 is communicated to the exhaust take-off point 108 through a through hole 308 directly below it. The other end of the secondary water trap is attached to a suitable point 322 downstream of the toilet main water collector 313. This safely communicates the exhaust and sewer conduit 315 of the device. Figures 4a and 5a show the venting device assembled to the preparation of the toilet bowl. The secondary water trap 321 is fabricated in a manner that is as compact as possible to prepare a portion of the toilet bowl (Fig. 3) that connects the drain 314 to the closest possible point upstream of the main water trap 313 without The function of the secondary water collector 321 is affected.

All pipe connections must be sealed to meet hygienic regulations and standards.

In the case of retrofitting the device to a non-prepared toilet bowl, since the through holes 307 and 308 and the secondary water trap 321 are not present, the tap water inlet 207 and the exhaust outlet 208 of the exhaust unit surround the bowl torso 310 and Attached to the associated attachment point below the horizontal surface 305 of the commode between the toilet seat anchor bolt hole 306 and the flush tank 309, similar to the method of preparing the commode as previously mentioned (respectively, the tap water inlet pipe 207 and the modified time) To the water collector 323).

In the case of the retrofitting device, all components within the exhaust unit and their associated connections are the same as described above with respect to the preparation of the toilet, except that the modified device housing 201 projects the tap water inlet 207 and the exhaust outlet tube 208, Positioned laterally on the bottom of the casing 203 to allow assembly and opening and closing of the unit without undue hindrance due to the tubes passing through them.

To allow for various geometric and sizing configurations associated with different commode models, as well as associated in-situ toilet space connectors and fittings (wall positioning, water pipes, main water trap shape and position, etc.), the shell protruding tube connectors 207 and 208 are made such that they project minimally from the housing 201 and thus allow the flexible pipe connector to be associated with its respective coupling (in the case of the exhaust pipe 208, the next time the water collector 323 and the tap water inlet pipe 207) In the case of the water pipe 318), as shown in Figure 4c.

The modified secondary water trap 323 is made of a suitable material to maintain its integrity throughout its life and has the smallest possible size and abrupt sensation to remain unobtrusive and undamaged.

Similar to the toilet bowl apparatus prepared in Fig. 1a, the proximity sensor tip 209 of the modified venting device will protrude from the front of the housing instead of protruding from the bottom housing 203 to allow the shell to be smoothly opened and closed. Body 201.

Thus, the only difference between the non-prepared toilet bowl and the tubing from which the toilet bowl is prepared is that in the prepared toilet, the two tubes 107 and 108 connected to the device pass through the horizontal surface 305 of the toilet bowl, while in the modified version They surround the commode to achieve the same purpose.

For the retrofitted assembly, the third aperture 324 is disposed downstream of the main water trap 313 of the toilet on the effluent passage 314, upstream of the toilet waste drain 315 and in communication with the secondary water trap 323. The third aperture 324 is suitably drilled into the toilet sump 3 at a location 314.

A representative version of the venting device (the toilet hopper for preparation) assumes an orientation in which the tap water inlet 107 is located on the left side and the exhaust gas outlet 108 is located on the right side when viewed from the front, as in Figure 1a (or 207) And 208 are used for the modified version of Figure 1b, respectively). All of the figures in this description of the invention describe this version. The device may be mirrored, which will also require that all connections to the device be mirrored, and therefore, all of the illustrations associated with this description will accordingly be mirror images of themselves.

Distinguishing between the type of proximity sensor required to raise/lower the toilet seat cover 312 and/or the toilet seat 311 and the user sitting on the toilet 301 and thus limit the operational cycle of the exhaust unit to be With the user sitting on the toilet seat, the control unit 113 can be programmed such that the proximity sensor switch 105 takes readings at preset intervals and compares the two simultaneous readings. Therefore, in the case where both sensor readings are recorded within a preset range of the sensor field of view, the user sitting on the toilet seat instead of moving briefly in the field of view of the sensor will have a higher Confidence.

The fastening of the venting unit closure can be easily accessible or not easily accessible. In the case of easy access, when the venting unit is attached to the toilet, the cover can be easily removed by removing the screw or releasing the easily accessible latch. In the case of a public toilet application, the cover removal is achieved via the screw of the base unit cover base, the screw of the bottom unit cover base can only be removed by releasing the exhaust unit from the toilet, which is required to be disconnected The steps of the water pipe 107 and the exhaust pipe 108 make undesired access and/or removal more difficult.

This control is based on the following summary, using the configuration of the prepared toilet exhaust unit of Figures 2a and 4c and 5a as a reference: 1) The control unit 113 is based on the confirmation from the proximity sensor switch 105(s) Signal to confirm the presence of the seated toilet user; 2) open the normally closed air solenoid valve 117 as the fan unit 112 is temporarily operated under high pressure to evacuate the secondary water trap 321 seal downstream via the sewage conduit 315 The exhaust gas and sewage conduit 315 in the sewage and thus the communication device; 3) when the fan unit 112 is operated at a low pressure, the air solenoid valve 117 remains open for continuous ventilation of the toilet bowl 302 malodorous gas; 4) the control unit 113 confirms the use The signal of the proximity sensor switch 105 exiting the toilet seat; 5) the control unit 113 starts to maintain the exhaust gas for a set period of time; 6) the air solenoid valve 117 is closed and the fan unit 112 is cut off; 7) water The solenoid valve 114 is opened to allow tap water to flow in (at a point below the outlet of the fan blower 112 in height to prevent water from flowing into the fan) and to pass through the exhaust gas outlet pipe 120 for replenishment Secondary water trap seal 321 for a preset period of time to ensure complete seal; 8) The electromagnetic valve 114 is closed to the end of the exhaust cycle.

Control unit 113 is a read only printed circuit board (PCB) or a programmable logic device (PLD). The PLD is more versatile to accommodate specific toilet needs, such as timer duration, the disconnect signal of the fan 112 after the user leaves the toilet seat, and the water battery valve 114 opening duration to supplement the secondary water trap 312 seal requirements. But the size is relatively large and more expensive. Read-only PCBs are cheaper, but do not allow program changes, depending on market segmentation and product range.

In the case of a wall-mounted toilet, the venting unit can be placed in a wall cavity behind the toilet bowl, which would require additional wall space to accommodate it. All connections and methods of operation remain the same except for certain dimensional changes.

In view of the foregoing disclosure, many modifications and variations can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be construed as being limited by the scope of the appended claims.

30‧‧‧ potty
101‧‧‧ solid moisture-proof container; housing
102‧‧‧Top cover
103‧‧‧Bottom; base on the bottom
104‧‧‧ slots
105‧‧‧Unit housing power conduit; water pipe; sensor switch
107‧‧‧Water supply pipe; tap water inlet pipe; exhaust unit connection pipe
108‧‧‧Exhaust pipe; exhaust outlet
109‧‧‧ sensor
110‧‧‧Exhaust unit intake port
111‧‧‧reducing tube
112‧‧‧Air fan blower; malodorous gas leaves the fan unit; fan unit
113‧‧‧Control unit; control box
Lines 113a, 113b, 113c, 113d‧‧
114‧‧‧Normally closed water valve; normally closed water solenoid valve
115‧‧‧Water pipes
117‧‧‧Normally closed air solenoid valve
118‧‧‧Exhaust pipe
120‧‧‧Exhaust pipe for tap water; exhaust pipe
122‧‧‧Fixed convex-concave peripheral lip
123‧‧‧Power cord
124‧‧‧Field of view of the sensor; power cord; unobstructed view
125‧‧‧External power supply
126‧‧‧ socket
201‧‧‧ device housing
203‧‧‧ shell; bottom shell
207‧‧‧Water inlet
208‧‧‧Exhaust outlet
209‧‧‧ sensor top
301‧‧‧ Toilet commode
302‧‧ ‧ toilet bowl; toilet commode
303‧‧‧Edge
304‧‧‧ flushing tank tube
305‧‧‧ horizontal surface of the barrel; area
306‧‧‧The toilet commode ring is attached with bolt holes; the toilet seat anchor hole
307, 308‧‧‧through holes
309‧‧‧ toilet flushing tank
310‧‧‧ tube around the barrel torso
311‧‧‧ Toilet seat
312‧‧‧Supply secondary water trap; toilet seat cover
313‧‧‧Water trap (siphon); main water trap
314‧‧‧Drainage pipe; sewage channel
315‧‧‧ toilet sewage pipe; sewage pipe
316‧‧‧ toilet tap water pipe; tap water; toilet tap water outlet
317‧‧‧ pipeline; toilet flush tank inlet pipe
318‧‧‧Water supply pipe; pipeline; pipe joint
319‧‧‧"three links"accessories; tee joints
320‧‧‧ Toilet Seat Hinge Anchor
321‧‧‧Exhaust secondary water trap
322‧‧‧appropriate point
323‧‧‧Refit secondary water trap
324‧‧‧ third hole
332‧‧‧Connected points

The drawings are briefly described as follows:

1a is a conceptual perspective view of an assembled and closed toilet exhaust housing having an automatic exhaust system that can be attached to a prepared toilet bowl for use at the rear of the toilet seat and the flush tank in accordance with the present invention. The device water inlet and the venting outlet are received in the modified toilet bowl level between.

Figure 1b is a front elevational view of an assembled and closed toilet venting housing having an automatic venting system that can be retrofitted to the unprepared toilet commode level between the rear of the toilet seat and the flush tank in accordance with the present invention. Inside the surface.

2a is a perspective view of a toilet vent housing of the present invention for a prepared toilet commode with the top cover removed to show the components of the toilet commode contained within the housing for preparation.

Figure 2b is a top plan view of the toilet venting device of the present invention for a prepared toilet bowl, wherein the casing cover is removed to show its components, indicating the cross-sectional view AA position of the tap water supply pipe supply in communication with the exhaust pipe .

Figure 2c is a cross-sectional view taken along line AA of the toilet venting exhaust pipe of the present invention in communication with the water replenishing tube of Figure 2b, the secondary of the device for feeding the device downstream of the water replenishing tube upon completion of the venting cycle Water trap.

Figure 3 is a perspective view of a prepared toilet bowl having vertical through holes to accommodate the water and exhaust pipes of the present invention.

4a is a perspective view of a toilet vent attached to a modified toilet bowl, the assembled toilet seat or cover not shown to illustrate the position and associated connections of the present invention.

Figure 4b is similar to Figure 4a, but with the attached toilet seat in a lowered position and the cover in an elevated position to show the installed appearance relative to the present invention during use and to indicate the direction of view of the proximity sensor.

Figure 4c is a perspective view of the device retrofitted to a conventional toilet bowl with the assembled toilet seat and cover in a lowered position to illustrate the position and associated connections of the present invention.

Figure 5a is a perspective view of the device attached to the modified toilet bowl with the assembled seat cover in an elevated position and the seat in a lowered position to illustrate the position of the present invention during its operation.

Figure 5b is a right side perspective view of the apparatus retrofitted to a conventional toilet bowl with the assembled toilet seat cover in a lowered position to illustrate the position of the present invention and the connection to the secondary water trap.

Figure 6a is a top view of the invention attached to a modified toilet bowl showing the position of the exhaust unit and indicating the section line B-B.

Figure 6b is a cross-sectional view taken along B-B showing the flow of malodorous air from the toilet bowl to the sewage drain, bypassing the flow of the toilet main water trap via the present invention and its associated accessories.

101‧‧‧ solid moisture-proof container; housing

102‧‧‧Top cover

103‧‧‧Bottom; base on the bottom

104‧‧‧ slots

105‧‧‧Unit housing power conduit; water pipe; sensor switch

107‧‧‧Water supply pipe; tap water inlet pipe; exhaust unit connection pipe

108‧‧‧Exhaust pipe; exhaust outlet

109‧‧‧ sensor

110‧‧‧Exhaust unit intake port

Claims (15)

A ventilated toilet device attached to a prepared toilet bowl, the prepared toilet bowl including a water tank and a bowl. The toilet component construction material may be ceramic, plastic, metal or any other solid material in accordance with relevant building and sanitary regulations and standards, and the ventilation means may be attached. The prepared toilet bowl provides sufficient space and geometry to receive the venting device of the present invention and its associated components on a horizontal surface between the toilet seat and the flush tank behind the toilet seat. The toilet bowl prepared as described above is a typical toilet bowl, but has two vertical through holes on either side of the toilet flushing supply pipe on the horizontal surface between the back of the toilet seat and the flush tank. The two vertical through holes match the dedicated tube position of the exhaust at the bottom surface of the device. The vertical through hole may be part of the toilet bowl manufacturing stage or the through hole may be drilled into a suitable toilet bowl if technically feasible and does not adversely affect the integrity and performance of the toilet bowl. The container is fastened and closed via a screw that penetrates from the bottom surface of the shell that is connected to the cover via an adjacent screw socket to prevent tampering with the contents of the unit. An air inlet port of the ventilation unit projects from the front of the device and is disposed at a height above the rear end of the toilet seat above the basin overflow line. The means for attaching the ventilator housing to the toilet bowl is effected via a fastening anchor bolt of the toilet seat, the fastening bolt of the toilet seat passing through the side of the exhaust unit air inlet port side Two fastening slots for the exhaust unit. Moreover, the tap water inlet and the air outlet tube of the exhaust unit extend vertically downward through the vertical through holes adjacent to the commode to be connected (and securely mate with) their respective pipes from the bottom surface of the ventilating device. ). Access to the components of the device requires corresponding removal of the connected tubular members. The device of claim 1 which is made of a matching top and bottom waterproof container covering, after which a moisture-proof container is obtained. The venting unit container has three different sized openings when closed: the smallest for accommodating the power cord (on one side of the housing, near the bottom), the other for the tap water supply tube and the third (and the largest) for the exhaust manifold. The water and exhaust pipes of the apparatus are positioned at opposite outer ends of the container, the space available within the container is limited by a defined distance, the shape and size of which is ergonomically related to the toilet bowl Beautiful design parameters are used to decide. All openings are sealed around their respective conduits to prevent water/moisture from entering the container. The device facility of claim 2, which has an auxiliary pipe that communicates with an exhaust gas outlet pipe of the exhaust device that passes through the toilet bowl matching through hole (at an exit point passing through a lower side of the through hole) ) A secondary water trap with an appropriate seal height determined by the relevant residential building and sanitary regulations. The secondary water trap reliably bypasses the toilet main water trap and communicates in a unidirectional manner with a venting exhaust outlet pipe extending vertically downward through the commode through hole and a main collecting water in the toilet The connection point downstream of the device to the toilet drain is independent of the type of main water collector. In the case of a prepared toilet bowl, the secondary water trap is made as part of the toilet bowl using a suitable material and a space saving method. The device facility of claim 3, wherein communication between the secondary water trap and the toilet discharge outlet downstream of the toilet main water trap is via an appropriate presence in the toilet drain The size of the hole is achieved. The holes may be drilled using suitable methods compatible with the drain material and suitably tightened to ensure that sewage gases or contaminants do not leak into the toilet space. The device facility of claim 4, wherein the toilet ventilation device houses a low voltage fan air blower. The fan blower of the ventilation unit provides at least two indenter and flow rate requirements: one is to evacuate the secondary water trap seal and the other is a suitable comfortable ventilation of the toilet bowl malodorous gas, such as by a local related residential building And as prescribed by the Health Regulations. The device facility of claim 5, wherein the tap water is fed to the exhaust device via a water inlet pipe, the water inlet pipe passing through one of the commode through holes and vertically passing through the ventilating The bottom of the device case. The tap water supplements the secondary water trap seal at the end of the fan blower ventilation. The tap water flow is controlled by a normally closed solenoid valve. As with the device facility described in claim 6, the utility power (via a suitable power source) or battery power provides low voltage power sufficient to safely operate the electrical components of the ventilation unit. A toilet ventilation unit assembled with a normally closed air solenoid valve included in the same unit housing as described in claim 7. The normally closed air solenoid valve is located between the fan unit outlet and the secondary water trap to ensure unidirectional air flow from the fan unit toward the secondary water trap. The device facility of claim 8 having a proximity sensor switch located on a front outer side surface of the ventilation unit to sense the presence of a seated toilet user and to signal the exhaust control unit . The proximity sensor is positioned such that its field of view records the presence of the seated toilet user and is not obscured by the toilet seat cover and/or the toilet seat in both the raised and lowered positions. Proximity sensor switches must be suitable for recording the presence and departure of a person. The proximity sensor switch sensing range covers the distance between the top of the sensor and the front tip of the toilet bowl edge. The device facility of claim 9 having a control unit housed within the unit container, the control unit arranging electromechanical components to operate to effect an exhaust cycle of the ventilation unit. The exhaust cycle includes: 1) the control unit confirms the presence of the seated toilet user based on the confirmation signal(s) from the proximity sensor switch, 2) cooperates with the fan unit in a temporary operation of high pressure a normally closed air solenoid valve to evacuate the secondary water trap seal to the downstream sewage and thus to communicate with the exhaust and sewage drain of the unit, 3) while the fan unit is operating at low pressure, the air solenoid valve remains open to allow the toilet The potty odorous air is continuously ventilated, 4) the control box confirms the proximity sensor switch signal of the user leaving the toilet seat; 5) the timer starts to keep the exhaust gas for a set period; 6) the air solenoid valve is closed and the fan unit is subsequently cut off 7) The water solenoid valve opens to allow tap water to flow in and through the exhaust gas outlet tube to replenish the sprayed secondary water trap seal for a predetermined period of time to ensure complete sealing; 8) the water solenoid valve closes to end the exhaust cycle. The device facility of claim 10, wherein the secondary water trap water seal is replenished via a normally closed water solenoid valve enclosed within the ventilation unit at the end of the unit venting procedure. The water solenoid valve is connected to a tap water supply. The water valve is controlled by the ventilation unit control unit such that the necessary amount of water is supplemented by controlling the duration of the water valve to satisfy the necessary depth of the water trap seal. The water valve outlet communicates with a blower fan outlet tube in a venting unit housing downstream of the ventilating fan unit at a point that is lower than a height of the blower fan exit point. The device facility of claim 11 is retrofitted to a non-prepared toilet by attaching the exhaust unit housing to any available surface of the toilet. Both the tap water inlet tube and the exhaust gas outlet tube of the venting device extend laterally from the opposite side of the device housing via the end of the threaded tube. The protruding threaded tube end extends through a hole present in a side of the shell to allow smooth opening and closing of the top of the unit housing. All openings are sealed around their respective conduits to prevent water/moisture from entering the container. The projecting tube extends laterally to a flexible pipe attachment that is just enough to be external to the venting container, thus via a conduit surrounding its commode trunk between the toilet bowl and the flush tank and its respective connector ( The tap water pipe and the secondary water trap are connected to reach the lower end of the horizontal surface between the toilet bowl and the flush tank, i.e., to the same connection position as in the case of preparing the toilet bowl as described in detail in the above claim. The device facility of claims 11 and 12, wherein the control unit compares two or more proximity sensor readings separated by short time intervals to distinguish the field of view of the sensor when raising/lowering the toilet seat/cover The period of time that is temporarily blocked and the time when the user is sitting on the toilet. To be more accurate, another timing proximity sensor scan can be programmed into the control unit to reduce the chance of improperly starting the exhaust system exhaust cycle. The apparatus according to claims 11, 12 and 13, wherein the exhaust system is mounted on a wall mounted toilet, wherein the exhaust unit is placed in a wall cavity behind the toilet seat, the proximity sensor is from the The surface of the closed wall cavity protrudes. The device facility of claims 11, 12, 13 and 14, wherein the invention is integrated into a "smart" electromechanical toilet seat system or "smart" toilet whereby the system will provide a signal to the user. In this case, the exhaust system of the present invention can remove the proximity sensor switch. The venting unit is integrated into a "smart" toilet/"smart" toilet housing for ergonomics and aesthetic purposes.