Gate supporting structure for water conservancy project and method thereof

Abstract

The invention relates to the field of gate supporting, in particular to a gate supporting structure for hydraulic engineering and a method thereof.The gate supporting structure comprises a base, a plurality of gate bodies distributed at equal intervals are hinged to the interior of the base, a plurality of driving mechanisms used for driving the gate bodies to turn over are installed in the base, and the driving mechanisms correspond to the gate bodies one to one; a plurality of mounting plates are mounted in the base, a supporting mechanism is mounted on the upper surface of each mounting plate, the supporting mechanisms correspond to gate bodies one to one, and through cooperation between the driving mechanism and the supporting mechanisms, the gate bodies can be preliminarily supported through hydraulic rods; and the rotating shaft can be prevented from rotating by limiting the toothed plate, so that the gate body is further supported, the gate body can still be effectively supported in the supporting process of the gate body when the hydraulic rod breaks down, the stability of the gate body is greatly improved, and flood discharge is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of gate supports, and in particular to a gate support structure for a water conservancy project and a method thereof. Background Art

[0002] Water conservancy projects are a general term for flood control, waterlogging removal, irrigation, power generation, water supply, reclamation, soil and water conservation, immigration, water resource protection and other projects and their supporting and ancillary projects. It is a project built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. The gate is a control facility used to close and open the discharge (release) channel. It is an indispensable facility in water conservancy projects. Therefore, the quality of the gate is related to the operation of water conservancy projects. With the continuous development of science and technology, the function of water conservancy gates is also constantly improving.

[0003] A water storage dam for a river channel used in a water conservancy project with a publication number of CN215052754U comprises a base, a side plate, a bottom block, a gate plate, a mounting seat and a mounting block. The two ends of the upper surface of the base are provided with side plates, the upper surface of the base is fixedly provided with a bottom block, one side wall of the side plate is rotatably connected with a gate plate, the upper surface of the base is fixedly provided with a mounting seat, the upper surface of the mounting seat is fixedly provided with a mounting block, one side wall of the mounting block is rotatably connected with a hydraulic rod, and one side wall of the gate plate is fixedly provided with a fixing frame. By providing a base, a side plate, a bottom block, a gate plate, a mounting seat, a mounting block, a hydraulic rod, a fixing frame, a supporting frame, a connecting plate and fixing bolts, the function of supporting the gate plate is realized, and by increasing the support strength of the gate plate, the stability of the gate plate is improved, so that during the process of water storage in the river channel, the gate plate is prevented from collapsing and flood discharge is avoided, thereby improving the practicality of the water storage dam.

[0004] The above-mentioned device only increases the support strength for the gate by increasing the contact points with the gate plate. However, no matter how the contact points with the gate are increased, the support direction is consistent. When the hydraulic rod in this direction fails, it can no longer effectively support the gate. At this time, the gate will flip over by itself under the impact of the water flow, causing flood discharge.

[0005] Therefore, the present invention provides a gate supporting structure for a water conservancy project to solve the above problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a gate support structure and method for water conservancy projects to solve the problem that when the hydraulic rod fails during the process of supporting the gate, the above device cannot continue to support the gate.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A gate support structure for a water conservancy project, comprising a base, a plurality of gate bodies equidistantly distributed are hingedly connected inside the base, a plurality of driving mechanisms for driving the gate bodies to flip are installed inside the base, and the driving mechanisms correspond to the gate bodies one by one, a plurality of mounting plates are installed inside the base, a supporting mechanism is installed on the upper surface of each mounting plate, and the supporting mechanism corresponds to the gate body one by one;

[0009] The support mechanism comprises two support plates fixedly connected to the upper surface of the mounting plate, a rotating shaft is rotatably installed between the two support plates, two rotating rollers are fixedly connected to the outer surface of the rotating shaft, and telescopic rods are fixedly connected to the outer surfaces of the two rotating rollers, and two third hinge seats are installed on one side of the gate body close to the mounting plate, and the telescopic ends of the two telescopic rods are respectively hinged to the two third hinge seats;

[0010] Two gears are fixedly connected to the outer surface of the rotating shaft, two tooth plates are placed on the upper surface of the mounting plate, and the two tooth plates are respectively meshed with the two gears, a guide assembly for guiding the two tooth plates is arranged between the two support plates, and a limiting assembly is arranged between the two tooth plates, and the limiting assembly is used to limit the two tooth plates.

[0011] Preferably, the driving assembly includes a hydraulic rod, a first articulated seat and a second articulated seat, the first articulated seat is installed on the upper surface of the mounting plate, the second articulated seat is installed on a side of the gate body close to the mounting plate, the fixed end of the hydraulic rod is hinged to the first articulated seat, and the telescopic end of the hydraulic rod is hinged to the second articulated seat.

[0012] Preferably, the guide assembly includes two guide plates fixedly connected to the upper surface of the mounting plate, and the two guide plates are respectively fitted with the sides of the two tooth plates away from each other, the sides of the two tooth plates away from each other are fixedly connected with slides, and the interiors of the two guide plates are provided with guide grooves adapted to the slides, and the slides are slidably connected inside the guide grooves.

[0013] Preferably, the two sliding plates are fixedly connected to the sides away from each other with baffles, and the two baffles are respectively fitted with the sides away from each other of the two guide plates.

[0014] Preferably, the limit assembly includes a fixed block fixedly connected to the upper surface of the mounting plate, a through hole is opened inside the fixed block, a circular ring is fixedly connected to the middle of the through hole, two springs are fixedly connected to the outer surface of the circular ring, the ends of the two springs away from each other are fixedly connected to the limit rods, and the ends of the two limit rods away from each other pass through the through hole and extend to the outside of the fixed block.

[0015] Preferably, the two tooth plates are provided with a track groove and a limit hole matched with the limit rod, and the limit hole is communicated with the track groove.

[0016] Preferably, a slider is fixedly connected to the rod body of the two limit rods, a sliding groove matched with the slider is provided inside the fixed block, and the slider is slidably connected inside the sliding groove.

[0017] Preferably, a surface of the two sliding blocks away from the two limiting rods is fixedly connected to a right-angle plate, and one side of the right-angle plate is in contact with the fixing block.

[0018] Preferably, the two right-angle plates are each provided with an anti-slip layer on one side away from each other.

[0019] A method for supporting a gate structure for a water conservancy project, comprising the following steps:

[0020] When the gate needs to be opened, first use an external tool to squeeze the two right-angle plates inward. The inward movement of the right-angle plates can drive the slider and the limit rod to move inward and compress the spring. When the limit rod moves out of the inside of the limit hole, the limit on the tooth plate can be released, and then the hydraulic rod is controlled to shorten. The shortening of the hydraulic rod can drive the gate body to flip inward. The inward flipping of the gate body can press the telescopic rod to shorten and rotate accordingly. The rotation of the telescopic rod can drive the rotating roller, the rotating shaft and the gear to rotate. The rotation of the gear can drive the tooth plate to slide in the direction of the gate body. The sliding of the tooth plate in the direction of the gate body can drive the limit rod to slide along the track groove. When the limit rod slides to the end of the track groove away from the limit hole, the gate body will just flip to the specified position, and the gate body is fully opened at this time;

[0021] When the gate body needs to be closed, it is only necessary to control the extension of the hydraulic rod. The extension of the hydraulic rod can drive the gate body to flip outward. The outward flipping of the gate body can drive the telescopic rod to extend and rotate accordingly. The rotation of the telescopic rod can drive the rotating roller, the rotating shaft and the gear to rotate. The rotation of the gear can drive the tooth plate to slide in the direction away from the gate body. The sliding of the tooth plate in the direction away from the gate body can drive the limiting rod to slide along the track groove. When the limiting rod slides to one end of the track groove close to the limiting hole, under the action of the spring, one end of the limiting rod will be inserted into the inside of the limiting hole. At this time, the gate body will just flip to the specified position, thereby completing the closing of the gate body. At the same time as the closing of the gate body is completed, the tooth plate can be limited. By limiting the tooth plate, the rotating shaft can be prevented from rotating, thereby achieving further support for the gate body. In the process of supporting the gate body, even if the hydraulic rod fails, the gate body can still be effectively supported, thereby greatly improving the stability of the gate body and avoiding flood discharge.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention can not only use the hydraulic rod to initially support the gate body through the cooperation between the driving mechanism and the supporting mechanism, but also use the limit of the tooth plate to prevent the rotation of the rotating shaft to achieve further support for the gate body. Therefore, in the process of supporting the gate body, when the hydraulic rod fails, the gate body can still be effectively supported, thereby greatly improving the stability of the gate body and avoiding flood discharge.

[0024] 2. The present invention sets a guide component to guide the movement direction of the tooth plate when the gear rotates. Through the cooperation between the track groove and the spring, when the driving mechanism drives the gate body to flip upward to the specified position, the limit rod can automatically insert into the inside of the limit hole to limit the tooth plate.

[0025] 3. The present invention provides an anti-slip layer, which makes it easy to use an external tool to press the two right-angle plates inward, so that the two limiting rods are moved out from the inside of the two limiting holes, thereby releasing the limit on the tooth plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a three-dimensional structural schematic diagram of the gate body, mounting plate, driving mechanism and supporting mechanism of the present invention;

[0028] Figure 3 It is a schematic diagram of the connection between the gear and the toothed plate of the present invention;

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the tooth plate and the guide assembly of the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the tooth plate of the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting component of the present invention;

[0032] Figure 7 It is a cross-sectional view of the limiting component of the present invention.

[0033] In the figure: 1. base; 2. gate body; 3. mounting plate; 4. hydraulic rod; 5. first hinge seat; 6. second hinge seat; 7. support plate; 8. rotating shaft; 9. rotating roller; 10. telescopic rod; 11. third hinge seat; 12. gear; 13. tooth plate; 14. guide plate; 15. guide groove; 16. slide plate; 17. baffle; 18. fixing block; 19. through hole; 20. ring; 21. spring; 22. limit rod; 23. track groove; 24. limit hole; 25. slider; 26. right angle plate; 27. anti-slip layer. DETAILED DESCRIPTION

[0034] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] A gate support structure for a water conservancy project, such as Figure 1 and Figure 2 As shown, it includes a base 1, and a plurality of equally distributed gate bodies 2 are hinged inside the base 1. A plurality of driving mechanisms for driving the gate bodies 2 to flip are installed inside the base 1, and the driving mechanisms correspond to the gate bodies 2 one by one. A plurality of mounting plates 3 are installed inside the base 1, and a supporting mechanism is installed on the upper surface of each mounting plate 3, and the supporting mechanism corresponds to the gate bodies 2 one by one. The base 1 and the mounting plates 3 are connected by screws, and the mounting plates 3 are located on the side of the gate body 2 that flips inward. Through the cooperation between the driving mechanism and the supporting mechanism, not only can the hydraulic rod 4 be used to provide preliminary support to the gate body 2, but also the limiting of the tooth plate 13 can be used to prevent the rotating shaft 8 from rotating, so as to achieve further support for the gate body 2. Therefore, in the process of supporting the gate body 2, even if the hydraulic rod 4 fails, the gate body 2 can still be effectively supported, thereby greatly improving the stability of the gate body 2 and avoiding flood discharge.

[0036] like Figure 2 As shown, the driving assembly includes a hydraulic rod 4, a first articulated seat 5 and a second articulated seat 6. The first articulated seat 5 is installed on the upper surface of the mounting plate 3, and the second articulated seat 6 is installed on a side of the gate body 2 close to the mounting plate 3. The fixed end of the hydraulic rod 4 is hinged to the first articulated seat 5, and the telescopic end of the hydraulic rod 4 is hinged to the second articulated seat 6. When the hydraulic rod 4 is started, when the hydraulic rod 4 is shortened, it can drive the gate body 2 to flip inward. When the hydraulic rod 4 is extended, it can drive the gate body 2 to flip outward. When the gate body 2 flips, it can drive the hydraulic rod 4 to rotate accordingly.

[0037] like Figure 2 and Figure 3As shown, the supporting mechanism includes two supporting plates 7 fixedly connected to the upper surface of the mounting plate 3, a rotating shaft 8 is rotatably installed between the two supporting plates 7, the outer surface of the rotating shaft 8 is fixedly connected to two rotating rollers 9, the outer surfaces of the two rotating rollers 9 are fixedly connected to telescopic rods 10, and two third articulated seats 11 are installed on one side of the gate body 2 close to the mounting plate 3, the telescopic ends of the two telescopic rods 10 are respectively hinged to the two third articulated seats 11, the rotating rollers 9, the telescopic rods 10 and the third articulated seats 11 can further support the gate body 2, and when the hydraulic rod 4 controls the gate body 2 to flip, the telescopic rod 10 will perform corresponding telescopic and rotation.

[0038] like Figure 2-4 As shown, two gears 12 are fixedly connected to the outer surface of the rotating shaft 8, two tooth plates 13 are placed on the upper surface of the mounting plate 3, and the two tooth plates 13 are respectively meshed with the two gears 12, and a guide assembly for guiding the two tooth plates 13 is arranged between the two support plates 7, and the guide assembly includes two guide plates 14 fixedly connected to the upper surface of the mounting plate 3, and the two guide plates 14 are respectively fitted with the sides of the two tooth plates 13 away from each other, and the sides of the two tooth plates 13 away from each other are fixedly connected with slide plates 16, and the interiors of the two guide plates 14 are provided with guide grooves 15 adapted to the slide plates 16, and the slide plates 16 are slidably connected to the interiors of the guide grooves 15, when the gate body 2 is flipped inward, the gear 12 can be driven to rotate in the direction of the gate body 2, and the rotation of the gear 12 in the direction of the gate body 2 can drive the tooth plates 13 and the slide plates 16 to move horizontally along the guide plates 14 in the direction of the gate body 2.

[0039] like Figure 4 As shown, the two sliding plates 16 are fixedly connected to the sides away from each other with baffles 17, and the two baffles 17 are respectively fitted with the sides away from each other of the two guide plates 14. By providing the baffles 17, the sliding plates 16 can be prevented from moving out of the guide groove 15.

[0040] like Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, a limiting assembly is arranged between the two tooth plates 13, and the limiting assembly is used to limit the two tooth plates 13. The limiting assembly includes a fixing block 18 fixedly connected to the upper surface of the mounting plate 3, and a through hole 19 is opened inside the fixing block 18. A circular ring 20 is fixedly connected to the middle of the through hole 19, and two springs 21 are fixedly connected to the outer surface of the circular ring 20. The ends of the two springs 21 away from each other are fixedly connected to limiting rods 22, and the ends of the two limiting rods 22 away from each other pass through the through hole 19 and extend to the outside of the fixing block 18. The two limiting rods 22 are symmetrical about the circular ring 20, and the limiting rods 22 compress the springs 21 when they slide inward along the through hole 19.

[0041] like Figure 5 As shown, the two tooth plates 13 are provided with a track groove 23 and a limit hole 24 that are compatible with the limit rod 22, and the limit hole 24 is connected to the track groove 23. When the gate body 2 is in a vertical state, one end of the limit rod 22 will be inserted into the inside of the limit hole 24 to limit the tooth plate 13. By limiting the tooth plate 13, the rotation shaft 8 and the telescopic rod 10 can be prevented from rotating, thereby achieving further support for the gate body 2.

[0042] like Figure 6 and Figure 7 As shown, a slider 25 is fixedly connected to the rod body of the two limit rods 22, a sliding groove adapted to the slider 25 is opened inside the fixed block 18, and the slider 25 is slidably connected inside the sliding groove, and a side of the two sliders 25 away from the two limit rods 22 is fixedly connected to a right-angle plate 26, and one side of the right-angle plate 26 is in contact with the fixed block 18, and a non-slip layer 27 is provided on the side of the two right-angle plates 26 away from each other. By providing the non-slip layer 27, it is convenient to use an external tool to squeeze the two right-angle plates 26 inward, and the movement of the right-angle plate 26 can drive the slider 25 and the limit rod 22 to move accordingly, so that the two limit rods 22 can be moved out from the inside of the two limit holes 24, and then the limit on the tooth plate 13 can be released.

[0043] Working principle: when it is necessary to open the gate, first use an external tool (such as calipers) to squeeze the two right-angle plates 26 inwardly. The inward movement of the right-angle plates 26 can drive the slider 25 and the limit rod 22 to move inward and compress the spring 21. When the limit rod 22 moves out from the inside of the limit hole 24, the limit on the tooth plate 13 can be released, and then the hydraulic rod 4 is controlled to shorten. The shortening of the hydraulic rod 4 can drive the gate body 2 to flip inward. The inward flipping of the gate body 2 can press the telescopic rod 10 to shorten and rotate accordingly. The rotation of the telescopic rod 10 can drive the rotating roller 9, the rotating shaft 8 and the gear 12 to rotate. The rotation of the gear 12 can drive the tooth plate 13 to slide in the direction of the gate body 2. The sliding of the tooth plate 13 in the direction of the gate body 2 can drive the limit rod 22 to slide along the track groove 23. When the limit rod 22 slides to the end of the track groove 23 away from the limit hole 24, the gate body 2 will just flip to the specified position, and the gate body 2 is fully opened at this time.

[0044] When the gate body 2 needs to be closed, it is only necessary to control the extension of the hydraulic rod 4. The extension of the hydraulic rod 4 can drive the gate body 2 to flip outward. The outward flipping of the gate body 2 can drive the telescopic rod 10 to extend and rotate accordingly. The rotation of the telescopic rod 10 can drive the rotating roller 9, the rotating shaft 8 and the gear 12 to rotate. The rotation of the gear 12 can drive the tooth plate 13 to slide in the direction away from the gate body 2. The sliding of the tooth plate 13 in the direction away from the gate body 2 can drive the limiting rod 22 to slide along the track groove 23. When the limiting rod 22 slides to one end of the track groove 23 close to the limiting hole 24, under the action of the spring 21, One end of the limiting rod 22 will be inserted into the limiting hole 24. At this time, the gate body 2 will just flip to the specified position, thereby completing the closing of the gate body 2. At the same time, the tooth plate 13 can be limited. By limiting the tooth plate 13, the rotation shaft 8 can be prevented from rotating, thereby achieving further support for the gate body 2. In the process of supporting the gate body 2, when the hydraulic rod 4 fails, the gate body 2 can still be effectively supported, thereby greatly improving the stability of the gate body 2 and avoiding flood discharge.

[0045] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In addition, it should be noted that in the description of the present invention, 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A gate support structure for a water conservancy project, comprising a base (1), characterized in that: The base (1) is hinged with a plurality of equally spaced gate bodies (2) inside, the base (1) is installed with a plurality of driving mechanisms for driving the gate bodies (2) to flip, and the driving mechanisms correspond one to one with the gate bodies (2), the base (1) is installed with a plurality of mounting plates (3), the upper surface of each mounting plate (3) is installed with a supporting mechanism, and the supporting mechanism corresponds one to one with the gate bodies (2); The support mechanism comprises two support plates (7) fixedly connected to the upper surface of the mounting plate (3), a rotating shaft (8) is rotatably mounted between the two support plates (7), two rotating rollers (9) are fixedly connected to the outer surface of the rotating shaft (8), and the outer surfaces of the two rotating rollers (9) are fixedly connected to telescopic rods (10), and two third hinge seats (11) are installed on a side of the gate body (2) close to the mounting plate (3), and the telescopic ends of the two telescopic rods (10) are respectively hinged to the two third hinge seats (11); Two gears (12) are fixedly connected to the outer surface of the rotating shaft (8); two tooth plates (13) are placed on the upper surface of the mounting plate (3), and the two tooth plates (13) are respectively meshed with the two gears (12); a guide assembly for guiding the two tooth plates (13) is arranged between the two support plates (7); a limit assembly is arranged between the two tooth plates (13), and the limit assembly is used to limit the two tooth plates (13).

2. A gate support structure for a water conservancy project according to claim 1, characterized in that: The driving assembly comprises a hydraulic rod (4), a first articulated seat (5) and a second articulated seat (6), wherein the first articulated seat (5) is mounted on the upper surface of the mounting plate (3), and the second articulated seat (6) is mounted on a side of the gate body (2) close to the mounting plate (3). The fixed end of the hydraulic rod (4) is articulated with the first articulated seat (5), and the telescopic end of the hydraulic rod (4) is articulated with the second articulated seat (6).

3. A gate support structure for a water conservancy project according to claim 1, characterized in that: The guide assembly comprises two guide plates (14) fixedly connected to the upper surface of the mounting plate (3), and the two guide plates (14) are respectively fitted with the mutually distant sides of the two tooth plates (13), and the mutually distant sides of the two tooth plates (13) are both fixedly connected with a slide plate (16), and the inside of the two guide plates (14) is provided with a guide groove (15) adapted to the slide plate (16), and the slide plate (16) is slidably connected inside the guide groove (15).

4. A gate support structure for a water conservancy project according to claim 3, characterized in that: The two sliding plates (16) are fixedly connected to the sides away from each other with baffles (17), and the two baffles (17) are respectively fitted to the sides away from each other of the two guide plates (14).

5. A gate support structure for a water conservancy project according to claim 1, characterized in that: The limit assembly comprises a fixed block (18) fixedly connected to the upper surface of the mounting plate (3); a through hole (19) is provided inside the fixed block (18); a circular ring (20) is fixedly connected to the middle of the through hole (19); two springs (21) are fixedly connected to the outer surface of the circular ring (20); the ends of the two springs (21) that are away from each other are fixedly connected to a limit rod (22); the ends of the two limit rods (22) that are away from each other pass through the through hole (19) and extend to the outside of the fixed block (18).

6. A gate support structure for a water conservancy project according to claim 5, characterized in that: The two tooth plates (13) are both provided with a track groove (23) and a limit hole (24) adapted to the limit rod (22), and the limit hole (24) is communicated with the track groove (23).

7. A gate support structure for a water conservancy project according to claim 5, characterized in that: The rod bodies of the two limit rods (22) are fixedly connected with sliders (25), the interior of the fixed block (18) is provided with a sliding groove matched with the slider (25), and the slider (25) is slidably connected inside the sliding groove.

8. A gate support structure for a water conservancy project according to claim 7, characterized in that: A right-angle plate (26) is fixedly connected to one side of the two sliding blocks (25) away from the two limiting rods (22), and one side of the right-angle plate (26) is in contact with the fixed block (18).

9. A gate support structure for a water conservancy project according to claim 8, characterized in that: The two right-angle plates (26) are both provided with an anti-slip layer (27) on the sides away from each other.

10. The method for supporting a gate structure for a hydraulic engineering project according to claim 9, characterized in that: The steps are: When the gate needs to be opened, firstly, an external tool is used to press the two right-angle plates (26) inwardly. The inward movement of the right-angle plates (26) can drive the slider (25) and the limit rod (22) to move inwardly and compress the spring (21). When the limit rod (22) moves out of the limit hole (24), the limit on the tooth plate (13) can be released. Then, the hydraulic rod (4) is controlled to shorten. The shortening of the hydraulic rod (4) can drive the gate body (2) to flip inward. The inward flipping of the gate body (2) can press the telescopic rod (10) to shorten and perform the corresponding Rotate, the rotation of the telescopic rod (10) can drive the rotating roller (9), the rotating shaft (8) and the gear (12) to rotate, the rotation of the gear (12) can drive the toothed plate (13) to slide in the direction of the gate body (2), the sliding of the toothed plate (13) in the direction of the gate body (2) can drive the limiting rod (22) to slide along the track groove (23), when the limiting rod (22) slides to the end of the track groove (23) away from the limiting hole (24), the gate body (2) will just flip to the specified position, at which time the gate body (2) is completely opened; When the gate body (2) needs to be closed, it is only necessary to control the hydraulic rod (4) to extend. The extension of the hydraulic rod (4) can drive the gate body (2) to flip outward. The flipping outward of the gate body (2) can drive the telescopic rod (10) to extend and rotate accordingly. The rotation of the telescopic rod (10) can drive the rotating roller (9), the rotating shaft (8) and the gear (12) to rotate. The rotation of the gear (12) can drive the tooth plate (13) to slide in a direction away from the gate body (2). The sliding of the tooth plate (13) in a direction away from the gate body (2) can drive the limiting rod (22) to slide along the track groove (23). When the limiting rod (22) slides to one end of the track groove (23) close to the limiting hole (24), the spring (24) is engaged. Under the action of the limit rod (21), one end of the limit rod (22) will be inserted into the inside of the limit hole (24), and the gate body (2) will just flip to the specified position, thereby completing the closing of the gate body (2). At the same time as the closing of the gate body (2) is completed, the tooth plate (13) can be limited. By limiting the tooth plate (13), the rotation of the rotating shaft (8) can be prevented, thereby achieving further support for the gate body (2). Furthermore, in the process of supporting the gate body (2), even if the hydraulic rod (4) fails, the gate body (2) can still be effectively supported, thereby greatly improving the stability of the gate body (2) and avoiding flood discharge.

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