Toilet drainage and deodorization system

Abstract

The utility model provides a toilet drainage deodorization system which comprises a pedestal pan cover, a plurality of drainers, a drainage main pipe and an exhaust main pipe, water seals are arranged in the drainers, the pedestal pan cover comprises a cushion ring, a cover plate and an air suction assembly, the air suction assembly comprises an exhauster, and a main air suction pipe communicated with the interior of the pedestal pan is arranged on the exhauster. An air outlet of the exhauster is communicated with the main exhaust pipe, each drainer is provided with a water supplementing pipe communicated with the water tank, the main air suction pipe is provided with an air-sensitive detection head, the cushion ring is provided with a pressure sensor, and one side, close to the cushion ring, of the cover plate is provided with an infrared sensor. When the device is used in a toilet, the exhauster works to pump and drain odor generated by a pedestal pan, a drainage pipe and a floor drain, and when water is flushed, the water inlet valve in the water tank supplements water to the water seal in the drainer, so that the water seal in the drainer can be effectively prevented from losing water and being invalid due to evaporation and siphoning; and water stored in the water seal can be prevented from being changed into a hotbed for breeding mosquitoes and bacteria for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of toilet drainage and deodorization, in particular to a toilet drainage and deodorization system. Background Art

[0002] After using the bathroom for a period of time, it is often difficult to avoid the emergence of odor, especially in the summer when it becomes more serious. The odor in the bathroom not only affects the mood of the residents, but can even cause the spread of viruses and bacteria, so the odor in the bathroom must be taken seriously.

[0003] The odor in the bathroom mainly comes from the odor generated when the toilet is used, as well as the odor generated by the return air from the drain pipe, floor drain, and sewer. The best way to remove the odor generated when the toilet is used is to exhaust it, but the odor-proof toilets among existing products are expensive. If you only replace the cheaper exhaust toilet cover, it will be difficult to adapt to the original toilet; for the return odor from the drain pipe, floor drain, and sewer, although there are various odor-proof products on the market, the best and most convenient to clean ones are still those with water seals, but the water in the water seal cannot be updated in time, and the water stored for too long will become a breeding ground for mosquitoes and bacteria, emitting odor; in addition, the water in the water seal may also fail due to evaporation and failure to replenish water in time; it is also possible that when the toilet flushes a lot of water to discharge sewage, the air pressure in the sewage pipe is significantly lower than the atmospheric pressure, causing the drain outlet and floor drain to inhale air into the sewage pipe, resulting in the water in the water seal of the drain outlet and floor drain being emptied and forming a siphon phenomenon, thereby causing the water seal to lose water and fail.

[0004] Therefore, how to treat the odor generated by toilets, drain pipes, floor drains, and sewers is a problem that technicians in this field urgently need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the disadvantage that the odor generated by the toilet, drainage pipe, floor drain and drain in the prior art is difficult to be treated, the utility model provides a toilet drainage deodorization system.

[0006] The utility model solves the technical problem by adopting the following technical scheme: a toilet drainage and deodorization system, comprising a toilet seat cover, a plurality of drainers, a drainage main pipe and an exhaust main pipe, wherein a water seal is arranged in the drainer, the toilet seat cover comprises a seat cushion ring, a cover plate and an air suction assembly, the air suction assembly comprises an exhaust machine, the exhaust machine is provided with a main air suction pipe connected with the toilet seat, and an auxiliary exhaust pipe connected with each drainer, the air outlet of the exhaust machine is connected with the exhaust main pipe, each drainer is provided with a water replenishment pipe connected with a water tank, the water replenishment pipe is provided with a water replenishment valve, the water tank is provided with a water inlet valve for replenishing water to the water tank and the water replenishment pipe, a gas-sensitive detection head is arranged on the main air suction pipe partially arranged in the toilet seat, a pressure sensor is arranged on the seat cushion ring, an infrared sensor is arranged on the side of the cover plate close to the seat cushion ring, and the gas-sensitive detection head, the pressure sensor and the infrared sensor are all connected with the control panel circuit of the exhaust machine.

[0007] Each drainer can be used for bathroom (tub) drainage, washbasin drainage, washing machine drainage, and floor drain drainage. In order to prevent odor from escaping from the drainage pipe, a water seal is set in the drainer used; in the building drainage pipe, the water seal refers to a water column of a certain height set under the sanitary ware drainer to resist the change of air pressure difference in the drainage pipe and prevent the gas in the drainage pipe system from entering the room; after the toilet is flushed, the water tank is replenished with water through the water inlet valve, and the water seals in each drainer are replenished with water through the water replenishment pipe. The water replenishment valve is used to adjust the water pressure of the water outlet of the water replenishment pipe. When the water tank has enough water, the water inlet valve automatically stops replenishing water; because the toilet is used most frequently in the bathroom, after pressing the toilet flush button, when the water inlet valve replenishes water in the water tank, the water replenishment pipe automatically replenishes water to each drainer, and the water replenishment valve adjusts the water replenishment flow rate of the water replenishment pipe, which can effectively prevent the water seal in the drainer from losing water due to evaporation and siphonage, and can also prevent the water stored in the water seal from becoming a breeding ground for mosquitoes and bacteria if it is not replaced for a long time.

[0008] During the use of the toilet, the infrared sensor is used to provide an opening signal to the exhaust fan when the user is in a standing position, the pressure sensor is used to provide an opening signal to the exhaust fan when the user is in a sitting position, and the gas sensitive detection head is used to provide an opening signal to the exhaust fan when the odor concentration in the toilet is higher than a certain value, so that the odor generated during urination and defecation when using the toilet can be automatically or manually extracted.

[0009] Furthermore, in order to adapt to toilets of different shapes and sizes, the main air intake pipe includes a connecting pipe, a plastic-coated corrugated air intake pipe, a front and rear telescopic tube, and an upper and lower telescopic tube. The plastic-coated corrugated air intake pipe is U-shaped and close to the side wall of the toilet opening. The air sensitive detection head is arranged on the lower side of the plastic-coated corrugated air intake pipe. A plurality of air intake holes are arranged at intervals on the plastic-coated corrugated air intake pipe. The upper and lower telescopic tubes are connected to the middle position of the plastic-coated corrugated air intake pipe. The connecting pipe is arranged on one side of the rotation center of the seat cushion ring. The upper ends of the upper and lower telescopic tubes are provided with front and rear telescopic tubes connected to the connecting pipe.

[0010] The plastic-coated corrugated air intake pipe, upper and lower telescopic pipes, and front and rear telescopic pipes are made of stainless steel and covered with smooth plastic for easy cleaning. The plastic-coated corrugated air intake pipe is close to the side wall of the toilet opening, avoiding the water outlet, and can be bent and shaped according to the shape of the toilet opening. The upper and lower telescopic pipes can be adjusted up and down, and the front and rear telescopic pipes can be adjusted front and back, which can adapt to most existing toilets.

[0011] Furthermore, the exhaust fan includes a shell, a motor and a wind wheel are arranged in the shell, a first air inlet is arranged on the shell to cooperate with the main suction pipe, a second air inlet is arranged on the shell to cooperate with the auxiliary exhaust pipe, a check valve is arranged at the air outlet of the exhaust fan, an operation panel is arranged on the outside of the shell, and a manual switch, an automatic switch and a buzzer connected to the control panel line are arranged on the operation panel.

[0012] When the exhaust fan is started, the odor in the toilet is pumped out through the main suction pipe, and the odor at each drainer is pumped out through the auxiliary exhaust pipe. The exhaust fan discharges the odor into the external integrated pipe well through the exhaust main pipe. A check valve is set at the exhaust port to prevent odor backflow. The exhaust fan can be started by a manual switch or an automatic switch, and can be started by infrared sensors, pressure sensors and gas sensitive detection heads.

[0013] When there is no signal from the infrared sensor or pressure sensor, press the flush button on the water tank and the exhaust machine will shut down after a few seconds. If the flush is not completed within the preset time, the buzzer will sound to remind people to flush the toilet.

[0014] Further, the drainer includes an above-ground drainer, which includes a first upper shell and a first lower shell. A downpipe connected to a drainage branch pipe is provided in the first lower shell. The upper end of the downpipe protrudes from the bottom of the first lower shell. A sealing cover is provided at the upper end of the downpipe. The downpipe, the first lower shell and the sealing cover together constitute a water seal structure of the above-ground drainer. The drainage branch pipe is connected to the drainage main pipe. A plurality of air holes are provided on the circumferential side wall of the first upper shell. A first water replenishment port connected to a water replenishment pipe is provided on the first upper shell. A first water inlet connected to a washbasin or a washing machine is provided on the first upper shell. A first exhaust port connected to an auxiliary exhaust pipe is provided on the first upper shell.

[0015] The above-ground drain is mainly suitable for drainage on the ground such as washbasins and washing machines. The upper end of the downpipe protrudes from the bottom of the first lower shell, a water column of a certain height is arranged in the first lower shell, and a sealing cover is buckled on the upper end of the downpipe to form a water seal and deodorization structure to prevent the dirty gas from escaping from the drainage branch pipe through the air hole.

[0016] Further, the drainer includes a semi-buried drainer, which includes a second upper shell and a second lower shell. A downpipe connected to a drainage branch pipe is provided in the second lower shell. The upper end of the downpipe protrudes from the bottom of the second lower shell. A sealing cover is provided at the upper end of the downpipe. The downpipe, the second lower shell and the sealing cover together constitute a water seal structure of the semi-buried drainer. The drainage branch pipe is connected to the drainage main pipe. A porous cover plate is provided at the opening at the upper end of the second lower shell. Mutually matching magnets are provided between the porous cover plate and the second upper shell. A plurality of water flow outlets are provided on the circumferential side wall of the second upper shell. A second water replenishment outlet connected to the water replenishment pipe is provided on the second upper shell. A second exhaust outlet connected to the auxiliary exhaust pipe is provided on the second upper shell.

[0017] Semi-buried drains are suitable for general floor drains that do not require frequent cleaning and are difficult to arrange underground exhaust pipes and underground water supply pipes; semi-buried drains are divided into upper and lower parts, which are attracted by magnets. When the floor drain has been installed and does not want to be modified, the upper part of the semi-buried drain is taken and attracted to the original floor drain by magnets, which can also play the role of increasing exhaust, water seal and water supply. The water outlet is set to facilitate the water on the ground to flow into the semi-buried drain from the water outlet.

[0018] Further, the drainer includes a fully buried drainer, which includes a third lower shell, a downpipe connected to a drainage branch pipe is provided in the third lower shell, the upper end of the downpipe protrudes from the bottom of the third lower shell, a sealing cover is provided on the upper end of the downpipe, the downpipe, the third lower shell and the sealing cover together constitute a water seal structure of a semi-buried drainer, the drainage branch pipe is connected to the drainage main pipe, a porous cover plate is provided at the opening at the upper end of the third lower shell, a third water replenishment port connected to the water replenishment pipe is provided on the side wall of the third lower shell, and a third exhaust port connected to the auxiliary exhaust pipe is provided on the side wall of the third lower shell.

[0019] Fully buried drains are suitable for shower drainage, which requires frequent cleaning and can be equipped with underground exhaust pipes and underground water supply pipes. By using automatic water supply from the water tank, it can effectively prevent the water seal in the drainage system composed of above-ground drains, semi-buried drains and fully buried drains from losing water due to evaporation and siphoning, and can also prevent the water seal from stinking due to water storage for too long.

[0020] The beneficial effects of the utility model are as follows: the utility model provides a toilet drainage and deodorization system. When a toilet is used in the toilet, an exhaust fan is used to extract the odor generated by the toilet, a drainage pipe and a floor drain. When flushing, the water inlet valve in the water tank replenishes water to the water seal in the drainer, which can effectively prevent the water seal in the drainer from losing water due to evaporation and siphoning and becoming ineffective, and can also prevent the stored water in the water seal from becoming a breeding ground for mosquitoes and bacteria if it is not replaced for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of the best embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the best embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the installation structure of the toilet seat cover;

[0025] Figure 4 It is a schematic diagram of the structure of the toilet seat cover;

[0026] Figure 5 It is a schematic diagram of the structure of the exhaust machine;

[0027] Figure 6 is a cross-sectional schematic diagram of an exhaust machine;

[0028] Figure 7 It is a schematic diagram of the structure of the above-ground drain;

[0029] Figure 8 It is a cross-sectional schematic diagram of an above-ground drain;

[0030] Fig. 9 It is a schematic diagram of the structure of a semi-buried drainer;

[0031] Fig.10 It is a cross-sectional schematic diagram of a semi-buried drain;

[0032] Fig.11 It is a structural diagram of a fully buried drainer;

[0033] Fig.12 It is a cross-sectional schematic diagram of the cooperation between the fully buried drainer and the auxiliary exhaust pipe;

[0034] Fig.13 This is a diagram of the water replenishment system.

[0035] In the figure: 1, toilet, 101, tank body, 102, cushion ring, 103, cover plate, 104, water tank, 106, gas sensitive detector, 107, pressure sensor, 108, infrared sensor, 2, drainage pipe, 3, exhaust pipe, 4, exhaust fan, 401, shell, 402, wind wheel, 403, first air inlet, 404, second air inlet, 405, check valve, 406, manual switch, 407, automatic switch, 408, buzzer, 409, air outlet, 5, main suction pipe, 501, connecting pipe, 502, plastic-coated corrugated suction pipe, 503, front and rear telescopic pipes, 504, upper and lower telescopic pipes, 6, auxiliary exhaust pipe, 601, exhaust Riser, 7, above-ground drainer, 701, first upper shell, 702, first lower shell, 703, air hole, 704, first water replenishment port, 705, first water inlet, 706, first exhaust port, 8, semi-buried drainer, 801, second upper shell, 802, second lower shell, 803, magnet, 804, water outlet, 805, second water replenishment port, 806, second exhaust port, 9, fully buried drainer, 901, third lower shell, 902, third water replenishment port, 903, third exhaust port, 10, drainage branch pipe, 11, downpipe, 12, sealing cover, 13, porous cover plate, 14, water replenishment pipe, 15, water replenishment valve, 16, water inlet valve. DETAILED DESCRIPTION

[0036] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0037] like Figure 1-4 As shown, a toilet drainage and deodorization system of the utility model comprises a toilet seat cover, a plurality of drainers, a drainage main pipe 2 and an exhaust main pipe 3, wherein a water seal is arranged inside the drainer, the toilet seat cover comprises a seat cushion 102, a cover plate 103 and an air suction assembly, the air suction assembly comprises an exhaust machine 4, the exhaust machine 4 is provided with a main air suction pipe 5 connected to the tank body 101, and an auxiliary exhaust pipe 6 connected to each drainer, the air outlet 409 of the exhaust machine 4 is connected to the exhaust main pipe 3, and each drainer is provided with a water supply pipe connected to the water tank 104. The water supply pipe 14 is provided with a water supply valve 15, the water tank 104 is provided with a water inlet valve 16 for supplying water to the water tank 104 and the water supply pipe 14, the main air intake pipe 5 partially arranged in the pool body 101 is provided with a gas sensitive detector 106, the seat cushion 102 is provided with a pressure sensor 107, and the cover plate 103 is provided with an infrared sensor 108 on the side close to the seat cushion 102, and the gas sensitive detector 106, the pressure sensor 107 and the infrared sensor 108 are all connected to the control panel line of the exhaust fan 4.

[0038] like Figure 5 ,6 As shown, the exhaust fan 4 includes a shell 401, a motor and a wind wheel 402 are arranged in the shell 401, a first air inlet 403 cooperating with the main suction pipe 5 is provided on the shell 401, a second air inlet 404 cooperating with the auxiliary exhaust pipe 6 is provided on the shell 401, a check valve 405 is provided at the air outlet 409 of the exhaust fan 4, an operation panel is provided on the outside of the shell 401, and a manual switch 406, an automatic switch 407 and a buzzer 408 connected to the control panel line are provided on the operation panel.

[0039] like Figure 7 , 8 As shown, the drainer includes an above-ground drainer 7, which includes a first upper shell 701 and a first lower shell 702. A downpipe 11 connected to a drainage branch pipe 10 is provided in the first lower shell 702. The upper end of the downpipe 11 protrudes from the bottom of the first lower shell 702. A sealing cover 12 is buckled on the upper end of the downpipe 11. The downpipe 11, the first lower shell 702 and the sealing cover 12 together constitute a water seal structure of the above-ground drainer 7. The drainage branch pipe 10 is connected to the drainage main pipe 2. A plurality of air holes 703 are provided on the circumferential side wall of the first upper shell 701. A first water replenishment port 704 connected to a water replenishment pipe 14 is provided on the first upper shell 701. A first water inlet 705 connected to a washbasin or a washing machine is provided on the first upper shell 701. A first exhaust port 706 connected to an auxiliary exhaust pipe 6 is provided on the first upper shell 701.

[0040] like Fig. 9 , 10 As shown, the drainer includes a semi-buried drainer 8, and the semi-buried drainer 8 includes a second upper shell 801 and a second lower shell 802. The second lower shell 802 is provided with a downpipe 11 connected to the drainage branch pipe 10, and the upper end of the downpipe 11 protrudes from the bottom of the second lower shell 802. A sealing cover 12 is buckled on the upper end of the downpipe 11. The downpipe 11, the second lower shell 802, and the sealing cover 12 together constitute a water seal structure of the semi-buried drainer 8. The drainage branch pipe 10 is connected to the drainage main pipe 2. A porous cover plate 13 is provided at the opening of the upper end of the second lower shell 802. Mutually matching magnets 803 are provided between the porous cover plate 13 and the second upper shell 801. A plurality of water flow ports 804 are provided on the circumferential side wall of the second upper shell 801. A second water replenishment port 805 connected to the water replenishment pipe 14 is provided on the second upper shell 801. A second exhaust port 806 connected to the auxiliary exhaust pipe 6 is provided on the second upper shell 801.

[0041] like Fig.11 , 12As shown, the drainer includes a fully buried drainer 9, and the fully buried drainer 9 includes a third lower shell 901. A downpipe 11 connected to a drainage branch pipe 10 is provided in the third lower shell 901. The upper end of the downpipe 11 protrudes from the bottom of the third lower shell 901. A sealing cover 12 is buckled on the upper end of the downpipe 11. The downpipe 11, the third lower shell 901, and the sealing cover 12 together constitute a water seal structure of a semi-buried drainer 9. The drainage branch pipe 10 is connected to the drainage main pipe 2. A porous cover plate 13 is provided at the opening of the upper end of the third lower shell 901. A third water replenishment port 902 connected to a water replenishment pipe 14 is provided on the side wall of the third lower shell 901. A third exhaust port 903 connected to an auxiliary exhaust pipe 6 is provided on the side wall of the third lower shell 901.

[0042] The main air intake pipe 5 includes a connecting pipe 501, a plastic-coated corrugated air intake pipe 502, front and rear telescopic pipes 503 and upper and lower telescopic pipes 504. The plastic-coated corrugated air intake pipe 502 is U-shaped and closely attached to the opening side wall of the pool body 101. The gas-sensitive detection head 106 is arranged on the lower side of the plastic-coated corrugated air intake pipe 502. A plurality of air intake holes are arranged at intervals on the plastic-coated corrugated air intake pipe 502. The upper and lower telescopic pipes 504 are connected to the middle position of the plastic-coated corrugated air intake pipe 502. The connecting pipe 501 is arranged on one side of the rotation center of the seat cushion 102. The upper ends of the upper and lower telescopic pipes 504 are provided with front and rear telescopic pipes 503 connected to the connecting pipe 501.

[0043] The auxiliary exhaust pipe 6 is used to connect the exhaust fan 4 and each drain. The exhaust fan 4 is installed on the rear side of the toilet 1. The installation height is generally about 21.5 cm. The drains are located at different positions in the bathroom. According to the layout requirements, the auxiliary exhaust pipe is composed of multiple sections of horizontally arranged exhaust cross pipes and vertically arranged exhaust risers 601.

[0044] like Fig.13 As shown, two water pipes are divided at the water inlet of the water inlet valve 16, one water pipe is the main water pipe for inletting water into the water tank 104, and the other water pipe is the water supply pipe 14 for supplying water to each drainer. The water supply pipe 14 is provided with a water supply valve 15, and then it is divided into at least three water pipes for the above-ground drainer 7, the semi-buried drainer 8, and the fully buried drainer 9. The one-to-many structure has the effect of reducing pressure and pressure, and combined with the adjustment of the water supply valve 15, the water flow at the outlet of the water supply pipe 14 of each drainer can be slow and not splashed;

[0045] In addition, a vertically arranged exhaust riser 601 with a certain length is provided between the exhaust port of the above-ground drain 7 (used for basin and washing machine drainage), the semi-buried drain 8 (used for floor drain), and the fully buried drain 9 (used for bathroom) and the auxiliary air suction pipe 6, and the above-ground drain 7 has an air hole 703 and the semi-buried drain 8 has a water outlet 804, which can drain water when the water volume is too large, and prevent the sewage and replenishment water from flowing back into the exhaust riser 601. Among them, the exhaust riser 601 between the third exhaust port 903 of the fully buried drain 9 and the auxiliary air suction pipe 6 is the longest, which is more than 20 cm above the ground (the exhaust machine is installed at the rear side of the toilet, and the distance between the auxiliary air suction pipe and the ground is certain, generally the actual height is 21.5 cm, that is, the height of the exhaust riser 601 set on the ground is generally 21.5 cm), and this does not count the height of the exhaust riser 601 set below the floor.

[0046] In addition, the wind pressure of the exhaust fan in a household bathroom is generally not higher than 300Pa when the building is less than 20 floors high, and is generally not higher than 400Pa when the building is more than 20 floors high. The wind pressure of the exhaust fan used in this application is also not greater than 400Pa. The fully buried drain 9, which is most likely to form water accumulation, is connected to a vertical exhaust riser 601 at least 20 cm high. The pressure of sucking up a 20 cm water column is P=1000kg / m³*9.8N / kg*0.2m=1960Pa (p=ρgh). In addition, the partial pressure reduction of the three bypass ports, namely the air intake port of the toilet, the exhaust port of the ground drain 7, and the exhaust port of the semi-buried drain 8, the exhaust wind pressure of the exhaust port of the fully buried drain 9 is about 400Pa / 4=100Pa. Considering the fluctuation value of 150Pa, it is obvious that 1960Pa>1 50Pa, even if there is water in the exhaust port of the fully buried drainer 9, it will not be sucked into the auxiliary air intake pipe 6 (at this time, if the exhaust riser 601 of the fully buried drainer 9 is partially blocked by water, it means that the drainage pressure of the downpipe 11 of the fully buried drainer 9 is relatively large, which is enough to prevent the foul and smelly gas in the drainage branch pipe 10 from flowing back into the room, and has played a role in indoor odor prevention. At this time, it does not matter if the fully buried drainer 9 cannot be exhausted normally), and the accumulated water in the third exhaust port 903 pipe will flow into the fully buried drainer 9 under the action of gravity and be discharged when the fully buried drainer 9 is not exhausting.

[0047] Working process:

[0048] The first air inlet 403 extracts the odor in the pool body 101 through the plastic-coated corrugated suction pipe 502, and the second air inlet 404 extracts the dirty air from the above-ground drainer 7, the semi-buried drainer 8, and the fully buried drainer 9 through the exhaust branch pipe. The second air inlet 404 is arranged close to the bottom. If there is condensation of water vapor in the exhaust fan 4, it can flow into the nearest drainer along the second air inlet 404.

[0049] Automatic switch 407 has three gears:

[0050] 1. Turn off the power when the automatic switch 407 is in the middle position.

[0051] 2. When the automatic switch 407 is upward, the infrared sensor 108 and the pressure sensor 107 are connected. At this time, the exhaust machine 4 is automatically turned on according to any signal sent back by the infrared sensor 108 and the pressure sensor 107. The wind wheel 402 sucks the odorous gas from the first air inlet 403 and the second air inlet 404, and discharges the odorous gas into the integrated pipe well through the check valve 405 and the exhaust main pipe 3 of the exhaust machine 4. At this time, the closing of the exhaust machine 4 is controlled by the flush button of the toilet 1. When there is no signal from the infrared sensor 108 and the pressure sensor 107, press the flush button of the toilet 1, and the exhaust machine 4 will be shut down immediately after a delay of 60 seconds. If the shutdown signal given by the flush button of the toilet 1 is not received within 60 seconds, the buzzer 408 will sound for 60 seconds to remind people to flush the toilet 1 and automatically shut down the exhaust machine 4 after a delay of 2 minutes;

[0052] 3. When the automatic switch 407 is downward, the infrared sensor 108, the pressure sensor 107 and the gas-sensitive detection head 106 are connected. At this time, the exhaust fan 4 is automatically turned on according to any signal sent back by the infrared sensor 108 and the pressure sensor 107 or the opening signal of the gas-sensitive detection head 106. The wind wheel 402 sucks the odorous gas from the first air inlet 403 and the second air inlet 404, and discharges the odorous gas into the integrated pipe well through the check valve 405 of the exhaust fan 4 and the exhaust main pipe 3 in turn; at this time, the closing of the exhaust fan 4 is controlled by the gas-sensitive detection head 106. When the odor concentration detected by the gas-sensitive detection head 106 drops to a certain standard and gives a closing signal, the exhaust fan 4 is closed.

[0053] When the manual switch 406 is pressed, the exhaust fan 4 is unconditionally connected, and when it is lifted, it is in automatic control state.

[0054] Because the toilet 1 is used most frequently in the bathroom, after pressing the flush button of the toilet 1, when the water inlet valve 16 replenishes water in the water tank 104, each drainer is automatically replenished with water through the water replenishment pipe 14, which can effectively prevent the water seal in the drainer from losing water due to evaporation and siphoning and prevent the water in the water seal from becoming a breeding ground for mosquitoes and bacteria if it is not replaced for a long time.

[0055] Directions and references (e.g., up, down, left, right, etc.) in the present invention may only be used to assist in the description of features in the accompanying drawings. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0056] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A toilet drainage deodorization system, characterized by: The invention comprises a toilet seat cover, a plurality of drains, a drain main pipe (2) and an exhaust main pipe (3), wherein a water seal is arranged inside the drain, the toilet seat cover comprises a seat cushion (102), a cover plate (103) and an air suction assembly, the air suction assembly comprises an exhaust machine (4), the exhaust machine (4) is provided with a main air suction pipe (5) connected to the inside of the tank (101), and an auxiliary exhaust pipe (6) connected to each drain, the air outlet (409) of the exhaust machine (4) is connected to the exhaust main pipe (3), each drain is provided with a water supply pipe (14) connected to a water tank (104), and the water supply pipe (14) is provided with a water supply pipe (14) connected to the water tank (104). A water replenishment valve (15) is provided, and a water inlet valve (16) for replenishing water to the water tank (104) and the water replenishment pipe (14) is provided in the water tank (104). A gas-sensitive detection head (106) is provided on the main air intake pipe (5) partially arranged in the pool body (101), a pressure sensor (107) is provided on the seat cushion (102), and an infrared sensor (108) is provided on the side of the cover plate (103) close to the seat cushion (102). The gas-sensitive detection head (106), the pressure sensor (107) and the infrared sensor (108) are all connected to the control panel circuit of the exhaust fan (4).

2. A toilet drainage deodorization system as claimed in claim 1, characterized in that: The main air intake pipe (5) comprises a connecting pipe (501), a plastic-coated corrugated air intake pipe (502), front and rear telescopic pipes (503) and upper and lower telescopic pipes (504); the plastic-coated corrugated air intake pipe (502) is U-shaped and closely attached to the side wall of the opening of the pool body (101); the gas-sensitive detection head (106) is arranged on the lower side of the plastic-coated corrugated air intake pipe (502); a plurality of air intake holes are arranged at intervals on the plastic-coated corrugated air intake pipe (502); the upper and lower telescopic pipes (504) are connected to the middle position of the plastic-coated corrugated air intake pipe (502); the connecting pipe (501) is arranged on one side of the rotation center of the seat cushion ring (102); and the upper ends of the upper and lower telescopic pipes (504) are provided with front and rear telescopic pipes (503) connected to the connecting pipe (501).

3. A toilet drainage deodorization system as claimed in claim 1, characterized in that: The exhaust fan (4) comprises a shell (401), a motor and a wind wheel (402) are arranged inside the shell (401), a first air inlet (403) cooperating with a main air intake pipe (5) is arranged on the shell (401), a second air inlet (404) cooperating with a secondary air exhaust pipe (6) is arranged on the shell (401), a check valve (405) is arranged at an air outlet (409) of the exhaust fan (4), an operation panel is arranged on the outside of the shell (401), and a manual switch (406), an automatic switch (407) and a buzzer (408) connected to a control panel circuit are arranged on the operation panel.

4. A toilet drainage deodorization system as claimed in claim 1, characterized in that: The drain comprises an above-ground drain (7), the above-ground drain (7) comprising a first upper shell (701) and a first lower shell (702), a downpipe (11) connected to a drainage branch pipe (10) is arranged in the first lower shell (702), the upper end of the downpipe (11) protrudes from the bottom of the first lower shell (702), a sealing cover (12) is buckled at the upper end of the downpipe (11), the downpipe (11), the first lower shell (702) and the sealing cover (12) together constitute an above-ground drain. The water seal structure of the water device (7) is provided, the drainage branch pipe (10) is connected to the drainage main pipe (2), a plurality of air holes (703) are provided on the circumferential side wall of the first upper shell (701), the first upper shell (701) is provided with a first water replenishment port (704) connected to the water replenishment pipe (14), the first upper shell (701) is provided with a first water inlet (705) connected to a washbasin or a washing machine, and the first upper shell (701) is provided with a first exhaust port (706) connected to the auxiliary exhaust pipe (6).

5. A toilet drainage deodorization system as claimed in claim 1, characterized in that: The drainer comprises a semi-buried drainer (8), the semi-buried drainer (8) comprising a second upper shell (801) and a second lower shell (802), the second lower shell (802) being provided with a downpipe (11) connected to a drainage branch pipe (10), the upper end of the downpipe (11) protruding from the bottom of the second lower shell (802), the upper end of the downpipe (11) being buckled with a sealing cover (12), the downpipe (11), the second lower shell (802) and the sealing cover (12) together forming a water seal structure of the semi-buried drainer (8), the drain The branch pipe (10) is connected to the main drainage pipe (2); a porous cover plate (13) is provided at the upper opening of the second lower shell (802); mutually matching magnets (803) are provided between the porous cover plate (13) and the second upper shell (801); a plurality of water flow ports (804) are provided on the circumferential side wall of the second upper shell (801); a second water replenishment port (805) connected to the water replenishment pipe (14) is provided on the second upper shell (801); and a second exhaust port (806) connected to the auxiliary exhaust pipe (6) is provided on the second upper shell (801).

6. A toilet drainage deodorization system as claimed in claim 1, characterized in that: The drainer comprises a fully buried drainer (9), the fully buried drainer (9) comprising a third lower shell (901), a downpipe (11) connected to a drainage branch pipe (10) is arranged inside the third lower shell (901), the upper end of the downpipe (11) protrudes from the bottom of the third lower shell (901), a sealing cover (12) is buckled on the upper end of the downpipe (11), the downpipe (11), the third lower shell (901) and the sealing cover (12) together constitute a water seal structure of the fully buried drainer (9), the drainage branch pipe (10) is connected to a drainage main pipe (2), a multi-hole cover plate (13) is arranged at the upper opening of the third lower shell (901), a third water replenishment port (902) connected to a water replenishment pipe (14) is arranged on the side wall of the third lower shell (901), and a third exhaust port (903) connected to an auxiliary exhaust pipe (6) is arranged on the side wall of the third lower shell (901).

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