Rain sewage pipeline control gate
By designing control gates for rainwater and sewage pipelines and utilizing hoists and wedge structures to achieve the switching of rainwater and sewage merging and separation, the problem of excessive pressure in sewage treatment plants in existing technologies has been solved, and treatment costs have been reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG HUAXIN ENVIRONMENTAL ENG EQUIP
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-22
Smart Images

Figure CN224266404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gate technology, specifically to a control gate for rainwater and sewage pipelines. Background Technology
[0002] Currently, urban stormwater and sewage are handled using either combined or separate sewer systems. While combined sewer systems reduce the cost of urban pipe network construction, they increase the pressure on urban sewage treatment plants and raise the investment and operating costs of sewage treatment facilities. To reduce the sewage treatment pressure on sewage treatment plants, control gates are added to the combined stormwater and sewage pipes. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a control gate for rainwater and sewage pipelines, addressing the shortcomings of the prior art.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A stormwater and sewage pipe control gate includes a gate panel, a gate frame, and a gate opener. The gate opener is located at the top, with a screw threaded through its center. The gate frame is installed at the pipe opening of the stormwater and sewage pipe, and guide rails are installed on both sides of the gate frame. The gate panel slides between the guide rails, and the sliding of the gate panel realizes the switching between stormwater and sewage pipes, controlling the initial combined flow of stormwater and sewage and the later separation of stormwater and sewage. The upper end of the gate panel is connected to the bottom of the screw. A wedge seat is installed on the guide rail of the gate panel, and an upper wedge block is installed at the bottom of the wedge seat. A lower wedge block is installed on the side of the gate panel, and the upper and lower wedge blocks are engaged by a wedge surface. A sealing strip is installed on the side of the gate frame.
[0006] Furthermore, the guide rail has a guide groove machined on its side, and the door panel has a guide edge machined on its side, with the guide edge sliding within the guide groove.
[0007] Furthermore, a connecting seat is machined on the upper end of the door panel, a pin is inserted inside the connecting seat, the bottom of the screw is connected to the pin, and a cotter pin is provided on the side of the pin.
[0008] Furthermore, the wedge seat is installed at the inlet of the rainwater and sewage pipe.
[0009] Compared with the prior art, the present invention provides a stormwater and sewage pipeline control gate that controls the opening and closing of combined stormwater and sewage pipelines, solves the problems of combined and separate stormwater and sewage, reduces the pressure on sewage treatment plants, and lowers the treatment costs of sewage treatment plants. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2This is a schematic diagram of the connection between the door panel and the guide rail of this utility model;
[0012] Figure 3 yes Figure 2 Sectional view at point AA;
[0013] Figure 4 yes Figure 2 Sectional view at point BB;
[0014] Figure 5 yes Figure 2 Sectional view at CC;
[0015] Figure 6 This is a diagram showing the usage status of the gate of this utility model;
[0016] Figure 7 This is a schematic diagram of the connection between the sewage inlet pipe and the rainwater and sewage discharge pipe of this utility model;
[0017] Among them, 1. door panel, 2. door frame, 3. hoist, 4. screw, 5. guide rail, 6. guide groove, 7. guide edge, 8. pin, 9. wedge seat, 10. upper wedge block, 11. lower wedge block, 12. sealing strip, 13. rainwater and sewage mixing well, 14. sewage inlet pipe, 15. rainwater inlet pipe, 16. rainwater and sewage discharge pipe, 17. rainwater discharge pipe, 18. bypass pipe. Detailed Implementation
[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below.
[0019] like Figures 1-5 As shown, a stormwater and sewage pipeline control gate includes a gate panel 1, a gate frame 2, and a gate hoist 3. The gate hoist 3 is located at the top, and a screw 4 passes through the middle of the gate hoist 3. The gate hoist 3 is an existing device. A nut is installed inside the gate hoist 3. The rotation of the nut drives the screw 4 to rise and fall. The gate frame 2 is installed at the pipe opening of the stormwater and sewage pipeline. Guide rails 5 are installed on both sides of the gate frame 2. The gate panel 1 slides between the guide rails 2. The upper end of the gate panel 1 is connected to the bottom of the screw 4. The guide rails 5 have guide grooves 6 machined on their sides, and the gate panel 1 has guide edges 7 machined on its sides. The guide edges 7 slide within the guide grooves 6. A connecting seat is machined at the upper end of the gate panel 1, and a pin 8 passes through the connecting seat. The bottom of the screw 4 is connected to the pin 8, and a cotter pin is provided on the side of the pin 8.
[0020] A wedge seat 9 is installed on the guide rail 5. The wedge seat 9 is installed at the pipe opening of the rainwater and sewage pipe. An upper wedge block 10 is installed at the bottom of the wedge seat 9. A lower wedge block 11 is installed on the side of the door panel 1. The upper wedge block 10 and the lower wedge block 11 are engaged by a wedge surface. A sealing strip 12 is installed on the side of the door frame 2. When the wedge surfaces of the upper wedge block 10 and the lower wedge block 11 are engaged, the door panel 1 presses the sealing strip 12 to seal the door frame 2.
[0021] like Figure 6 and Figure 7 As shown, a sewage inlet pipe 14 and a rainwater inlet pipe 15 are arranged vertically side-by-side on one side of the stormwater and sewage mixing well 13, and a stormwater and sewage discharge pipe 16 and a rainwater discharge pipe 17 are arranged vertically side-by-side on the other side. A hoist 3 is installed on the stormwater and sewage mixing well 13, and controls the opening and closing of the pipe openings of the sewage inlet pipe 14, the rainwater inlet pipe 15, the stormwater and sewage discharge pipe 16, and the rainwater discharge pipe 17 via their respective gate plates 1. At the beginning of heavy rain, the hoist 3 controls the gate plate 1 to open the sewage inlet pipe 14, the rainwater inlet pipe 15, and the stormwater and sewage discharge pipe 16. The gate valve 3 closes the stormwater inlet pipe 14 and the stormwater discharge pipe 15, allowing sewage and rainwater to enter the stormwater discharge pipe 16 and be treated at the sewage treatment plant. In the later stages of heavy rain, due to the reduction of silt and debris in the rainwater, the gate valve 3 controls the gate panel 1 to close the sewage inlet pipe 14 and the stormwater discharge pipe 15. Sewage in the sewage inlet pipe 14 enters the stormwater discharge pipe 15 through the bypass pipe 18. The gate valve 3 opens the stormwater inlet pipe 15 and the stormwater discharge pipe 17, allowing rainwater to flow from the stormwater inlet pipe 15 into the stormwater discharge pipe 17 and be discharged into the river.
[0022] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.
Claims
1. A control gate for rainwater and sewage pipelines, characterized in that: The device includes a door panel, a door frame, and a gate opener. The gate opener is located at the top and has a screw rod running through its center. The door frame is installed at the inlet of the rainwater and sewage pipes. Guide rails are installed on both sides of the door frame, and the door panel slides between the guide rails. The sliding of the door panel realizes the switching between the rainwater and sewage pipes, controlling the initial rainwater and sewage merging and the later rainwater and sewage separation. The upper part of the door panel is connected to the bottom of the screw rod. A wedge seat is installed on the guide rail of the door panel, and an upper wedge block is installed at the bottom of the wedge seat. A lower wedge block is installed on the side of the door panel, and the upper and lower wedge blocks are engaged by a wedge surface. A sealing strip is installed on the side of the door frame.
2. A stormwater and sewage pipeline control gate according to claim 1, characterized in that: The guide rail has a guide groove on its side and a guide edge is machined on its side, with the guide edge sliding within the guide groove.
3. A stormwater and sewage pipeline control gate according to claim 1, characterized in that: A connecting seat is machined on the upper end of the door panel, and a pin is inserted inside the connecting seat. The bottom of the screw is connected to the pin, and a cotter pin is provided on the side of the pin.
4. A stormwater and sewage pipeline control gate according to claim 1, characterized in that: The wedge seat is installed at the inlet of the rainwater and sewage pipe.