Drainage gate for water conservancy project

Abstract

The utility model relates to the technical field of hydraulic engineering, in particular to a drainage gate for hydraulic engineering, which comprises a frame, a first gate, a servo motor, a first screw and the like. The front side and the rear side of the frame are open, a first gate is slidably connected into the frame, at least one servo motor is mounted at the top of the frame, output shafts of the servo motors penetrate through the frame and are connected with first screws, the first screws are in threaded connection with the first gate, and one side of the first gate is provided with an inclined plane. The first gate and the second gate are arranged, one side of the first gate is arranged to be the inclined face, the inclined face can reduce impact force of water flow on the first gate, resistance borne by the first gate in the opening and closing process is reduced, and therefore the service life of the first gate is prolonged; the second gate can be used as a standby channel to help to quickly respond to emergency conditions and reduce risks.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and more specifically, to a drainage gate for water conservancy projects. Background Technology

[0002] Drainage gates are an indispensable part of water conservancy projects, mainly used to control water flow and regulate water volume and direction. They play a vital role in flood management, irrigation systems, water supply projects, and hydropower stations. Drainage gates regulate water levels in rivers, reservoirs, or channels by opening or closing, ensuring the safe and effective discharge or storage of water. These gates are typically made of robust metal materials, such as steel or stainless steel, to withstand corrosion and wear from long-term immersion and water flow impact. In terms of design, there are various forms, including flat gates, curved gates, and herringbone gates, each with its specific application scenarios and technical requirements. For example, flat gates are suitable for situations with low water heads, while curved gates, due to their ability to withstand higher water pressure, are often used in high-water-head environments.

[0003] Patent publication number CN220284755U discloses a drainage gate for a water conservancy project, including a first frame and a second frame. The first frame is a hollow rectangular structure, with first grooves on both adjacent sides inside the first frame. First sliders are movably installed inside each of the two first grooves, and one side of each of the two first sliders is fixedly connected to the opposite sides of a first gate. The first gate in the aforementioned patent is a vertically sliding design, but this design requires a large motor or a complex starting device to overcome water resistance, water flow, and the gate's own weight. When raising and lowering the drainage gate, the water pressure and impact force are significant, resulting in considerable resistance during opening and closing. Utility Model Content

[0004] In order to overcome the shortcomings of the above-mentioned patents, which are subject to large water pressure and impact, the purpose of this utility model is to provide a drainage gate for water conservancy projects that can reduce the water pressure and impact on the gate.

[0005] A drainage gate for water conservancy projects includes a frame, a first gate, a first screw, and a servo motor. The front and rear sides of the frame are open. The first gate is slidably connected inside the frame. At least one servo motor is installed on the top of the frame. The output shaft of the servo motor passes through the frame. The output shaft of the servo motor is connected to the first screw. The first screw is threadedly connected to the first gate. One side of the first gate is set as an inclined surface. The cross-sectional area of ​​the top of the first gate is larger than the cross-sectional area of ​​the bottom of the first gate.

[0006] Optionally, it also includes a second gate, a second screw, and a waterproof motor. The first gate is open on both the front and rear sides. A waterproof motor is installed inside the first gate. The output shaft of the waterproof motor passes through the first gate. A second screw is connected to the output shaft of the waterproof motor. The second gate is slidably connected inside the first gate. The second gate is threadedly connected to the second screw.

[0007] Optionally, it also includes a first sealing gasket, a first sealing strip, a second sealing gasket, and a second sealing strip. The first sealing gasket is connected to the bottom of the first gate, and the first sealing strip is connected to both the left and right sides of the first gate. The second sealing gasket is connected to the bottom of the second gate, and the second sealing strip is connected to both the left and right sides of the second gate.

[0008] Optionally, it also includes a filter screen, which is installed inside the frame.

[0009] Optionally, it also includes guide rods, scrapers, and pull rods. Guide rods are connected to both the left and right sides of the frame, and scrapers are slidably connected between the left and right guide rods. The scrapers are in contact with the filter screen, and pull rods are connected to the scrapers.

[0010] Optionally, it also includes a connecting frame, which is connected to the scraper and fixedly connected to the pull rod.

[0011] Compared with the prior art, the present invention has the following advantages: The present invention is provided with a first gate and a second gate. One side of the first gate is set as an inclined surface, which can reduce the impact force of water flow on the first gate and reduce the resistance encountered by the first gate when opening and closing, thereby extending the service life of the first gate. When the first gate malfunctions or needs emergency drainage, the second gate can serve as a backup channel to help respond quickly to emergency situations and reduce risks. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the frame, first gate, and first screw of this utility model.

[0014] Figure 3 This is a cross-sectional view of the first gate of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the filter screen, guide rod, and scraper of this utility model.

[0016] Reference numerals: 1-Frame, 2-First gate, 3-First screw, 4-Servo motor, 5-Sloping surface, 6-Second gate, 7-Second screw, 8-Waterproof motor, 9-First sealing gasket, 10-First sealing strip, 101-Second sealing gasket, 102-Second sealing strip, 11-Filter screen, 12-Guide rod, 13-Scraper, 14-Connecting frame, 15-Pull rod. Detailed Implementation

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0018] A type of drainage gate for water conservancy projects, such as Figures 1-4 As shown, the device includes a frame 1, a first gate 2, a first screw 3, a servo motor 4, a second gate 6, a second screw 7, and a waterproof motor 8. The frame 1 has open front and rear sides. The first gate 2 is slidably connected inside the frame 1. Two servo motors 4 are mounted on the top of the frame 1, and the output shafts of the servo motors 4 pass through the frame 1. Each output shaft of the servo motor 4 has a first screw 3 fixedly connected to it, and the first screw 3 is threadedly connected to the first gate 2. The front side of the first gate 2 is a slope 5, and the cross-sectional area of ​​the top of the first gate 2 is larger than the cross-sectional area of ​​the bottom of the first gate 2. The first gate 2 has open front and rear sides. A waterproof motor 8 is installed inside the first gate 2. The output shaft of the waterproof motor 8 passes through the first gate 2. A second screw 7 is fixedly connected to the output shaft of the waterproof motor 8. A second gate 6 is slidably connected inside the first gate 2. The second gate 6 is threadedly connected to the second screw 7. Sliding grooves are opened on both the left and right sides of the inner wall of the frame 1 and the left and right sides of the inner wall of the first gate 2. Slots are opened on both the bottom of the inner wall of the frame 1 and the bottom of the inner wall of the first gate 2. The first gate 2 can be embedded in the slot of the frame 1, and the second gate 6 can be embedded in the slot of the first gate 2. The embedded design can improve the sealing performance of the first gate 2 and the second gate 6.

[0019] like Figure 2 and Figure 3 As shown, it also includes a first sealing gasket 9, a first sealing strip 10, a second sealing gasket 101, and a second sealing strip 102. The first sealing gasket 9 is fixedly connected to the bottom of the first gate 2, and the first sealing strip 10 is fixedly connected to both the left and right sides of the first gate 2. The second sealing gasket 101 is fixedly connected to the bottom of the second gate 6, and the second sealing strip 102 is fixedly connected to both the left and right sides of the second gate 6.

[0020] When using this drainage gate, the frame 1 is first fixedly installed in the channel. The first screw 3 is rotated by the servo motor 4, so that the first gate 2 slides down along the slide of the frame 1 and is embedded in the slot of the frame 1, thereby blocking the water flow. When the servo motor 4 controls the first screw 3 to reverse, the first gate 2 moves up along the slide of the frame 1 away from the slot of the frame 1, thereby opening the first gate 2 and allowing the water flow. The inclined surface 5 can reduce the impact force of the water flow on the first gate 2 and reduce the resistance encountered by the first gate 2 when opening and closing, thereby extending the service life of the first gate 2.

[0021] When the waterproof motor 8 drives the second screw 7 to rotate, the second gate 6 slides downward along the groove of the first gate 2 and embeds itself into the slot of the first gate 2. At this time, the second gate 6 completely covers the opening of the first gate 2. When the waterproof motor 8 drives the second screw 7 to reverse, the second gate 6 moves upward along the groove of the first gate 2 away from the slot of the first gate 2, thereby opening the opening of the first gate 2. It can be used to inspect, clean or repair the drainage gate without fully opening the first gate 2. It can safely access the internal structure of the drainage gate to perform necessary maintenance work without affecting the main water flow control. It can also achieve more precise control of water flow through the second gate 6. When the first gate 2 malfunctions or needs emergency drainage, the second gate 6 can serve as a backup channel to help respond quickly to emergencies and reduce risks. The first sealing gasket 9 and the first sealing strip 10 can further improve the sealing between the first gate 2 and the frame 1. The second sealing gasket 101 and the second sealing strip 102 can further improve the sealing between the second gate 6 and the first gate 2.

[0022] like Figure 1 and Figure 4 As shown, it also includes a filter screen 11, guide rods 12, scraper 13, connecting frame 14, and pull rod 15. The filter screen 11 is detachably connected to the front side of the inside of the frame 1. The guide rods 12 are fixedly connected to the left and right sides of the front of the frame 1. The scraper 13 is slidably connected between the left and right guide rods 12. The rear side of the scraper 13 contacts the filter screen 11. The connecting frame 14 is fixedly connected to the top of the scraper 13. The pull rod 15 is fixedly connected to the top of the scraper 13. The connecting frame 14 and the pull rod 15 are fixedly connected.

[0023] When this drain valve is in use, the filter screen 11 can block large debris in the water flow, achieving the purpose of initial cleaning. When too much large debris accumulates on the filter screen 11, manually pull the lever 15 upwards to move the scraper 13 upwards along the guide rod 12 to scrape off the large debris on the filter screen 11. The large debris will fall onto the scraper 13, and the connecting frame 14 can prevent the large debris from falling off the scraper 13. After removing the large debris from the scraper 13, the filtering effect of the filter screen 11 can be guaranteed. The scraper 13 can be moved downwards and reset by pulling the lever 15.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A drainage gate for water conservancy projects, comprising a frame (1) and a first gate (2), wherein the front and rear sides of the frame (1) are open, and the first gate (2) is slidably connected inside the frame (1), characterized in that: It also includes a first screw (3) and a servo motor (4). At least one servo motor (4) is installed on the top of the frame (1). The output shaft of the servo motor (4) passes through the frame (1). The first screw (3) is connected to the output shaft of the servo motor (4). The first screw (3) is threadedly connected to the first gate (2). One side of the first gate (2) is set as a slope (5). The cross-sectional area of ​​the top of the first gate (2) is larger than the cross-sectional area of ​​the bottom of the first gate (2).

2. A drainage gate for hydraulic engineering according to claim 1, characterized in that: It also includes a second gate (6), a second screw (7) and a waterproof motor (8). The front and rear sides of the first gate (2) are both open. The waterproof motor (8) is installed inside the first gate (2). The output shaft of the waterproof motor (8) passes through the first gate (2). The second screw (7) is connected to the output shaft of the waterproof motor (8). The second gate (6) is slidably connected inside the first gate (2). The second gate (6) is threadedly connected to the second screw (7).

3. A drainage gate for hydraulic engineering according to claim 2, characterized in that: It also includes a first sealing gasket (9), a first sealing strip (10), a second sealing gasket (101) and a second sealing strip (102). The bottom of the first gate (2) is connected to the first sealing gasket (9), and the left and right sides of the first gate (2) are connected to the first sealing strip (10). The bottom of the second gate (6) is connected to the second sealing gasket (101), and the left and right sides of the second gate (6) are connected to the second sealing strip (102).

4. A drainage gate for hydraulic engineering according to claim 3, characterized in that: It also includes a filter screen (11), which is installed inside the frame (1).

5. A drainage gate for hydraulic engineering according to claim 4, characterized in that: It also includes guide rods (12), scrapers (13) and pull rods (15). Guide rods (12) are connected to both the left and right sides of the frame (1). Scrapers (13) are slidably connected between the left and right guide rods (12). Scrapers (13) are in contact with the filter screen (11). Pull rods (15) are connected to the scrapers (13).

6. A drainage gate for hydraulic engineering according to claim 5, characterized in that: It also includes a connecting frame (14), which is connected to the scraper (13), and the connecting frame (14) is fixedly connected to the pull rod (15).

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