Balcony sewage and roof rainwater co-management separate construction method and device

Abstract

The application discloses a balcony sewage and roof rainwater co-pipe distribution construction method and device, and relates to rain and sewage distribution reconstruction engineering. The method comprises the following steps: prefabricating a reinforced hose containing axial reinforcing fibers; fixing the upper end of the hose to a rain and sewage distribution joint, and transferring the weight to a square or cylindrical suspension beam by using mode A or mode B; installing a top-stretching air pipe; introducing the lower end of the hose into a rainwater pipe network from a sewage well by using a floating ball traction method; and tightening the hose and placing the suspension beam on the roof. The device comprises two structures corresponding to mode A and mode B. The application bears the weight by using axial reinforcing fibers, collects all the rainwater at the top of the original drainage vertical pipe, and discharges the rainwater into the rainwater pipe network through the reinforced hose. The balcony sewage is still discharged into the sewage pipe network by the original vertical pipe. The application does not need to enter the house for construction, does not damage the building appearance and the roof structure, realizes 100% rainwater collection, and has excellent drainage capacity and simple construction.

Description

Technical Field

[0001] This invention relates to rainwater and sewage separation renovation projects in existing residential communities, specifically to a construction method and apparatus for separating and discharging domestic sewage from balcony water and rainwater from rooftop water. Background Technology

[0002] From the 1990s to the early 2000s, China built a large number of residential complexes with approximately seven stories. These complexes generally used the same riser to discharge rainwater from the rooftops and domestic sewage from balconies (such as washing machine drainage) simultaneously. While this combined sewer system complied with policies at the time, it no longer meets environmental protection requirements and urgently needs to be upgraded.

[0003] Currently, the main approach to rainwater and sewage separation renovations is the secondary low-point drainage scheme. This scheme involves sealing off the original rooftop drainage outlets, creating new openings nearby, and installing new pipes to divert rainwater to the ground-level rainwater drainage network, while sewage from balconies continues to flow into the sewage network through the original pipes. However, this scheme has significant drawbacks: low rooftop rainwater collection rates, damage to the building's appearance, and a tendency to cause rooftop water accumulation and leaks.

[0004] The applicant previously filed a patent application (application number: 202411001848.6) proposing a technical solution that can achieve 100% rainwater collection from rooftops. However, the implementation of this solution requires construction on residents' balconies, and since the vast majority of residents do not agree to construction on their balconies, in practice, the applicant is still forced to adopt a secondary low-point drainage solution with limited modification effects.

[0005] Therefore, developing a rainwater and sewage separation renovation technology that does not require entry into the house, is easy to construct, has a high rainwater collection rate, and does not damage the building's appearance has important practical significance and application value. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a construction method and device that can achieve rainwater and sewage separation without entering the house, in order to address the drawbacks of existing technologies that require construction to be carried out on the balconies of residents.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: On the one hand, the present invention provides a method for separating balcony sewage and roof rainwater through a common pipe system, eliminating the need for in-unit construction, comprising the following steps: Step 1: Prefabricate reinforced hoses. The reinforced hoses are spiral steel wire reinforced hoses with axially extending reinforcing fibers inside the hose wall. The reinforced hoses are cut to the appropriate length according to the distance from the roof to the ground rainwater pipe network. Step two, securely connect the upper end of the reinforced hose to the rainwater and sewage diversion connector, and transfer the weight of the reinforced hose to the suspension beam (square suspension beam or cylindrical suspension beam), specifically using any of the following methods: Method A: The rainwater and sewage diversion joint is equipped with a fixed sleeve with a notch at the bottom. After peeling off the axial reinforcing fiber, pass it through the buckle, enter the notch, and go around the suspension rod set below the fixed sleeve. Then insert the reinforcing hose into the fixed sleeve, and then pass the axial reinforcing fiber through the buckle again. After tightening, it is locked and fixed by the screw on the buckle. Method B: The rainwater and sewage diversion joint is equipped with a fixed sleeve. The inner wall of the fixed sleeve is provided with an axial groove, and the outer wall of the reinforcing hose is provided with a reinforcing rib. The reinforcing hose is inserted into the fixed sleeve and the reinforcing rib is embedded in the axial groove to achieve circumferential positioning. After the axial reinforcing fiber is peeled off, it extends out of the rainwater and sewage diversion joint, passes upward around the cylindrical suspension beam, and is locked and fixed by a buckle. The axial reinforcing fiber replaces the left tie rod to play the role of load-bearing connection. Step 3: Connect the rainwater and sewage diversion joint to the suspension beam via tie rods, and install a PVC roof vent pipe above the rainwater and sewage diversion joint; wherein, when using method A, the connection is made via the left tie rod and the right tie rod; when using method B, the connection is made via axial reinforcing fiber and the right tie rod. Step 4: Tie one end of a traction rope to the float and the other end to the lower end of the reinforcing hose. Place the float and traction rope into the original sewer, so that the float flows out of the surface sewage well with the water flow. After the traction rope is exposed, pull it to pull the lower end of the reinforcing hose out of the sewage well and send it into the surface rainwater pipe network. Step 5: Tighten the reinforcing hose and place both ends of the suspension beam stably on the rooftop to complete the installation; the lower end of the reinforcing hose extends into the original sewer and no artificial fixing point is set between it and the original sewer.

[0008] Furthermore, in step two, the axial reinforcing fibers are one or more bundles, concentrated in a local position on the pipe wall, and the reinforcing fibers are selected from soft steel wires or high-strength synthetic fibers.

[0009] Furthermore, in step three, a guide vane is installed on the suspension beam to prevent the formation of vortices during drainage, which would reduce the drainage capacity.

[0010] Furthermore, before step one, the roof drain outlet is pre-treated: the original filter screen is removed, and a small-hole filter screen is fixed with cement mortar. The filter screen is made of 304 stainless steel with a wire diameter of 1.5mm and a mesh size of 4×4mm. After installation, the water passage area is not less than 150×500mm. On the other hand, the present invention provides a device for separating balcony sewage and roof rainwater through a common pipe system to implement the above method, eliminating the need for in-house construction, comprising two structural schemes: Option A device includes a reinforced hose, a rainwater and sewage diversion connector, a left tie rod, a right tie rod, and a square suspension beam. The reinforced hose is a spiral steel wire reinforced hose with axially extending reinforcing fibers inside its wall. The rainwater and sewage diversion connector is connected to the square suspension beam via the left and right tie rods. Only the upper end of the reinforced hose is connected to the rainwater and sewage diversion connector, and the lower end of the reinforced hose is a free end. The rainwater and sewage diversion connector is equipped with a fixing sleeve with a notch at the bottom. After the axial reinforcing fibers are peeled off, they pass through the buckle, enter the notch, and bypass the suspension rod located below the fixing sleeve. After passing through the buckle again, they are locked and fixed by the screws on the buckle.

[0011] Option B device: includes a reinforced hose, a rainwater / sewage diversion connector, a right tie rod, and a cylindrical suspension beam; the reinforced hose is a spiral steel wire reinforced hose, with axially extending reinforcing fibers inside its wall; the rainwater / sewage diversion connector is connected to the cylindrical suspension beam via the axial reinforcing fibers and the right tie rod, with only the upper end of the reinforced hose connected to the rainwater / sewage diversion connector, and the lower end of the reinforced hose being a free end; the rainwater / sewage diversion connector is equipped with a fixing sleeve, the inner wall of which has an axial groove, and the outer wall of the reinforced hose has reinforcing ribs embedded in the axial grooves; the axial reinforcing fibers, after being peeled off, extend out of the rainwater / sewage diversion connector, pass upwards around the cylindrical suspension beam, and are locked in place by a buckle, with the axial reinforcing fibers replacing the left tie rod to provide a load-bearing connection.

[0012] Furthermore, the axial reinforcing fibers are one or more bundles, concentrated in a local position on the pipe wall, and the reinforcing fibers are selected from soft steel wire or high-strength synthetic fibers.

[0013] Furthermore, a guide vane is installed on the suspension beam.

[0014] Furthermore, the device also includes a perforated filter screen installed at the roof drain outlet. The filter screen is made of 304 stainless steel with a wire diameter of 1.5mm and a mesh size of 4×4mm. After installation, the water passage area is not less than 150×500mm.

[0015] Furthermore, the rainwater and sewage diversion joint is made of a circular plate with a diameter of 80~104mm. The plate has a threaded pipe interface and several small holes on the edge of the plate. A rubber sealing ring is provided above the rainwater and sewage diversion joint, and a pressure plate is provided above the rubber sealing ring. The sealing ring and the pressure plate are fixed to the rainwater and sewage diversion joint by screws. The outer edge of the rubber sealing ring is slightly beveled. Compared with the prior art, the present invention has the following beneficial effects: 1. No need to enter residents' balconies for construction: The method and device of this invention can only be operated in the public areas on the roof and ground, completely avoiding the problem of entering the resident's home, and greatly improving the feasibility and implementation efficiency of the renovation project.

[0016] 2. Retain the original drainage riser: Do not change the building's appearance, do not add new external wall pipes, and do not affect the building's aesthetics.

[0017] 3. No damage to the roof structure: No need to drill new holes in the roof, no new risk of water leakage, and protection of the building's integrity.

[0018] 4. 100% rainwater collection rate: All rainwater is collected from the top of the original drainage riser, which is at least 8 times higher than the existing second-lowest point drainage scheme (collection rate of less than 10%), resulting in significant environmental benefits.

[0019] 5. Excellent drainage capacity: According to actual tests, under the condition of a seven-story building rooftop (21-meter drop), the drainage capacity of the reinforced hose with an inner diameter of 32mm can reach more than 18m³ / h, which can cope with extremely heavy rain.

[0020] 6. Reliable Connection: Utilizing the axial reinforcing fibers of the reinforced hose for load-bearing, prestress is established during installation by tightening, directly transferring the weight of the hose and water to the suspension beam, avoiding the risk of detachment that may occur with simple adhesive or clamp fixation. In Method B, the axial reinforcing fibers replace the left tie rod, further simplifying the structure.

[0021] 7. Simple and quick construction: No need for spider-like high-altitude operations, greatly reducing construction costs and time. Attached Figure Description

[0022] Figure 1 This is a 3D view of a rainwater and sewage diversion joint with a notch in the fixed sleeve.

[0023] Figure 2 This is a 3D view of the hose (the axial reinforcing fibers in the upper section are in a peeled state).

[0024] Figure 3 This is a cross-sectional view of the reinforced hose.

[0025] Figure 4 This is a top view of the rubber sealing ring of the rainwater and sewage separation joint.

[0026] Figure 5 This is a cross-sectional view of the rubber sealing ring of the rainwater and sewage diversion joint.

[0027] Figure 6 This is a top view of the rubber sealing ring pressure plate of the rainwater and sewage diversion joint.

[0028] Figure 7 This is a 3D view of the air guide plate.

[0029] Figure 8 This is a diagram showing the positional relationship of each component.

[0030] Figure 9 This is the assembly drawing without the guide vanes installed (using device A).

[0031] Figure 10 This is the final assembly drawing after the guide vanes are installed (using device A).

[0032] Figure 11 This is a three-dimensional view of a rainwater and sewage separation joint with a grooved fixed sleeve.

[0033] Figure 12 This is the assembly drawing for replacing the left tie rod with axially reinforced fibers (using device B). In the diagram: 1. PVC roof vent pipe; 2. Square suspension beam; 3. Right tie rod; 4. Left tie rod; 5. PVC external threaded connector; 6. Rainwater / sewage diversion joint rubber sealing ring; 7. Rainwater / sewage diversion joint rubber sealing ring pressure plate; 8. Rainwater / sewage diversion joint fixing sleeve; 9. Fixing sleeve notch; 10. Suspension rod; 11. Short stripped axial reinforcing fiber; 12. Clip; 13. Reinforced hose; 14. Reinforcing rib; 15. Spiral steel wire end; 16. Axial reinforcing fiber; 17. Guide plate; 18. Groove; 19. Cylindrical suspension beam; 20. Double screw clip; 21. Long stripped axial reinforcing fiber. Detailed Implementation

[0034] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will understand that the following description is merely illustrative and does not constitute a limitation on the scope of protection of the present invention.

[0035] Example 1: Method and apparatus using approach A (gap scheme) This embodiment uses, as follows: Figure 1 The rainwater and sewage separation connector shown has a notch (9).

[0036] The construction method is as follows: 1. Pre-treatment of rooftop drainage outlet: Remove the original filter screen and fix the small-hole filter screen with cement mortar. The filter screen is made of 304 stainless steel with a wire diameter of 1.5mm and a mesh size of 4×4mm. After installation, the water passage area is not less than 150×500mm.

[0037] 2. Estimate the length of the rainwater pipe network from the roof to the ground and cut a reinforced hose of the corresponding length (13). The reinforced hose is a spiral steel wire reinforced hose, and its pipe wall is provided with axially extending reinforcing fibers (16), which are concentrated in a local position on the pipe wall.

[0038] 3. For example Figure 2As shown, a short section of axial reinforcing fiber is peeled out from the wall of the reinforcing hose and named short-stripped axial reinforcing fiber (11). The short-stripped axial reinforcing fiber (11) is passed through the buckle (12), and then the end of the hose is inserted into the fixed sleeve (8) of the rainwater and sewage diversion connector, so that the fiber enters the notch (9) at the bottom of the fixed sleeve and goes around the suspension rod (10), and passes through the buckle (12) again. The fiber is tightened, and then the screw on the buckle is tightened to fix the fiber. During operation, the weight of the hose and the water in it is transmitted to the suspension rod through the fiber. Adhesive is applied between the hose and the fixed sleeve for sealing, and adhesive is applied to the surface of the peeled axial reinforcing fiber (11) to prevent corrosion.

[0039] 4. Secure the rubber sealing ring (6) and pressure plate (7) to the rainwater and sewage diversion joint with screws. Install the guide plate (17) on the square suspension beam (2). Connect the square suspension beam (2) to the rainwater and sewage diversion joint using the left pull rod (4) and the right pull rod (3). Screw the PVC external thread straight rod (5) into the rainwater and sewage diversion joint, and apply glue to the PVC vent pipe (1) before inserting it into the external thread straight rod (5).

[0040] 5. Take a tow rope, tie one end to a float, and the other end to the end of a reinforcing hose. Pour the float, tow rope, and water into the existing sewer. The float will flow out of the surface sewage well with the water flow. Once the tow rope is exposed, pull firmly to pull the end of the reinforcing hose out of the sewage well, and then send it into the surface stormwater drainage network.

[0041] 6. Tighten the reinforcing hose to ensure that both ends of the square suspension beam (2) are placed stably on the rooftop, completing the installation. The lower end of the reinforcing hose extends into the original sewer, and no artificial fixing point is set between it and the original sewer.

[0042] The resulting device is device A: including a reinforced hose (13), a rainwater and sewage diversion connector, a left pull rod (4), a right pull rod (3), and a square suspension beam (2); the rainwater and sewage diversion connector is connected to the square suspension beam through the left pull rod and the right pull rod, the reinforced hose is only connected to the rainwater and sewage diversion connector at its upper end, and the lower end of the reinforced hose is a free end; the bottom of the fixing sleeve (8) of the rainwater and sewage diversion connector has a notch (9), the axial reinforcing fiber (11) is peeled off and passes through the buckle (12), enters the notch and goes around the suspension rod (10), passes through the buckle again and is locked and fixed by the screw on the buckle. Example 2: Method and apparatus using method B (groove scheme) This embodiment uses, as follows: Figure 11 The fixed sleeve shown has a rainwater and sewage diversion joint with a groove (18) on the inner wall.

[0043] like Figure 12 As shown, the difference between this embodiment and embodiment 1 is that the left tie rod (4) is replaced with long peeled axial reinforcing fiber (21), so only the right tie rod (3) needs to be installed.

[0044] The construction method is as follows: 1. The pretreatment of the rooftop drainage outlet is the same as in Example 1.

[0045] 2. Cut the reinforcing hose to the appropriate length (13).

[0046] 3. Strip approximately 35 cm of the axial reinforcing fiber; this stripped fiber is named the long-stripped axial reinforcing fiber (21). Cut off the tubular section (approximately 35 cm in length) of the stripped axial reinforcing fiber and discard it. Insert the remaining reinforcing tubing into... Figure 11 When inserting the rainwater and sewage diversion connector shown, ensure that the reinforcing rib (14) on the outer wall of the hose is aligned with and embedded in the groove (18) to achieve circumferential positioning. Seal the gap between the hose and the rainwater and sewage diversion connector fixing sleeve with adhesive.

[0047] 4. Pass the long stripped axial reinforcing fiber (21) through the double screw clip (20), around the cylindrical suspension beam (19) upwards, and then through the double screw clip (20) again. Tighten the two screws on the clip to secure the fiber. In this way, the axial reinforcing fiber replaces the function of the left pull rod (4), directly transferring the weight of the hose to the cylindrical suspension beam (19). Apply adhesive to the surface of the stripped axial reinforcing fiber to prevent corrosion.

[0048] 5. Secure the rubber sealing ring (6) and pressure plate (7) to the rainwater and sewage diversion joint with screws. Install the guide plate (17) onto the cylindrical suspension beam (19). Connect the cylindrical suspension beam (19) to the rainwater and sewage diversion joint using the right tie rod (3) (the left tie rod has been replaced by axial reinforcing fiber, so it is omitted). Screw the PVC external thread connector (5) into the rainwater and sewage diversion joint, and after applying glue to the PVC vent pipe (1), insert it into the external thread connector (5).

[0049] 6. The towing and installation steps are the same as in Example 1.

[0050] The resulting device is device B: it includes a reinforced hose (13), a rainwater and sewage diversion connector, a right tie rod (3), and a cylindrical suspension beam (19); the rainwater and sewage diversion connector is connected to the cylindrical suspension beam through axial reinforcing fibers and the right tie rod, the reinforced hose is only connected to the rainwater and sewage diversion connector at its upper end, and the lower end of the reinforced hose is a free end; the inner wall of the fixing sleeve (8) of the rainwater and sewage diversion connector is provided with an axial groove (18), and the reinforcing rib (14) of the outer wall of the reinforced hose is embedded in the groove; after the axial reinforcing fiber (21) is peeled off, it extends out of the rainwater and sewage diversion connector, passes upward around the cylindrical suspension beam (19), and is locked and fixed by a buckle (20). The axial reinforcing fiber replaces the left tie rod to play a load-bearing connection role. Performance testing A field test was conducted on the rooftop of a seven-story building, where a large water tank was placed (21 meters above the ground). A reinforced flexible hose with an inner diameter of 32mm was used to test the drainage capacity. The results showed that the drainage capacity could reach over 18 m³ / h, sufficient to handle even severe rainstorms. The rainwater collection rate reached 100%, with all rooftop rainwater entering the reinforced flexible hose through the top of the original drainage riser and then flowing into the ground-level rainwater drainage network. The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A construction method for separating balcony sewage and rooftop rainwater through a common pipe system, eliminating the need for water to enter the building, characterized in that... Includes the following steps: Step 1: Prefabricate reinforced hoses. The reinforced hoses are spiral steel wire reinforced hoses with axially extending reinforcing fibers inside the hose wall. The reinforced hoses are cut to the appropriate length according to the distance from the roof to the ground rainwater pipe network. Step two, securely connect the upper end of the reinforced hose to the rainwater and sewage diversion connector, and transfer the weight of the reinforced hose to the suspension beam, using any of the following methods: Method A: The rainwater and sewage diversion joint is equipped with a fixed sleeve with a notch at the bottom. After peeling off the axial reinforcing fiber, pass it through the buckle, enter the notch, and go around the suspension rod set below the fixed sleeve. Then insert the reinforcing hose into the fixed sleeve, and then pass the axial reinforcing fiber through the buckle again. After tightening, it is locked and fixed by the screw on the buckle. Method B: The rainwater and sewage diversion joint is equipped with a fixed sleeve. The inner wall of the fixed sleeve is provided with an axial groove, and the outer wall of the reinforcing hose is provided with a reinforcing rib. The reinforcing hose is inserted into the fixed sleeve and the reinforcing rib is embedded in the axial groove to achieve circumferential positioning. After the axial reinforcing fiber is peeled off, it extends out of the rainwater and sewage diversion joint, passes upward around the cylindrical suspension beam, and is locked and fixed by a buckle. The axial reinforcing fiber replaces the left tie rod to play the role of load-bearing connection. Step 3: Connect the rainwater and sewage diversion joint to the suspension beam via tie rods, and install a PVC roof vent pipe above the rainwater and sewage diversion joint; wherein, when using method A, the connection is made via the left tie rod and the right tie rod; when using method B, the connection is made via axial reinforcing fiber and the right tie rod. Step 4: Tie one end of a traction rope to the float and the other end to the lower end of the reinforcing hose. Place the float and traction rope into the original sewer, so that the float flows out of the surface sewage well with the water flow. After the traction rope is exposed, pull it to pull the lower end of the reinforcing hose out of the sewage well and send it into the surface rainwater pipe network. Step 5: Tighten the reinforcing hose and place both ends of the suspension beam stably on the rooftop to complete the installation; the lower end of the reinforcing hose extends into the original sewer and no artificial fixing point is set between it and the original sewer.

2. The construction method for separating balcony sewage and rooftop rainwater through a common pipe system without requiring entry into the household, as described in claim 1, is characterized in that: In step two, the axial reinforcing fibers are one or more bundles, arranged in a concentrated manner at a local position on the pipe wall, and the reinforcing fibers are selected from soft steel wires or high-strength synthetic fibers.

3. The construction method for separating balcony sewage and rooftop rainwater through a common pipe system without requiring entry into the household, as described in claim 1, is characterized in that: In step three, a guide vane is installed on the suspension beam.

4. The construction method for separating balcony sewage and rooftop rainwater through a common pipe system without requiring entry into the household, as described in claim 1, is characterized in that: Before step one, the process also includes pre-treatment of the roof drain: removing the original filter screen and fixing the small-hole filter screen with cement mortar. The filter screen is made of 304 stainless steel with a wire diameter of 1.5mm and a mesh size of 4×4mm. After installation, the water passage area is not less than 150×500mm.

5. A device for implementing the method according to any one of claims 1-4, characterized in that: Balcony sewage and rooftop rainwater are discharged through a shared pipe system without requiring entry into the building. It includes a reinforced hose, a rainwater and sewage diversion connector, a left tie rod, a right tie rod, and a square suspension beam; the reinforced hose is a spiral steel wire reinforced hose, and its tube wall is provided with reinforcing fibers extending axially; the rainwater and sewage diversion connector is connected to the square suspension beam through the left tie rod and the right tie rod, and the reinforced hose is only connected to the rainwater and sewage diversion connector at its upper end, with the lower end of the reinforced hose being a free end; The rainwater and sewage diversion joint is equipped with a fixed sleeve with a notch at the bottom. After the axial reinforcing fiber is peeled off, it passes through the buckle, enters the notch, and goes around the suspension rod located below the fixed sleeve. After passing through the buckle again, it is locked and fixed by the screw on the buckle.

6. A device for implementing the method according to any one of claims 1-4, characterized in that: Balcony sewage and rooftop rainwater are discharged through a shared pipe system without requiring entry into the building. It includes a reinforced hose, a rainwater and sewage diversion connector, a right tie rod, and a cylindrical suspension beam; the reinforced hose is a spiral steel wire reinforced hose, and its tube wall is provided with axially extending reinforcing fibers; the rainwater and sewage diversion connector is connected to the cylindrical suspension beam through the axial reinforcing fibers and the right tie rod, and the reinforced hose is only connected to the rainwater and sewage diversion connector at its upper end, with the lower end of the reinforced hose being a free end; The rainwater and sewage diversion joint is equipped with a fixed sleeve, the inner wall of which has an axial groove, and the outer wall of the reinforcing hose has a reinforcing rib. The reinforcing rib is embedded in the axial groove. After the axial reinforcing fiber is peeled off, it extends out of the rainwater and sewage diversion joint, passes upward around the cylindrical suspension beam, and is locked and fixed by a buckle. The axial reinforcing fiber replaces the left tie rod to play a load-bearing connection role.

7. The balcony sewage and roof rainwater co-pipeline drainage device for construction without entry into the unit, as described in claim 5 or 6, is characterized in that: The axial reinforcing fibers are one or more bundles, arranged in a concentrated manner at a local location on the pipe wall, and the reinforcing fibers are selected from soft steel wires or high-strength synthetic fibers.

8. The device for separating balcony sewage and rooftop rainwater through a common pipe system, eliminating the need for in-home construction, as described in claim 5 or 6, is characterized in that: A guide vane is installed on the suspension beam.

9. The balcony sewage and roof rainwater co-pipeline drainage device for construction without entry into the unit, as described in claim 5 or 6, is characterized in that: It also includes a perforated filter screen installed at the roof drain outlet. The filter screen is made of 304 stainless steel with a wire diameter of 1.5mm and a mesh size of 4×4mm. After installation, the water passage area is not less than 150×500mm.

10. The balcony sewage and roof rainwater co-pipeline drainage device for construction without entry into the unit, as described in claim 5 or 6, is characterized in that: The rainwater and sewage diversion joint is made of a circular plate with a diameter of 80~104mm. The plate has a threaded pipe interface and several small holes on the edge of the plate. A rubber sealing ring is provided above the rainwater and sewage diversion joint, and a pressure plate is provided above the rubber sealing ring. The sealing ring and the pressure plate are fixed to the rainwater and sewage diversion joint by screws. The outer edge of the rubber sealing ring is slightly beveled.

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