A river ecological flow regulation gate

Abstract

A river ecological flow control gate includes: a gate frame installed on the river channel; a grid frame installed at the rear end of the gate frame, with a plurality of water-passing grids on the grid frame; a gate slidably connected to the gate frame; a drive mechanism installed at the top of the gate frame; a plurality of extension plates installed on the side wall of the gate, the extension plates being slidably connected to the gate; a telescopic component installed on the gate, the telescopic component being connected to the extension plates; and a confluence channel installed in the river channel, the confluence channel being located behind the gate frame. When the gate is raised, a whole row of water-passing grids is exposed. At this time, by extending the telescopic rod, some water-passing grids are blocked. The water-passing area can be further precisely adjusted when the gate is stationary, avoiding the problem of difficult control due to large changes in flow rate caused by gate movement, thus further ensuring the accuracy of ecological flow.

Description

Technical Field

[0001] This utility model relates to the field of river engineering technology, and more specifically, to a river ecological flow regulation gate. Background Technology

[0002] Ecological flow is fundamental to maintaining the structure and function of river and lake ecosystems and improving their quality and stability. For a long time, facing demands from river hydropower development, increased water intake, and urban water landscapes, water-retaining projects such as sluice gates have been increasing, obstructing normal river connectivity and posing a significant challenge to the normal release of ecological flow. As the most common type of river-retaining structure, ensuring the accurate release and measurement of ecological flow through sluice gates is crucial for safeguarding downstream ecological flow.

[0003] The existing gates are quite wide, and each time they are opened, there are significant changes in flow rate, which makes precise control difficult and has a significant impact on the downstream ecological structure. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a river ecological flow regulation gate that can regulate ecological flow by blocking the water passage grid.

[0005] A river ecological flow control gate includes: a gate frame installed on the river; a grid frame installed at the rear end of the gate frame, the grid frame having a plurality of water passage grids; a gate slidably connected to the gate frame; a drive mechanism installed at the top of the gate frame; a plurality of extension plates installed on the side wall of the gate, the extension plates being slidably connected to the gate; a telescopic assembly installed on the gate, the telescopic assembly being connected to the extension plates; and a confluence channel installed in the river, the confluence channel being located behind the gate frame.

[0006] Furthermore, the inner wall of the gate frame is provided with a slide rail, and the side wall of the gate is provided with a slider, which is slidably connected to the slide rail.

[0007] Furthermore, the water passage grids are arranged in a rectangular array on the grid frame, the grid frame is attached to the rear wall of the gate, and the height of the gate is greater than the height of the grid frame.

[0008] Furthermore, the top of the gate is provided with a side protrusion plate, which is perpendicular to the gate. A threaded rod is screwed onto the side protrusion plate, and the bottom of the threaded rod is rotatably connected to the top of the partition frame.

[0009] Furthermore, the drive mechanism includes a motor, a drive gear, and a driven gear. The fixed end of the motor is fixed to the gate frame, the drive gear is fixed to the output end of the motor, and the driven gear is rotatably connected to the top of the gate frame. The driven gear meshes with the drive gear.

[0010] Furthermore, the top of the threaded rod is fixed to the middle of the driven gear.

[0011] Furthermore, a protective cover is provided on the gate frame, which surrounds the top of the threaded rod and the drive mechanism.

[0012] Furthermore, the rear wall of the gate is provided with several grooves, and the extension plate is slidably connected to the grooves. The width of the extension plate is greater than the width of the water passage grid.

[0013] Furthermore, the telescopic assembly includes a telescopic rod and a connecting plate. The fixed end of the telescopic rod is fixedly connected to the side convex plate, the connecting plate is fixedly connected to the extension plate, and the telescopic end of the telescopic rod is fixedly connected to the connecting plate.

[0014] Furthermore, the cross-section of the confluence channel gradually narrows, an intercepting net is provided at the outlet of the confluence channel, and a ladder is provided on the side wall of the confluence channel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] ①When the gate is raised, the entire row of water-passing grids are exposed. At this time, by extending the telescopic rod, some of the water-passing grids are blocked. The water-passing area can be further adjusted more precisely when the gate is stationary. This avoids the problem of the flow rate being difficult to control due to the large changes in flow rate caused by the gate moving, and further ensures the accuracy of the ecological flow. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is a schematic diagram of the overall structure of a river ecological flow regulation gate.

[0019] Figure 2 This is a schematic diagram of a river ecological flow regulation gate from another perspective.

[0020] In the diagram: 1. Gate frame; 11. Slide rail; 12. Protective cover; 2. Divider frame; 21. Water passage grid; 3. Gate; 31. Side convex plate; 32. Threaded rod; 4. Drive mechanism; 41. Motor; 42. Drive gear; 43. Driven gear; 5. Extension plate; 6. Telescopic assembly; 61. Telescopic rod; 62. Connecting plate; 7. Confluence channel; 71. Interception net; 72. Ladder. Detailed Implementation

[0021] 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.

[0022] like Figure 1 , Figure 2 As shown, a river ecological flow control gate includes: a gate frame 1 installed on the river; a grid frame 2 installed at the rear end of the gate frame 1, with a plurality of water passage grids 21 installed on the grid frame 2; a gate 3 slidably connected to the gate frame 1; a drive mechanism 4 installed at the top of the gate frame 1; a plurality of extension plates 5 installed on the side wall of the gate 3, the extension plates 5 being slidably connected to the gate 3; a telescopic component 6 installed on the gate 3, the telescopic component 6 being connected to the extension plates 5; and a confluence channel 7 installed in the river, the confluence channel 7 being located behind the gate frame 1.

[0023] The gate frame 1 is used to restrict the movement trajectory of the gate 3, so that the gate 3 can only move up and down. The height of the gate frame 1 is twice the height of the gate 3. The inner wall of the gate frame 1 is provided with a slide rail 11, and the side wall of the gate 3 is provided with a slider. The slider is slidably connected to the slide rail 11. The slide rail 11 is located in front of the partition frame, and the slide rail 11 does not conflict with the partition frame.

[0024] The water passage grids 21 are arranged in a rectangular array on the grid frame 2. The water passage grids 21 are divided into three layers. The grid frame 2 is attached to the rear wall of the gate 3. The height of the gate 3 is greater than the height of the grid frame 2. When the gate 3 is opened upward, the water flows through the water passage grids 21. By placing the gate 3 in front of the water passage grids 21, silt will not be deposited in the water passage grids 21 when no water is being released. After the water is released, the silt is washed downstream with the water flow, reducing the amount of silt deposited.

[0025] The top of the gate 3 is provided with a side protrusion plate 31, which is perpendicular to the gate 3 and is located directly above the grid frame 2. When the gate 3 is at the bottom, the side protrusion plate 31 is located above the grid frame 2. A threaded rod 32 is screwed onto the side protrusion plate 31. The bottom of the threaded rod 32 is rotatably connected to the top of the grid frame 2. The threaded rod 32 is driven to rotate by the drive mechanism 4, thereby enabling the gate 3 to achieve the function of lifting and lowering.

[0026] The drive mechanism 4 includes a motor 41, a drive gear 42, and a driven gear 43. A mounting bracket is provided on the gate frame 1. The fixed end of the motor 41 is fixed to the mounting bracket of the gate frame 1. The drive gear 42 is fixed to the output end of the motor 41. After the motor 41 starts, it drives the drive gear 42 to rotate. The driven gear 43 is rotatably connected to the top of the gate frame 1. The driven gear 43 and the drive gear 42 mesh with each other. The drive gear 42 drives the driven gear 43 to rotate together.

[0027] The top of the threaded rod 32 is fixed to the middle of the driven gear 43. After the driven gear 43 rotates, it drives the threaded rod 32 to rotate, thereby driving the gate 3 to move up and down, so that the gate 3 can be opened and closed.

[0028] The gate frame 1 is provided with a protective cover 12, which surrounds the top of the threaded rod 32 and the drive mechanism 4. The protective cover 12 is connected to the top of the gate frame 1 by bolts. During normal operation, the protective cover 12 prevents rainwater from entering the motor 41, the drive gear 42 and the driven gear 43, thereby reducing the exposure of the parts to the open environment and extending their service life. When the parts are to be repaired, the protective cover 12 is temporarily opened for repair.

[0029] The rear wall of the gate 3 is provided with several grooves, and the extension plate 5 is slidably connected to the grooves. Each row of water passage grids 21 is provided with an extension plate 5. The width of the extension plate 5 is greater than the width of the water passage grid 21. The extension plate 5 can block the water passage grid 21. Each extension plate 5 can be operated independently, which can more accurately control the flow of each water passage grid 21 and ensure the precise supply of ecological flow.

[0030] The telescopic assembly 6 is used to move the extension plates 5 up and down. The telescopic assembly 6 includes a telescopic rod 61 and a connecting plate 62. The telescopic rod 61 is electrically driven, and its fixed end is fixed to the side convex plate 31. Each extension plate 5 has a telescopic rod 61 above it. The connecting plate 62 is fixed to the extension plate 5, and the telescopic end of the telescopic rod 61 is fixed to the connecting plate 62. The telescopic length of the telescopic rod 61 is the same as the height of the water passage grid 21. When the gate 3 is raised, the entire row of water passage grids 21 is exposed. At this time, by extending the telescopic rod 61, some of the water passage grids 21 are blocked. This allows for more precise adjustment of the water passage area when the gate 3 is stationary, avoiding the problem of uncontrollable flow changes due to the movement of the gate 3, and further ensuring the accuracy of the ecological flow.

[0031] Water flows through the overflow gate 21 into the confluence channel 7. The cross-section of the confluence channel 7 gradually narrows, concentrating the water in the middle before it flows outwards. This reduces the difference in impact force between the two ends of the river channel, preventing uneven erosion on the banks caused by opening only one overflow gate 21. An intercepting net 71 is installed at the outlet of the confluence channel 7 to intercept some garbage and reduce the impact on the downstream ecosystem. A ladder 72 is installed on the side wall of the confluence channel 7, allowing easy access to the river for maintenance of the sluice gate.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A river ecological flow regulation gate, characterized in that, include: A gate frame (1) installed on the river channel; A partition frame (2) is provided at the rear end of the gate frame (1), and the partition frame (2) is provided with a plurality of water passage grids (21); A gate (3) is slidably connected to the gate frame (1); A drive mechanism (4) is provided on the top of the gate frame (1); A plurality of extension plates (5) are provided on the side wall of the gate (3), and the extension plates (5) are slidably connected to the gate (3); A telescopic assembly (6) is provided on the gate (3), the telescopic assembly (6) being connected to the extension plate (5); and A confluence channel (7) is located in the river channel, and the confluence channel (7) is located behind the gate frame (1).

2. The river ecological flow regulation gate according to claim 1, characterized in that: The inner wall of the gate frame (1) is provided with a slide rail (11), and the side wall of the gate (3) is provided with a slider, which is slidably connected to the slide rail (11).

3. A river ecological flow regulation gate according to claim 2, characterized in that: The water passage grids (21) are arranged in a rectangular array on the grid frame (2). The grid frame (2) is attached to the rear wall of the gate (3). The height of the gate (3) is greater than the height of the grid frame (2).

4. A river ecological flow regulation gate according to claim 3, characterized in that: The top of the gate (3) is provided with a side protrusion plate (31), which is perpendicular to the gate (3). A threaded rod (32) is screwed onto the side protrusion plate (31), and the bottom of the threaded rod (32) is rotatably connected to the top of the grid frame (2).

5. A river ecological flow regulation gate according to claim 4, characterized in that: The drive mechanism (4) includes a motor (41), a drive gear (42), and a driven gear (43). The fixed end of the motor (41) is fixed to the gate frame (1), the drive gear (42) is fixed to the output end of the motor (41), and the driven gear (43) is rotatably connected to the top of the gate frame (1). The driven gear (43) meshes with the drive gear (42).

6. A river ecological flow regulation gate according to claim 5, characterized in that: The top of the threaded rod (32) is fixed to the middle of the driven gear (43).

7. A river ecological flow regulation gate according to claim 6, characterized in that: The gate frame (1) is provided with a protective cover (12), which surrounds the top of the threaded rod (32) and the drive mechanism (4).

8. A river ecological flow regulation gate according to claim 7, characterized in that: The gate (3) has several grooves on its rear wall, and the extension plate (5) is slidably connected to the grooves. The width of the extension plate (5) is greater than the width of the water passage grid (21).

9. A river ecological flow regulation gate according to claim 8, characterized in that: The telescopic assembly (6) includes a telescopic rod (61) and a connecting plate (62). The fixed end of the telescopic rod (61) is fixed to the side convex plate (31), and the connecting plate (62) is fixed to the extension plate (5). The telescopic end of the telescopic rod (61) is fixed to the connecting plate (62).

10. A river ecological flow regulation gate according to claim 9, characterized in that: The cross-section of the confluence channel (7) gradually narrows, and an intercepting net (71) is provided at the outlet of the confluence channel (7). A ladder (72) is provided on the side wall of the confluence channel (7).

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