Automatic switching device for clean and contaminated water diversion
By designing an automatic switching device for separating clean and wastewater, and using a float and rope mechanism to control the sewage pipe, combined with a screen plate to settle impurities, the problem of direct sewage discharge into rivers has been solved. This device achieves automatic separation and sedimentation of sewage and rainwater, reducing river pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山西恒瑞昆新材料技术有限公司
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-26
AI Technical Summary
The lack of effective wastewater and rainwater diversion devices in existing technologies leads to wastewater from washing the ground being directly discharged into rivers, causing pollution.
An automatic switching device for clear and wastewater diversion was designed. Wastewater and rainwater are diverted to different pools through the overflow outlet. The opening and closing of the sewage pipe is controlled by a float ball and pull rope mechanism. Combined with the screen plate to settle impurities, automatic diversion is achieved.
It achieves automatic separation of sewage and rainwater, reduces river pollution, ensures that clean water enters the river, and impurities settle in the sewage pond, avoiding direct discharge of pollution.
Smart Images

Figure CN224281527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewage and rainwater diversion technology, specifically to an automatic switching device for separating clean and sewage. Background Technology
[0002] Rainwater can wash the ground, especially right after it rains. The water that washes the ground becomes sewage with more impurities. If it is discharged directly into the river, it will pollute the river. However, the rainwater that has finished washing the ground has fewer impurities and can be discharged into the river to replenish the river.
[0003] There are currently no devices in the technology that can separate sewage and rainwater; they are all discharged directly into rivers through drainage ditches, causing pollution to the rivers, and this needs to be improved. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the above difficulties and provide an automatic switching device for separating wastewater and rainwater that can automatically separate wastewater from water used for washing the ground.
[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an automatic switching device for clear water and sewage diversion, including a device body, wherein the device body includes a clear water tank and a sewage tank connected through an overflow port;
[0006] The sewage tank is provided with an inlet pipe that matches the overflow outlet on the side away from the clear water tank. A detachable screen plate is provided in the sewage tank near the overflow outlet. A boss is provided at the bottom of the sewage tank, and a storage space for accommodating impurities is formed between the boss and the sewage tank.
[0007] The protrusion is provided with a sewage pipe extending to the bottom of the sewage tank, and the bottom of the clear water tank is provided with a drain pipe;
[0008] The boss is equipped with a switching device that cooperates with the water inlet pipe and the overflow port and can control the opening and closing of the sewage pipe;
[0009] The switching device includes a first ear on one side of the boss, a second ear hinged to the first ear, a connecting rod on the second ear, a cover plate covering the drain pipe at one end of the connecting rod, a pull rope at the other end, a float ball cooperating with the inlet pipe and the overflow port at the other end of the pull rope, a third ear on the boss, a fourth ear on the connecting rod, and springs sleeved on the third and fourth ears.
[0010] As an improvement, the sewage tank is provided with a rectangular frame surrounding the sewage tank, and the screen plate is placed on the rectangular frame.
[0011] As an improvement, the screen plate is provided with a notch to accommodate the pull rope.
[0012] As an improvement, the inlet pipe is extended into the sewage tank.
[0013] As an improvement, the cover plate is provided with a soft pad that can seal the drain pipe.
[0014] The advantages of this utility model compared with the prior art are as follows:
[0015] 1. The inlet pipe can divert water to the sewage tank. Sewage that has just rained will enter the sewage tank for storage and sedimentation. Rainwater that overflows from the sewage tank will enter the clear water tank and be discharged into the river through the drain pipe.
[0016] 2. After the sewage tank overflows, the float floats in the sewage tank and is flushed into the clear water tank by the water in the inlet pipe. The float drives the connecting rod to rotate through the pull rope. The connecting rod compresses the spring, so that the cover plate closes on the sewage pipe to prevent sewage from being discharged and to allow clear water to continuously enter the clear water tank.
[0017] 3. The screen plate can reduce the disturbance of the sewage in the sewage tank by the incoming water after the sewage tank is full, so that the impurities in the sewage can settle into the storage space. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .
[0019] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .
[0020] Figure 3 This is a top view of the structure of this utility model.
[0021] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure in cross-section at point AA.
[0022] As shown in the figure: 1. Main body of the device; 2. Overflow port; 3. Clear water tank; 4. Sewage tank; 5. Inlet pipe; 6. Screen plate; 7. Boss; 8. Storage space; 9. Sewage pipe; 10. Drain pipe; 11. Switching device; 12. First ear; 13. Second ear; 14. Connecting rod; 15. Cover plate; 16. Pull rope; 17. Float; 18. Third ear; 19. Fourth ear; 20. Spring; 21. Rectangular frame; 22. Notch; 23. Soft pad. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example 1
[0024] Combined with appendix Figure 1-4 The automatic switching device for clear water and sewage diversion includes a device body 1, which includes a clear water tank 3 and a sewage tank 4 connected through an overflow port 2.
[0025] The sewage tank 4 is provided with an inlet pipe 5 that cooperates with the overflow port 2 on the side away from the clear water tank 3. A detachable screen plate 6 is provided in the sewage tank 4 near the overflow port 2. The screen plate 6 can reduce the disturbance of the sewage in the sewage tank 4 by the incoming water and facilitate the sedimentation of impurities in the sewage. A boss 7 is provided at the bottom of the sewage tank 4. A storage space 8 for accommodating impurities is formed between the boss 7 and the sewage tank 4.
[0026] The boss 7 is provided with a sewage pipe 9 extending to the bottom of the sewage tank 4, and the bottom of the clear water tank 3 is provided with a drain pipe 10.
[0027] The boss 7 is equipped with a switching device 11 that cooperates with the water inlet pipe 5 and the overflow port 2 and can control the opening and closing of the sewage pipe 9.
[0028] When it rains, the rainwater that washes the ground enters the sewage tank 4 through the inlet pipe 5. The sewage pipe 9 at the bottom of the sewage tank 4 has a small diameter and drains slowly, causing the sewage level in the sewage tank 4 to rise above the screen plate 6. The switching device 11 then works to block the sewage pipe 9. The rainwater that comes in through the inlet pipe 5 is then guided through the overflow port 2 into the clear water tank 3 and discharged into the river through the drain pipe 10 at the bottom of the clear water tank 3.
[0029] After the water inlet pipe 5 stops supplying water, the switching device 11 resets, and the water in the sewage tank 4 is slowly discharged through the sewage outlet pipe 9. The impurities in the sewage settle between the sewage tank 4 and the boss 7. Example 2
[0030] Combined with appendix Figure 4 The switching device 11 includes a first ear 12 located on one side of the boss 7, a second ear 13 hinged to the first ear 12, a connecting rod 14 on the second ear 13, a cover plate 15 covering the drain pipe 9 at one end of the connecting rod 14, and a pull rope 16 at the other end, with a float ball 17 cooperating with the water inlet pipe 5 and the overflow port 2 at the other end of the pull rope 16, a third ear 18 on the boss 7, and a fourth ear 19 on the connecting rod 14, with springs 20 sleeved on the third ear 18 and the fourth ear 19.
[0031] The cover plate 15 is provided with a soft pad 23 that can seal the sewage pipe 9.
[0032] When the sewage tank 4 overflows, the float 17 floats up. The water coming in from the inlet pipe 5 impacts the float 17, which pulls the pull rope 16. The pull rope 16 drives the connecting rod 14 to rotate around the hinge point of the first ear 12 and the second ear 13. The spring 20 contracts, causing the cover plate 15 and the soft pad 23 to cover the sewage pipe 9 and block it. The water coming in from the inlet pipe 5 will enter the clear water tank 3 and be discharged into the river through the drain pipe 10. When the inlet pipe 5 stops supplying water, the float 17 stops pulling the pull rope 16, the spring extends, and the cover plate 15 and the soft pad 23 detach from the sewage pipe 9. The sewage in the sewage tank 4 can then be discharged slowly.
[0033] The sewage tank 4 is provided with a rectangular frame 21 surrounding the sewage tank 4, and the screen plate 6 is placed on the rectangular frame 21 to support the screen plate 6.
[0034] The screen plate 6 is provided with a notch 22 to accommodate the pull rope 16, which facilitates the movement of the pull rope 16.
[0035] The inlet pipe 5 extends into the sewage tank 4. After the sewage tank 4 overflows, the water in the inlet pipe 5 can quickly enter the clear water tank 3.
[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.
Claims
1. An automatic switching device for separating clean and wastewater, comprising a main body, characterized in that: The main body of the device includes a clear water tank and a sewage tank connected by an overflow outlet; The sewage tank is provided with an inlet pipe that matches the overflow outlet on the side away from the clear water tank. A detachable screen plate is provided in the sewage tank near the overflow outlet. A boss is provided at the bottom of the sewage tank, and a storage space for accommodating impurities is formed between the boss and the sewage tank. The protrusion is provided with a sewage pipe extending to the bottom of the sewage tank, and the bottom of the clear water tank is provided with a drain pipe; The boss is equipped with a switching device that cooperates with the water inlet pipe and the overflow port and can control the opening and closing of the sewage pipe; The switching device includes a first ear on one side of the boss, a second ear hinged to the first ear, a connecting rod on the second ear, a cover plate covering the drain pipe at one end of the connecting rod, a pull rope at the other end, a float ball cooperating with the inlet pipe and the overflow port at the other end of the pull rope, a third ear on the boss, a fourth ear on the connecting rod, and springs sleeved on the third and fourth ears.
2. The automatic switching device for separating clean and wastewater according to claim 1, characterized in that: The sewage tank is provided with a rectangular frame surrounding the sewage tank, and the screen plate is placed on the rectangular frame.
3. The automatic switching device for separating clean and wastewater according to claim 1, characterized in that: The screen plate has a notch for accommodating the pull rope.
4. The automatic switching device for separating clean and wastewater according to claim 1, characterized in that: The inlet pipe extends into the sewage tank.
5. The automatic switching device for separating clean and wastewater according to claim 1, characterized in that: The cover plate is equipped with a soft pad that can seal the sewage pipe.