Water conservancy facility for farm irrigation and use method thereof

Abstract

The water conservancy facility for farm irrigation comprises a fixing plate, a water inlet is formed in the fixing plate, a gate groove is formed in the side wall of the water inlet, a gate plate body used for closing or opening the water inlet is movably arranged in the gate groove, a driving handle is fixedly connected to the upper end of the gate plate body, and the driving handle is fixedly connected to the lower end of the gate plate body. The upper end of the driving handle is fixedly connected with the driving end of the driver, and the device further comprises a control mechanism which is used for controlling the amount of water entering the farmland in real time according to the water level in the farmland; the structure of an existing water conservancy facility for farmland irrigation is improved, the control mechanism is arranged in the improved equipment and used for controlling the amount of water entering a farmland in real time according to the water level in the farmland, so that the amount of water input into the farmland can be controlled, and the situation that when the water in the farmland exceeds the standard range, the water in the farmland cannot flow out of the standard range is avoided. And the problem of water resource waste is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy facilities, and in particular to a water conservancy facility for farmland irrigation and a use method thereof. Background Art

[0002] The amount of water in farmland is directly related to the growth of crops. The traditional artificial regulation method is to open a gap on the bank of each rice field, and the water flows into the farmland through the gap. The amount of water entering the farmland is obtained by artificial observation. In order to better irrigate, the amount of water that exceeds the standard range is often irrigated in the farmland to achieve the effect of effective irrigation. However, this traditional irrigation method will lead to water waste due to the large amount of water poured in. In order to solve the above problems, the present invention proposes a water conservancy facility for farmland irrigation and a method of using the same. Summary of the invention

[0003] To achieve the above-mentioned purpose, the present invention provides a water conservancy facility for farmland irrigation, including a fixed plate, a water inlet is provided on the fixed plate, a gate groove is provided on the side wall of the water inlet, a gate body for closing or opening the water inlet is movably arranged in the gate groove, a driving handle is fixedly connected to the upper end of the gate body, the upper end of the driving handle is fixedly connected to the driving end of the driver, and also includes a control mechanism, the control mechanism is set to control the amount of water entering the farmland in real time according to the water level in the farmland.

[0004] Optionally, the control mechanism includes a water inlet and a movable hole provided on the fixed plate, the water inlet and the movable hole being connected to each other, a first electrode contact piece being movably provided in the movable hole, a second electrode contact piece being provided below the first electrode contact piece, the second electrode contact piece being provided on the upper end surface of the supporting plate, a movable rod being fixedly connected to the lower end surface of the supporting plate, the movable rod being movably inserted in the sliding hole, the sliding hole being provided on a baffle, the baffle being fixedly provided on the side wall of the movable hole, a buoy being fixedly connected to the lower end of the movable rod, the buoy being movably provided in the movable hole, and the buoy and the wall of the movable hole being slidably provided with respect to each other.

[0005] Optionally, the control mechanism also includes a first guide support assembly, the lower end of the first guide support assembly is fixedly connected to the upper end surface of the first electrode contact sheet, the upper end of the first guide support assembly is fixedly connected to the lower end surface of the sealing plug, the sealing plug is fixedly arranged in the movable hole, the first guide support assembly includes a first guide support rod, a first guide support tube and a first guide support spring, the first guide support rod is movably inserted in the first guide support tube, the first guide support spring is wound outside the first guide support rod, and the two ends of the first guide support spring are respectively fixedly connected to the side wall of the first guide support rod and the outer side wall of the first guide support tube.

[0006] Optionally, the control mechanism also includes a second guide support assembly, the upper end of the second guide support assembly is fixedly connected to the lower end surface of the support plate, the lower end of the second guide support assembly is fixedly connected to the upper end surface of the baffle, the second guide support assembly includes a second guide support rod, a second guide support tube and a second guide support spring, the second guide support rod is movably inserted in the second guide support tube, the second guide support spring is wound outside the second guide support rod, and the two ends of the second guide support spring are respectively fixedly connected to the side wall of the second guide support rod and the outer side wall of the second guide support tube.

[0007] Optionally, a sealing mechanism is also included, which includes a first sealing plug assembly and a second sealing plug assembly, wherein the first sealing plug assembly and the second sealing plug assembly are both sleeved outside the moving rod, and the first sealing plug assembly and the second sealing plug assembly are respectively arranged on the upper and lower sides of the baffle, and the second sealing plug assembly includes a vertical section and a horizontal section that are connected to each other, and the vertical section and the horizontal section are both movably sleeved outside the moving rod, the vertical section is movably inserted in the sliding hole, and the horizontal section is arranged to contact the lower end surface of the baffle.

[0008] Optionally, it also includes a pressure relief mechanism, which includes a first through hole and a second through hole opened on the moving rod, the second through hole and the first through hole are connected to each other, a breathing paper is fixedly installed in the first through hole, a third through hole connected to the second through hole is opened on the support plate, the support plate and the second electrode contact piece are arranged to be in contact with each other, a third guide support assembly is fixedly connected to the lower end surface of the second electrode contact piece, and the lower end of the third guide support assembly is fixedly connected to the bottom wall of the third through hole.

[0009] Optionally, the third guide support assembly includes a third guide support rod, a third guide support tube and a third guide support spring, the third guide support rod is movably inserted in the third guide support tube, the third guide support spring is wound outside the third guide support rod, and one end of the third guide support spring is fixedly disposed on the side wall of the third guide support rod, and the other end of the third guide support spring is fixedly connected to the outer side wall of the third guide support tube.

[0010] Optionally, it also includes a locking mechanism, which includes a fourth through hole opened on the second electrode contact piece, the fourth through hole and the third through hole are interconnected, a movable piston is movably arranged in the fourth through hole, a movable rod is fixedly connected to the upper end of the movable piston, the movable rod is movably inserted into the second electrode contact piece, a reset spring is wound around the outside of the movable rod, two ends of the reset spring are respectively fixedly connected to the side wall of the fourth through hole and the side wall of the movable rod, a transverse plate is fixedly connected to the upper end side wall of the movable rod, a vertical push-pull rod is fixedly connected to the lower end surface of the transverse plate, the vertical push-pull rod is movably inserted in the fifth through hole, the fifth through hole is opened on the second electrode contact piece, the side wall of the vertical push-pull rod is hinged with a locking rod, the locking rod is movably inserted in the sixth through hole and the locking hole, the sixth through hole is opened on the second electrode contact piece, and the locking hole is opened on the supporting plate.

[0011] Optionally, the combination structure of the vertical push-pull rod and the locking rod includes two groups, and the two groups of the combination structure are symmetrically arranged about the vertical center line of the movable rod, and also include a connecting component, one end of the connecting component is connected to the side wall of the vertical push-pull rod, and the other end of the connecting component is connected to the locking rod. The connecting component is a connecting spring, and the two ends of the connecting spring are respectively fixedly connected to the side wall of the locking rod and the side wall of the vertical push-pull rod.

[0012] To achieve the above object, the present invention provides a method for using the farmland irrigation water conservancy facility, comprising the following steps:

[0013] S1: The rise of water level in the farmland will cause the buoy to move upward;

[0014] S2: The upward movement of the buoy will bring the second electrode contact piece upward. When the second electrode contact piece contacts the first electrode contact piece, the gate body is controlled to move downward to close the gate slot to stop inputting water into the farmland.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present invention improves the structure of existing water conservancy facilities for farmland irrigation. A control mechanism is arranged in the improved equipment. The control mechanism is arranged to control the amount of water entering the farmland in real time according to the water level in the farmland. In this way, the amount of water input into the farmland can be controlled, and the problem of water resource waste caused by the water in the farmland exceeding the standard range can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the water conservancy facility for farmland irrigation of the present invention;

[0018] Figure 2 The invention is a water conservancy facility for farmland irrigation Figure 1 A schematic diagram of a partial cross-sectional structure;

[0019] Figure 3 The invention is a water conservancy facility for farmland irrigation Figure 2 A schematic diagram of the enlarged structure in the middle;

[0020] Figure 4 The invention is a water conservancy facility for farmland irrigation Figure 2 A magnified schematic diagram of the structure B in the middle;

[0021] Figure 5 It is a structural schematic diagram of the sealing mechanism in the water conservancy facility for farmland irrigation of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the pressure relief mechanism in the water conservancy facility for farmland irrigation of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the locking mechanism in the water conservancy facility for farmland irrigation of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the connection components in the water conservancy facilities for farmland irrigation of the present invention;

[0025] Fig. 9 The present invention is a flow chart of the method for using the water conservancy facility for farmland irrigation.

[0026] Reference numerals

[0027] Fixed plate 1, water inlet 2, gate slot 3, gate body 4, drive handle 5, control mechanism 6, water inlet 61, moving hole 62, sealing plug 63, first electrode contact 64, first guide support assembly 65, first guide support rod 651, first guide support cylinder 652, first guide support spring 653, second electrode contact 66, supporting plate 67, moving rod 68, baffle 69, second guide support assembly 610, second guide support rod 6101, second guide support cylinder 6102, second guide support spring 6103, buoy 611, sliding hole 612, sealing machine Structure 7, first sealing plug assembly 71, second sealing plug assembly 72, vertical section 721, transverse section 722, pressure relief mechanism 8, first through hole 81, breathing paper 82, second through hole 83, third through hole 84, third guide support assembly 85, third guide support rod 851, third guide support cylinder 852, third guide support spring 853, locking mechanism 9, fourth through hole 91, movable piston 92, movable rod 93, reset spring 94, transverse plate 95, vertical push-pull rod 96, fifth through hole 98, sixth through hole 99, locking hole 910, locking rod 911, connecting assembly 10. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field to which the present invention belongs. "Including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0029] In view of the problems existing in the prior art, an embodiment of the present invention provides a farmland irrigation water conservancy facility, such as Figure 1 As shown, the water conservancy facility for farmland irrigation includes a fixed plate 1, on which a water inlet 2 is provided, and the water inlet 2 is provided for inputting water into the farmland; a gate groove 3 is provided on the side wall of the water inlet 2, and a gate body 4 for closing or opening the water inlet 2 is movably provided in the gate groove 3, and a driving handle 5 is fixedly connected to the upper end of the gate body 4, and the upper end of the driving handle 5 is fixedly connected to the driving end of a driver (not shown, the driver can be a driving cylinder, but is not limited to a driving cylinder), and the water conservancy facility for farmland irrigation also includes a control mechanism 6, and the control mechanism 6 is provided for real-time control of the amount of water entering the farmland according to the water level in the farmland.

[0030] In one embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the control mechanism 6 includes a water inlet 61 (set in the horizontal direction) and a movable hole 62 (set in the vertical direction) opened on the fixed plate 1, the water inlet 61 and the movable hole 62 are connected to each other, a first electrode contact 64 is movably arranged in the movable hole 62, a second electrode contact 66 is arranged below the first electrode contact 64, the second electrode contact 66 is arranged on the upper end surface of the supporting plate 67, a movable rod 68 is fixedly connected to the lower end surface of the supporting plate 67, the movable rod 68 is movably inserted in the sliding hole 612, the sliding hole 612 is opened on the baffle 69, the baffle 69 is fixedly set on the side wall of the movable hole 62, the lower end of the movable rod 68 is fixedly connected to a buoy 611, the buoy 611 is movably set in the movable hole 62, and the buoy 611 and the wall of the movable hole 62 are slidably set relative to each other.

[0031] The setting of the control mechanism 6 in this embodiment can control the gate body 4 to move downward to close the water inlet 2 when the water amount in the farmland exceeds the standard range; when working, as the water level in the farmland increases, the water level in the movable hole 62 will also increase accordingly, and the increase in the water level in the movable hole 62 will push the buoy 611 to move upward, and the upward movement of the buoy 611 will move the second electrode contact 66 upward through the moving rod 68 and the supporting plate 67. As the second electrode contact 66 moves upward, the second electrode contact 66 and the first electrode contact 64 will contact each other, so that the series circuit is connected, and then the driver is controlled to start working. The operation of the driver will push the gate body 4 downward by driving the handle 5, thereby completing the blocking of the water inlet 2, thereby avoiding the input of water in the farmland, thereby avoiding the water amount in the farmland exceeding the standard range.

[0032] In one embodiment, Figure 3 As shown, the control mechanism 6 also includes a first guide support component 65. The first guide support component 65 is set, and the lower end of the first guide support component 65 is fixedly connected to the upper end surface of the first electrode contact piece 64, and the upper end of the first guide support component 65 is fixedly connected to the lower end surface of the sealing plug 63, which can be used for supporting and guiding the first electrode contact piece 64 so that the first electrode contact piece 64 can only move in the vertical direction, and at the same time, it can provide power for the reset movement of the first electrode contact piece 64; the sealing plug 63 is fixedly set in the moving hole 62, and the sealing plug 63 can adopt a mesh structure, which can be used for pressure relief, Avoid excessive pressure in the moving hole 62, and at the same time, play a dust-proof role to prevent dust or solid particles from entering the moving hole 62; the first guide support assembly 65 includes a first guide support rod 651, a first guide support tube 652 and a first guide support spring 653, the first guide support rod 651 is movably inserted in the first guide support tube 652, the first guide support spring 653 is wound and arranged outside the first guide support rod 651, and the two ends of the first guide support spring 653 are respectively fixedly connected to the side wall of the first guide support rod 651 and the outer side wall of the first guide support tube 652.

[0033] In one embodiment, Figure 4As shown, the control mechanism 6 also includes a second guide support assembly 610, the upper end of the second guide support assembly 610 is fixedly connected to the lower end surface of the supporting plate 67, the lower end of the second guide support assembly 610 is fixedly connected to the upper end surface of the baffle 69, the second guide support assembly 610 includes a second guide support rod 6101, a second guide support tube 6102 and a second guide support spring 6103, the second guide support rod 6101 is movably inserted in the second guide support tube 6102, the second guide support spring 6103 is wound around the outside of the second guide support rod 6101, and the two ends of the second guide support spring 6103 are respectively fixedly connected to the side wall of the second guide support rod 6101 and the outer side wall of the second guide support tube 6102.

[0034] In this embodiment, the second guide support assembly 610 can serve as a guide and support for the movement of the support plate 67 so that the support plate 67 can only move in the vertical direction, and at the same time, can provide power for the reset movement of the support plate 67.

[0035] In the specific implementation process, on the one hand, it is necessary to seal the sliding hole 612 to prevent the water or water vapor below the baffle 69 from moving to the top of the baffle 69. In one embodiment, Figure 5 As shown, the farm irrigation water conservancy facility also includes a sealing mechanism 7, and the sealing mechanism 7 includes a first sealing plug assembly 71 and a second sealing plug assembly 72; the first sealing plug assembly 71 and the second sealing plug assembly 72 are both sleeved outside the moving rod 68, and the first sealing plug assembly 71 and the second sealing plug assembly 72 are respectively arranged on the upper and lower sides of the baffle 69, and the first sealing plug assembly 71 and the second sealing plug assembly 72 are respectively arranged to seal the sliding hole 612 from the top and bottom of the sliding hole 612, and at the same time, in the actual implementation process, the first sealing plug assembly 71 and the second sealing plug assembly 72 have a sealing effect on the sliding hole 612 from the top and bottom of the sliding hole 612. Except for the inconsistency, other characteristics are consistent. Therefore, when describing, this embodiment only describes the structure of the second sealing plug assembly 72, and does not describe the structure of the first sealing plug assembly 71; the second sealing plug assembly 72 includes a vertical section 721 and a horizontal section 722 that are interconnected, and the vertical section 721 and the horizontal section 722 are both movably mounted outside the moving rod 68, and the vertical section 721 is movably inserted in the sliding hole 612, and the horizontal section 722 is arranged to be in contact with the lower end surface of the baffle 69; the setting of the structure of the second sealing plug assembly 72 can play a better sealing role on the sliding hole 612.

[0036] During the sealing process of the baffle 69 through the sealing mechanism 7, there is a certain air pressure between the baffle 69 and the buoy 611. In order to prevent the air pressure therefrom from blocking the upward movement of the buoy 611, in one embodiment, as shown in FIG. Figure 6 As shown, the farmland irrigation water conservancy facility also includes a pressure relief mechanism 8. The setting of the pressure relief mechanism 8 can relieve the air pressure, thereby preventing the air pressure there from affecting the upward movement of the buoy 611; in one example, Figure 6 As shown, the pressure relief mechanism 8 includes a first through hole 81 and a second through hole 83 provided on the moving rod 68, the second through hole 83 and the first through hole 81 are connected to each other, a breathing paper 82 is fixedly provided in the first through hole 81, and the setting of the breathing paper 82 can block the passage of liquid water and allow gas to pass through; a third through hole 84 connected to the second through hole 83 is provided on the support plate 67, the support plate 67 and the second electrode contact piece 66 are arranged to be in contact with each other, and a third guide support assembly 85 is fixedly connected to the lower end surface of the second electrode contact piece 66, and the lower end of the third guide support assembly 85 is fixedly connected to the bottom wall of the third through hole 84.

[0037] During operation, when the air pressure there is relatively high, as the buoy 611 moves upward, the gas above the buoy 611 will be pushed through the breathing paper 82 into the second through hole 83 and the third through hole 84, and as the buoy 611 continues to move upward, the gas entering the third through hole 84 pushes the second electrode contact 66 upward and separates from the supporting plate 67, thereby allowing the gas to be discharged, thereby preventing the air pressure there from affecting the upward movement of the buoy 611.

[0038] In one embodiment, Figure 6 As shown, the third guide support assembly 85 includes a third guide support rod 851, a third guide support tube 852 and a third guide support spring 853. The third guide support rod 851 is movably inserted in the third guide support tube 852, and the third guide support spring 853 is wound around the outside of the third guide support rod 851, and one end of the third guide support spring 853 is fixedly arranged on the side wall of the third guide support rod 851, and the other end of the third guide support spring 853 is fixedly connected to the outer wall of the third guide support tube 852.

[0039] In this embodiment, the third guide support assembly 85 can serve as a guide and limiter for the movement of the second electrode contact piece 66 so that the second electrode contact piece 66 only moves in the vertical direction, and can also provide a reset force for the reset process of the second electrode contact piece 66.

[0040] In order to avoid the situation that the second electrode contact sheet 66 and the supporting plate 67 are separated from each other due to non-gas push, in one embodiment, as Figure 7As shown, the farm irrigation water conservancy facility also includes a locking mechanism 9. The setting of the locking mechanism 9 can lock the second electrode contact piece 66 and the supporting plate 67, ensuring that the second electrode contact piece 66 and the supporting plate 67 will only be separated under the push of gas; Figure 7 In the example, the locking mechanism 9 includes a fourth through hole 91 provided on the second electrode contact piece 66, the fourth through hole 91 is communicated with the third through hole 84, a movable piston 92 is movably provided in the fourth through hole 91, a movable rod 93 is fixedly connected to the upper end of the movable piston 92, the movable rod 93 is movably plugged into the second electrode contact piece 66, a reset spring 94 is wound around the outside of the movable rod 93, the two ends of the reset spring 94 are respectively fixedly connected to the side wall of the fourth through hole 91 and the side wall of the movable rod 93, and the upper end side wall of the movable rod 93 A transverse plate 95 is fixedly connected (the upper end of the movable rod 93 extends to the top of the second electrode contact piece 66), and a vertical push-pull rod 96 is fixedly connected to the lower end surface of the transverse plate 95, and the vertical push-pull rod 96 is movably inserted in the fifth through hole 98, and the fifth through hole 98 is opened on the second electrode contact piece 66. The side wall of the vertical push-pull rod 96 is hinged with a locking rod 911, and the locking rod 911 is movably inserted in the sixth through hole 99 and the locking hole 910, and the sixth through hole 99 is opened on the second electrode contact piece 66, and the locking hole 910 is opened on the supporting plate 67.

[0041] During operation, after the gas enters the third through hole 84, it will continue to enter the fourth through hole 91 upwards and push the movable piston 92 to move upwards. The upward movement of the movable piston 92 will pull the locking rod 911 upwards through the movable rod 93, the transverse plate 95 and the vertical push-pull rod 96, so that the locking rod 911 is separated from the locking hole 910. At this time, the unlocking process is realized, and the second electrode contact piece 66 and the supporting plate 67 can move away from each other; it is worth noting that when there is no gas entering the third through hole 84, under the downward thrust of the reset spring 94, the lower end of the locking rod 911 will be in the locking hole 910 through the movable rod 93, the transverse plate 95 and the vertical push-pull rod 96, thereby realizing the locking process, so that the second electrode contact piece 66 and the supporting plate 67 cannot move away from each other. In this embodiment, the structural design of the locking mechanism 9 is reasonable, and the locking rod 911 is tilted. Such a setting can prevent the second electrode contact piece 66 and the supporting plate 67 from moving away from each other in the vertical direction.

[0042] In order to achieve a better locking effect, in one embodiment, the combination structure of the vertical push-pull rod 96 and the locking rod 911 includes two groups, and the two groups of the combination structure are symmetrically arranged about the vertical center line of the movable rod 93; in order to make the vertical push-pull rod 96 and the locking rod 911 reset to the initial position without being affected by external force, in one embodiment, as Figure 8 As shown, the farm irrigation water conservancy facility also includes a connecting component 10, one end of the connecting component 10 is connected to the side wall of the vertical push-pull rod 96, and the other end of the connecting component 10 is connected to the locking rod 911. The connecting component 10 is a connecting spring (unnumbered), and the two ends of the connecting spring are respectively fixedly connected to the side wall of the locking rod 911 and the side wall of the vertical push-pull rod 96.

[0043] Of course, the connecting component 10 is not limited to the connecting spring. For example, the connecting component 10 can also be a fourth guide support component (not shown), one end of the fourth guide support component is hinged on the vertical push-pull rod 96, and the other end of the fourth guide support component is hinged on the side wall of the locking rod 911, wherein the fourth guide support component includes a fourth guide support rod, a fourth guide support tube and a fourth guide support spring, the fourth guide support rod is movably inserted in the fourth guide support tube, the fourth guide support spring is wound outside the fourth guide support rod, one end of the fourth guide support spring is fixedly connected to the side wall of the fourth guide support rod, and the other end of the fourth guide support spring is fixedly connected to the outer side wall of the fourth guide support tube.

[0044] In view of the problems existing in the prior art, an embodiment of the present invention provides a method for using the water conservancy facility for farmland irrigation, such as Fig. 9 As shown, the method of use includes the following steps:

[0045] S1: The rise of water level in the farmland will cause the buoy 611 to move upward;

[0046] S2: The upward movement of the buoy 611 will bring the second electrode contact piece 66 upward. When the second electrode contact piece 66 contacts the first electrode contact piece 64, the gate body 4 is controlled to move downward to close the gate slot 3 to stop inputting water into the farmland.

[0047] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A water conservancy facility for farmland irrigation, characterized in that: The invention comprises a fixed plate (1), wherein a water inlet (2) is provided on the fixed plate (1), a gate groove (3) is provided on the side wall of the water inlet (2), a gate body (4) for closing or opening the water inlet (2) is movably arranged in the gate groove (3), a driving handle (5) is fixedly connected to the upper end of the gate body (4), and the upper end of the driving handle (5) is fixedly connected to the driving end of a driver, and a control mechanism (6) is also included, wherein the control mechanism (6) is arranged to control the amount of water entering the farmland in real time according to the height of the water level in the farmland; the control mechanism (6) comprises a water inlet (61) and a movable hole (62) provided on the fixed plate (1), wherein the water inlet (61) and the movable hole (62) are arranged to be interconnected, A first electrode contact piece (64) is movably arranged in the movable hole (62), a second electrode contact piece (66) is arranged below the first electrode contact piece (64), the second electrode contact piece (66) is arranged on the upper end surface of the supporting plate (67), a movable rod (68) is fixedly connected to the lower end surface of the supporting plate (67), the movable rod (68) is movably inserted into the sliding hole (612), the sliding hole (612) is opened on the baffle plate (69), the baffle plate (69) is fixedly arranged on the side wall of the movable hole (62), the lower end of the movable rod (68) is fixedly connected to a buoy (611), the buoy (611) is movably arranged in the movable hole (62), and the buoy (611) and the wall of the movable hole (62) are slidably arranged relative to each other.

2. The farmland irrigation water conservancy facility according to claim 1, characterized in that: The control mechanism (6) also includes a first guide support assembly (65), the lower end of the first guide support assembly (65) is fixedly connected to the upper end surface of the first electrode contact sheet (64), the upper end of the first guide support assembly (65) is fixedly connected to the lower end surface of the sealing plug (63), the sealing plug (63) is fixedly arranged in the movable hole (62), the first guide support assembly (65) includes a first guide support rod (651), a first guide support tube (652) and a first guide support spring (653), the first guide support rod (651) is movably inserted in the first guide support tube (652), the first guide support spring (653) is wound around the outside of the first guide support rod (651), and the two ends of the first guide support spring (653) are respectively fixedly connected to the side wall of the first guide support rod (651) and the outer side wall of the first guide support tube (652).

3. The farmland irrigation water conservancy facility according to claim 1, characterized in that: The control mechanism (6) also includes a second guide support assembly (610), the upper end of the second guide support assembly (610) is fixedly connected to the lower end surface of the support plate (67), the lower end of the second guide support assembly (610) is fixedly connected to the upper end surface of the baffle (69), the second guide support assembly (610) includes a second guide support rod (6101), a second guide support tube (6102) and a second guide support spring (6103), the second guide support rod (6101) is movably inserted into the second guide support tube (6102), the second guide support spring (6103) is wound around the outside of the second guide support rod (6101), and the two ends of the second guide support spring (6103) are respectively fixedly connected to the side wall of the second guide support rod (6101) and the outer side wall of the second guide support tube (6102).

4. The farmland irrigation water conservancy facility according to claim 1, characterized in that: The invention also comprises a sealing mechanism (7), wherein the sealing mechanism (7) comprises a first sealing plug assembly (71) and a second sealing plug assembly (72), wherein the first sealing plug assembly (71) and the second sealing plug assembly (72) are both sleeved outside the moving rod (68), and the first sealing plug assembly (71) and the second sealing plug assembly (72) are respectively arranged on the upper and lower sides of the baffle (69), and the second sealing plug assembly (72) comprises a vertical section (721) and a horizontal section (722) which are connected to each other, wherein the vertical section (721) and the horizontal section (722) are both movably sleeved outside the moving rod (68), and the vertical section (721) is movably inserted into the sliding hole (612), and the horizontal section (722) is arranged to contact the lower end surface of the baffle (69) with each other.

5. The farmland irrigation water conservancy facility according to claim 4, characterized in that: It also includes a pressure relief mechanism (8), which includes a first through hole (81) and a second through hole (83) opened on the moving rod (68), the second through hole (83) and the first through hole (81) are connected to each other, a breathing paper (82) is fixedly installed in the first through hole (81), a third through hole (84) connected to the second through hole (83) is opened on the support plate (67), the support plate (67) and the second electrode contact sheet (66) are mutually abutted, a third guide support assembly (85) is fixedly connected to the lower end surface of the second electrode contact sheet (66), and the lower end of the third guide support assembly (85) is fixedly connected to the bottom wall of the third through hole (84).

6. The water conservancy facility for farmland irrigation according to claim 5, characterized in that: The third guide support assembly (85) includes a third guide support rod (851), a third guide support tube (852) and a third guide support spring (853); the third guide support rod (851) is movably inserted in the third guide support tube (852); the third guide support spring (853) is wound around the outside of the third guide support rod (851); one end of the third guide support spring (853) is fixedly arranged on the side wall of the third guide support rod (851); and the other end of the third guide support spring (853) is fixedly connected to the outer side wall of the third guide support tube (852).

7. The water conservancy facility for farmland irrigation according to claim 5, characterized in that: The device also includes a locking mechanism (9), wherein the locking mechanism (9) includes a fourth through hole (91) formed on the second electrode contact piece (66), the fourth through hole (91) being in communication with the third through hole (84), a movable piston (92) being movably arranged in the fourth through hole (91), a movable rod (93) being fixedly connected to the upper end of the movable piston (92), the movable rod (93) being movably plugged into the second electrode contact piece (66), a reset spring (94) being wound around the outside of the movable rod (93), and two ends of the reset spring (94) being respectively fixedly connected to the side wall of the fourth through hole (91) and the side wall of the movable rod (93). The upper side wall of the movable rod (93) is fixedly connected to a horizontal plate (95), and the lower end surface of the horizontal plate (95) is fixedly connected to a vertical push-pull rod (96), and the vertical push-pull rod (96) is movably inserted in a fifth through hole (98), and the fifth through hole (98) is provided on the second electrode contact sheet (66). The side wall of the vertical push-pull rod (96) is hinged with a locking rod (911), and the locking rod (911) is movably inserted in a sixth through hole (99) and a locking hole (910), and the sixth through hole (99) is provided on the second electrode contact sheet (66), and the locking hole (910) is provided on the supporting plate (67).

8. The farmland irrigation water conservancy facility according to claim 7, characterized in that: The combined structure of the vertical push-pull rod (96) and the locking rod (911) includes two groups, and the two groups of the combined structure are symmetrically arranged about the vertical center line of the movable rod (93), and also includes a connecting component (10), one end of the connecting component (10) is connected to the side wall of the vertical push-pull rod (96), and the other end of the connecting component (10) is connected to the locking rod (911), and the connecting component (10) is a connecting spring, and the two ends of the connecting spring are respectively fixedly connected to the side wall of the locking rod (911) and the side wall of the vertical push-pull rod (96).

9. A method for using a farmland irrigation water conservancy facility according to any one of claims 1 to 8, characterized in that: The steps include: S1: The rise of water level in the farmland will cause the buoy (611) to move upward; S2: The upward movement of the buoy (611) will cause the second electrode contact (66) to move upward. When the second electrode contact (66) contacts the first electrode contact (64), the gate body (4) is controlled to move downward to close the gate slot (3) to stop inputting water into the farmland.

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