Building drainage structure

Abstract

The application relates to the technical field of building drainage, and provides a building drainage structure, which comprises a water collecting channel pipe arranged at the bottom of a house eave, a drainage pipe arranged at the side wall of the house and connected with one end of the water collecting channel pipe, a water collecting tank arranged at one side of the drainage pipe, and a connecting pipe arranged at the drainage pipe to input rainwater into the water collecting tank, the water collecting channel pipe is formed with a water collecting groove along the length direction of the water collecting channel pipe, the drainage pipe is provided with a first drainage opening and a second drainage opening, and the connecting pipe is connected with the first drainage opening; a medicine applying mechanism for disinfecting the collected rainwater in the water collecting tank is arranged in the water collecting tank, the medicine applying mechanism comprises a reagent box with a liquid outlet and a first control assembly arranged in the reagent box to control the opening and closing of the liquid outlet, the reagent box is internally provided with a disinfectant, and the reagent box is arranged below the connecting pipe. The application has the beneficial effect of reducing the frequency of adding disinfectant into the water collecting tank.

Description

Technical Field

[0001] This application relates to the technical field of building drainage, and in particular to a building drainage structure. Background Technology

[0002] Drainage structure refers to the overall system composed of facilities for the collection, transportation, treatment, and discharge of drainage in a certain way. Building drainage structure is an important structure in buildings, which can quickly drain rainwater from the roof during the rainy season and prevent the building from leaking.

[0003] With the increase in urban water consumption, water resources are being consumed more and more. In order to save energy, existing facilities have water collection tanks connected to drainage pipes to collect excess rainwater and convert it into usable water resources.

[0004] Because rainwater contains a large number of impurities, current rainwater filtration technologies typically involve installing filter screens inside drain pipes to remove larger solid impurities. Afterward, disinfectant is manually added to the collection tank regularly for disinfection and sterilization, purifying the rainwater to a certain extent so that it can be used for domestic water, saving energy. However, since rainfall occurs mostly in summer and is more frequent, the frequency of disinfectant addition also increases with the number of rainfalls, making manual disinfection cumbersome. Therefore, further improvements are needed. Summary of the Invention

[0005] In order to reduce the frequency of adding disinfectant to the water collection tank and to promptly add disinfectant to the rainwater in the water collection tank, this application provides a building drainage structure.

[0006] This application provides a building drainage structure, which adopts the following technical solution:

[0007] A building drainage structure includes a water collection channel pipe installed at the bottom of the eaves of a building, a drain pipe installed on the side wall of the building and connected to one end of the water collection channel pipe, a water collection tank installed on one side of the drain pipe, and a connecting pipe installed on the drain pipe to input rainwater into the water collection tank. The water collection channel pipe forms a water collection trough along its length. The drain pipe has a first drain outlet and a second drain outlet. The connecting pipe is connected to the first drain outlet. The water collection tank is equipped with a disinfection device for disinfecting the rainwater collected in the water collection tank. The disinfection device includes a reagent kit with a liquid outlet and a reagent... The kit includes a first control component for controlling the opening and closing of the liquid outlet. The kit contains disinfectant and is positioned below a connecting tube. The connecting tube is fixedly inserted through the kit along its height, and the liquid outlet is located on the inner circumferential wall of the connecting tube. The first control component includes a control rod that slides through the connecting tube, a pressing block located at the upper end of the control rod, and a first elastic element that forces the pressing block to move away from the kit. The pressing block is located below the connecting tube. A through groove is formed on the lower end face of the control rod, and a first connecting hole is formed through the inner wall of the through groove.

[0008] By adopting the above technical solution, when it rains, rainwater falls into the collection trough and enters the collection tank through the drain pipe and connecting pipe. When the rainwater enters the collection tank, it has a certain impact force, which first applies pressure to the pressing block, thereby driving the control rod to slide down and move the first connecting hole closer to the liquid outlet. When the first connecting hole and the liquid outlet are connected, the disinfectant in the reagent kit enters the channel through the liquid outlet and the first connecting hole, and drips into the collection tank with the channel, mixing with the rainwater in the collection tank, thereby disinfecting the rainwater.

[0009] When rainfall continues to increase the amount of rainwater in the collection tank, and the rainwater in the collection tank is flush with the connecting pipe, the impact force of the rainwater on the pressing block is reduced. When the impact force is less than the elastic force of the first elastic element on the pressing block, and when there is no rainfall, the pressing block will be restored by the elastic force of the first elastic element, causing the first connecting hole and the liquid outlet on the control rod to be misaligned. This prevents the disinfectant in the kit from dripping into the collection tank, allowing the unused disinfectant in the kit to be stored for future use. This reduces the frequency of manually adding disinfectant to the collection tank, making it more convenient to use. Furthermore, the disinfection of rainwater is achieved by pressurizing the pressing block after rainfall flows into the connecting pipe, allowing disinfectant to be added to the collection tank in a timely manner for subsequent use.

[0010] Preferably, the first control component further includes a first control float plate disposed at the lower end of the control rod, and the control rod is provided with a second connecting hole below the first connecting hole.

[0011] By adopting the above technical solution, when the rainfall is heavy, the water flow in the drain pipe is large, and the pressure on the pressing block is also large. At this time, the pressure on the pressing block may only decrease after the rainwater in the collection tank and the connecting pipe are connected, at which point the outlet closes. However, during this period, as the rainwater in the collection tank increases, and when the rainwater volume exceeds the outlet set on the reagent kit, rainwater may enter the reagent kit through the first connecting hole and the outlet, mixing with the disinfectant and diluting it, thus affecting the disinfection effect on the next batch of collected rainwater. Furthermore, during the dilution of the disinfectant, the water flow into the collection tank results in a larger amount of disinfectant being added, thus affecting the frequency at which the reagent kit can be added to the collection tank.

[0012] Therefore, by setting a first control float, when the rainwater reaches the same level as the lower surface of the first control float, as the rainwater increases, the first control float gradually rises due to its own characteristics, so as to lift the control rod, thereby causing the liquid outlet and the first connecting hole to be misaligned, so as to reduce the possibility of external rainwater entering the reagent kit through the first connecting hole and the liquid outlet and mixing with the disinfectant, thereby reducing the possibility of the disinfectant in the reagent kit being diluted, and controlling the amount of disinfectant added to the water collection tank.

[0013] Preferably, a sealing gasket is provided on the surface of the first control float near the control rod.

[0014] By adopting the above technical solution, in order to reduce the possibility of external rainwater entering the reagent kit through the gap between the first control float and the reagent kit, a sealing gasket is provided on the surface of the first control float near the control rod to increase the filling of the gap between the first control float and the reagent kit, thereby reducing the possibility of rainwater entering the reagent kit, improving the concentration of disinfectant in the reagent kit and reducing the generation of excess disinfectant in the water collection tank.

[0015] Preferably, the drain pipe includes a straight pipe connected to the water collection channel pipe and a first drain pipe and a second drain pipe symmetrically arranged along the axis of the straight pipe. The lower ends of the first drain pipe and the second drain pipe are both inclined in a direction away from the straight pipe. The first drain outlet is located on the first drain pipe, and the second drain pipe is located on the second drain outlet.

[0016] By adopting the above technical solution, a straight pipe and two drainage pipes symmetrically arranged along the axis of the straight pipe are used to form an inverted Y-shaped tee. This allows rainwater in the collection channel to pass through the straight pipe and then enter the first and second drainage pipes respectively for drainage and collection, reducing the need for excess rainwater discharge. Furthermore, since the lower ends of both the first and second drainage pipes are inclined away from the straight pipe, the time rainwater remains in the first and second drainage pipes is reduced, thus affecting rainwater discharge and collection.

[0017] Preferably, the connecting pipe is provided with an opening and closing mechanism at one end near the water collection tank. The opening and closing mechanism includes a first valve plate disposed in the connecting pipe, a second valve plate rotatably connected to the first valve plate, and a second control component for controlling the rotation of the second valve plate. The first valve plate and the second valve plate are each provided with a plurality of fan-shaped drain outlets. The plurality of fan-shaped drain outlets are arranged circumferentially along the corresponding first valve plate or second valve plate, and the arc of the interval between two adjacent fan-shaped drain outlets is greater than the arc of the fan-shaped drain outlet.

[0018] By adopting the above technical solution, when the fan-shaped drain outlet of the second valve plate rotates to coincide with the fan-shaped drain outlet on the first valve plate under the action of the second control component, the outlet end of the connecting pipe is in the open state, so that rainwater enters the water collection tank for collection through the drain pipe and the connecting pipe; when the fan-shaped drain outlet of the second valve plate rotates to be misaligned with the fan-shaped drain outlet of the first valve plate under the action of the second control component, the outlet end of the connecting pipe is in the closed state; the arc of the interval between two adjacent fan-shaped drain outlets is greater than the arc of the fan-shaped drain outlet, so that when the fan-shaped drain outlets on the first valve plate and the second valve plate are misaligned, the drainage inlet can be completely closed.

[0019] Furthermore, since the water level in the collection tank is not easily changed when the rainwater collected is level with the inlet of the second drain pipe, and if it is still raining, the rainwater flowing down from the straight pipe may connect with the water in the second drain pipe, which may affect the concentration of disinfectant applied in the collection tank and potentially cause secondary pollution to the collected rainwater. Therefore, an opening and closing mechanism is provided to open and close the outlet of the connecting pipe after the amount of rainwater collected in the collection tank is sufficient, in order to reduce the possibility of secondary pollution to the collected rainwater.

[0020] Preferably, the second control component includes a slider fixedly connected to the second valve plate, a second elastic member disposed on the slider such that the fan-shaped drain outlet on the second valve plate coincides with the fan-shaped drain outlet on the first valve plate, a slide rod slidably connected to the connecting pipe to abut against the slider, and a pusher for pushing the slide rod to move closer to the slider; the inner wall of the connecting pipe is provided with a groove for the slider to slide and connect, the surface of the slider near the slide rod is provided with a first guide surface, and the slide rod is used to abut against the first guide surface to push the slider to move closer to the second elastic member, so that the fan-shaped drain outlets on the first valve plate and the second valve plate are misaligned.

[0021] By adopting the above technical solution, when the water volume in the collection tank is small, the second valve plate, under the action of the second elastic element, overlaps with the fan-shaped drain outlet of the first valve plate, and the water outlet end of the connecting pipe is in an open state, so that the water in the drain pipe enters the collection tank; when the water volume in the collection tank is large, the pusher pushes the slide rod to slide closer to the slider, so as to abut against the first guide surface, so as to push the slider to move closer to the second elastic element, so that the fan-shaped drain outlets on the first valve plate and the second valve plate are misaligned, thereby closing the water outlet end of the connecting pipe, so as to realize the opening and closing of the connecting pipe at the water outlet end.

[0022] Preferably, the pushing member includes a first connecting rod connected to the first control float, a second connecting rod slidably connected to the first connecting rod, a second control float coaxially sleeved on the second connecting rod, and a third control float disposed on the upper end of the second connecting rod, wherein the third control float has a second guide surface provided on the side wall near the slide rod.

[0023] By adopting the above technical solution, when the second control float comes into contact with water, it rises with the water level to lift it up, thereby bringing the second guide surface on the third control float against the slide rod. This causes the slide rod to move closer to the slider, which in turn moves closer to the second elastic element, thus closing the outlet of the connecting pipe. When the amount of rainwater in the collection tank decreases to the level of the second control float, the water level drops, causing the second connecting rod to slide and connect to the first connecting rod. This lowers the height of the second control float, and the height of the third control float also decreases. This allows the second valve plate, under the action of the second elastic element, to overlap with the fan-shaped drain outlet of the first valve plate, opening the outlet of the connecting pipe to collect the next rainwater.

[0024] Preferably, the connecting pipe is a U-shaped pipe, and the lowest end of the connecting pipe is provided with a drain outlet and a detachable cap for opening and closing the drain outlet.

[0025] By adopting the above technical solution, when it is not raining, the cover can be removed and the impurities and sewage in the U-shaped pipe can be discharged through the drain outlet. This reduces the possibility of rainwater entering the water collection tank through the connecting pipe when it rains again, thus preventing secondary pollution of the rainwater collected in the water collection tank.

[0026] Preferably, a liquid addition tube is fixedly inserted through the upper end face of the reagent kit, and the liquid addition tube extends to the outside of the water collection tank.

[0027] By adopting the above technical solution, since the amount of disinfectant that can be added to the kit is limited, and since the kit is set in the water collection tank, it is inconvenient to add disinfectant. At this time, by setting up a liquid addition tube, new disinfectant can be added, so that the kit can disinfect the rainwater in the subsequent water collection tank, and it is also convenient to add new disinfectant to the kit.

[0028] In summary, the present invention has the following beneficial effects:

[0029] 1. Equipped with a spraying mechanism, during rainfall, rainwater presses down on the pressing block, causing the control lever to slide downwards. This moves the first connecting hole closer to the outlet. When the first connecting hole and the outlet are connected, the disinfectant inside the kit drips into the collection tank, mixing with the rainwater and thus disinfecting it. When rainfall decreases or stops, the pressing block returns to its original position under the elastic force of the first elastic element, causing the first connecting hole and the through hole on the control lever to misalign. This prevents the disinfectant from dripping further into the collection tank, preserving the disinfectant for future use.

[0030] 2. When the rainwater collected in the collection tank is level with the inlet of the second drain pipe, the water level in the collection tank is not easily changed. However, when it is still raining, the rainwater flowing down from the straight pipe may connect with the water in the second drain pipe, which may affect the concentration of disinfectant applied in the collection tank and potentially cause secondary pollution to the collected rainwater. Therefore, an opening and closing mechanism is installed to open and close the outlet of the connecting pipe after the amount of rainwater collected in the collection tank is sufficient, in order to reduce the possibility of secondary pollution to the collected rainwater. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0032] Figure 2 This is a schematic cross-sectional view of the water collection channel pipe in Embodiment 1 of this application;

[0033] Figure 3 This is a schematic diagram of the internal structure of the water collection tank in Embodiment 1 of this application;

[0034] Figure 4 This is a schematic diagram of the internal structure of the reagent kit in Example 1 of this application;

[0035] Figure 5 This is a schematic diagram of the opening and closing mechanism in Embodiment 2 of this application;

[0036] Figure 6 yes Figure 5 A magnified view of part A in the middle.

[0037] Explanation of reference numerals in the attached drawings: 1. House; 2. Water collection channel pipe; 21. Water collection trough; 22. Barrier mesh panel; 3. Drainage pipe; 31. Straight pipe; 32. First drainage pipe; 321. First drainage outlet; 33. Second drainage pipe; 331. Second drainage outlet; 4. Water collection tank; 41. Water delivery pipe; 5. Connecting pipe; 51. Sewage outlet; 52. Cover; 53. Slide; 6. Application mechanism; 7. Reagent kit; 71. Liquid outlet; 72. Through pipe; 73. Liquid addition pipe; 8. First control component; 81. Control rod; 811. Through groove; 812. First connecting hole ; 813, Second connecting hole; 82, Pressing block; 83, First elastic element; 84, First control float; 841, Sealing gasket; 9, Opening and closing mechanism; 91, First valve plate; 92, Second valve plate; 93, Second control component; 931, Slider; 932, Second elastic element; 933, Slide rod; 94, Fan-shaped drain outlet; 95, Abutting block; 951, First guide surface; 10, Pushing element; 101, First connecting rod; 102, Second connecting rod; 103, Second control float; 104, Third control float; 1041, Second guide surface. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail below.

[0039] This application discloses a building drainage structure.

[0040] Example 1:

[0041] A building drainage structure, referring to Figure 1 The system includes a water collection pipe 2 installed at the bottom of the eaves of the house 1, a drain pipe 3 installed on the side wall of the house 1 and connected to one end of the water collection pipe 2, a water collection tank 4 installed on one side of the drain pipe 3, and a connecting pipe 5 installed on the drain pipe 3 to input rainwater into the water collection tank 4. There are two water collection pipes 2, symmetrically arranged along the length of the house 1. Each water collection pipe 2 forms a water collection trough 21 along its length. The upper end of the water collection pipe 2 is horizontal, and the depth of the water collection trough 21 increases towards the drain pipe 3.

[0042] Reference Figure 1 , 2Furthermore, to reduce the entry of external impurities into the drain pipe 3, a baffle plate 22 is installed at the top opening of the water collection trough 21. The baffle plate 22 is fixedly connected to the inner wall of the water collection channel pipe 2. The baffle plate 22 is inclined, and its length direction intersects with the bottom surface of the water collection trough 21. The baffle plate 22 effectively blocks larger debris such as fallen leaves and gravel, reducing the possibility of blockage in the water collection channel pipe 2 and the drain pipe 3. The relatively lower end of the baffle plate 22 can be used to collect the intercepted debris, facilitating subsequent cleaning.

[0043] Reference Figure 1 , Figure 3 The drainage pipe 3 includes a straight pipe 31 connected to the water collection channel pipe 2 and a first drainage pipe 32 and a second drainage pipe 33 symmetrically arranged along the axis of the straight pipe 31. In this embodiment, the lower ends of the first drainage pipe 32 and the second drainage pipe 33 are inclined away from the straight pipe 31. The lower end of the first drainage pipe 32 away from the straight pipe 31 is provided with a first drainage outlet 321 and is connected to the connecting pipe 5 for collecting rainwater into the water collection tank 4. The lower end of the second drainage pipe 33 away from the straight pipe 31 is provided with a second drainage outlet 331 for discharging excess water.

[0044] In this embodiment, the connecting pipe 5 is a U-shaped pipe. The lowest end of the connecting pipe 5 has a drain outlet 51 and a detachable cap 52 for opening and closing the drain outlet 51. This reduces the possibility of rainwater that did not enter the water collection tank 4 in the previous run entering the water collection tank 4 and causing secondary pollution. It should be noted that the inlet end of the first drain pipe 32 is higher than the outlet end of the connecting pipe 5 and lower than the upper surface of the water collection tank 4.

[0045] The water collection tank 4 has a water pipe 41 fixedly installed on its lower side wall to transport rainwater from the water collection tank 4 to other places where water is needed.

[0046] Reference Figure 3 In order to reduce the frequency of manual application of disinfectant to the water collection tank 4 when collecting rainwater, a disinfection device 6 is provided in the water collection tank 4 to disinfect the rainwater collected in the water collection tank 4.

[0047] Reference Figure 3 , Figure 4Specifically, the application mechanism 6 includes a reagent kit 7 with an outlet 71 and a first control component 8 for controlling the opening and closing of the outlet 71. In this embodiment, the reagent kit 7 contains disinfectant and is located below the connecting tube 5. The reagent kit 7 is fixedly connected to the connecting tube 72 along its height direction. In this embodiment, the two ends of the connecting tube 72 are flush with the outer top wall and the outer bottom wall of the reagent kit 7, respectively. The outlet 71 is specifically located on the inner peripheral wall of the connecting tube 72 and at the lower end of the connecting tube 72. Several outlets 71 are spaced apart along the axis of the connecting tube 72.

[0048] Furthermore, since the amount of disinfectant that can be added to the reagent kit 7 is limited, and since the reagent kit 7 is located inside the water collection tank 4, it is inconvenient to add disinfectant. Therefore, in this embodiment, a liquid addition tube 73 is fixedly inserted through the upper end of the reagent kit 7. The lower end of the liquid addition tube 73 extends to the bottom of the reagent kit 7, and the upper end of the liquid addition tube 73 extends outside the water collection tank 4. It should be noted that in this embodiment, the liquid addition tube 73 is a transparent flexible tube to allow for viewing of the added disinfectant. The newly added disinfectant is poured into the reagent kit 7 through the inlet end of the liquid addition tube 73. After addition, the inlet end of the liquid addition tube 73 is sealed with a sealing plug (not shown in the figure) to reduce the entry of external substances into the reagent kit 7 through the liquid addition tube 73.

[0049] Specifically, the first control component 8 includes a control rod 81 that slides through the connecting tube 72, a pressing block 82 disposed at the upper end of the control rod 81, a first elastic element 83 that forces the pressing block 82 away from the reagent kit 7, and a first control float 84 fixedly connected to the lower end of the control rod 81. The pressing block 82 is disposed below the connecting tube 5. A through groove 811 is formed on the lower end face of the control rod 81. A first connecting hole 812 is formed through the inner wall of the through groove 811, and a second connecting hole 813 is formed below the first connecting hole 812. In this embodiment, the first elastic element 83 is a first spring, which is coaxially sleeved on the outer peripheral wall of the control rod 81. The two ends of the first spring are respectively fixedly connected to the surfaces of the reagent kit 7 and the pressing block 82 that are close to each other.

[0050] When rainwater enters the collection tank 4 through the collection channel pipe 2, drain pipe 3, and connecting pipe 5, pressure is applied to the pressing block 82, causing the control lever 81 to slide closer to the reagent kit 7. When the first connecting hole 812 and the liquid outlet are connected, the disinfectant in the reagent kit 7 enters the through channel 811 through the liquid outlet and the first connecting hole 812, and flows out through the second connecting hole 813, mixing with the rainwater in the collection tank 4 to disinfect the rainwater. When there is no rain or the rainfall decreases, the pressing block 82 will be restored by the elastic force of the first elastic element 83, causing the first connecting hole 812 and the through hole on the control lever 81 to be misaligned, so that the disinfectant in the reagent kit 7 will not continue to drip into the collection tank 4, allowing the unused disinfectant in the reagent kit 7 to be stored for future use.

[0051] Reference Figure 4 Furthermore, a sealing gasket 841 is coaxially sleeved on the surface of the first control float 84 near the control rod 81. The sealing gasket 841 has a T-shaped cross-section. The upper end of the sealing gasket 841 is slidably inserted into the through tube 72 to fill the gap between the first control float 84 and the reagent kit 7, thereby reducing the possibility of rainwater entering the reagent kit 7.

[0052] The implementation principle of a building drainage structure in this application embodiment is as follows: When the amount of rainwater remaining in the water collection tank 4 is small, when it rains, the rainwater flowing into the connecting pipe 5 enters the water collection tank. At this time, the rainwater presses the pressing block 82, causing the control rod 81 to slide downwards, bringing the first connecting hole 812 closer to the outlet. When the first connecting hole 812 and the outlet are connected, the disinfectant in the reagent kit 7 drips into the water collection tank 4 and mixes with the rainwater in the water collection tank 4, thereby disinfecting the rainwater. When the rainfall decreases or there is no rainfall, the pressing block 82 will be restored by the elastic force of the first elastic element 83, causing the first connecting hole 812 and the through hole on the control rod 81 to be misaligned, so that the disinfectant in the reagent kit 7 will not continue to drip into the water collection tank 4, and the disinfectant in the reagent kit 7 will be stored for future use.

[0053] This reduces the frequency of manually adding disinfectant to the water collection tank 4, making it more convenient to use.

[0054] Example 2:

[0055] Reference Figure 5 , Figure 6 The difference from Embodiment 1 is that, in order to reduce the risk of secondary pollution of the collected rainwater, the water level in the collection tank 4 is not easily changed after the rainwater in the collection tank 4 has been collected. If it is still raining, the rainwater flowing down from the straight pipe 31 may connect with the water in the second drain pipe 33, which may cause secondary pollution of the collected rainwater.

[0056] In this embodiment, the outlet end of the connecting pipe 5 is provided with an opening and closing mechanism 9. Specifically, the opening and closing mechanism 9 includes a first valve plate 91 coaxially fixedly connected to the inner wall of the connecting pipe 5, a second valve plate 92 rotatably connected to the first valve plate 91, and a second control component 93 for controlling the rotation of the second valve plate 92.

[0057] The first valve plate 91 and the second valve plate 92 are provided with a number of fan-shaped drain ports 94. The number of fan-shaped drain ports 94 are arranged around the circumference of the corresponding first valve plate 91 or second valve plate 92. The arc of the interval between two adjacent fan-shaped drain ports 94 is greater than the arc of the fan-shaped drain port 94.

[0058] Specifically, the second control component 93 includes a slider 931 fixedly connected to the second valve plate 92, a second elastic member 932 disposed on the slider 931 such that the fan-shaped drain outlet 94 on the first valve plate 91 coincides with the fan-shaped drain outlet 94 on the second valve plate 92, a slide rod 933 slidably connected to the connecting pipe 5 to abut against the slider 931, and a pusher 10 for pushing the slide rod 933 to move in a direction closer to the slider 931.

[0059] The inner wall of the connecting pipe 5 is provided with a sliding groove 53 for the slider 931 to slide and connect. The end face of the second valve plate 92 near the slider 933 is provided with an abutment block 95, and the surface of the abutment block 95 near the slider 933 is provided with a first guide surface 951. In this embodiment, the two ends of the slider 933 are semi-circular. The end of the slider 933 near the abutment block 95 is used to abut against the first guide surface 951 to push the slider 931 to move towards the second elastic member 932, so that the fan-shaped drain outlets 94 on the first valve plate 91 and the second valve plate 92 are misaligned.

[0060] The pusher 10 includes a first connecting rod 101 fixedly connected to the side wall of the first control float 84, a second connecting rod 102 slidably connected to the first connecting rod 101, a second control float 103 coaxially sleeved on the second connecting rod 102, and a third control float 104 fixedly connected to the upper end of the second connecting rod 102. In this embodiment, the third control float 104 has a second guide surface 1041 on the side wall near the slide bar 933.

[0061] When the second control float 103 comes into contact with water, as the water level rises, the second guide surface 1041 on the third control float 104 comes into contact with the slide rod 933, causing the slide rod 933 to move closer to the slider 931, which in turn moves the slider 931 closer to the second elastic member 932, thus closing the outlet of the connecting pipe 5. When the amount of rainwater in the collection tank 4 decreases to the level of the second control float 103, as the water level drops, the second connecting rod 102 slides and connects to the first connecting rod 101, causing the height of the second control float 103 to decrease, and the height of the third control float 104 also decreases. This causes the second valve plate 92, under the action of the second elastic member 932, to overlap with the fan-shaped drain outlet 94 of the first valve plate 91, and the outlet of the connecting pipe 5 to open, so as to collect the next rainwater.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A building drainage structure, characterized in that: The system includes a water collection pipe (2) installed at the bottom of the eaves of the house (1), a drain pipe (3) installed on the side wall of the house (1) and connected to one end of the water collection pipe (2), a water collection tank (4) installed on one side of the drain pipe (3), and a connecting pipe (5) installed on the drain pipe (3) to input rainwater into the water collection tank (4). The water collection pipe (2) forms a water collection trough (21) along its own length direction. The drain pipe (3) is provided with a first drain outlet (321) and a second drain outlet (331). The connecting pipe (5) is connected to the first drain outlet (321). The water collection tank (4) is provided with a disinfection device (6) for disinfecting the rainwater collected in the water collection tank (4). The disinfection device (6) includes a reagent kit (7) with a liquid outlet (71) and a device installed on the reagent kit (7) to control the liquid outlet (71). The first control component (8) for opening and closing is provided. The reagent kit (7) contains disinfectant and is located below the connecting tube (5). The reagent kit (7) is fixedly provided with a connecting tube (72) along its height direction. The outlet (71) is located on the inner peripheral wall of the connecting tube (72). The first control component (8) includes a control rod (81) that slides through the connecting tube (72), a pressing block (82) located at the upper end of the control rod (81), and a first elastic element (83) that forces the pressing block (82) to move away from the reagent kit (7). The pressing block (82) is located below the connecting tube (5). A through groove (811) is provided on the lower end face of the control rod (81). A first connecting hole (812) is provided through the inner wall of the through groove (811) of the control rod (81). The first control component (8) further includes a first control float (84) disposed at the lower end of the control lever (81). The drain pipe (3) includes a straight pipe (31) connected to the water collection channel pipe (2) and a first drain pipe (32) and a second drain pipe (33) symmetrically arranged along the axis of the straight pipe (31). The lower ends of the first drain pipe (32) and the second drain pipe (33) are inclined away from the straight pipe (31). The first drain outlet (321) is located on the first drain pipe (32), and the second drain pipe (33) is located on the second drain outlet (331). The connecting pipe (5) is provided with an opening and closing mechanism (9) at one end near the water collection tank (4). The opening and closing mechanism (9) includes a first valve plate (91) disposed in the connecting pipe (5), a second valve plate (92) rotatably connected to the first valve plate (91), and a second control component (93) for controlling the rotation of the second valve plate (92). The first valve plate (91) and the second valve plate (92) are each provided with a plurality of fan-shaped drain outlets (94). The plurality of fan-shaped drain outlets (94) are arranged circumferentially along the corresponding first valve plate (91) or second valve plate (92). The arc of the interval between two adjacent fan-shaped drain outlets (94) is greater than the arc of the fan-shaped drain outlet (94).

2. The building drainage structure according to claim 1, characterized in that: The first control float (84) has a sealing gasket (841) on its surface near the control rod (81).

3. A building drainage structure according to claim 1, characterized in that: The second control component (93) includes a slider (931) fixedly connected to the second valve plate (92), a second elastic member (932) disposed on the slider (931) such that the fan-shaped drain outlet (94) on the second valve plate (92) coincides with the fan-shaped drain outlet (94) on the first valve plate (91), a slide rod (933) slidably connected to the connecting pipe (5) to abut against the slider (931), and a component for pushing the slide rod (933) toward the slider (931). The inner wall of the connecting pipe (5) is provided with a sliding groove (53) for sliding connection of the slider (931). The surface of the slider (931) near the slide rod (933) is provided with a first guide surface (951). The slide rod (933) is used to abut against the first guide surface (951) to push the slider (931) to move towards the direction of the second elastic member (932), so that the fan-shaped drain outlets (94) on the first valve plate (91) and the second valve plate (92) are misaligned.

4. A building drainage structure according to claim 3, characterized in that: The pusher (10) includes a first connecting rod (101) connected to the first control float (84), a second connecting rod (102) slidably connected to the first connecting rod (101), a second control float (103) coaxially sleeved on the second connecting rod (102), and a third control float (104) disposed on the upper end of the second connecting rod (102). The third control float (104) has a second guide surface (1041) on its side wall near the slide rod (933).

5. A building drainage structure according to claim 1, characterized in that: The connecting pipe (5) is a U-shaped pipe, and the lowest end of the connecting pipe (5) is provided with a drain outlet (51) and a detachable cover (52) for opening and closing the drain outlet (51).

6. A building drainage structure according to claim 1, characterized in that: The reagent kit (7) has a liquid filling tube (73) fixedly inserted through its upper end face, and the liquid filling tube (73) extends to the outside of the water collection tank (4).

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