Field irrigation and drainage gate for irrigation and water conservancy

Abstract

The field irrigation and drainage gate comprises a gate plate installed in a drainage channel, the gate plate ascends and descends through a height adjusting mechanism, limiting blocks are installed on the inner walls of the two sides of the drainage channel, and the gate plate is arranged between the two limiting blocks in an inserted mode. A composite protection plate is detachably installed on the side, close to the water source, of the gate plate, and the bottom and the two sides of the composite protection plate are in sealed connection with the bottom face and the inner walls of the two sides of the drainage channel correspondingly. The detachable composite protection plate is installed on the side, close to the water source, of the flashboard, water in the drainage channel is blocked through sealing of the composite protection plate and the side wall of the drainage channel, the water and the flashboard are blocked through the composite protection plate, the flashboard is prevented from being damaged due to corrosion of substances in the water, the service life of the flashboard is prolonged, direct replacement of the flashboard is avoided, and cost is reduced. And by utilizing the composite protection function of the composite protection plate, the service life of the composite protection plate can be prolonged, so that the maintenance cost is reduced, and the market prospect is wide.

Description

Technical Field

[0001] This application relates to the field of gate technology, specifically to a field irrigation and drainage gate. Background Technology

[0002] Farmland irrigation refers to the process of digging multiple irrigation canals in farmland to channel water into the fields. Drainage gates are installed in the irrigation canals to control the flow of water and adjust the water volume.

[0003] A Chinese patent discloses an automatic irrigation and drainage gate for farmland water utilization, which relates to the field of farmland water conservancy. It includes two fixed bases, each with a groove inside. A slider is slidably connected inside the groove. A spring is fixedly installed on one side of each slider. A connecting block is fixedly connected to each slider. An opening and closing mechanism is fixedly connected between the connecting blocks. The opening and closing mechanism includes an outer frame. An electric push rod is fixedly installed on the top of the outer frame. A gate plate is fixedly connected to the bottom end of the output shaft of the electric push rod.

[0004] In actual farmland irrigation, the gate plate is easily damaged by water, salt and other corrosive substances due to long-term contact with water. After corrosion, the gate plate needs to be replaced in time, which is inconvenient and the cost of gate plate parts is high. Direct replacement will result in high maintenance costs. Therefore, we propose a farmland irrigation and drainage gate with a corrosion-resistant gate plate. Summary of the Invention

[0005] Therefore, this application provides a farmland irrigation and drainage gate to solve the problems of existing technologies where the gate plate is easily damaged by water, salt and other corrosive substances, replacing the gate plate is inconvenient, and the cost of gate plate parts is high, resulting in high maintenance costs if the gate plate is directly replaced.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A farmland irrigation and drainage gate includes a gate plate installed in a drainage ditch, and the gate plate is raised and lowered by a height adjustment mechanism. Limiting blocks are installed on both inner walls of the drainage ditch. The gate plate is inserted between the two limiting blocks. A composite protective plate is detachably installed on the side of the gate plate near the water source. The bottom and both sides of the composite protective plate are sealed to the bottom surface and the inner walls of both sides of the drainage ditch, respectively.

[0008] Optionally, the composite protective plate includes a base plate and an anti-corrosion plate. The base plate is detachably connected to the gate plate via a connector, and the anti-corrosion plate is installed on the side of the base plate away from the gate plate.

[0009] Optionally, a sealing strip is installed at the bottom of the substrate, and the lower end face of the sealing strip is in contact with the bottom surface of the drainage channel.

[0010] Optionally, a sealing plate symmetrically distributed on the side of the base plate near the gate is installed. The sealing plate is snapped into the gap between the base plate and the limiting block, and the outer surface of the sealing plate is tightly fitted with the outer surface of the limiting block.

[0011] Optionally, a slot is provided on the side of the base plate away from the gate, and the upper end of the slot is set as an opening. A plug corresponding to and adapted to the slot is installed on the side of the anti-corrosion plate near the base plate. The plug is tightly inserted into the slot and fastened by bolts.

[0012] Optionally, the anti-corrosion plate is a precast corrosion-resistant concrete plate, and the insert is pre-embedded during the prefabrication process of the anti-corrosion plate.

[0013] Optionally, a screw is installed on the side of the composite protective plate near the gate, and the other end of the screw passes through and extends to the other side of the gate and is locked by a nut.

[0014] Optionally, the screw is threaded with two nuts, which are respectively located on both sides of the gate plate, and the side of the nut closest to the gate plate is sealed by a sealing ring.

[0015] Compared with the prior art, this application has at least the following beneficial effects:

[0016] By installing a detachable composite protective plate on the side of the gate closest to the water source, the water in the drainage ditch is blocked through the seal between the composite protective plate and the side wall of the drainage ditch. The composite protective plate isolates the water from the gate, preventing the gate from being damaged by corrosion from substances in the water, thereby extending the service life of the gate and avoiding direct replacement of the gate. The composite protective plate's combined protective function also extends its service life, thereby reducing maintenance costs and showing broad market prospects. Attached Figure Description

[0017] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0018] Figure 1 This application provides a schematic diagram of the structure of a farmland irrigation and drainage gate for farmland water utilization, as one embodiment of the present application.

[0019] Figure 2This is a top view of the composite protective plate in one embodiment of this application;

[0020] Figure 3 For this application Figure 2 A magnified view of a portion of the image.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Drainage ditch; 2. Gate; 3. Composite protective plate; 31. Base plate; 32. Anti-corrosion plate; 33. Insert block; 4. Limiting block; 5. Sealing strip; 6. Sealing plate; 7. Screw; 8. Nut; 9. Sealing ring; 10. Fixing rod; 11. Cantilever beam; 12. Lead screw; 13. Movable plate. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] In this embodiment, as Figure 1 As shown, a farmland irrigation and drainage gate for farmland water utilization includes a gate plate 2 installed in a drainage ditch 1. The gate plate 2 is raised and lowered by a height adjustment mechanism. Limiting blocks 4 are installed on both inner walls of the drainage ditch 1. The gate plate 2 is inserted between the two limiting blocks 4. A composite protective plate 3 is detachably installed on the side of the gate plate 2 closest to the water source. The bottom and both sides of the composite protective plate 3 are sealed to the bottom surface and the inner walls of both sides of the drainage ditch 1, respectively.

[0025] The height adjustment mechanism includes fixed rods 10, a suspension beam 11, a lead screw 12, and a movable plate 13. There are two fixed rods 10 symmetrically distributed on both sides of the upper opening of the drainage ditch 1. The suspension beam 11 is mounted above the drainage ditch 1, and both ends of the suspension beam 11 are fixedly connected to the tops of the two fixed rods 10. The upper end of the lead screw 12 is rotatably connected to the suspension beam 11 and is equipped with a handle or driven by a motor. A vertically arranged threaded tube is fitted into the middle of the gate plate 2. The lower end of the lead screw 12 extends downward into the threaded tube and is threadedly connected to it. The threaded tube is installed on the movable plate 13. Both ends of the movable plate 13 are slidably fitted onto adjacent fixed rods 10. By manually or by driving the lead screw 12 to rotate, the movable plate 13 can be moved up and down, thereby driving the threaded tube and the gate plate 2 to rise and fall. The height adjustment mechanism can also adopt other structures such as an electric push rod.

[0026] By installing a detachable composite protective plate 3 on the side of the gate 2 closest to the water source, the water in the drainage ditch 1 is blocked by the seal between the composite protective plate 3 and the side wall of the drainage ditch 1. The composite protective plate 3 isolates the water from the gate 2, preventing the gate 2 from being damaged by corrosion from substances in the water, thereby increasing the service life of the gate 2 and avoiding direct replacement of the gate 2. The composite protective plate 3's composite protective function can also increase its service life, thereby reducing maintenance costs and showing broad market prospects.

[0027] Specifically, such as Figures 1-3 As shown, the composite protective plate 3 includes a base plate 31 and an anti-corrosion plate 32. The base plate 31 is detachably connected to the gate plate 2 via a connector, and the anti-corrosion plate 32 is installed on the side of the base plate 31 away from the gate plate 2.

[0028] Furthermore, a sealing strip 5 is installed at the bottom of the substrate 31, and the lower end face of the sealing strip 5 is in contact with the bottom surface of the drainage channel 1, which can improve the sealing between the bottom of the substrate 31 and the bottom surface of the drainage channel 1, thereby improving the waterproof effect.

[0029] Furthermore, a sealing plate 6 is installed on the side of the base plate 31 near the gate 2, which is symmetrically distributed on the left and right. The sealing plate 6 is snapped into the gap between the base plate 31 and the limiting block 4, and the outer surface of the sealing plate 6 is tightly attached to the outer surface of the limiting block 4. The sealing plate 6 is L-shaped, and the inner right angle of the L-shape is attached to the outer right angle of the limiting block 4, thereby improving the sealing between them and improving the actual waterproof effect.

[0030] Both the sealing strip 5 and the sealing plate 6 are made of sealing material, preferably rubber.

[0031] Furthermore, such as Figure 3 As shown, a slot is provided on the side of the base plate 31 away from the gate plate 2, and the upper end of the slot is set as an opening. A corresponding and compatible plug block 33 is installed on the side of the anti-corrosion plate 32 close to the base plate 31. The plug block 33 is tightly inserted into the slot and fastened by bolts, which facilitates the installation and removal of the anti-corrosion plate 32. As the usage time goes by, the surface of the anti-corrosion plate 32 is gradually damaged. By loosening the bolts, the anti-corrosion plate 32 can be moved up and removed, and a new anti-corrosion plate 32 can be installed, which facilitates actual maintenance and replacement operations.

[0032] Furthermore, the anti-corrosion plate 32 is a precast corrosion-resistant concrete plate, and the insert block 33 is pre-embedded during the prefabrication process of the anti-corrosion plate 32, which can improve the overall firmness. The anti-corrosion plate 32 is preferably sulfoaluminate cement concrete, which has excellent resistance to seawater and chemical corrosion, and can improve the actual service life.

[0033] Furthermore, such as Figure 3As shown, a screw 7 is installed on the side of the composite protective plate 3 near the gate plate 2. The other end of the screw 7 passes through and extends to the other side of the gate plate 2 and is locked by a nut 8. A reserved hole adapted to the screw 7 is opened on the gate plate 2. The screw 7 passes through the reserved hole and is fixed by the nut 8, so that the composite protective plate 3 can be quickly installed on the gate plate 2.

[0034] Furthermore, two nuts 8 are threaded onto the screw 7, and the two nuts 8 are respectively located on both sides of the gate plate 2. The side of the nut 8 closest to the gate plate 2 is sealed by a sealing ring 9 to prevent accidental water leakage.

[0035] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A farmland irrigation and drainage gate, comprising a gate plate (2) installed in a drainage ditch (1), wherein the gate plate (2) is raised and lowered by a height adjustment mechanism, characterized in that, Limiting blocks (4) are installed on both sides of the drainage ditch (1). The gate (2) is inserted between the two limiting blocks (4). A composite protective plate (3) is detachably installed on the side of the gate (2) near the water source. The bottom and both sides of the composite protective plate (3) are sealed to the bottom surface and the inner walls of both sides of the drainage ditch (1).

2. A farmland irrigation and drainage gate for farmland water utilization according to claim 1, characterized in that, The composite protective plate (3) includes a base plate (31) and an anti-corrosion plate (32). The base plate (31) is detachably connected to the gate (2) through a connector. The anti-corrosion plate (32) is installed on the side of the base plate (31) away from the gate (2).

3. A farmland irrigation and drainage gate for farmland water utilization according to claim 2, characterized in that, A sealing strip (5) is installed at the bottom of the substrate (31), and the lower end face of the sealing strip (5) is in contact with the bottom surface of the drainage channel (1).

4. A farmland irrigation and drainage gate for farmland water utilization according to claim 2, characterized in that, The base plate (31) is equipped with a sealing plate (6) symmetrically distributed on the side near the gate (2). The sealing plate (6) is snapped into the gap between the base plate (31) and the limiting block (4), and the outer surface of the sealing plate (6) is in close contact with the outer surface of the limiting block (4).

5. A farmland irrigation and drainage gate for farmland water utilization according to claim 2, characterized in that, The base plate (31) has a slot on the side away from the gate (2), and the upper end of the slot is set as an opening. The anti-corrosion plate (32) has a plug (33) that corresponds to and is adapted to the slot on the side close to the base plate (31). The plug (33) is tightly inserted into the slot and fastened by bolts.

6. A farmland irrigation and drainage gate for farmland water utilization according to claim 5, characterized in that, The corrosion-resistant plate (32) is a precast corrosion-resistant concrete plate, and the insert (33) is pre-embedded during the prefabrication process of the corrosion-resistant plate (32).

7. A farmland irrigation and drainage gate according to any one of claims 1-6, characterized in that, The composite protective plate (3) is fitted with a screw (7) on one side near the gate (2), and the other end of the screw (7) extends through and to the other side of the gate (2) and is locked by a nut (8).

8. A farmland irrigation and drainage gate for farmland water utilization according to claim 7, characterized in that, Two nuts (8) are threaded onto the screw (7). The two nuts (8) are respectively located on both sides of the gate (2), and the side of the nut (8) closest to the gate (2) is sealed by a sealing ring (9).

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