Public toilet wastewater treatment device

Abstract

The utility model discloses a public toilet wastewater treatment device which comprises a programmable controller, a water purifier, a water storage tank and an infrared induction switch, the water storage tank is communicated with a sewer line of a hand washing sink through the water purifier, a water outlet of the water storage tank is communicated with a flushing pipe, an electromagnetic valve is installed on the flushing pipe, and the infrared induction switch is connected with the programmable controller. The infrared induction switch is arranged on the toilet stool corresponding to the flushing pipe; the water outlet end of the hand washing sink sewer pipeline is communicated with a first drainage pipe and a second drainage pipe through a first electric three-way valve, and the first drainage pipe is communicated with a municipal sewage pipeline; when the toilet bowl is used, the water storage tank can store washing waste water generated at the hand washing sink, and when the infrared induction switch monitors that a user leaves the toilet bowl, the programmable controller controls the electromagnetic valve to be opened, so that the waste water in the water storage tank is discharged through the flushing pipe, the toilet bowl is flushed, secondary utilization of the washing waste water is achieved, and the toilet bowl is convenient to use. Water resources are effectively saved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to a wastewater treatment device, in particular to a public toilet wastewater treatment device. Background Art

[0002] Public toilets refer to toilets used by urban residents and migrant populations, including toilets attached to public buildings (such as stations, hospitals, cinemas, exhibition halls, office buildings, etc.).

[0003] At present, public toilets are basically equipped with washbasins for users to wash, but in the vast majority of public toilets, the wastewater generated at the washbasins is directly discharged into the municipal sewage pipes and is not fully utilized, resulting in a large amount of water resource waste, which needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a public toilet wastewater treatment device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A public toilet wastewater treatment device comprises a programmable controller, a water purifier, a water tank and an infrared sensing switch, wherein the water tank is connected to a water pipe of a wash basin through the water purifier, a water outlet of the water tank is connected to a flushing pipe, a solenoid valve is installed on the flushing pipe, and the infrared sensing switch is installed on a toilet bowl corresponding to the flushing pipe.

[0007] As a further solution of the utility model: the water outlet end of the washbasin sewer pipe is connected to the first drain pipe and the second drain pipe through a first electric three-way valve, the first drain pipe is connected to the municipal sewage pipe, the second drain pipe is connected to a cache box, the water outlet of the cache box is connected to the water inlet of the water storage tank through a water supply pipe, the water purifier is installed on the water supply pipe, and a water pump is installed on the water supply pipe at the water outlet side of the water purifier.

[0008] As a further solution of the utility model: a pipeline filter is installed on the water pipe of the wash basin.

[0009] As a further solution of the utility model: the water outlet of the water storage tank is connected to the first water supply pipe, and the water inlet end of the flushing pipe is connected to the water outlet ends of the first water supply pipe and the municipal water supply pipe through a second electric three-way valve.

[0010] As a further solution of the utility model: a booster pump and a one-way valve are sequentially installed on the first water supply pipe along the water flow direction thereof.

[0011] As a further solution of the utility model: a first liquid level sensor is installed on the cache box, and a second liquid level sensor is installed on the water storage tank.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is in use, the water storage tank can store the washing waste water generated in the wash basin. When the infrared sensing switch detects that the user has left the toilet, the programmable controller controls the solenoid valve to open, so as to discharge the waste water in the water storage tank through the flushing pipe, thereby flushing the toilet to achieve the secondary utilization of the washing waste water, effectively save water resources, and have a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the structure of a public toilet wastewater treatment device.

[0015] Among them, the wash basin sewer pipe 1, the pipe filter 2, the first electric three-way valve 3, the first drain pipe 4, the second drain pipe 5, the cache box 6, the first liquid level sensor 7, the water supply pipe 8, the water purifier 9, the water pump 10, the water storage tank 11, the second liquid level sensor 12, the first water supply pipe 13, the booster pump 14, the one-way valve 15, the second electric three-way valve 16, the municipal water supply pipe 17, the flushing pipe 18, the solenoid valve 19, the infrared sensor switch 20, and the programmable controller 21. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail in conjunction with the embodiments below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0018] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation in the specification, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0020] See also Figure 1 In an embodiment of the utility model, a public toilet wastewater treatment device includes a programmable controller 21, a water purifier 9, a water tank 11 and an infrared sensor switch 20. The water tank 11 is connected to the sink drain pipe 1 through the water purifier 9. The water outlet of the water tank 11 is connected to the flushing pipe 18. A solenoid valve 19 is installed on the flushing pipe 18. The infrared sensor switch 20 is installed on the toilet corresponding to the flushing pipe 18. The toilet can be a urinal, a squat toilet or a toilet.

[0021] The utility model adopts the above scheme. When in use, the waste water generated by the user washing at the wash basin will flow into the wash basin sewer pipe 1, and then the waste water will be purified by the water purifier 9 and discharged into the water storage tank 11 for storage. The infrared sensing switch 20 can monitor whether someone is approaching the toilet and send an electrical signal to the programmable controller 21. When it senses that someone is approaching and staying for more than a set time, the programmable controller 21 determines that the toilet corresponding to the infrared sensing switch 20 is being used. When the infrared sensing switch 20 detects that the user has left, the programmable controller 21 controls the solenoid valve 19 to open, so as to discharge the waste water in the water storage tank 11 through the flush pipe 18, thereby flushing the toilet to achieve secondary utilization of washing waste water, effectively save water resources, and have a good use effect.

[0022] Specific combination Figure 1 In one embodiment of the utility model, the water outlet end of the wash basin sewer pipe 1 is connected to the first drain pipe 4 and the second drain pipe 5 through the first electric three-way valve 3, the first drain pipe 4 is connected to the municipal sewage pipe, the second drain pipe 5 is connected to the cache box 6, the water outlet of the cache box 6 is connected to the water inlet of the water storage tank 11 through the water supply pipe 8, the water purifier 9 is installed on the water supply pipe 8, and a water pump 10 is installed on the water supply pipe 8 at the water outlet side of the water purifier 9, the water purifier 9 can be installed with an inlet filter element, and the inlet filter element can adopt one or a combination of PP cotton filter element, activated carbon filter element, and ultrafiltration membrane filter element.

[0023] By adopting the above scheme, when a large number of people continuously use the wash basin, resulting in the discharge of wastewater in a short period of time exceeding the processing efficiency of the water purifier 9, the buffer box 6 can buffer the washing waste water. When the liquid level in the buffer box 6 exceeds the preset value, the wash basin sewer pipe 1 can be connected to the first drain pipe 4 by switching the state of the first electric three-way valve 3 to discharge the subsequent washing waste water into the municipal sewage pipe, thereby effectively avoiding unnecessary discharge of washing waste water and further achieving a water-saving effect.

[0024] Specific combination Figure 1 In one embodiment of the utility model, a pipe filter 2 is installed on the wash basin sewer pipe 1. Through the setting of the pipe filter 2, the washing waste water can be primarily filtered in the wash basin sewer pipe 1 to effectively intercept hair, cigarette butts or other larger debris in the waste water, thereby preventing the first electric three-way valve 3 or the water purifier 9 from being blocked by large debris.

[0025] Specific combination Figure 1 In one embodiment of the utility model, the water outlet of the water storage tank 11 is connected to the first water supply pipe 13, and the water inlet end of the flushing pipe 18 is connected to the water outlet ends of the first water supply pipe 13 and the municipal water supply pipe 17 through the second electric three-way valve 16.

[0026] By adopting the above scheme, when the amount of waste water stored in the water tank 11 is insufficient, the second electric three-way valve 16 can be adjusted to connect the flushing pipe 18 with the municipal water supply pipe 17 to ensure normal flushing of the toilet. When the amount of water in the water tank 11 is sufficient, after the user uses the toilet, the flushing pipe 18 can be connected to the first water supply pipe 13 to use the waste water in the water tank 11 to perform an initial flushing of the toilet for 3-5 seconds, and then the flushing pipe 18 can be connected to the municipal water supply pipe 17 to use tap water to perform a secondary flushing of the toilet for 1-3 seconds, thereby ensuring the cleaning effect of the toilet and reducing the use of tap water.

[0027] Specific combination Figure 1 On the basis of the previous embodiment, a booster pump 14 and a one-way valve 15 are sequentially installed on the first water supply pipe 13 along the water flow direction thereof. By setting the booster pump 14, the outlet water pressure of the first water supply pipe 13 can be increased to ensure the flushing effect of the toilet. By setting the one-way valve 15, it can be prevented that the tap water in the municipal water supply pipe 17 is not connected to the first water supply pipe 13 when the second electric three-way valve 16 switches the connection state.

[0028] Specific combination Figure 1In one embodiment of the utility model, a first liquid level sensor 7 is installed on the cache box 6 to facilitate monitoring of the water level in the cache box 6, and a second liquid level sensor 12 is installed on the water storage tank 11 to facilitate monitoring of the water level in the water storage tank 11.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A public toilet wastewater treatment device, characterized in that: The utility model comprises a programmable controller (21), a water purifier (9), a water storage tank (11) and an infrared induction switch (20); the water storage tank (11) is connected to a water pipe (1) of a wash basin through the water purifier (9); the water outlet of the water storage tank (11) is connected to a flushing pipe (18); a solenoid valve (19) is installed on the flushing pipe (18); and the infrared induction switch (20) is installed on a toilet bowl corresponding to the flushing pipe (18).

2. A public toilet wastewater treatment device according to claim 1, characterized in that: The water outlet end of the wash basin sewer pipe (1) is connected to a first drain pipe (4) and a second drain pipe (5) via a first electric three-way valve (3); the first drain pipe (4) is connected to a municipal sewage pipe; the second drain pipe (5) is connected to a cache box (6); the water outlet of the cache box (6) is connected to a water inlet of a water storage tank (11) via a water supply pipe (8); the water purifier (9) is mounted on the water supply pipe (8), and a water pump (10) is mounted on the water supply pipe (8) at the water outlet side of the water purifier (9).

3. A public toilet wastewater treatment device according to claim 1, characterized in that: A pipeline filter (2) is installed on the wash basin water pipe (1).

4. A public toilet wastewater treatment device according to claim 1, characterized in that: The water outlet of the water storage tank (11) is connected to a first water supply pipe (13), and the water inlet end of the flushing pipe (18) is connected to the water outlet ends of the first water supply pipe (13) and the municipal water supply pipe (17) via a second electric three-way valve (16).

5. A public toilet wastewater treatment device according to claim 4, characterized in that: A booster pump (14) and a one-way valve (15) are sequentially installed on the first water supply pipe (13) along the water flow direction thereof.

6. A public toilet wastewater treatment device according to claim 2, characterized in that: The cache box (6) is installed with a first liquid level sensor (7), and the water storage tank (11) is installed with a second liquid level sensor (12).

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