Indoor kitchen and bath sewer line isolation and disinfection device

Abstract

The utility model provides an indoor kitchen and bath sewer line isolating and sterilizing device which comprises a current-layer drainage pipeline provided with a trap. The tail end of the drainage pipeline of the current layer is communicated with a common drainage vertical pipe; an isolating valve which is driven by a driving mechanism to open and close is rotationally arranged in front of the trap of the drainage pipeline of the layer; a sewage and wastewater sensor for sensing water is arranged behind the isolating valve; a disinfection device is arranged in the drainage pipeline of the layer; and the sewage and wastewater sensor, the driving mechanism and the disinfection device are electrically connected with a PLC (Programmable Logic Controller) control unit. According to the utility model, the driving mechanism is adopted to control the opening and closing of the isolating valve, the valve is opened without the impact force of water flow, and the isolating valve can be smoothly opened in a horizontal pipeline or other pipelines with small impact force of the water flow.

Description

Technical Field

[0001] This utility model belongs to the field of building drainage systems, specifically relating to an isolation and disinfection device for indoor kitchen and bathroom drainage pipes. Background Technology

[0002] In high-rise buildings, the main drainage pipe is a shared drainage riser for all floors, connecting the drainage pipes of each floor. Viruses, bacteria, and other harmful gases can potentially enter other floors through the main drainage pipe, causing cross-contamination between floors. Although toilets, sinks, floor drains, and other drain pipes are equipped with water traps, and some sanitary ware also has water seals, these water seals and water traps are used to prevent air communication between the pipes on the same floor and the main drainage pipe. However, these can dry out. When the water trap dries out, when sanitary ware is being repaired, or when the pipe is draining, the pipes on the same floor may become air communication with the main drainage pipe. Harmful gases from the main drainage pipe can then enter the room through the pipes on the same floor, contaminating the indoor air with viruses and bacteria and infecting the occupants.

[0003] Patent CN1306125C discloses a scientifically designed sewage pipe for prevention. The valve in this patent opens with the force of water flow and falls back down by its own weight when there is no sewage. First, the valve in this patent is located at the lowest point of a downward-sloping pipe, resulting in a relatively large water flow impact. However, indoor drainage pipes are generally horizontal or nearly horizontal, with a V-shaped or U-shaped trap near the drain riser. Water flows into the V-shaped trap, fills it, and then flows horizontally. The valve is located on the horizontal section of the drainage pipe. Without the support of gravity, the water flow impact is not strong enough to open the valve, or the valve may open too slightly, causing drainage blockage. Second, in prior art document 1, only the inside of the valve is disinfected, not the outside. When the valve is located in a horizontal pipe, sewage may be exchanged during the opening process. Even if the valve is located at the lower end of an inclined pipe, cross-contamination of sewage or airflow can still occur during the opening process.

[0004] Patent CN219354751U provides an indoor drainage pipe disinfection device: the disinfection pipe is vertically arranged, and the one-way valve automatically closes via a torsion spring shaft and opens downwards using the gravity of the water flow. This method is ineffective for valves installed on horizontal or non-vertical pipes. Furthermore, while the valve can be opened using the force of the water flow on vertical pipes, the disinfection spraying effect is poor. There is a need for a drainage pipe isolation disinfection device that allows the valve opening and closing to be unaffected by the impact of water flow and the angle of pipe installation, while also providing better disinfection results. Summary of the Invention

[0005] This utility model provides an indoor kitchen and bathroom drain pipe isolation and disinfection device.

[0006] The purpose of this utility model is achieved in the following manner: an indoor kitchen and bathroom drain pipe isolation and disinfection device, including a floor drain pipe with a water trap; the end of the floor drain pipe is connected to a common drain riser; an isolation valve that is rotatably installed in front of the water trap of the floor drain pipe and is driven by a driving mechanism to open and close; a wastewater sensor that senses water is installed behind the isolation valve; a disinfection device is installed inside the floor drain pipe; the wastewater sensor, the driving mechanism, and the disinfection device are electrically connected to a PLC control unit.

[0007] The driving mechanism includes a linear telescopic mechanism located outside the drainage pipe of this floor. The telescopic end of the linear telescopic mechanism passes through the upper end of the drainage pipe of this floor and is slidably connected to one side of the isolation valve. The upper end of the isolation valve is hinged to the upper end of the inner wall of the drainage pipe of this floor.

[0008] The isolation valve is located at the front end of the water trap and is perpendicular or nearly perpendicular to the front axis when the isolation valve is closed; the wastewater sensor is located on the inner wall of the water trap, at an upper position on the side away from the isolation valve, and the upper end of the wastewater sensor is located outside the water trap and is electrically connected to the PLC control unit.

[0009] The disinfection device includes a front spray head located in front of the isolation valve and a rear spray head located in the water trap behind the isolation valve; the front spray head and the rear spray head are connected to a disinfection pump through pipes, and the disinfection pump is electrically connected to a PLC control unit.

[0010] A limiting ring is provided on the inner wall of the drainage pipe on this floor behind the isolation valve and near the closed isolation valve; the linear telescopic mechanism is provided in front of the isolation valve.

[0011] An outward-facing support pipe is fixedly installed on the upper end of the outer wall of the drainage pipe on this floor; the support pipe is connected to the drainage pipe on this floor; the linear telescopic mechanism is fixedly installed on the upper end of the support pipe.

[0012] A sliding ring with the same length direction as the isolation valve is provided in the middle of the front side of the isolation valve. The telescopic end of the linear drive mechanism is fitted inside the sliding ring and moves along the sliding ring.

[0013] Compared to existing technologies, this invention uses a drive mechanism to control the opening and closing of the isolation valve, which is not easily opened by the impact force of water flow. The isolation valve can also be opened smoothly in horizontal pipes or other pipes where the water flow impact force is not high. This invention employs physical isolation measures to block the spread of viruses and bacteria between floors through the sewer system. Simultaneously, disinfection is performed the instant the drainage pipe on this floor connects to the main pipe, completely preventing cross-infection between floors caused by viruses and bacteria through the sewer system, thus having a wide-ranging social impact. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structural principle of this utility model.

[0015] Figure 2 This is a diagram illustrating the disinfection process.

[0016] Figure 3 This is a diagram illustrating the disinfection and drainage status.

[0017] Figure 4 This is an enlarged view of the isolation valve section.

[0018] Among them, 1 is the drain pipe for water appliances, 2 is the drain pipe for floor drains, 3 is the drainage pipe for this floor, 4 is the common drainage riser, 5 is the water trap, 6 is the PLC control unit, 7 is the wastewater sensor, 8 is the disinfection pump, 9 is the front nozzle, 10 is the rear nozzle, 11 is the isolation valve, and 12 is the linear telescopic mechanism. Detailed Implementation

[0019] In this utility model, unless otherwise expressly specified and limited, the technical terms used in this application shall have the ordinary meaning understood by those skilled in the art. Terms such as "connected," "linked," "fixed," and "set" shall be interpreted broadly, referring to fixed connections, detachable connections, or integral connections; direct connections or indirect connections via an intermediate medium; mechanical connections or electrical connections. Unless otherwise expressly specified and limited, "above" or "below" a second feature may mean that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," or "over" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "under" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Relational terms such as "first," "second," etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as “center,” “lateral,” “longitudinal,” “length,” “width,” “thickness,” “height,” “front,” “rear,” “left,” “right,” “up,” “down,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” “circumferential,” “clockwise,” and “counterclockwise,” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Figure 1-4 As shown, an indoor kitchen and bathroom drainage pipe isolation and disinfection device includes a floor drain pipe 3 with a water trap 5; the end of the floor drain pipe 3 is connected to a common drainage riser 4. An isolation valve 11, driven by a driving mechanism, is rotatably installed in front of the water trap 5 of the floor drain pipe 3; a wastewater sensor 7 is installed behind the isolation valve 11; a disinfection device is installed inside the floor drain pipe 3; the wastewater sensor 7, the driving mechanism, and the disinfection device are electrically connected to a PLC control unit 6. Here, the wastewater sensor 7 is not a water quality sensor, but a water sensor that can detect the passage of water, such as a level sensor. In this text, the direction of water flow is considered forward, and the common drainage riser 4 is located in front of the isolation valve 11. The water trap can be an existing structure, such as a U-shape or V-shape, and is installed on the floor drain pipe 3 as part of the floor drain pipe 3. The disinfection device can use existing common sewer disinfection mechanisms, and can be installed only in front of the isolation valve 11, only behind it, or both. The PLC control unit 6 can be installed indoors, above the floor, with wiring passing through the floor and connecting to various structures on the drainage pipe 3 of this floor. The drive mechanism can be an existing common structure that can drive the valve to rotate. For example, the drive mechanism can be a motor installed on the outer wall of the drainage pipe 3 of this floor, driving the rotating shaft of the isolation valve 11 to rotate; the drive mechanism can be a linear drive mechanism, driving the isolation valve 11 to rotate through a linkage mechanism, etc. The isolation valve 11 can be hinged at one end to the inner wall of the drainage pipe 3 of this floor, rotating around the junction point. It can also include a structure with two sections rotating on the inner wall of the drainage pipe 3 of this floor, rotating and opening and closing around the rotating shaft. As long as it can achieve the isolation and discharge of sewage and wastewater, it is acceptable. In this utility model, the drive mechanism is used to control the opening and closing of the isolation valve 11, which is not conducive to opening the valve with the impact force of water flow. The isolation valve 11 can also be opened smoothly in horizontal pipes or other pipes where the water flow impact force is not large. The PLC control unit 6 detects the water flow signal from the wastewater sensor 7, which then drives the disinfection device to disinfect the wastewater and actively opens the isolation valve to drain it. This invention employs physical isolation measures to block the spread of viruses and bacteria between floors through the sewer pipes. Simultaneously, disinfection occurs instantly when the drainage pipe 3 on this floor connects to the shared drainage riser 4, completely preventing cross-infection between floors caused by viruses and bacteria through the sewer pipes, thus having a wide-ranging social impact.

[0021] Specifically, the driving mechanism includes a linear telescopic mechanism 12 located outside the drainage pipe 3 of this floor. The telescopic end of the linear telescopic mechanism 12 passes through the upper end of the drainage pipe 3 of this floor and is slidably connected to one side of the isolation valve 11. The upper end of the isolation valve 11 is hinged to the upper end of the inner wall of the drainage pipe 3 of this floor. The linear telescopic mechanism 12 can be a driving element such as a driving pump, cylinder, or electric push rod to achieve linear telescopic movement. The shape of the isolation valve corresponds to the shape of the drainage pipe 3 of this floor to achieve isolation and opening / closing. The position where the telescopic end of the linear telescopic mechanism 12 passes through the drainage pipe 3 of this floor is preferably at the top or near the top of the drainage pipe 3 of this floor to prevent sewage from flowing out of the hole. The linear telescopic mechanism 12 is preferably located on the front side of the isolation valve 11, that is, on the side close to the common drainage riser 4, and the telescopic end of the linear telescopic mechanism 12 is slidably connected to the side of the isolation valve 11 close to the common drainage riser 4. Of course, the linear telescopic mechanism 12 can also be located on the rear side of the isolation valve 11, and the telescopic end is slidably connected to the rear side of the isolation valve 11. The linear telescopic mechanism 12 can be directly slidably connected to the isolation valve 11, or it can be connected through other linkage mechanisms, as long as the isolation valve 11 can be rotated to open and close.

[0022] Furthermore, the isolation valve 11 is located at the front end of the water trap 5, and in the closed state, it is perpendicular or nearly perpendicular to the front axis. The wastewater sensor 7 is located on the inner wall of the water trap 5, at an upper position away from the isolation valve 11. The upper end of the wastewater sensor 7 is located outside the water trap 5 and is electrically connected to the PLC control unit 6. The front end of the water trap 5 is located at or near the junction of the water trap 5 and the horizontal or other angled drainage pipe 3 of the same floor shown in the attached figure. At this time, the isolation valve, in the closed state, has a certain angle with the vertical direction, such as 30 degrees. Of course, the isolation valve can also be located on the front drainage pipe 3 of the same floor. When the drainage pipe 3 of the same floor is horizontal, the isolation valve 11 is vertically set. The height of the wastewater sensor 7 inside the water trap 5 is determined as needed and can be selected from various options.

[0023] Furthermore, the disinfection device includes a front spray head 9 positioned in front of the isolation valve 11 and a rear spray head 10 positioned within a water trap 5 behind the isolation valve 11. The front spray head 9 and the rear spray head 10 are connected to a disinfection pump 8 via pipes, and the disinfection pump 8 is electrically connected to a PLC control unit 6. The disinfection pump 8 can be connected to a structure such as a disinfection tank for storing disinfectant. Preferably, the position of the front spray head 9 does not affect the opening of the isolation valve 11. Preferably, the rear spray head 10 is positioned on the side of the water trap 5 away from the isolation valve 11, located in front of and below the wastewater sensor 7. In this invention, disinfection spray heads are provided on both sides of the isolation valve 11, which, compared to a single-sided disinfection spray head structure, can effectively prevent cross-contamination of liquids and gases after the isolation valve 11 is opened. The installation method of the spray heads is prior art and will not be described in detail.

[0024] Furthermore, a limiting ring is provided on the inner wall of the drainage pipe 3 on this floor behind the isolation valve 11 and near the closed isolation valve 11; the linear telescopic mechanism 12 is provided in front of the isolation valve 11. The limiting ring can restrict the position of the isolation valve 11 in the closed state, ensure the stability of the closed state, and prevent or reduce sewage from flowing out from the gap between the pipe and the isolation valve 11.

[0025] Specifically, an outward-facing support pipe is fixedly installed on the upper end of the outer wall of the drainage pipe 3 on this floor; the support pipe is connected to the drainage pipe 3 on this floor; and the linear telescopic mechanism 12 is fixedly installed on the upper end of the support pipe. In this structure, the linear telescopic mechanism can be a certain distance away from the highest point of the drainage pipe 3 on this floor, further avoiding sewage pollution, and also allowing for better adjustment of the installation space of the linear telescopic mechanism 12.

[0026] Specifically, a sliding ring with its length direction aligned with the length direction of the isolation valve is provided at the middle of the front side of the isolation valve 11. The telescopic end of the linear drive mechanism is fitted inside the sliding ring and moves along the sliding ring. Alternatively, other existing structures that achieve the same function may also be used.

[0027] In practice: Wastewater from the kitchen or bathroom water appliance drain pipe 1 and floor drain pipe 2 is discharged into the common drainage riser 4 through the local drainage pipe 3. The disinfection device is installed on the local drainage pipe 3. The PLC control unit 6 controls the opening and closing of the isolation valve 11 and the disinfection action. When the PLC control unit 6 detects the wastewater discharge signal through the wastewater sensor 7, it first starts the disinfection pump 8. The disinfectant is sprayed into the pipes on both sides of the isolation valve 11 through the front nozzle 9 and the rear nozzle 10, respectively. This prevents viruses and bacteria in the gas in the common drainage riser 4 from entering the local drainage pipe, and also prevents viruses and bacteria in the gas in the local floor from entering the common drainage riser 4. While the disinfection pump 8 is in disinfection operation, the PLC control unit 6 activates the linear telescopic mechanism 12 to open the isolation valve 11, and the wastewater from the local floor is discharged into the common drainage riser 4.

[0028] Once the wastewater from this floor has been discharged, the wastewater sensor 7 transmits a signal to the PLC control unit 6. The PLC control unit 6 releases the linear telescopic mechanism 12, and the isolation valve 11 immediately closes. The disinfection pump 8 stops working after a short delay, exiting the disinfection working state and entering standby mode. The isolation valve 11 is normally closed to prevent harmful gases containing viruses and bacteria from entering the pipes of this floor from the shared drainage riser 4. A maintenance drain valve 13 is installed at the lowest position of the trap 5 for device maintenance and removal of sediment from the device.

[0029] This invention can effectively block the spread of viruses and bacteria through sewer pipes. It has a wide range of applications and is simple and convenient. At the same time, the sewage and wastewater on this floor are disinfected before being discharged into the main pipe, which completely eliminates the cross-infection of viruses and bacteria on different floors and has significant economic and social benefits.

[0030] The technical features of the embodiments described above can be combined in any way, and as long as there is no contradiction in the combination of these technical features, they should all be considered within the scope of this specification. Without departing from the overall concept of this utility model, any equivalent substitutions or modifications made to the technical solution of this utility model, as well as any changes and improvements, should also be considered within the protection scope of this utility model.

Claims

1. An indoor kitchen and bathroom drainage pipe isolation and disinfection device, comprising a floor drain pipe (3) with a water trap (5); the end of the floor drain pipe (3) is connected to a common drainage riser (4); characterized in that: An isolation valve (11) is rotatably installed in front of the water trap (5) of the drainage pipe (3) on this floor, which is driven by a drive mechanism to open and close; a wastewater sensor (7) for sensing water is installed behind the isolation valve (11); a disinfection device is installed inside the drainage pipe (3) on this floor; the wastewater sensor (7), the drive mechanism, and the disinfection device are electrically connected to the PLC control unit (6).

2. The indoor kitchen and bathroom drain pipe isolation and disinfection device according to claim 1, characterized in that: The driving mechanism includes a linear telescopic mechanism (12) located outside the drainage pipe (3) of this floor. The telescopic end of the linear telescopic mechanism (12) passes through the upper end of the drainage pipe (3) of this floor and is slidably connected to one side of the isolation valve (11). The upper end of the isolation valve (11) is hinged to the upper end of the inner wall of the drainage pipe (3) of this floor.

3. The indoor kitchen and bathroom drain pipe isolation and disinfection device according to claim 1, characterized in that: The isolation valve (11) is located at the front end of the water trap (5), and the isolation valve (11) is perpendicular or nearly perpendicular to the front axis when closed; the wastewater sensor (7) is located on the inner wall of the water trap (5), at an upper position on the side away from the isolation valve (11), and the upper end of the wastewater sensor (7) is located outside the water trap (5) and is electrically connected to the PLC control unit (6) by wiring.

4. The indoor kitchen and bathroom drain pipe isolation and disinfection device according to claim 1, characterized in that: The disinfection device includes a front nozzle (9) located in front of the isolation valve (11) and a rear nozzle (10) located in the water trap (5) behind the isolation valve (11); the front nozzle (9) and the rear nozzle (10) are connected to a disinfection pump (8) through a pipeline, and the disinfection pump (8) is electrically connected to a PLC control unit (6).

5. The indoor kitchen and bathroom drain pipe isolation and disinfection device according to claim 2, characterized in that: A limiting ring is provided on the inner wall of the drainage pipe (3) of this floor behind the isolation valve (11) and close to the closed isolation valve (11); the linear telescopic mechanism (12) is provided in front of the isolation valve (11).

6. The indoor kitchen and bathroom drain pipe isolation and disinfection device according to claim 2, characterized in that: The upper part of the outer wall of the drainage pipe (3) of this floor is fixedly provided with an outward support pipe; the support pipe is connected to the drainage pipe (3) of this floor; the linear telescopic mechanism (12) is fixedly provided at the upper end of the support pipe.

7. The indoor kitchen and bathroom drain pipe isolation and disinfection device according to claim 2, characterized in that: A sliding ring with the same length direction as the isolation valve (11) is provided in the middle of the front side. The telescopic end of the linear telescopic mechanism (12) is fitted inside the sliding ring and moves along the sliding ring.

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