Farmland water conservancy structure

Abstract

The irrigation and water conservancy structure comprises an inlet bottom plate, an outlet bottom plate, a first inclined retaining wall and a second inclined retaining wall, and an inlet is formed in the front end of the inlet bottom plate; the number of the outlet bottom plates is two, and the two outlet bottom plates are arranged on the left side and the right side of the inlet bottom plate correspondingly. The inlet bottom plate is higher than the outlet bottom plate, so that a water falling structure is formed; the first inclined retaining wall and the second inclined retaining wall are arranged on the inlet bottom plate; the first inclined retaining wall, the second inclined retaining wall and the inlet bottom plate form a triangular confluence area with the vertex angle facing the rear side, and a sand washing opening is formed in the rear portion of the triangular confluence area and connected with a sand washing pipeline. The first inclined retaining wall and the second inclined retaining wall form a water force measuring structure, and the triangular confluence area, the sand washing opening and the sand washing pipeline form a sand washing structure. The multifunctional irrigation and water conservancy structure has the functions of sand washing and desilting, water falling and energy dissipation to adjust the flow speed of the channel and measure the water force in the channel at the same time, multifunctional integration of the irrigation and water conservancy structure is achieved, the structure is simplified, and the input cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of farmland water conservancy, and in particular relates to a farmland water conservancy structure. Background Art

[0002] Most of the existing farmland water conservancy structures only have one of the functions of sand flushing and silt removal, waterfall energy dissipation and channel flow velocity regulation, and channel water force side function, resulting in the defect of single function.

[0003] For example, the waterfall structures commonly used in the prior art of farmland water conservancy often only have the function of forming a waterfall to adjust the channel drop, and thus can only achieve the function of regulating the flow rate. In addition, the sand flushing and silt removal structures in the prior art are usually more complicated, but they also only have the function of sand flushing and silt removal. In addition, when hydraulic force measurement is required in the prior art, it is generally achieved by setting a hydraulic force measurement structure similar to a Marshall trough with a single function. Summary of the invention

[0004] The purpose of the present invention is to provide a farmland water conservancy structure to solve the problem of single function of farmland water conservancy structures in the prior art, so that it can simultaneously have the functions of sand flushing and silt removal, waterfall energy dissipation to adjust channel flow rate and water force measurement in the channel, thereby realizing the multifunctional integration of farmland water conservancy structures, and then simplifying the structure and reducing investment costs.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention provides a farmland water conservancy structure, comprising an inlet bottom plate, an outlet bottom plate, a first inclined retaining wall and a second inclined retaining wall, wherein the front end of the inlet bottom plate is arranged as an inlet; two outlet bottom plates are arranged, and the two outlet bottom plates are respectively arranged on the left and right sides of the inlet bottom plate; the height of the inlet bottom plate is greater than the height of the outlet bottom plate, forming a waterfall structure; the first inclined retaining wall and the second inclined retaining wall are both arranged on the inlet bottom plate; the first inclined retaining wall, the second inclined retaining wall and the inlet bottom plate form a triangular confluence area with the top angle facing the rear side, a sand flushing port is arranged at the rear of the triangular confluence area, and the sand flushing port is connected to a sand flushing pipeline; the first inclined retaining wall and the second inclined retaining wall form a hydraulic force measurement structure, and the triangular confluence area, the sand flushing port and the sand flushing pipeline form a sand flushing structure.

[0006] The farmland water conservancy structure of the present invention has a height difference between the inlet bottom plate and the outlet bottom plate to form a waterfall structure. The first inclined retaining wall, the second inclined retaining wall and the inlet bottom plate form a triangular confluence area. In this area, the water flow velocity is sharply reduced and the carrying capacity is linearly reduced due to the obstruction of the first inclined retaining wall and the second inclined retaining wall, thereby forming silt deposition on the inlet bottom plate; the water with less silt content after deposition overflows through the top of the first inclined retaining wall and the second inclined retaining wall into the rear channel; the silt deposited between the first inclined retaining wall and the second inclined retaining wall enters the sand flushing pipeline through the sand flushing port for discharge. The first inclined retaining wall and the second inclined retaining wall 4 form a hydraulic force measurement structure, and the channel flow is calculated by observing the streamline state of the upper part of the first inclined retaining wall and the second inclined retaining wall and the water level of the top of the first inclined retaining wall and the second inclined retaining wall.

[0007] Preferably, the rear parts of the first inclined retaining wall and the second inclined retaining wall are respectively connected to the left and right sides of the middle structure, and the sand flushing port is opened on the middle structure.

[0008] Preferably, the sand flushing port is opened at the bottom of the middle structure and a gate is provided; a pedestrian bridge is provided on the top of the middle structure, the pedestrian bridge is provided above the gate, and the gate is provided as a vertical lift gate.

[0009] Preferably, a pipeline interface is provided at the rear of the inlet bottom plate, the sand flushing pipeline is connected to the pipeline interface, and the sand flushing pipeline is arranged at the bottom of the inlet bottom plate.

[0010] Preferably, the sand flushing port is arranged in front of the pipeline interface; the left and right sides of the middle structure are respectively connected to the left and right ends of the U-shaped enclosure wall to form an enclosure structure, and the pipeline interface is arranged in the enclosure structure.

[0011] Preferably, the enclosure wall is configured as a U-shaped wall bent at a right angle, and the enclosure structure is configured as a rectangle; the height of the enclosure wall is the same as the height of the first inclined enclosure wall and the second inclined enclosure wall.

[0012] Preferably, the front ends of the first inclined retaining wall and the second inclined retaining wall are respectively connected to the left and right sides of the front end of the inlet bottom plate.

[0013] Preferably, the left and right sides of the inlet bottom plate are respectively connected to side walls, and the front ends of the first inclined retaining wall and the second inclined retaining wall are respectively connected to the front ends of the two side walls.

[0014] Preferably, the side wall is configured as a U-shaped right-angled structure with the pipeline interface directions facing away from each other; and the inlet bottom plate is configured as an I-shaped structure with the web along the front-to-back direction.

[0015] Preferably, the height of the side wall is greater than the height of the first inclined retaining wall and the second inclined retaining wall.

[0016] The farmland water conservancy structure provided by the present invention has the following beneficial effects: The farmland water conservancy structure provided by the present invention can solve the problem of single function of the farmland water conservancy structure in the prior art, so that it can simultaneously have the functions of sand flushing and silt removal, waterfall energy dissipation to adjust channel flow rate and water force measurement in the channel, thereby realizing the multifunctional integration of the farmland water conservancy structure, and then simplifying the structure and reducing investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural rendering of a farmland water conservancy structure from a first perspective provided by an embodiment of the present invention.

[0018] Figure 2 It is a structural effect diagram of the farmland water conservancy structure provided by one embodiment of the present invention from a second perspective.

[0019] Figure 3 It is a structural effect diagram of the farmland water conservancy structure provided by one embodiment of the present invention from a third perspective.

[0020] Figure 4 It is a top view of a farmland water conservancy structure provided by one embodiment of the present invention.

[0021] Figure 5 yes Figure 4 Middle AA section view.

[0022] Figure 6 yes Figure 4 Middle BB cross-section.

[0023] Figure 7 yes Figure 4 Middle CC section.

[0024] Figure 8 yes Figure 4 Middle DD section view.

[0025] Reference numerals in the figures: 1. Inlet bottom plate, 2. Outlet bottom plate, 3. First inclined retaining wall, 4. Second inclined retaining wall, 5. Gate, 501. Sand flushing port, 6. Side wall, 7. Middle structure, 8. Footbridge, 9. Sand flushing pipeline, 101. Pipeline interface, 102. Retaining wall. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below through the accompanying drawings and specific embodiments. Example

[0027] Please refer to Figures 1 to 8 The present embodiment provides a farmland water conservancy structure, including an inlet bottom plate 1, an outlet bottom plate 2, a first inclined retaining wall 3 and a second inclined retaining wall 4, the front end of the inlet bottom plate 1 is set as an inlet; there are two outlet bottom plates 2, and the two outlet bottom plates 2 are respectively arranged on the left and right sides of the inlet bottom plate 1; the height of the inlet bottom plate 1 is greater than the height of the outlet bottom plate 2, forming a waterfall structure; the first inclined retaining wall 3 and the second inclined retaining wall 4 are both arranged on the inlet bottom plate 1; the first inclined retaining wall 3, the second inclined retaining wall 4 and the inlet bottom plate 1 form a triangular confluence area with the vertex facing the rear side, and a sand flushing port 501 is arranged at the rear of the triangular confluence area, and the sand flushing port 501 is connected to the sand flushing pipeline 9; the first inclined retaining wall 3 and the second inclined retaining wall 4 form a hydraulic force measurement structure, and the triangular confluence area, the sand flushing port 501 and the sand flushing pipeline 9 form a sand flushing structure.

[0028] In the farmland water conservancy structure of this embodiment, the inlet bottom plate 1 and the outlet bottom plate 2 can form a height difference when the concrete is poured. The elevation of the inlet bottom plate 1 is greater than that of the outlet bottom plate 2. The drop structure uses the height difference between the inlet bottom plate 1 and the outlet bottom plate 2 to form a water drop, so that the water flow entering the structure from the inlet passes through the drop structure to form a water drop, thereby reducing the channel slope, thereby playing a role in dissipating the kinetic energy of the water flow and regulating the flow rate.

[0029] The sand flushing structure utilizes the first inclined retaining wall 3, the second inclined retaining wall 4 and the inlet bottom plate 1 to form a triangular confluence area. In this area, due to the obstruction of the first inclined retaining wall 3 and the second inclined retaining wall 4, the water flow velocity decreases sharply, and the carrying capacity decreases sharply, thereby forming silt deposits on the inlet bottom plate 1; the water with less silt content after deposition overflows through the top of the first inclined retaining wall 3 and the second inclined retaining wall 4 into the rear channel; the silt deposited between the first inclined retaining wall 3 and the second inclined retaining wall 4 enters the sand flushing pipeline 9 through the sand flushing port 501 for discharge.

[0030] The hydraulic force measurement structure is used to calculate the channel flow by observing the streamline state of the upper part of the first inclined retaining wall 3 and the second inclined retaining wall 4 and the water level increase of the top of the first inclined retaining wall 3 and the second inclined retaining wall 4.

[0031] in, Figures 1 to 3 In the figure, the green arrows represent the direction of water flow and the red arrows represent the direction of sediment flow. Figures 1 to 4 The bottom represents the front, and the top represents the back.

[0032] Please refer to Figures 1 to 7 In some embodiments, the rear portions of the first inclined retaining wall 3 and the second inclined retaining wall 4 are respectively connected to the left and right sides of the middle structure 7 , and the sand flushing port 501 is opened on the middle structure 7 .

[0033] The middle structure 7 is arranged at the rear side of the inlet bottom plate 1. The outlet bottom plates 2 on both sides can be connected as one at the rear side of the middle structure 7. The rear end of the outlet bottom plate 2 is arranged as an outlet for water to flow out.

[0034] Please refer to Figure 1 , Figures 3 to 8 Specifically, the sand flushing port 501 is opened at the bottom of the middle structure 7, and a gate 5 is set; a pedestrian bridge 8 is set on the top of the middle structure 7, and the pedestrian bridge 8 is set above the gate 5, and the gate 5 is set as a vertical gate.

[0035] The maintenance personnel can open and close the vertical gate 5 through the footbridge 8 arranged on the top of the middle structure 7. When the sediment reaches the set amount, the gate 5 is opened to discharge the sediment through the sand flushing pipeline 9.

[0036] Please refer to Figure 2 and Figure 5 Specifically, a pipeline interface 101 is opened at the rear of the inlet bottom plate 1 , the sand flushing pipeline 9 is connected to the pipeline interface 101 , and the sand flushing pipeline 9 is arranged at the bottom of the inlet bottom plate 1 .

[0037] The sand flushing pipeline 9 can be arranged below the inlet bottom plate 1 .

[0038] Specifically, the sand flushing port 501 is arranged in front of the pipeline interface 101; the left and right sides of the middle structure 7 are respectively connected to the left and right ends of the U-shaped enclosure wall 102 to form an enclosure structure, and the pipeline interface 101 is arranged in the enclosure structure.

[0039] like Figure 2 As shown, specifically, the enclosure wall 102 is configured as a U-shaped wall bent at a right angle, and the enclosure structure is configured as a rectangle; the height of the enclosure wall 102 is the same as the height of the first inclined retaining wall 3 and the second inclined retaining wall 4.

[0040] Please refer to Figures 1 to 8 In some embodiments, the front ends of the first inclined retaining wall 3 and the second inclined retaining wall 4 are respectively connected to the left and right sides of the front end of the inlet bottom plate 1 .

[0041] Specifically, the left and right sides of the inlet bottom plate 1 are respectively connected with the side walls 6 , and the front ends of the first inclined retaining wall 3 and the second inclined retaining wall 4 are respectively connected with the front ends of the two side walls 6 .

[0042] Please refer to Figures 1 to 4 Specifically, the side wall 6 is configured as a U-shaped right-angle bent structure with the opening directions facing away from each other; the inlet bottom plate 1 is configured as an I-shaped structure with the web along the front-to-back direction.

[0043] Please refer to Figures 1 to 3 , Figure 5 and Figure 7Specifically, the height of the side wall 6 is greater than the height of the first inclined retaining wall 3 and the second inclined retaining wall 4.

[0044] Please refer to Figures 1 to 8 , wherein the inlet bottom plate 1 is set as a transverse plate of an isosceles triangle. The two outlet bottom plates 2 are set as transverse plates of a right triangle. The height of the inlet bottom plate 1 is greater than the height of the two outlet bottom plates 2, and the two oblique sides of the inlet bottom plate 1 are respectively connected to the oblique sides of the two outlet bottom plates 2, so that the top projection of the connection structure between the inlet bottom plate 1 and the two outlet bottom plates 2 is rectangular and the vertical section is convex. The first oblique retaining wall 3 and the second oblique retaining wall 4 are set as vertical rectangular walls, and are respectively connected to the connection position between the inlet bottom plate 1 and the outlet bottom plate 2. The gate 5 is set as a rectangle. The sand flushing port 501 is set as a rectangle. The middle structure 7 is set as a vertical rectangular structure. The pedestrian bridge 8 is set as a transverse rectangular structure. The retaining wall 102 is set as a vertical wall, and its cross section is set as a right-angled U-shape. The side wall 6 is set as a vertical wall, and its cross section is set as a right-angled U-shape.

[0045] The above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A farmland water conservancy structure, characterized in that: include: An inlet bottom plate, the front end of which is arranged as an inlet; There are two outlet bottom plates, which are respectively arranged on the left and right sides of the inlet bottom plate; The height of the inlet bottom plate is greater than the height of the outlet bottom plate, forming a water drop structure; The first oblique baffle wall and the second oblique baffle wall are both arranged on the inlet bottom plate; the first oblique baffle wall, the second oblique baffle wall and the inlet bottom plate form a triangular confluence area with the vertex facing the rear side, and a sand flushing port is arranged at the rear of the triangular confluence area, and the sand flushing port is connected to a sand flushing pipeline; The first inclined retaining wall and the second inclined retaining wall form a hydraulic force measurement structure, and the triangular confluence area, the sand flushing port and the sand flushing pipeline form a sand flushing structure.

2. The farmland water conservancy structure according to claim 1, characterized in that: The rear parts of the first inclined retaining wall and the second inclined retaining wall are respectively connected to the left and right sides of the middle structure, and the sand flushing port is opened on the middle structure.

3. The farmland water conservancy structure according to claim 2, characterized in that: The sand flushing port is opened at the bottom of the middle structure and is provided with a gate; a pedestrian bridge is provided on the top of the middle structure, the pedestrian bridge is provided above the gate, and the gate is provided as a vertical lift gate.

4. The farmland water conservancy structure according to claim 2, characterized in that: A pipeline interface is provided at the rear of the inlet bottom plate, the sand flushing pipeline is connected to the pipeline interface, and the sand flushing pipeline is arranged at the bottom of the inlet bottom plate.

5. The farmland water conservancy structure according to claim 4, characterized in that: The sand flushing port is arranged in front of the pipeline interface; the left and right sides of the middle structure are respectively connected to the left and right ends of the U-shaped enclosure wall to form an enclosure structure, and the pipeline interface is arranged in the enclosure structure.

6. The farmland water conservancy structure according to claim 5, characterized in that: The enclosure wall is configured as a U-shaped wall bent at a right angle, and the enclosure structure is configured as a rectangle; the height of the enclosure wall is the same as the heights of the first inclined enclosure wall and the second inclined enclosure wall.

7. The farmland water conservancy structure according to any one of claims 1 to 6, characterized in that: The front ends of the first inclined retaining wall and the second inclined retaining wall are respectively connected to the left and right sides of the front end of the inlet bottom plate.

8. The farmland water conservancy structure according to claim 7, characterized in that: The left and right sides of the inlet bottom plate are respectively connected with side walls, and the front ends of the first inclined retaining wall and the second inclined retaining wall are respectively connected with the front ends of the two side walls.

9. The farmland water conservancy structure according to claim 8, characterized in that: The side walls are configured as U-shaped right-angle bent structures with opening directions facing away from each other; the inlet bottom plate is configured as an I-shaped structure with the web along the front-to-back direction.

10. The farmland water conservancy structure according to claim 8, characterized in that: The height of the side wall is greater than the height of the first inclined retaining wall and the second inclined retaining wall.

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