Drainage device for river water conservancy project

Abstract

The utility model provides a drainage device for a river water conservancy project, and belongs to the technical field of drainage devices. The conical cover is arranged at the bottom end of the urban drainage pipeline; the two limiting grooves are symmetrically formed in the outer side wall of the conical cover; the semicircular groove is formed in the bottom of the interior of the limiting groove; the rotating rod penetrates through the interior of the limiting groove; the anti-falling rod head is arranged at one end of the rotating rod; the hollow floating ball is arranged at the other end of the rotating rod; the liquid collecting groove is formed in the outer side wall of the hollow floating ball; the drainage groove is formed in the position, close to one side of the limiting groove, of the outer side wall of the conical cover; the hollow floating ball rotates at a high speed in one direction under the impact of downward water flow, garbage in water can be prevented from being adsorbed on the hollow floating ball in cooperation with the impact of the water flow, and it is guaranteed that a part of the ball structure of the hollow floating ball is embedded into an urban drainage pipeline under the action of buoyancy; and gaps generated at the plugging position due to the existence of garbage are avoided.

Description

A drainage device for river water conservancy projects Technical Field

[0001] This utility model belongs to the field of drainage device technology, specifically relating to a drainage device for river water conservancy projects. Background Technology

[0002] Water conservancy projects are a general term for various engineering constructions undertaken to control, utilize, and protect surface and underground water resources and the environment. Urban flood control and drainage projects are one such project. Most urban flood control and drainage channels consist of a single channel. As a result, when encountering extreme weather conditions such as torrential rain, these channels have limited drainage capacity and cannot drain water quickly and effectively.

[0003] Because urban drainage pipes connect directly to rivers, when the river's drainage efficiency is low, water in the river is prone to backflow and enter the city through the urban drainage pipes, causing phenomena such as rainwater backflow into the municipal pipe network, displacement of drainage well covers, and urban flooding, resulting in damage to public property and potential threats to personal safety.

[0004] Therefore, a drainage device for river water conservancy projects is proposed. Summary of the Invention

[0005] This utility model provides a drainage device for river water conservancy projects, the purpose of which is to solve the problems mentioned above.

[0006] This utility model provides a drainage device for a river water conservancy project, including an urban drainage pipe; a conical cover at the bottom of the urban drainage pipe; two limiting grooves symmetrically opened on the outer wall of the conical cover; a semi-circular groove opened at the bottom of the limiting groove; a rotating rod penetrating inside the limiting groove; an anti-detachment rod head at one end of the rotating rod; and a hollow float at the other end of the rotating rod; a liquid collection groove opened on the outer wall of the hollow float; a drainage groove opened on the outer wall of the conical cover near the limiting groove; a flow guide platform on the inner wall of the urban drainage pipe; and a connecting flange at the top of the urban drainage pipe.

[0007] Furthermore, the outer diameter of the rotating rod is smaller than the inner width of the limiting groove, and the rotating rod and the semi-circular groove are adapted to each other; the outer diameter of the anti-drop rod head is larger than the inner width of the limiting groove.

[0008] By adopting the above technical solution, it is ensured that the rotating rod can move within the limiting groove while preventing one end of the rotating rod from falling out of the limiting groove.

[0009] Furthermore, one outer wall of the anti-fall rod head and the outer wall of the conical cover are horizontal;

[0010] By adopting the above technical solution, when the hollow float rotates, the frictional resistance between the anti-fall rod head and the outer wall of the conical cover is reduced, ensuring that the hollow float rotates more smoothly.

[0011] Furthermore, the hollow float has a hollow structure and is filled with air; the hollow float is a polystyrene float.

[0012] By adopting the above technical solutions, the buoyancy of the hollow buoy can be guaranteed, and the damage to the hollow buoy caused by sun and rain can be reduced, thus ensuring the structural integrity of the hollow buoy.

[0013] Furthermore, the top of the flow guide platform is provided with an inclined surface;

[0014] By adopting the above technical solutions, water in urban drainage pipes can be guided to avoid garbage accumulation and blockage.

[0015] Furthermore, the outer diameter of the hollow float is larger than the inner diameter of the urban drainage pipe;

[0016] By adopting the above technical solution, when the hollow buoy floats up due to the buoyancy of the water, part of the hollow buoy can be embedded in the urban drainage pipe, thereby blocking the urban drainage pipe and preventing river water from flowing back into the drainage pipe.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention utilizes a hollow buoy that rotates at high speed in one direction under the impact of downward water flow. This, combined with the impact of the water flow, prevents debris in the water from adhering to the hollow buoy. It ensures that part of the buoy's spherical structure is embedded in the urban drainage pipe under the action of buoyancy, preventing gaps from forming at the sealing point due to the presence of debris. By utilizing the buoyancy of the hollow buoy itself, as well as the guidance of the limiting groove and the conical cover, the urban drainage pipe can be sealed, preventing rainwater from the river from entering the urban drainage pipe and causing backflow, thus avoiding damage to urban public property.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 is a structural schematic diagram of an embodiment of the present utility model;

[0022] Figure 2 is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 3 is a schematic diagram of the combination of the conical cover and the hollow float in an embodiment of the present invention;

[0024] Figure 4 is an enlarged schematic diagram of point A in Figure 1 of the embodiment of this utility model;

[0025] Attached reference numerals: 1. Urban drainage pipe; 2. Conical cover; 3. Limiting groove; 4. Semicircular groove; 5. Rotating rod; 6. Anti-falling rod head; 7. Hollow float; 8. Liquid collection tank; 9. Drainage trough; 10. Flow guide platform; 11. Connecting flange. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Referring to Figures 1-4, this utility model embodiment proposes a drainage device for a river water conservancy project, including an urban drainage pipe 1, a conical cover 2 connected to the bottom end of the urban drainage pipe 1, the conical cover 2 being higher than the normal liquid level in the river, drainage grooves 9 being axially and equally spaced on the outer wall of the conical cover 2, and a connecting flange 11 being provided at the top end of the urban drainage pipe 1.

[0028] Two limiting grooves 3 are symmetrically opened on the outer wall of the conical cover 2 near the drainage channel 9. Semicircular grooves 4 are opened at the bottom and top of the inner sides of both limiting grooves 3, and rotating rods 5 pass through the interior of each limiting groove 3. A hollow float 7 is installed between one end of the two rotating rods 5. The hollow float 7 is a hollow structure filled with air. The hollow float 7 is made of polystyrene to ensure buoyancy and reduce damage from sun and rain, ensuring its structural integrity. The outer diameter of the hollow float 7 is larger than the inner diameter of the urban drainage pipe 1. When the hollow float 7 rises due to water buoyancy, a portion of it can embed into the urban drainage pipe 1, thereby blocking it and preventing river water from flowing back into the urban drainage pipe 1. The other end of the rotating rod 5 is provided with an anti-detachment rod head 6. The outer diameter of the rotating rod 5 is smaller than the inner width of the limiting groove 3, and the rotating rod 5 and the semi-circular groove 4 are compatible. The outer diameter of the anti-detachment rod head 6 is larger than the inner width of the limiting groove 3, which ensures that the rotating rod 5 can move in the limiting groove 3 while preventing one end of the rotating rod 5 from falling out of the limiting groove 3. The outer wall of one side of the anti-detachment rod head 6 is horizontal with the outer wall of the conical cover 2. When the hollow float 7 rotates, the anti-detachment rod head 6 rotates synchronously, reducing the frictional resistance with the outer wall of the conical cover 2, ensuring that the hollow float 7 rotates more smoothly. Seven liquid collection grooves 8 are axially and equally spaced on the outer wall of the hollow float 7. A flow guide platform 10 is provided on the inner wall of the urban drainage pipe 1. The top of the flow guide platform 10 is provided with an inclined surface, which can guide the water in the urban drainage pipe 1 and prevent garbage from accumulating and causing blockage.

[0029] The specific implementation method is as follows: In urban flood control and drainage operations, urban domestic water and rainwater enter the urban drainage pipe 1 through the urban municipal drainage network. The urban drainage pipe 1 discharges water into the river. After entering the urban drainage pipe 1, the water flows downward under the guidance of the guide platform 10 and impacts the hollow float 7. Since the impact point is located at the eccentric position of the hollow float 7, the thrust generated by the water impacting the collection tank 8 causes the hollow float 7 to rotate. Since the rotating rod 5 can rotate in the semi-circular groove 4, the hollow float 7 rotates in one direction. The faster the water in the urban drainage pipe 1 flows downward, the faster the hollow float 7 rotates. Under the continuous impact of the water and the high-speed rotation of the hollow float 7, the garbage in the water will accumulate on the hollow float 7.

[0030] When the river channel cannot drain the water quickly, the liquid level in the river channel rises. After the water in the river channel comes into contact with the hollow float 7, the limit groove 3 limits the rotating rod 5, and the hollow float 7 moves upward under the action of buoyancy. Under the guidance of the inner wall of the conical cover 2, part of the hollow float 7 is embedded in the urban drainage pipe 1, thereby blocking the urban drainage pipe 1 and preventing rainwater in the river channel from entering the urban drainage pipe 1 and causing backflow.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drainage device for river water conservancy projects, characterized in that: The system includes a city drainage pipe (1); a conical cover (2) located at the bottom of the city drainage pipe (1); two limiting grooves (3) symmetrically opened on the outer side wall of the conical cover (2); a semi-circular groove (4) opened at the bottom of the inner side of the limiting groove (3); a rotating rod (5) penetrating the inner side of the limiting groove (3); an anti-falling rod head (6) located at one end of the rotating rod (5); and a hollow float (7) located at the other end of the rotating rod (5); a liquid collection trough (8) opened on the outer side wall of the hollow float (7); a drainage trough (9) opened on the outer side wall of the conical cover (2) near the limiting groove (3); a flow guide platform (10) located on the inner side wall of the city drainage pipe (1); and a connecting flange (11) located at the top of the city drainage pipe (1).

2. A drainage device for river water conservancy projects according to claim 1, characterized in that: The outer diameter of the rotating rod (5) is smaller than the inner width of the limiting groove (3), and the rotating rod (5) and the semi-circular groove (4) are compatible. The outer diameter of the anti-drop rod head (6) is larger than the inner width of the limiting groove (3).

3. A drainage device for river water conservancy projects according to claim 1, characterized in that: The outer wall of one side of the anti-fall rod head (6) and the outer wall of the conical cover (2) are horizontal.

4. A drainage device for river water conservancy projects according to claim 1, characterized in that: The hollow float (7) has a hollow structure and is filled with air. The hollow float (7) is a polystyrene float.

5. A drainage device for river water conservancy projects according to claim 1, characterized in that: The top of the flow guide (10) is provided with an inclined surface.

6. A drainage device for a river water conservancy project according to claim 1, characterized in that: The outer diameter of the hollow float (7) is larger than the inner diameter of the urban drainage pipe (1).

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