Automatic balcony rain and sewage shunting device and method thereof
Through the linkage design of the opener and the magnetic structure, the automatic control of the balcony rainwater and sewage separator is realized, which solves the problem of mixed discharge of rainwater and sewage, reduces construction difficulty and maintenance costs, and is suitable for areas with limited environmental protection and budget.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI ZTEC ENVIRONMENTAL S & T CO LTD
- Filing Date
- 2024-03-06
- Publication Date
- 2026-07-10
AI Technical Summary
In existing technologies, the mixed discharge of rainwater and sewage from balconies leads to environmental pollution and increases the burden on sewage treatment plants. Existing solutions also suffer from problems such as high construction difficulty, high operation and maintenance costs, and a high possibility of misjudgment.
It adopts an in-house opening and closing device and a magnetic structure, and uses gravity and magnetic linkage to automatically identify rainwater and sewage. It achieves automatic diversion through Dn100 rainwater pipe and Dn50 sewage pipe, avoiding the need for power support and reducing equipment complexity and maintenance costs.
It achieves precise and automatic separation of rainwater and sewage, reduces maintenance and operating costs, is suitable for use in areas with unstable power supply or limited costs, avoids equipment failure, and improves management efficiency and environmental protection.
Smart Images

Figure CN117926893B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drainage engineering technology, specifically to an automatic rainwater and sewage separator and its method for balconies. Background Technology
[0002] The current balcony drainage system in residential communities has a significant problem: rainwater and sewage are not effectively separated. This means that wastewater from laundry and rainwater from balconies use the same drainage pipe. This design directly leads to sewage and rainwater mixing together and flowing into urban river basins. This mixed discharge causes serious environmental pollution. Laundry wastewater contains a large amount of surfactants, pigments, fragrances, and other organic substances. When it mixes with rainwater and flows into rivers or other water bodies, it seriously pollutes the water quality, affects the survival of aquatic organisms, and damages the entire ecosystem. In addition, if this mixed discharge is discharged into urban sewage treatment plants, it also increases the burden on these plants, potentially causing them to be unable to process the wastewater in time, paralyzing their operation, and further exacerbating environmental pollution.
[0003] To address the aforementioned problems, three solutions, A, B, and C, currently exist on the market.
[0004] Option A: Use a float valve to separate rainwater and sewage. The float valve connects to the rainwater outlet when the water volume is large and to the sewage outlet when the water volume is small. However, this method only distinguishes between rainwater and sewage based on the water volume, which may lead to misjudgment. Its accuracy is limited. In practical applications, it may be ineffective due to environmental factors or the uncertainty of drainage separation.
[0005] Option B: Use rain gauges to identify sunny and rainy days, and separate rainwater and sewage through electric valves to drain rainwater from the downpipes. This option uses more advanced technology, but it also brings high equipment costs. In addition, due to the involvement of precision equipment such as electric valves, the failure rate is relatively high, and the daily operation and maintenance costs are also relatively high.
[0006] Option C: By installing independent sewage discharge risers and modifying the drainage pipes of each household, rainwater and sewage can be completely separated. Although this option can fundamentally solve the problem of mixed rainwater and sewage, it is more difficult to construct, requiring the modification of drainage pipes for each household. In addition, it may involve a lot of communication and coordination during implementation, so it is quite challenging to implement.
[0007] While the three solutions mentioned above all have certain effects, they also have some drawbacks that limit their large-scale application. To address this issue, an automatic rainwater and sewage diversion device and its method for balconies are designed to better meet practical application needs. Summary of the Invention
[0008] The purpose of this invention is to provide an automatic rainwater and sewage diversion device and method for balconies, in order to solve the problems mentioned in the background art, such as the high difficulty of construction and the relatively high daily operation and maintenance costs.
[0009] To achieve the above objectives, the present invention provides the following technical solution: an automatic rainwater and sewage diversion device for balconies, comprising a housing, a connecting pipe fixed to the right end of the housing, and a DN50 sewage pipe and a DN100 rainwater pipe installed on the rear end face of the housing; a lower stop bar and an upper stop bar are also fixed inside the housing, and a rotatable fixed pulley is connected to the housing via a rotating shaft, the fixed pulley is connected to a steel wire rope, a drain bucket is fixed to one end of the steel wire rope, and a fixing rod is also fixed inside the housing, with a bearing connected to the fixing rod for opening and closing.
[0010] Preferably, the upper surface of the box is provided with a rain collection trough with a sloping bottom, and a water leakage hole is also provided on the box. The water leakage hole is located above the water leakage bucket, and the diameter of the water leakage hole is larger than the diameter of the lower opening of the water leakage bucket. Through the functions of the rain collection trough and the water leakage hole, a basic guarantee can be provided for rainfall measurement, thereby ensuring the normal operation of the device.
[0011] Preferably, the Dn50 sewage pipe is also symmetrically fixed with first magnets at the top and bottom, and the front end face of the first magnet is flush with the front end face of the Dn50 sewage pipe. By limiting the installation position of the first magnet, the sealing of the Dn50 sewage pipe can be guaranteed in the later stage.
[0012] Preferably, the Dn100 rainwater pipe is also symmetrically fixed with second magnets at the top and bottom, and the front end face of the second magnet is flush with the front end face of the Dn100 rainwater pipe. By limiting the installation position of the second magnet, the sealing of the Dn100 rainwater pipe can be guaranteed in the later stage.
[0013] Preferably, the other end of the wire rope is fixed with a ball, and the ball is nested in a groove on the opener and can slide. Through the sliding action between the ball and the opener, a basic guarantee can be provided for the normal rotation of the opener.
[0014] Preferably, the opening and closing device can achieve a lower limit function when in contact with the lower stop lever, and can achieve an upper limit function when in contact with the upper stop lever. Through the action of the lower stop lever and the upper stop lever, the extreme position of the opening and closing device rotation can be limited.
[0015] Preferably, the opening and closing device is rotatably connected to the fixed rod, and the opening and closing device can achieve a sealing effect when in contact with the Dn100 rainwater pipe and the Dn50 sewage pipe. At the same time, the opening and closing device is made of corrosion-resistant plastic. Through the sealing effect of the opening and closing device on the Dn100 rainwater pipe or the Dn50 sewage pipe, a single pipe seal can be achieved, thereby realizing the automatic separation of sewage and rainwater.
[0016] Preferably, the opener is further fixed with a third magnet, and the upper and lower third magnets form magnetic attraction structures with the upper and lower first magnets respectively. The lower third magnet and the upper first magnet of the Dn50 sewage pipe are magnetically repelled. The opener is also fixed with a fourth magnet, and the upper and lower fourth magnets form magnetic attraction structures with the upper and lower second magnets respectively. The lower fourth magnet and the upper second magnet of the Dn100 rainwater pipe are magnetically repelled. At the same time, the rear ends of the fourth and third magnets are flush with the rear end of the opener. Through the above structure, the sealing effect of the opener on the Dn100 rainwater pipe or the Dn50 sewage pipe can be guaranteed.
[0017] Compared with the prior art, the beneficial effects of the present invention are: the automatic rainwater and sewage diversion device for balconies adopts advanced identification technology, which can accurately identify rainwater and sewage under different weather conditions, realize efficient and environmentally friendly rainwater and sewage diversion, and does not require power support, thereby greatly reducing the cost of use and maintenance, and also reducing the possible failures. This is a very practical choice for areas with unstable power supply or limited costs. The device also has the following beneficial effects.
[0018] 1. Automatic Control: The device achieves the separation of rainwater and sewage through automatic control. On sunny days, wastewater enters the rainwater diversion device through the rainwater downpipe, and no liquid enters through the drain hole. At this time, since the Dn100 rainwater pipe is blocked, the Dn50 sewage pipe becomes the only drainage outlet. On rainy days, the initial rainwater enters through the drain hole. Due to the small amount of initial rainwater, it cannot form a large gravity in the drain bucket, so the initial rainwater enters the Dn50 sewage pipe. In the middle and later stages, the rainwater opens the Dn100 rainwater pipe and closes the Dn50 sewage pipe through the gravity of the drain bucket, thus achieving automatic separation of rainwater and sewage. This design enables automated control, improves efficiency and management level.
[0019] 2. Utilization of natural forces: This device utilizes natural forces, such as gravity and the drag of steel wire ropes, to achieve the separation of rainwater and sewage. This design is not only simple and easy to implement, but also environmentally friendly and energy-saving.
[0020] 3. Application of physical principles: This device also applies physical principles, such as the dragging of steel wire ropes and the opening and closing of the gate, to achieve the separation of rainwater and sewage. This design is not only scientific and reasonable, but also innovative.
[0021] 4. Reduced maintenance and operating costs: Compared to electronic devices and intelligent control systems, this device has a simpler design, lower maintenance and operating costs, and is more suitable for large-scale application.
[0022] 5. Linkage control: The rainwater pipe inlet and sewage pipe inlet opener of the present invention adopt linkage control to ensure that one of the devices is in the open state at the same time, avoiding the risk of sewage overflow due to blockage;
[0023] 6. More accurate identification of rain and sunshine: The leak hole is directly connected to the external environment, and the Dn100 rainwater pipe is directly identified from the amount of rainfall to ensure the normal operation of the device. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the front cross-sectional structure of the box body of the present invention;
[0025] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the device of the present invention;
[0026] Figure 3 This is a schematic diagram of the open three-dimensional structure of the Dn100 rainwater pipe of the present invention;
[0027] Figure 4 This is a rear-view three-dimensional structural diagram of the opening and closing device of the present invention;
[0028] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.
[0029] In the diagram: 1. Box body; 101. Rainwater collection trough; 102. Drain hole; 2. Connecting pipe; 3. Dn50 sewage pipe; 4. First magnet; 5. Dn100 rainwater pipe; 6. Second magnet; 7. Lower stop bar; 8. Upper stop bar; 9. Fixed pulley; 10. Steel wire rope; 1001. Ball; 11. Drain bucket; 12. Fixing rod; 13. Opener / closer; 1301. Third magnet; 1302. Fourth magnet. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] Please see Figures 1-5The present invention provides a technical solution: an automatic rainwater and sewage diversion device for balconies, including a housing 1, a connecting pipe 2 fixed to the right end of the housing 1, and a DN50 sewage pipe 3 and a DN100 rainwater pipe 5 installed on the rear end face of the housing 1; a lower stop bar 7 and an upper stop bar 8 are also fixed inside the housing 1, and a rotatable fixed pulley 9 is connected to the housing 1 via a rotating shaft. The fixed pulley 9 is connected to a steel wire rope 10, and a drain bucket 11 is fixed to one end of the steel wire rope 10. A fixing rod 12 is also fixed inside the housing 1, and a gate opener 13 is connected to the fixing rod 12 by a bearing.
[0032] The Dn100 rainwater pipe 5 is symmetrically fixed with second magnets 6, and the front end face of the second magnet 6 is flush with the front end face of the Dn100 rainwater pipe 5; the opening and closing device 13 can achieve a lower limit function when in contact with the lower stop rod 7, and can achieve an upper limit function when in contact with the upper stop rod 8; the opening and closing device 13 is rotatably connected to the fixed rod 12, and can achieve a sealing function when in contact with the Dn100 rainwater pipe 5, and can also achieve a sealing function when in contact with the Dn50 sewage pipe 3. The opening and closing device 13 is made of corrosion-resistant plastic; a third magnet 1 is also fixed on the opening and closing device 13. 301, and the upper and lower third magnets 1301 and the upper and lower first magnets 4 respectively form a magnetic attraction structure, and the lower third magnet 1301 and the upper first magnet 4 of Dn50 sewage pipe 3 are magnetically repelled. The opener 13 is also fixed with a fourth magnet 1302, and the upper and lower fourth magnets 1302 and the upper and lower second magnets 6 respectively form a magnetic attraction structure, and the lower fourth magnet 1302 and the upper second magnet 6 of Dn100 rainwater pipe 5 are magnetically repelled. At the same time, the rear end faces of the fourth magnet 1302 and the third magnet 1301 are flush with the rear end face of the opener 13.
[0033] When using this automatic rainwater and sewage separator for the balcony, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the device is installed, and the connecting pipe 2 is connected to the rainwater riser and the domestic sewage pipe. The Dn50 sewage pipe 3 is connected to the municipal sewage system pipe, and the Dn100 rainwater pipe 5 is connected to the municipal drainage system pipe. When it is a sunny day, under the gravity of the opening and closing device 13, the opening and closing device 13 and the Dn100 rainwater pipe 5 cooperate to achieve a seal. With the magnetic attraction of the fourth magnet 1302 and the second magnet 6, the sealing between the opening and closing device 13 and the Dn100 rainwater pipe 5 can be guaranteed. The opening and closing device 13 contacts the lower stop bar 7 to achieve a limit. At this time, the Dn50 sewage pipe 3 is the opening device. Domestic sewage enters the box 1 through the connecting pipe 2 and is discharged into the municipal sewage system pipe through the Dn50 sewage pipe 3.
[0034] The upper surface of the box 1 is provided with a rainwater collection trough 101 with a sloping bottom structure, and the box 1 is also provided with a water leakage hole 102, which is located above the water leakage bucket 11. At the same time, the diameter of the water leakage hole 102 is larger than the diameter of the lower opening of the water leakage bucket 11. The Dn50 sewage pipe 3 is also symmetrically fixed with first magnets 4, and the front end of the first magnet 4 is flush with the front end of the Dn50 sewage pipe 3. The other end of the wire rope 10 is fixed with a ball 1001, and the ball 1001 is nested in the groove of the opener 13 and can slide.
[0035] When it is raining outside, such as Figures 1-5 As shown, rainwater enters the rainwater collection trough 101 and is collected, then flows into the drain bucket 11 through the drain hole 102. Initially, when rainfall is light, the water entering the drain bucket 11 is slower than the water exiting, failing to create significant gravity. Therefore, the initial rainwater enters the Dn50 sewage pipe 3. Later, when rainfall is heavy, the water entering the drain bucket 11 is faster than the water exiting, causing water to accumulate in the drain bucket 11, increasing its weight. Combined with the action of the wire rope 10 and the fixed pulley 9, this increases the tension on the opening and closing device 13. When the tension exceeds the weight of the opening and closing device 13 and the fourth magnet 1302 and the second... When the magnetic force between magnets 6 is applied, the opening and closing device 13 rotates in conjunction with the sliding action between the ball 1001 and the opening and closing device 13, ensuring the normal rotation of the opening and closing device 13. This causes the opening and closing device 13 to separate from the Dn100 rainwater pipe 5 until the opening and closing device 13 contacts and is positioned with the upper stop bar 8. At this time, in conjunction with the magnetic attraction between the third magnet 1301 and the first magnet 4, the opening and closing device 13 can seal the Dn50 sewage pipe 3, allowing rainwater to be directly discharged into the municipal drainage system pipe through the Dn100 rainwater pipe 5. This achieves the automatic separation of sewage and rainwater, which is the working principle of this balcony rainwater and sewage automatic diversion device.
[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic rainwater and sewage diversion device for balconies, comprising a housing (1), wherein a connecting pipe (2) is fixed to the right end of the housing (1), and a Dn50 sewage pipe (3) and a Dn100 rainwater pipe (5) are installed on the rear end face of the housing (1); characterized in that: The box (1) is also fixed with a lower stop bar (7) and an upper stop bar (8). The box (1) is connected to a rotatable fixed pulley (9) via a rotating shaft. The fixed pulley (9) is connected to a wire rope (10). A water-leaking bucket (11) is fixed to one end of the wire rope (10). A fixing rod (12) is also fixed inside the box (1). A gate opener (13) is connected to the bearing on the fixing rod (12). The upper end face of the box (1) is provided with a rain collection trough (101) with a sloping bottom surface, and the box (1) is also provided with a water leakage hole (102), and the water leakage hole (102) is located above the water leakage bucket (11), and the diameter of the water leakage hole (102) is larger than the diameter of the opening on the lower side of the water leakage bucket (11). The Dn50 sewage pipe (3) is also symmetrically fixed with a first magnet (4) on the top and bottom, and the front end face of the first magnet (4) is flush with the front end face of the Dn50 sewage pipe (3); The Dn100 rainwater pipe (5) is also symmetrically fixed with a second magnet (6) on the top and bottom, and the front end face of the second magnet (6) is flush with the front end face of the Dn100 rainwater pipe (5). The opening and closing device (13) is also fixed with a third magnet (1301), and the upper and lower third magnets (1301) and the upper and lower first magnets (4) respectively form a magnetic attraction structure. The lower third magnet (1301) and the upper first magnet (4) of the Dn50 sewage pipe (3) are magnetically repelled. The opening and closing device (13) is also fixed with a fourth magnet (1302), and the upper and lower fourth magnets (1302) and the upper and lower second magnets (6) respectively form a magnetic attraction structure. The lower fourth magnet (1302) and the upper second magnet (6) of the Dn100 rainwater pipe (5) are magnetically repelled. At the same time, the rear end faces of the fourth magnet (1302) and the third magnet (1301) are flush with the rear end face of the opening and closing device (13). The other end of the wire rope (10) is fixed with a ball (1001), and the ball (1001) is nested in the slot on the opener (13) and can slide. The opening and closing device (13) can achieve the lower limit function when it contacts the lower stop bar (7), and can achieve the upper limit function when it contacts the upper stop bar (8); The opening and closing device (13) is rotatably connected to the fixed rod (12), and the opening and closing device (13) can achieve a sealing effect when it contacts the Dn100 rainwater pipe (5), and can also achieve a sealing effect when it contacts the Dn50 sewage pipe (3). At the same time, the material of the opening and closing device (13) is corrosion-resistant plastic.
2. A method for an automatic rainwater and sewage diversion system for balconies, applied to the automatic rainwater and sewage diversion system for balconies as described in claim 1, characterized in that, The method includes the following steps: When it is a sunny day, under the gravity of the opener (13), the opener (13) and the Dn100 rainwater pipe (5) cooperate to achieve a seal. With the magnetic attraction of the fourth magnet (1302) and the second magnet (6), the lower fourth magnet (1302) and the upper second magnet (6) of the Dn100 rainwater pipe (5) repel each other magnetically, ensuring the sealing between the opener (13) and the Dn100 rainwater pipe (5). The opener (13) contacts the lower stop bar (7) to achieve a limit. The Dn50 sewage pipe (3) is the opening device. Domestic sewage enters the box (1) through the connecting pipe (2) and is discharged into the municipal sewage system pipeline through the Dn50 sewage pipe (3). When it is raining, rainwater is collected in the rainwater collection trough (101) and enters the leaking bucket (11) through the drain hole (102). In the early stages, when the rainfall is light, the water entering the leaking bucket (11) is slower than the water exiting, so it cannot form a large gravity in the leaking bucket (11). Initially, the rainwater enters the Dn50 sewage pipe (3). In the later stages, when the rainfall is heavy, the water entering the leaking bucket (11) is faster than the water exiting, causing water to accumulate in the leaking bucket (11), thus increasing the gravity of the leaking bucket (11). Combined with the action of the wire rope (10) and the fixed pulley (9), the opening and closing device (13) is subjected to tension. When the tension is greater than the gravity of the opening and closing device (13) and the fourth When the magnetic force between the magnet (1302) and the second magnet (6) is applied, the opening device (13) rotates in conjunction with the sliding action between the ball (1001) and the opening device (13) to ensure the normal rotation of the opening device (13), thereby separating the opening device (13) from the Dn100 rainwater pipe (5) until the opening device (13) contacts and is positioned with the upper stop bar (8). At this time, in conjunction with the magnetic attraction between the third magnet (1301) and the first magnet (4), the opening device (13) seals the Dn50 sewage pipe (3), allowing rainwater to be directly discharged into the municipal drainage system pipe through the Dn100 rainwater pipe (5), thus realizing the automatic separation of sewage and rainwater.