Rain and sewage diversion mechanism for municipal engineering

By designing a rainwater and sewage separation mechanism for municipal engineering projects, using filter screens to intercept solid debris and separate rainwater and sewage during heavy rain, the problems of pipe blockage and excessive load on sewage treatment plants have been solved, achieving efficient sewage treatment and rainwater resource utilization.

CN224199994UActive Publication Date: 2026-05-05TIANJIN ZHONGJI CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN ZHONGJI CONSTR GRP CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing technologies, sewage contains a lot of solid debris, which can cause pipe blockage. In addition, traditional drainage systems mix rainwater and sewage, which can lead to excessive load on sewage treatment plants and waste of rainwater resources.

Method used

A stormwater and sewage separation mechanism for municipal engineering was designed, including a sewage downstream frame, a downstream traction sleeve, a filter screen sleeve, and a buffer pipe. The filter screen sleeve intercepts solid debris and separates rainwater and sewage during heavy rain, while the buffer pipe reduces drainage pressure.

Benefits of technology

It improves the convenience of sewage cleaning, reduces pipe blockage, lowers the load on sewage treatment plants and reduces the waste of rainwater resources, and ensures the stable operation of the drainage system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of municipal engineering, and discloses a municipal engineering rain and sewage diversion mechanism which comprises a sewage downward flowing frame used for water flow transmission, a sewage discharge pipe is fixedly connected to the middle of the bottom end of the sewage downward flowing frame, and a downward flowing traction sleeve is fixedly connected to the interior of the sewage downward flowing frame. A lower-row conveying frame is fixedly connected to the bottom end of the downward-flow traction sleeve, a plurality of outer-row notches are formed in the periphery of the outer portion of the lower-row conveying frame, a filter screen sleeve is arranged on the inner side of the lower-row conveying frame, a plurality of limiting notches are formed in the outer portion of the filter screen sleeve, and an upward-turning lifting assembly is installed in the lower-row conveying frame. Therefore, sewage and sundries can be cleaned. According to the device, the sundries cleaning convenience of the device is improved, the blockage possibility of lower drainage is reduced, the pressure of drainage in rainy days can be further reduced, and the drainage effect of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of municipal engineering, and in particular to a rainwater and sewage separation mechanism for municipal engineering. Background Technology

[0002] Municipal infrastructure refers to various buildings, structures, and equipment set up within the planned construction area of ​​urban areas and towns (townships) to provide residents with paid or free public goods and services based on government responsibility and obligations. The construction of various public infrastructure supporting urban life falls under the category of municipal engineering. Examples include common projects such as urban roads, bridges, subways, underground pipelines, tunnels, waterways, rail transit, sewage treatment, and garbage disposal. It also includes various pipelines closely related to daily life: rainwater, sewage, water supply, greywater, electricity (outside the designated area), telecommunications, heating, gas, etc., as well as the construction of squares and urban green spaces.

[0003] Currently, when diverting sewage, the sewage contains a lot of solid debris, which can accumulate inside the pipes, easily causing blockages, affecting normal water flow, and causing water accumulation. At the same time, traditional drainage systems often mix rainwater and sewage, leading to excessive load on sewage treatment plants and waste of rainwater resources. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rainwater and sewage separation mechanism for municipal engineering, which improves the convenience of debris cleaning and the drainage effect of the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A municipal engineering stormwater and sewage separation system includes;

[0007] A sewage downstream frame for water flow transmission has a sewage discharge pipe fixedly connected to the middle of its bottom end. A downstream traction sleeve is fixedly connected inside the sewage downstream frame, and a downstream transmission frame is fixedly connected to the bottom end of the downstream traction sleeve. Multiple external discharge slots are opened around the outside of the downstream transmission frame. A filter screen sleeve is provided on the inside of the downstream transmission frame, and multiple limiting slots are opened on the outside of the filter screen sleeve. An upward lifting component is installed inside the downstream transmission frame to clean sewage debris.

[0008] A diversion filter frame for downward flow at the top of the sewage downflow frame, wherein a support mounting frame is fixedly connected to the upper side of the inner wall of the sewage downflow frame, and a diversion and discharge assembly is installed on the outside of the sewage downflow frame to reduce the treatment pressure of rainwater in the sewage treatment plant during rainy days.

[0009] Furthermore, the diversion and discharge assembly includes multiple outflow transmission pipes located outside the sewage discharge frame, with a transfer plate fixedly connected to the bottom end of each outflow transmission pipe and a buffer pipe fixedly connected to the front end of the transfer plate.

[0010] Furthermore, the upward lifting assembly includes a traction threaded rod that rotates inside the lower transmission frame, a traction slider is fixedly connected to the inner side of the filter sleeve, and the external thread of the traction threaded rod is connected to the inner side of the traction slider.

[0011] Furthermore, an outer pull plate is fixedly connected to the top end of the traction threaded rod.

[0012] Furthermore, a plurality of limiting posts are fixedly connected around the inside of the lower transmission frame, and the outer sides of the limiting posts are respectively slidably connected to the inside of the limiting slot.

[0013] Furthermore, the outer sides of the limiting posts are respectively fixedly connected to the inner side of the support mounting frame.

[0014] Furthermore, a baffle plate is fixedly connected to the upper outer side of the traction threaded rod to block the holes in the middle of the diversion filter box.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the sewage is pulled to the inside of the downward discharge transmission frame by the downward traction sleeve. The water flows through the filter screen sleeve, thereby intercepting the solids in the sewage. The outer pull plate is rotated, thereby rotating the traction threaded rod and lifting the filter screen sleeve to the upper side, thereby cleaning the solid debris inside. This improves the convenience of cleaning debris and reduces the possibility of blockage in the downward drainage.

[0017] 2. In this utility model, sewage is discharged to the outside through the sewage pipe, and excessive rainwater will raise the water level inside the sewage discharge frame. When the water level reaches the height of the bottom discharge pipe, the water flows to the lower side and is discharged to the outside through the buffer pipe. The device can further reduce the drainage pressure in rainy weather and improve the drainage effect of the device. Attached Figure Description

[0018] Figure 1 This is an overall diagram of a municipal engineering rainwater and sewage separation mechanism proposed in this utility model;

[0019] Figure 2 This is an internal diagram of a stormwater and sewage separation mechanism for municipal engineering proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4This utility model presents a diagram of the downstream traction sleeve mechanism of a municipal engineering rainwater and sewage separation mechanism.

[0022] Legend:

[0023] 1. Sewage downstream frame; 2. Diversion filter frame; 3. Outer pull plate; 4. Baffle plate; 5. Outer discharge transmission pipe; 6. Sewage discharge pipe; 7. Transfer plate; 8. Buffer pipe; 9. Support mounting frame; 10. Downstream traction sleeve; 11. Limiting post; 12. Traction threaded rod; 13. Traction slider; 14. Downstream transmission frame; 15. Filter screen sleeve; 16. Limiting slot; 17. Outer discharge slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3 This utility model provides an embodiment of a municipal engineering rainwater and sewage separation mechanism, comprising: a sewage downflow frame 1 for water flow transmission; a sewage discharge pipe 6 fixedly connected to the middle of the bottom end of the sewage downflow frame 1; a downflow traction sleeve 10 fixedly connected inside the sewage downflow frame 1; and a downflow transmission frame 14 fixedly connected to the bottom end of the downflow traction sleeve 10. (Refer to...) Figure 4 The lower transmission frame 14 has multiple external discharge slots 17 around its outer perimeter. A filter screen sleeve 15 is provided inside the lower transmission frame 14. Multiple limiting slots 16 are provided outside the filter screen sleeve 15. An upward lifting assembly is installed inside the lower transmission frame 14 to clean up sewage and debris. The upward lifting assembly includes a traction threaded rod 12 that rotates inside the lower transmission frame 14. A traction slider 13 is fixedly connected to the inside of the filter screen sleeve 15. The external thread of the traction threaded rod 12 is threadedly connected to the inside of the traction slider 13. An external pull plate 3 is fixedly connected to the top of the traction threaded rod 12. Multiple limiting posts 11 are fixedly connected around the inside of the lower transmission frame 14. The external parts of the limiting posts 11 are slidably connected to the inside of the limiting slots 16 respectively. The external parts of the limiting posts 11 are fixedly connected to the inside of the support mounting frame 9 respectively.

[0026] In the surface wastewater treatment process, the water first flows downward through multiple slots on the surface of the diversion filter frame 2, and then enters the interior of the downstream traction sleeve 10. The special internal structure of the downstream traction sleeve 10 gathers the wastewater towards the center, and then guides the wastewater into the downstream transmission frame 14. The wastewater then flows directly into the filter screen sleeve 15, and is discharged downward through multiple holes inside it, and finally discharged from the system through multiple external discharge slots 17. During this process, solid debris in the wastewater is trapped inside the filter screen sleeve 15. When it is necessary to clean these debris, the outer pull plate 3 is operated to rotate the traction threaded rod 12. Its external thread interacts with the inner thread of the traction slider 13. At the same time, the cooperation of multiple limiting posts 11 and limiting slots 16 restricts the rotation direction of the filter screen sleeve 15, thereby moving it upward, which facilitates the cleaning of the debris accumulated inside.

[0027] Reference Figure 1 , Figure 2 and Figure 4 A diversion filter frame 2 is used to guide the sewage downflow frame 1 downwards. A support mounting frame 9 is fixedly connected to the upper side of the inner wall of the sewage downflow frame 1. A diversion downflow assembly is installed on the outside of the sewage downflow frame 1 to reduce the treatment pressure of the sewage treatment plant during rainy days. The diversion downflow assembly includes multiple outflow transmission pipes 5 located outside the sewage downflow frame 1. A central turntable 7 is fixedly connected to the bottom end of the outflow transmission pipe 5. A buffer pipe 8 is fixedly connected to the front end of the central turntable 7. A baffle plate 4 is fixedly connected to the upper side of the outer side of the traction threaded rod 12 to block the hole in the middle of the diversion filter frame 2.

[0028] In heavy rain, when the rainfall intensity exceeds the drainage capacity of the sewage pipe 6, a large amount of rainwater will accumulate inside the sewage downflow box 1. As the water level continues to rise to the inlet height of the external discharge transmission pipe 5, the excess water will be guided into the transfer plate 7 through the external discharge transmission pipe 5. Subsequently, the water will be discharged outward through the buffer pipe 8. This diversion mechanism effectively alleviates the pressure on the drainage system during rainy weather and ensures the stable operation of the drainage system.

[0029] Working principle: When treating surface sewage, water flows downward through multiple slots on the surface of the diversion filter frame 2. Sewage enters the interior of the downstream traction sleeve 10. The internal shape of the downstream traction sleeve 10 gathers the sewage inward, thus transferring it to the interior of the downstream transmission frame 14. The sewage also flows directly into the interior of the filter screen sleeve 15 and is discharged downward through multiple holes inside the filter screen sleeve 15. It is discharged downward through multiple external discharge slots 17. Solid debris in the sewage is trapped inside the filter screen sleeve 15. During treatment, the traction threaded rod 12 is rotated by the outer pull plate 3. The external thread of the traction threaded rod 12... The inner thread of the traction slider 13 is touched, and multiple limiting posts 11 are engaged with the limiting slot 16 to restrict the rotation direction of the filter screen sleeve 15, thereby moving the filter screen sleeve 15 upward and cleaning the debris accumulated inside. In heavy rain, the water flows downward. When the speed of the water flow is greater than the speed of the sewage discharge pipe 6, the rainwater accumulates inside the sewage downflow frame 1. When the water level inside the sewage downflow frame 1 reaches the height of the bottom discharge transmission pipe 5, the water flows into the interior of the discharge transmission pipe 5, thereby transmitting the water flow to the interior of the transfer plate 7 and discharging it to the outside through the buffer discharge pipe 8, thereby reducing the pressure of drainage in rainy weather.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A municipal engineering rainwater and sewage separation mechanism, characterized in that, include; A sewage downflow frame (1) for water flow transmission is provided. A sewage discharge pipe (6) is fixedly connected to the middle of the bottom end of the sewage downflow frame (1). A downflow traction sleeve (10) is fixedly connected inside the sewage downflow frame (1). A downflow transmission frame (14) is fixedly connected to the bottom end of the downflow traction sleeve (10). A plurality of outflow slots (17) are opened around the outside of the downflow transmission frame (14). A filter screen sleeve (15) is provided on the inside of the downflow transmission frame (14). A plurality of limiting slots (16) are opened on the outside of the filter screen sleeve (15). An upward lifting component is installed inside the downflow transmission frame (14) to achieve the cleaning of sewage debris. A diversion filter frame (2) is used for the downward flow of the top of the sewage downflow frame (1). A support mounting frame (9) is fixedly connected to the upper side of the inner wall of the sewage downflow frame (1). A diversion and discharge assembly is installed on the outside of the sewage downflow frame (1) to reduce the treatment pressure of rainwater in the sewage treatment plant.

2. The municipal engineering rainwater and sewage separation mechanism according to claim 1, characterized in that: The diversion and discharge assembly includes multiple discharge transmission pipes (5) located outside the sewage discharge frame (1). The bottom end of the discharge transmission pipe (5) is fixedly connected to a transfer plate (7), and the front end of the transfer plate (7) is fixedly connected to a buffer discharge pipe (8).

3. A municipal engineering rainwater and sewage separation mechanism according to claim 1, characterized in that: The upward lifting assembly includes a traction threaded rod (12) that rotates inside the lower transmission frame (14), and a traction slider (13) is fixedly connected to the inner side of the filter sleeve (15). The external thread of the traction threaded rod (12) is connected to the inner side of the traction slider (13).

4. A municipal engineering rainwater and sewage separation mechanism according to claim 3, characterized in that: The top end of the traction threaded rod (12) is fixedly connected to an outer pull plate (3).

5. A municipal engineering rainwater and sewage separation mechanism according to claim 1, characterized in that: The lower transmission frame (14) has multiple limiting posts (11) fixedly connected around its inner circumference, and the outer sides of the limiting posts (11) are respectively slidably connected to the inside of the limiting slots (16).

6. A municipal engineering rainwater and sewage separation mechanism according to claim 5, characterized in that: The outer side of the limiting post (11) is fixedly connected to the inner side of the support mounting frame (9).

7. A municipal engineering rainwater and sewage separation mechanism according to claim 3, characterized in that: A baffle plate (4) is fixedly connected to the upper outer side of the traction threaded rod (12) to block the hole in the middle of the diversion filter frame (2).