A water gate for irrigation of agricultural fields

Abstract

The application discloses a water gate for farmland irrigation, which comprises a fixed seat, a gate and a transmission mechanism. The fixed seat is formed with a water irrigation opening. The lower end of the gate is swing-connected with the fixed seat and can be switched between a closed state and an open state relative to the fixed seat through swing action. The transmission mechanism is connected with the gate and can drive the gate to swing relative to the fixed seat in response to external force. When the gate is in the closed state, the water irrigation opening is closed. When the gate is in the open state, the water irrigation opening is opened. When the application is applied, the transmission mechanism and the gate are connected, the gate is driven to swing through the transmission mechanism, the gate can be opened and closed relative to the water irrigation opening, and the power device can be prevented from being polluted by dirt.

Description

Technical Field

[0001] This application relates to the field of agricultural water conservancy equipment technology, specifically to a sluice gate for farmland irrigation. Background Technology

[0002] Flap gates automatically open and close based on the water depth in farmland to automatically start and stop irrigation. Existing flap gates generally use hydraulic cylinders to drive the gate's swinging motion. However, during operation, the hydraulic rod needs to extend and retract relative to the cylinder body. During irrigation, the section of the hydraulic rod closest to the gate inevitably gets submerged in water, making it prone to accumulating mud and other contaminants. Over time, the hydraulic rod may carry contaminants into the cylinder due to reduced sealing performance, leading to oil contamination, cylinder wear, and ultimately affecting the cylinder's lifespan. Furthermore, existing flap gates typically use a sealing strip at the opening and closing joint between the gate and the cement base, but this sealing method is also susceptible to failure due to debris getting stuck inside. Utility Model Content

[0003] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a sluice gate for farmland irrigation.

[0004] To achieve the above objectives, this application adopts the following technical solution: a sluice gate for farmland irrigation, the sluice gate comprising:

[0005] A fixed base, which has a water inlet;

[0006] A gate, the lower end of which is sway-connected to the fixed base and can switch between a closed state and an open / closed state relative to the fixed base through a swaying motion; and...

[0007] A transmission mechanism, which is connected to the gate and can drive the gate to swing relative to the fixed seat in response to external forces;

[0008] Specifically, when the gate is in the closed state, it will close the water inlet; when the gate is in the open / closed state, it will open the water inlet.

[0009] The application of this application has the following beneficial effects: by setting up a transmission mechanism and connecting it to the gate, the gate can be driven to swing through the transmission mechanism. This not only enables the gate to open and close relative to the water inlet, but also avoids the power unit from being contaminated by dirt.

[0010] Optionally, the transmission mechanism includes:

[0011] A fixing frame, which is fixedly mounted on the fixing base;

[0012] A drive wheel, which is rotatably mounted on the fixed frame;

[0013] A pull rod, the bottom end of which is movably hinged to the gate; and,

[0014] A limiting bracket, which is disposed on the fixed bracket and is used to prevent the pull rod from disengaging from the fixed bracket;

[0015] The lever is configured to move under the drive of the drive wheel and cause the gate to swing.

[0016] Optionally, the transmission mechanism further includes a transmission structure disposed between the drive wheel and the pull rod, the transmission structure being a traction rope, one end of which is wound around the drive wheel, and the other end of which is fixedly connected to the bottom end of the pull rod; or, the transmission structure includes a drive tooth disposed on the drive wheel and a transmission tooth disposed on the pull rod, the drive tooth and the transmission tooth meshing with each other.

[0017] Optionally, the limiting frame includes a first connecting arm, a second connecting arm, and a limiting member fixedly disposed between the first connecting arm and the second connecting arm. The first connecting arm and the second connecting arm are respectively located on both sides of the fixed frame and are rotatably connected to the fixed frame. The limiting member, the first connecting arm, the second connecting arm, and the fixed frame enclose a limiting cavity, and the pull rod passes through the limiting cavity.

[0018] Optionally, the limiting member is a roller rotatably disposed between the first connecting arm and the second connecting arm, and the roller is in rolling cooperation with the pull rod.

[0019] Optionally, the sluice gate further includes a drive assembly mounted on a fixed base, the drive assembly being connected to the transmission mechanism and driving the gate to swing through the transmission mechanism.

[0020] Optionally, the drive assembly includes a drive motor and a first worm gear mechanism, the output end of the drive motor being connected to the first worm gear mechanism, and the first worm gear mechanism being connected to the transmission mechanism; or, the drive assembly includes an operating handle and a second worm gear mechanism, the operating handle being connected to the second worm gear mechanism, and the second worm gear mechanism being connected to the transmission mechanism.

[0021] Optionally, the sluice gate further includes a control unit and a detection element. The drive motor and the detection element are both electrically connected to the control unit. The control unit acquires farmland water storage depth data through the detection element and controls the drive motor to work based on the farmland water storage depth data.

[0022] Optionally, the fixing base includes a base, side walls disposed on both sides of the base, and a rectangular frame disposed between the base and the side walls, the rectangular frame enclosing to form the water inlet.

[0023] Optionally, the sluice gate further includes a sealing gasket, the size of which is larger than the outer contour size of the gate. The gate is fixedly installed at the middle position of the sealing gasket, and the bottom edge and the two side edges of the sealing gasket are respectively fixedly connected to the bottom edge and the two side edges of the rectangular frame.

[0024] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0025] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0026] Figure 1 A schematic diagram of a water gate for farmland irrigation provided in an embodiment of this application;

[0027] Figure 2 A schematic diagram of the sluice gate from another perspective;

[0028] Figure 3 This is a schematic diagram of the transmission mechanism;

[0029] Figure 4 This is an exploded view of the transmission mechanism;

[0030] Figure 5 This is a schematic diagram of the structure of a sluice gate in one optional implementation.

[0031] The components include: 1. Fixed base; 10. Base; 11. Side wall; 12. Rectangular frame; 120. Water inlet; 2. Gate; 20. Displacement sensor receiver; 3. Transmission mechanism; 30. Fixed frame; 31. Drive wheel; 32. Pull rod; 320. Limit screw; 321. Displacement sensor transmitter; 33. Limit frame; 330. First connecting arm; 331. Second connecting arm; 332. Roller; 34. Traction rope; 4. Drive motor; 40. Solar panel; 5. First worm gear mechanism; 6. Operating handle; 7. Second worm gear mechanism; 8. Sealing gasket. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0033] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0034] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] This embodiment provides a water gate for farmland irrigation, such as Figure 1 and Figure 2 As shown, the sluice gate includes a fixed base 1, a gate 2, and a transmission mechanism 3. The fixed base 1 has a water inlet 120. The lower end of the gate 2 is sway-connected to the fixed base 1, and the gate 2 can switch between a closed and open / closed state relative to the fixed base 1 through a swaying motion. It is easy to understand that when the gate 2 is in the closed state, it closes the water inlet 120; when the gate 2 is in the open / closed state, it opens the water inlet 120. The transmission mechanism 3 is connected to the gate 2 and is configured to drive the gate 2 to sway relative to the fixed base 1 in response to an external force.

[0037] The transmission mechanism 3 is connected to the gate 2 and drives the gate 2 to swing. This allows the gate 2 to open and close relative to the water inlet 120, while also preventing the power unit from being contaminated by dirt.

[0038] Furthermore, the transmission mechanism 3 in this embodiment includes a fixed frame 30, a drive wheel 31, a pull rod 32, and a limiting frame 33. The fixed frame 30 is fixedly mounted on the fixed base 1, the drive wheel 31 is rotatably mounted on the fixed frame 30, the bottom end of the pull rod 32 is hinged to the gate 2, and the limiting frame 33 is mounted on the fixed frame 30 and used to prevent the pull rod 32 from detaching from the fixed frame 30. The pull rod 32 is configured to move under the drive of the drive wheel 31 and cause the gate 2 to swing. With the above structural design, the fixed frame 30, drive wheel 31, and limiting frame 33 in the transmission mechanism 3 will not undergo spatial positional changes relative to the fixed base 1 (the drive wheel 31 will rotate relative to the fixed base 1, but the overall position will not change). Only the pull rod 32 will undergo positional changes relative to the fixed base 1, but dirt is difficult to transfer from the pull rod 32 to the external power structure that applies force to the transmission mechanism 3.

[0039] Specifically in this embodiment, combined with Figure 3 and Figure 4 As shown, the transmission mechanism 3 also includes a transmission structure disposed between the drive wheel 31 and the pull rod 32. The transmission structure is a traction rope 34, one end of which is wound around the drive wheel 31, and the other end of which is fixedly connected to the bottom end of the pull rod 32. The traction rope 34 is a steel wire rope. By applying force to the drive wheel 31 from the outside and causing the drive wheel 31 to rotate, the pull rod 32 can be pulled by the traction rope 34. Since the lower end of the pull rod 32 is movably hinged to the gate 2, the pull rod 32 will not only move along the axial direction of the traction rope 34, but will also swing under the push of the gate 2.

[0040] Of course, in other alternative embodiments, the transmission mechanism 3 may also include a drive gear disposed on the drive wheel 31 and a transmission gear disposed on the pull rod 32, with the drive gear and transmission gear meshing with each other. In other words, in this embodiment, the drive wheel 31 is a gear structure, and the pull rod 32 is a rack structure, with the drive wheel 31 and the pull rod 32 cooperating to form a gear and rack transmission structure. In this case, the drive wheel 31 can also drive the pull rod 32 to move along the length direction of the pull rod 32 by rotating, and at the same time, the pull rod 32 will also swing under the pushing action of the gate 2.

[0041] As mentioned earlier, during the operation of the sluice gate, as the gate 2 swings, the gate 2 exerts a force on the pull rod 32 through its movable hinge joint with the pull rod 32, causing the pull rod 32 to swing under the action of the gate 2. By setting a limiting frame 33, the pull rod 32 can be prevented from disengaging from the drive wheel 31 during the swinging motion, ensuring that the pull rod 32 can continuously and stably transmit the force of the drive wheel 31 to the gate 2 and drive the gate 2 to swing. Specifically, the limiting frame 33 in this embodiment includes a first connecting arm 330, a second connecting arm 331, and a limiting member fixedly disposed between the first connecting arm 330 and the second connecting arm 331. The first connecting arm 330 and the second connecting arm 331 are located on both sides of the fixed frame 30 and are rotatably connected to the fixed frame 30. The limiting member, the first connecting arm 330, the second connecting arm 331, and the fixed frame 30 enclose a limiting cavity, through which the pull rod 32 passes. With the above structural design, the first connecting arm 330, the second connecting arm 331 and the limiting member can limit the pull rod 32. At the same time, since the first connecting arm 330 and the second connecting arm 331 are rotatably connected to the fixed frame 30, when the pull rod 32 swings, the entire limiting frame 33 can swing with the pull rod 32 to avoid jamming.

[0042] Furthermore, in this embodiment, the limiting component is a roller 332 rotatably disposed between the first connecting arm 330 and the second connecting arm 331, and the roller 332 rolls with the pull rod 32. Through this structural design, the force between the pull rod 32 and the limiting component can be reduced. Thus, while ensuring the limiting component can effectively limit the pull rod 32, the probability of jamming between the limiting component and the pull rod 32 can be further reduced.

[0043] To achieve automated operation and improve work efficiency, the sluice gate provided in this embodiment also includes a drive assembly mounted on the fixed base 1. The drive assembly is connected to the transmission mechanism 3 and drives the gate 2 to swing through the transmission mechanism 3. Specifically, in this embodiment, the drive assembly includes a drive motor 4 and a first worm gear mechanism 5. The output end of the drive motor 4 is connected to the first worm gear mechanism 5, and the first worm gear mechanism 5 is connected to the transmission mechanism 3. When working, the drive motor 4 can drive the drive wheel 31 to rotate clockwise and counterclockwise by rotating in both directions. When it is necessary to close the gate 2, the drive motor 4 drives the drive wheel 31 to rotate and wind the traction rope 34, thereby pulling the lever 32 upward, which in turn drives the gate 2 to swing upward and close. When it is necessary to open the gate 2, the drive motor 4 drives the drive wheel 31 to rotate and releases the traction rope 34. Under the action of the gravity of the gate 2 (in reality, the force of the water flow impact also plays a role), the gate 2 swings downward, thereby pushing the lever 32 downward until the drive motor 4 stops working.

[0044] In addition, combined Figure 3 and Figure 4 As shown, in this embodiment, a limiting screw 320 is also provided at the top of the pull rod 32. When the gate 2 is fully open, the limiting screw 320 can interfere with the first connecting arm 330 and the second connecting arm 331, thereby limiting the gate 2 from continuing to open and preventing the gate 2 from over-opening and closing. Furthermore, in order to detect the travel distance of the pull rod 32 (the travel distance can be used to determine the degree of opening and closing of the pull rod 32), a displacement sensor transmitter 321 and a displacement sensor receiver 20 are respectively provided at the top and bottom of the pull rod 32 in this embodiment. Specifically, the displacement sensor transmitter 321 is fixedly installed at the top of the pull rod 32 and can move synchronously with the pull rod 32; the displacement sensor receiver 20 is fixedly installed on the gate 2, and the displacement sensor receiver 20 is located at the movable hinge point between the gate 2 and the pull rod 32. Thus, through the cooperation of the displacement sensor transmitter 321 and the displacement sensor receiver 20, the travel distance of the pull rod 32 can be detected, thereby obtaining the opening and closing degree data of the gate 2.

[0045] In this embodiment, the first worm gear mechanism 5 enables the drive assembly to have a self-locking function, ensuring that the gate 2 remains stable after opening and extending the service life of the drive motor 4. Furthermore, to increase the online operating time of the drive motor 4, the drive assembly in this embodiment also includes a solar panel 40 mounted on the drive motor 4, which provides power to the drive motor 4.

[0046] To further enhance automation, the sluice gate provided in this embodiment also includes a control unit and a detection element. Both the drive motor 4 and the detection element are electrically connected to the control unit. The control unit acquires farmland water depth data through the detection element and controls the drive motor 4 based on this data. A water level gauge or other detector capable of detecting water depth data can be used as the detection element. The required farmland water depth is set according to actual needs. When the actual water depth is less than the required farmland water depth, the control unit controls the drive motor 4 to open the gate 2 to irrigate the farmland until the required water depth is reached. Then, the control unit controls the drive motor 4 to close the gate 2.

[0047] In addition, current farmland irrigation generally employs surge irrigation, which involves segmenting irrigation channels and controlling irrigation duration for a single field. Before the water reaches the end of the field, the irrigation water flow path is altered, utilizing the inertia of the water flow to propel it forward, thus more evenly wetting the farmland and reducing deep seepage and insufficient water at the tail end. When using this irrigation method, the water depth on the inlet side needs to be considered. Only when the water depth on the inlet side reaches a set depth can the water pressure ensure sufficient water inertia to irrigate the tail end of the field. At this point, the water depth on the inlet side can be detected by a sensing element. Once the water depth reaches the set value, the control unit controls the drive motor 4 to operate, opening the gate 2 to irrigate the farmland. Furthermore, the degree of opening of the gate 2 can control the flow rate of the irrigation water, ensuring more even wetting of the farmland.

[0048] In some alternative implementations, for cost control purposes, the drive motor 4 may be omitted, and a force may be applied to the transmission mechanism 3 manually to drive the gate 2 to swing. Specifically, such as... Figure 5 As shown, the drive assembly in this embodiment includes an operating handle 6 and a second worm gear mechanism 7. The operating handle 6 is connected to the second worm gear mechanism 7, and the second worm gear mechanism 7 is connected to the transmission mechanism 3. In this embodiment, the second worm gear mechanism 7 and the first worm gear mechanism 5 have the same structure and size design. The operating handle 6 is keyed to the second worm gear mechanism 7, and the output end of the drive motor 4 is also keyed to the first worm gear mechanism 5. This allows the user to quickly replace the operating handle 6 or the drive motor 4 as needed.

[0049] like Figure 1 and Figure 2 As shown, the fixing base 1 in this embodiment includes a base 10, side walls 11 disposed on both sides of the base 10, and a rectangular frame 12 disposed between the base 10 and the side walls 11. The rectangular frame 12 encloses and forms an irrigation inlet 120. The fixing base 1 facilitates the assembly and operation of the sluice gate on the farmland site.

[0050] Furthermore, the sluice gate provided in this embodiment also includes a sealing gasket 8. The size of the sealing gasket 8 is larger than the outer contour size of the gate 2. The gate 2 is fixedly installed at the middle position of the sealing gasket 8, and the bottom edge and two side edges of the sealing gasket 8 are respectively fixedly connected to the bottom edge and two side edges of the rectangular frame 12. The above structural design can improve the sealing performance between the gate 2 and the inner wall edge of the rectangular frame 12. In addition, during the opening and closing of the gate 2, since the bottom edge and side edges of the sealing gasket 8 are respectively fixedly connected to the bottom edge and two side edges of the rectangular frame 12, mud, stones and other debris will not enter between the inner wall of the rectangular frame 12 and the sealing gasket 8, thereby avoiding the problem of debris causing jamming of the gate 2.

[0051] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A sluice gate for farmland irrigation, characterized in that, The sluice gate includes: A fixed base (1) having a water inlet (120); The gate (2), the lower end of which is sway-connected to the fixed seat (1) and can switch between a closed state and an open / closed state relative to the fixed seat (1) by swaying motion; and, The transmission mechanism (3) is connected to the gate (2) and can drive the gate (2) to swing relative to the fixed seat (1) in response to external forces; When the gate (2) is in the closed state, it will close the water inlet (120); when the gate (2) is in the open / closed state, it will open the water inlet (120).

2. The sluice gate as described in claim 1, characterized in that, The transmission mechanism (3) includes: A fixing frame (30) is fixedly mounted on the fixing base (1); A drive wheel (31) is rotatably mounted on the fixed frame (30); A pull rod (32), the bottom end of which is movably hinged to the gate (2); and, A limiting bracket (33) is provided on the fixed bracket (30) and is used to limit the pull rod (32) from disengaging from the fixed bracket (30); The lever (32) is configured to move under the drive of the drive wheel (31) and cause the gate (2) to swing.

3. The sluice gate as described in claim 2, characterized in that, The transmission mechanism (3) further includes a transmission structure disposed between the drive wheel (31) and the pull rod (32). The transmission structure is a traction rope (34). One end of the traction rope (34) is wound around the drive wheel (31), and the other end of the traction rope (34) is fixedly connected to the bottom end of the pull rod (32). Alternatively, the transmission structure includes a drive tooth disposed on the drive wheel (31) and a transmission tooth disposed on the pull rod (32), wherein the drive tooth and the transmission tooth mesh with each other.

4. The sluice gate as described in claim 2, characterized in that, The limiting frame (33) includes a first connecting arm (330), a second connecting arm (331), and a limiting member fixedly disposed between the first connecting arm (330) and the second connecting arm (331). The first connecting arm (330) and the second connecting arm (331) are respectively located on both sides of the fixed frame (30) and are rotatably connected to the fixed frame (30). The limiting member, the first connecting arm (330), the second connecting arm (331) and the fixing frame (30) surround to form a limiting cavity, and the pull rod (32) is disposed through the limiting cavity.

5. The sluice gate as described in claim 4, characterized in that, The limiting member is a roller (332) rotatably disposed between the first connecting arm (330) and the second connecting arm (331), and the roller (332) rolls with the pull rod (32).

6. The sluice gate as described in any one of claims 1 to 5, characterized in that, The sluice gate also includes a drive assembly mounted on a fixed base (1), which is connected to the transmission mechanism (3) and drives the gate (2) to swing through the transmission mechanism (3).

7. The sluice gate as described in claim 6, characterized in that, The drive assembly includes a drive motor (4) and a first worm gear mechanism (5). The output end of the drive motor (4) is connected to the first worm gear mechanism (5), and the first worm gear mechanism (5) is connected to the transmission mechanism (3). Alternatively, the drive assembly includes an operating handle (6) and a second worm gear mechanism (7), wherein the operating handle (6) is connected to the second worm gear mechanism (7), and the second worm gear mechanism (7) is connected to the transmission mechanism (3).

8. The sluice gate as described in claim 7, characterized in that, The sluice gate also includes a control unit and a detection element. The drive motor and the detection element are both electrically connected to the control unit. The control unit obtains farmland water storage depth data through the detection element and controls the drive motor to work based on the farmland water storage depth data.

9. The sluice gate as described in any one of claims 1 to 5, characterized in that, The fixed base (1) includes a base (10), side walls (11) disposed on both sides of the base (10), and a rectangular frame (12) disposed between the base (10) and the side walls (11), the rectangular frame (12) enclosing to form the water inlet (120).

10. The sluice gate as described in claim 9, characterized in that, The sluice gate also includes a sealing gasket (8), the size of which is larger than the outer contour size of the gate (2). The gate (2) is fixedly installed in the middle position of the sealing gasket (8), and the bottom edge and the two side edges of the sealing gasket (8) are respectively fixedly connected to the bottom edge and the two side edges of the rectangular frame (12).

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