Balcony laundry sewage and roof rainwater co-pipe separate drainage device

Abstract

The utility model discloses a device for co-pipe separate drainage of balcony washing sewage and roof rainwater, and relates to the problem of diversion of balcony sewage and roof rainwater in the rainwater and sewage diversion transformation process of an existing residential district. In order to solve the problem that mixed drainage of balcony washing sewage and roof rainwater is very difficult to solve in the rainwater and sewage diversion construction process, a new drainage pipeline is not additionally arranged on the outer vertical face of a wall body, the roof structure is not damaged, use of a balcony by residents is not affected, and only a small pipeline is additionally arranged in a sewer pipeline of an original building, so that the rainwater and the balcony can be drained conveniently. The washing sewage is discharged into the sewage pipe network through the original pipeline, and the rainwater on the roof is discharged into the rainwater pipe network through the small pipeline, so that the problem that the balcony sewage and the roof rainwater are difficult to distribute is fundamentally solved. The device can be applied to rainwater and sewage diversion reconstruction projects of old communities.

Description

Technical field

[0001] The utility model relates to the field of rooftop sewer pipe reconstruction in a newly added rainwater and sewage diversion reconstruction project of an already built residential area. Background Art

[0002] A particularly challenging issue encountered during the implementation of the rainwater-sewage separation project was that some rooftop drainage systems routed rainwater through balconies into the underground pipe network. Since many homes have washing machines on their balconies, the discharge from these pipes wasn't just rainwater, but a mixture of rainwater and laundry detergent—sewage. Separating rainwater and laundry water for separate drainage required re-plumbing. However, no online information was available regarding this re-plumbing plan. At the renovation site, re-plumbing not only required adding another pipe, but also presented a greater challenge. Often, this new pipe would pass through balconies or indoor spaces. This impeded the implementation of the rainwater-sewage separation plan when residents refused to cooperate. When construction workers were prevented from entering, a common solution was to install a separate drainage pipe on the roof, allowing rainwater to flow through this new pipe into the ground-level stormwater network. However, the drawback of this alternative drainage method was that the new pipe wasn't located at the lowest point on the roof, and this location could easily lead to water accumulation on the roof. When water accumulates on the roof, it can easily lead to leaks. To address this, some practices involve re-leveling the roof with cement. However, re-leveling with cement also presents challenges. Older houses have limited load capacity, which can easily lead to leaks. Utility Model Content

[0003] In order to solve the deficiencies existing in the construction process of the current rainwater and sewage diversion project, the utility model provides a solution for rainwater and sewage diversion without adding new pipes in addition to the original sewer pipes.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A small pipe was installed in the existing building's sewer system. Its upper end connected to the rooftop rainwater outlet and its lower end to the ground-level rainwater network. Rainwater flowed through this small pipe into the rainwater network, while wastewater from the washing machine continued to flow through the existing pipe and into the sewage network. The downside of this method was that there was no odor discharge pipe, which caused a strong odor on the balcony.

[0006] To separate laundry wastewater and rooftop rainwater from the same pipe and prevent odors from accumulating on the balcony, the present invention features a rainwater-sewage diversion joint. A small pipe first connects to the diversion joint, then passes through it and the existing building sewer pipe, ultimately connecting to the rooftop rainwater outlet. The diversion joint consists of two upward and downward spigots on a board separated at both ends. The downward spigot connects to the small pipe and, together with the existing building sewer pipe above the diversion joint, forms a channel for rainwater to flow down. The upward spigot connects to the odor exhaust pipe, discharging odors into the air. The downward spigot is deeper, allowing for the use of a telescopic sleeve during construction. To secure the rainwater pipe to the existing sewer pipe, the present invention features a hook with a special-shaped long handle at the end of the thread. The shape of the handle differs from the threaded shape of the handle, and this difference in shape determines the hook's bending direction, facilitating construction. To ensure the hook is securely fixed to the existing sewer pipe, the utility model features a long, rounded-bottom washer, ensuring screws are tightened and the pipe is sealed. To effectively filter debris and prevent it from clogging small pipes after passing through the grille, the utility model features a relatively large hole in the filter grille. The odor exhaust pipe passes through this hole, ensuring there is no significant gap between the filter grille and the odor exhaust pipe.

[0007] When the original sewer pipe does not fall vertically but falls in a curved manner, the curved section of the rainwater pipe is changed into a hose. During construction, first let the rope with a float flow down with the water, and then use the rope to pull the hose to a position where drainage can be achieved.

[0008] When rainwater and sewage in other places also have the problem of mixed discharge similar to that on the balcony, the utility model can also be used to solve the problem of rainwater and sewage separation.

[0009] During heavy rains, rooftops can briefly accumulate water. The primary cause of this accumulation isn't a small drain pipe, but rather debris blocking the drain outlet. Considering the commonly installed 110mm PVC sewer pipe, even a three-story building has a drop of ten meters. With a ten-meter drop, the flow rate of the 110mm pipe is incredibly high, making it impossible for water to accumulate on the roof. Even 32mm or 40mm PVC pipes, if unobstructed, will have a sufficient flow rate to prevent water from accumulating on the roof when the drop reaches ten meters. Placing 32mm or 40mm PVC pipes inside a 110mm PVC pipe will leave enough space for the washing machine to drain.

[0010] The key to reducing the diameter of the stormwater pipe without accumulating water on the roof is to ensure that the water inlet is not blocked. To achieve this, it is necessary to increase the area of the filter screen, increase the density of the filter grille, and increase the height of the filter grille.

[0011] The beneficial effects of the present invention are: compared with the existing solutions, the present invention has the following advantages: no new pipes are added to the facade of the wall, the overall appearance of the community is not affected, the original pipe network layout is not changed, the owner's balcony is not affected, the roof structure is not damaged, and rainwater and sewage are 100% separated. In addition, the construction difficulty is small and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the current mixed flow of rainwater and sewage on the balcony.

[0014] Figure 2 It is a schematic diagram of rainwater and sewage diversion in an odorless exhaust pipe.

[0015] Figure 3 This is a schematic diagram of the separation of rainwater and sewage on the balcony.

[0016] Figure 4 It is a loose arrangement diagram of pipes and joints.

[0017] Figure 5 It is a tight assembly drawing of pipes and joints.

[0018] Figure 6 This is a real-time map of rainwater and sewage diversion.

[0019] Figure 7 This is a picture of the zenith filter.

[0020] Figure 8 This is a diagram of the combination of filter and exhaust pipe.

[0021] Figure 9 This is a diagram of the combination of pipe surface gasket and hook.

[0022] Figure 10 This is a diagram of the tube surface gasket.

[0023] Figure 11 This is a diagram of fixing the rainwater pipe hook.

[0024] Figure 12 It is a cross-sectional view of the rainwater and sewage diversion joint.

[0025] Figure 13 This is a top view of the rainwater and sewage diversion joint.

[0026] Figure 4 Middle: 1. is the upper section of the original sewer pipe, 2. is the odor exhaust pipe, 3. is the PVC direct, 4. is the rainwater and sewage diversion joint, 5. is the rainwater sewer pipe, 6. is part of the telescopic sleeve, 7. is the lower section of the original sewer pipe. Figure 11 Chinese: 8. It has a special-shaped long handle. DETAILED DESCRIPTION

[0027] Example 1: Press Figure 3 Carry out rainwater and sewage diversion construction. Remove the filter grille at the original drainage outlet on the roof, cut off the original sewer pipe about one to two meters from the top floor ceiling, and remove a small section of the pipe. Connect a 32mm or 40mm PVC water supply pipe, insert the pipe from the roof into the original sewer pipe, and insert it to the ground. In the middle section of the water supply pipe, use Figure 11 The rainwater pipe hook shown in the figure is pressed Figure 9 The method is to fix it on the lower section 7 of the original sewer pipe. Figure 6 As shown, the telescopic sleeve 6 is put on the place where the original sewer pipe is cut off, that is, the lower section 7 of the original sewer pipe. The upper end of the telescopic sleeve 6 is connected to the rainwater and sewage diversion joint. Figure 12 Connection, rainwater and sewage diversion joint Figure 12 The lower pipe opening is put on the rainwater sewer pipe 5, and the rainwater and sewage diversion joint Figure 12 Insert the odor exhaust pipe 2 into the intubation port at the upper end. Figure 8 As shown, the odor exhaust pipe 2 is about 15 cm higher than the filter grille. Figure 12 The upper end is connected to the PVC directly 3, which is connected to the upper section 1 of the original sewer pipe. Finally, adjust the position of the telescopic sleeve 6, tighten it, and press Figure 8 As shown, put on the ceiling filter and fix the ceiling filter with cement or steel nails to complete the connection process.

[0028] For easy operation, rainwater pipe hook Figure 11 At the end of the hook, a 8 to 10 cm long special-shaped handle 8 is set. The special-shaped handle 8 uses its shape to indicate the bending direction of the hook, which is convenient for hooking the rainwater pipe during construction. After hooking the rainwater pipe, tighten the nut together with the pipe surface gasket to fix the rainwater downpipe 5 on the original downpipe lower section 7. Finally, the special-shaped handle 8 that fixes the rainwater pipe hook is sawed off, and the following is obtained: Figure 9 Fixed effects shown.

[0029] To ensure that there is no water accumulation on the ceiling, the area of the ceiling filter should be no less than 35*35 cm, the side length of the filter hole should be no more than 0.5 cm, and the filter should be suspended at least 5 cm below.

[0030] A vortex can't possibly reach a depth of one or two meters. When the top end of a 32mm or 40mm PVC water pipe is one to two meters away from the grilled drain outlet, that is, when a meter or two of water has accumulated in the original sewer pipe above the rainwater-sewage diversion joint, the smaller pipe, despite its small size, can deliver a significant flow rate. Preventing rooftop water accumulation, not the size of the sewer pipe, is the key to preventing floor drains from becoming blocked.

[0031] If the original sewer pipe is vertically downward without any bends in the middle, then the PVC pipe can reach the ground directly, and then lead rainwater into the rainwater pipe network and sewage into the sewage pipe network.

[0032] Example 2: Figure 2 As shown, the rooftop rainwater outlet is connected only to a small pipe, not to the original building's sewer pipe. This allows all rooftop rainwater to flow through the small pipe into the ground-level drainage network, while laundry wastewater is still discharged through the original pipe. This embodiment has the advantage of simplicity, but the disadvantage is that the balcony can smell bad. The fixing of the small pipe is exactly the same as in Example 1.

[0033] Example 3: If the original sewer pipe is not straight but has a bend in the middle, use a rigid plastic pipe for the vertical section and a flexible plastic pipe for the curved section. To guide the flexible pipe, dig the ground, find a drain ditch, and allow a rope with a float to flow underground with the water. Use this rope to pull the flexible pipe and guide it to the stormwater network. The rigid pipe section is installed in the same way as in Example 1.

Claims

1. A device for separately draining balcony laundry wastewater and rooftop rainwater, comprising a drain outlet, a filter grille, and a downpipe. The filter grille is located at the drain outlet on the roof, and is characterized in that: A small pipe is installed in the sewer pipe of the original building. The upper end of the small pipe is connected to the rainwater drainage outlet on the roof, and the lower end is connected to the ground rainwater pipe network.

2. The device for separately draining balcony laundry wastewater and rooftop rainwater according to claim 1 is characterized in that: The small pipe is connected to the rainwater and sewage diversion joint, and the small pipe is connected to the rainwater drainage outlet on the roof through the rainwater and sewage diversion joint and the original building sewer pipe.

3. The device for separately draining balcony laundry wastewater and rooftop rainwater according to claim 2 is characterized in that: A hole is left in the filter grille, and the odor exhaust pipe passes through the hole of the filter grille, and the odor exhaust pipe is higher than the filter grille; The rainwater and sewage diversion joint is provided with two upward and downward sockets. The upward socket of the rainwater and sewage diversion joint is inserted into the odor exhaust pipe, and the downward socket of the rainwater and sewage diversion joint is connected to the small pipe.

4. The device for separately draining balcony laundry wastewater and rooftop rainwater according to claim 2 is characterized in that: The rainwater and sewage diversion joint is composed of two sockets facing upward and downward respectively on a board with upper and lower ends isolated.

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