Water gate opening and closing automatic cleaning device

Abstract

The invention discloses a water gate opening and closing automatic cleaning device, and relates to the technical field of water gate cleaning equipment, the water gate opening and closing automatic cleaning device comprises a gate capable of lifting and moving, an intercepting grid capable of synchronously moving along the same direction with the gate is fixedly mounted in front of the gate, and a containing plate capable of synchronously moving along the opposite direction with the gate is arranged behind the gate; when the water gate is opened and moves and ascends, the intercepting grid carries pollutants on the front side of the gate to synchronously ascend, and the containing plate moves and descends and falls to the bottom end of the water gate. The device further comprises a movable intercepting baffle which is arranged behind the gate. When the gate is opened, pollutants collected in the intercepting grid are cleaned or pollutants in the containing plate are cleaned when the gate is closed, and a water flow flowing through the gate is filtered all the time. And along with opening and closing of the gate, pollutants collected by the intercepting fence and the accommodating plate can be cleaned respectively. And the working efficiency of pollutant cleaning operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sluice cleaning equipment, and in particular to an automatic cleaning device for opening and closing a sluice. Background Art

[0002] During the operation of sluice gates, various pollutants such as branches, leaves, weeds, household garbage, plastic products, foam, aquatic plants, and even large floating objects (such as tree trunks and discarded furniture) often float in rivers and channels. Without trash racks, these pollutants can directly impact or accumulate on the gates, piers, and water-passing openings (holes in the gate bottom edge or leaf). In severe cases, the gates cannot be fully closed or opened, compromising water flow regulation and flood control safety. Furthermore, the core of a sluice gate is the gate and its operating and closing components. Pollutants can accumulate on the gate's lifting lugs, pull rods, pulleys, wire ropes, or hydraulic rods. This can overload the gate and its operating and closing components, causing the gate to become stuck and inoperable, making repair difficult and costly. Therefore, the use of filter racks during sluice gate operation protects the safe and efficient operation of the gate and its associated equipment and reduces maintenance requirements.

[0003] Existing equipment for intercepting pollutants from water flowing through sluice gates mostly uses a separate filter screen structure to filter the water. As the sluice gate operates, the filter screen needs to be cleaned regularly. During this cleaning process, the gates must be closed, and the filter screen requires additional salvaging machinery to remove the pollutants. This cleaning process is time-consuming and affects work efficiency. Therefore, the present invention provides an automatic cleaning device for sluice gate opening and closing to meet this need. Summary of the Invention

[0004] In view of the above problems, the present invention provides an automatic cleaning device for opening and closing a sluice gate.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic cleaning device for opening and closing a sluice gate, comprising a gate that can be raised and lowered, an interception fence that can be moved synchronously with the gate in the same direction is fixedly installed in front of the gate, and a receiving plate that can be moved synchronously with the gate in the opposite direction is provided behind the gate. When the sluice gate is opened and the gate moves up, the interception fence carrying the pollutants on the front side of the gate rises synchronously, and the receiving plate moves down and falls to the bottom of the sluice gate.

[0006] The system also includes a movable intercepting baffle, located behind the gate and in an upright position. When the gate rises and the receiving plate descends, the intercepting baffle moves toward the receiving plate, abutting against the rear end of the receiving plate and intercepting pollutants that pass through the gate when it is open. When the gate descends and the receiving plate ascends, the intercepting baffle moves away from the receiving plate until pollutants accumulated on the receiving plate and its surface are moved above the sluice gate.

[0007] Furthermore, an electric screw rod adapted to it is installed on the back of the gate, and first follower arms that move synchronously with it are fixed at the left and right ends of the intercepting fence. The rear sides of the two first follower arms are connected to the first driving gear through vertically distributed racks. When the intercepting fence moves up and down, the first follower arm moves synchronously and the first driving gear rotates.

[0008] Furthermore, second follower arms that move synchronously with the accommodating plate are fixed at both the left and right ends, and the front sides of the two second follower arms are connected to second drive gears through vertically distributed racks. The second drive gear is located directly behind the first drive gear. When the second drive gear rotates, the second follower arm and the accommodating plate move synchronously.

[0009] Furthermore, the first drive gear and the second drive gear are respectively fixedly mounted with a first drive wheel and a second drive wheel coaxially distributed therewith, and the first drive wheel and the second drive wheel are connected by a synchronous belt. When the gate, the intercepting fence and the first follower arm move up or down, the first drive gear, the first drive wheel, the second drive gear and the second drive wheel rotate synchronously in the same direction, and the second follower arm and the accommodating plate move in the opposite direction of the gate.

[0010] Furthermore, a linkage arm is fixedly installed on the rear side of the second follower arm, and the rear sides of the two linkage arms are meshed with a linkage gear through a vertically distributed rack. The linkage gear is fixedly installed with a guide gear coaxially distributed with the second follower arm on the side close to the second follower arm, and a reduction gear is meshed with the rear of the guide gear, and a guide rack is meshed with the bottom of the reduction gear. The two guide racks are fixedly installed with the intercepting baffle. As the second follower arm and the linkage arm move up and down, the linkage gear and the guide gear rotate synchronously, and the reduction gear rotates in the opposite direction of the guide gear until the guide rack and the intercepting baffle move synchronously.

[0011] Furthermore, two groups of symmetrically distributed limiting roller groups are fixedly installed on the lower rear side of the gate, and two vertically distributed guide rails are provided on the rear side of the gate. The limiting roller groups are slidably connected to the guide rails, and mounting pillars are fixed on the sides of the guide rails. The two mounting pillars are respectively located on the left and right sides of the gate. When the gate moves up and down along the distribution path of the mounting pillars, the limiting roller groups slide inside the guide rails.

[0012] Furthermore, the top ends of the two mounting pillars are fixedly connected to a carrier plate, and each carrier plate is provided with a vertically distributed first limiting rail and a horizontally distributed second limiting rail. The first follower arm and the second follower arm are both slidably connected to the first limiting rail, and the guide rack is slidably connected to the second limiting rail.

[0013] Furthermore, side panels are fixedly installed on the first limiting rails located at the same end, two groups of the first driving gears and the first driving wheel are rotatably installed with the two side panels respectively, two groups of the second driving gears and the second driving wheel, the linkage gear and the guide gear and the two reduction gears are all connected through a synchronous rotating shaft, and both ends of the three synchronous rotating shafts are rotatably installed with the side panels.

[0014] Furthermore, the top ends of the two groups of the first position-limiting rails are fixed to each other through a top plate, and the electric screw is installed on the top plate.

[0015] In summary, the technical effects and advantages of the present invention are as follows:

[0016] 1. The interception grid and the receiving plate of the present invention can switch positions as the gate operates, adapting to the gate's opening and closing motion. Whether cleaning pollutants collected inside the interception grid when the gate is open or cleaning pollutants inside the receiving plate when the gate is closed, a filtering effect is always maintained on the water flowing through the gate. As the gate opens and closes, pollutants collected by the interception grid and the receiving plate can be cleaned separately without affecting the normal operation of the gate. While improving the interception effect of pollutants in the sluice area, it also reduces the time required to operate additional salvage machinery to carry out salvage operations on pollutants, thereby improving the efficiency of pollutant cleaning operations.

[0017] 2. This invention utilizes a separate receiving plate and intercepting baffle. During the plate's movement, the intercepting baffle remains submerged in the water. Therefore, even when the gate and receiving plate are not in place, the intercepting baffle can still intercept pollutants in the water flow, providing comprehensive filtration for the water flowing through the sluice gate, thus improving the filtration quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure from the second viewing angle of the present invention.

[0021] Figure 3 This is a schematic diagram of the side panel of the present invention after being disassembled.

[0022] Figure 4 This is a schematic diagram of the gate opening and the receiving plate descending state of the present invention.

[0023] Figure 5 This is a structural diagram of the present invention when the gate is opened and the accommodating plate is lowered after the side panels are removed.

[0024] Figure 6 Schematic diagram of the relative positions of the gate, accommodating plate and intercepting baffle of the present invention.

[0025] Figure 7 This is a schematic diagram of the relative positions of the gate, the accommodating plate, and the intercepting baffle when the gate is open.

[0026] Figure 8 Schematic diagram of the relative position of the gate and the accommodating plate when the gate is open.

[0027] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of point A in the middle.

[0028] Figure 10 This is a schematic diagram of the state when the intercepting baffle and the accommodating plate are docked with each other according to the present invention.

[0029] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point B in the middle.

[0030] Figure 12 This is a schematic diagram of the structure of the guide rail, mounting support, first limiting rail and second limiting rail of the carrier plate of the present invention.

[0031] In the figure: 1. Gate; 11. Limiting roller assembly; 12. Guide rail; 13. Mounting pillar; 14. Carrier plate; 15. First limiting rail; 16. Side plate; 17. Second limiting rail; 18. Top plate; 19. Electric screw; 2. Intercepting fence; 21. First follower arm; 22. First drive gear; 23. First drive rotor; 3. Accommodating plate; 31. Second follower arm; 32. Second drive gear; 33. Second drive rotor; 34. Synchronous belt; 35. Linkage arm; 36. Linkage gear; 37. Guide gear; 4. Intercepting baffle; 41. Guide rack; 42. Reduction gear. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1: Reference Figure 1 、 Figure 2The illustrated automatic cleaning device for a sluice gate comprises a gate 1 that can be raised and lowered, with an interception fence 2 fixedly mounted in front of the gate 1 and capable of synchronous movement in the same direction as the gate 1, and a receiving plate 3 positioned behind the gate 1 and capable of synchronous movement in the opposite direction. During the actual operation of the automatic cleaning device for a sluice gate, the interception fence 2 is positioned in front of the gate 1, intercepting pollutants in front of the gate 1 and concentrating them within the interception fence 2. When the sluice gate is opened and the gate 1 rises, the interception fence 2, carrying pollutants in front of the gate, rises synchronously, achieving the purpose of centrally transferring pollutants in front of the gate 1. These pollutants are then concentrated above the sluice gate, allowing staff to centrally clean the pollutants collected within the interception fence 2.

[0034] At the same time, as the gate 1 rises and opens, the receiving plate 3 moves down and lands at the bottom of the sluice gate. The present invention also includes a movable intercepting baffle 4, which is located behind the gate 1 and is in an upright position. When the gate 1 moves up and the receiving plate 3 moves down, the intercepting baffle 4 moves toward the receiving plate 3 and abuts against the rear end of the receiving plate 3, forming a filtering structure to intercept pollutants that pass through the gate 1 when the gate 1 is opened. Figure 4 、 Figure 5 As shown in the figure, under the action of gravity, the pollutants are retained above the receiving plate 3. In this process, without affecting the cleaning operation of the pollutants inside the interception grille 2 on the front side of the gate 1 after it is opened, the pollutants when the gate 1 is opened can be effectively filtered, preventing the pollutants from continuing to flow after passing through the gate 1.

[0035] Further, such as Figure 3 As shown, once the pollutants within interception fence 2 have been cleared and gate 1 needs to be closed, as gate 1 moves downward and receiving plate 3 moves upward, interception baffle 4 moves away from receiving plate 3. When gate 1 is closed, receiving plate 3 and the pollutants accumulated on its surface move above the sluice gate. During this process, as interception baffle 4 gradually moves away from receiving plate 3, there is room for staff to clean pollutants from the surface of receiving plate 3. Therefore, when gate 1 is closed and interception fence 2 is located in front of gate 1 to intercept pollutants, staff can focus on cleaning pollutants accumulated on the surface of receiving plate 3.

[0036] Therefore, in the present invention, the interception fence 2 and the receiving plate 3 can switch positions as the gate 1 operates, and adapt to the opening and closing motion trajectory of the gate 1. Whether the gate 1 is open to clean the pollutants collected inside the interception fence 2 or the gate 1 is closed to clean the pollutants inside the receiving plate 3, it always has a filtering effect on the water flowing through the gate 1. Moreover, in the present invention, as the gate 1 opens and closes, the pollutants collected by the interception fence 2 and the receiving plate 3 can be cleaned separately. In the process of cleaning the pollutants raised above the water surface, the normal use of the gate 1 is not affected. While improving the interception effect of pollutants in the sluice area, it also reduces the time required to operate additional salvage machinery to carry out salvage operations on pollutants, thereby improving the work efficiency of pollutant cleaning operations.

[0037] Specifically, such as Figure 3 As shown, the gate 1 is mounted on the back with a matching electric screw 19. The left and right ends of the interception fence 2 are fixed with first follower arms 21 that move synchronously with them. The rear sides of the two first follower arms 21 are connected to the first drive gear 22 through vertically distributed racks. When the electric screw 19 is running, it can drive the gate 1 to move up and down in the vertical direction, moving synchronously with the interception fence 2 fixed to it. When the interception fence 2 is raised or lowered, the first follower arms 21 move synchronously, and the first drive gear 22 rotates. Figure 6 、 Figure 7 shown.

[0038] like Figure 3 As shown, the left and right ends of the receiving plate 3 are fixed with second follower arms 31 that move synchronously therewith. The front sides of the two second follower arms 31 are connected to the second drive gear 32 through vertically distributed racks. The second drive gear 32 is located directly behind the first drive gear 22. Therefore, when the second drive gear 32 rotates, the second follower arms 31 and the receiving plate 3 move synchronously. Figure 6 、 Figure 7 shown.

[0039] like Figure 8 、 Figure 9As shown, the first drive gear 22 and the second drive gear 32 are respectively fixedly mounted with a first drive wheel 23 and a second drive wheel 33 coaxially disposed therewith. The first drive wheel 23 and the second drive wheel 33 are connected by a timing belt 34. When the gate 1, the interception gate 2, and the first follower arm 21 move upward or downward, the first drive gear 22, the first drive wheel 23, the second drive gear 32, and the second drive wheel 33 rotate synchronously in the same direction. Because the second follower arm 31 is meshedly connected to the rear side of the second drive gear 32, the second follower arm 31 and the receiving plate 3 move in the opposite direction of the gate 1. When the gate 1 is opened and the interception gate 2 and the first follower arm 21, loaded with pollutants, rise, the receiving plate 3 descends and combines with the interception baffle 4 to intercept the pollutants. When the gate 1 is closed and the cleaned interception gate 2 and the first follower arm 21 descend, the receiving plate 3, loaded with pollutants, rises to be cleaned.

[0040] Example 2: Based on Example 1, Figure 6 、 Figure 7 As shown, a linkage arm 35 is fixedly installed on the rear side of the second follower arm 31, and the rear sides of the two linkage arms 35 are meshed with a linkage gear 36 through a vertically distributed rack. The linkage gear 36 is fixedly installed with a guide gear 37 coaxially distributed therewith on the side close to the second follower arm 31. The rear of the guide gear 37 is meshed with a reduction gear 42, and the lower part of the reduction gear 42 is meshed with a guide rack 41. The two guide racks 41 are fixedly installed with the interception baffle 4, see Figure 10 、 Figure 11 As the second follower arm 31 and the linkage arm 35 move up and down, the linkage gear 36 and the guide gear 37 rotate synchronously, and the reduction gear 42 rotates in the opposite direction to the guide gear 37 until the guide rack 41 and the intercepting baffle 4 move synchronously.

[0041] Specifically, when the gate 1 is opened and the interception grille 2 and first follower arm 21, loaded with pollutants, rise, the receiving plate 3 descends, the guide rack 41 and interception baffle 4 move toward the receiving plate 3, and the interception baffle 4 engages with the receiving plate 3 to intercept the pollutants. When the gate 1 is closed and the interception grille 2 and first follower arm 21, after being cleaned, descend, the guide rack 41 and interception baffle 4 move away from the receiving plate 3, and the interception baffle 4 detaches from the receiving plate 3. The receiving plate 3, loaded with pollutants, rises to receive the cleaning operation.

[0042] In the present invention, the movement of the gate 1 and the receiving plate 3 is synchronized. Therefore, when the gate 1 and the intercepting fence 2 rise synchronously and the receiving plate 3 descends, the receiving plate 3 may not yet move into position when the water has already flowed through the gate 1. In addition, when the gate 1 and the intercepting fence 2 descend synchronously and the receiving plate 3 rises, the gate 1 has not yet moved into position but the receiving plate 3 has already risen out of its original position. At this time, the water flow below the gate 1 is still in a flowing state. In the above state, in order to avoid the phenomenon of incomplete interception of pollutants, the present invention adopts a method of separating the receiving plate 3 from the intercepting baffle 4. During the process of the receiving plate 3 rising and falling, the intercepting baffle 4 is always immersed under the water surface. Therefore, even if the gate 1 and the receiving plate 3 have not yet moved into position, the intercepting baffle 4 can still intercept pollutants in the water flow and perform a comprehensive filtering operation on the water flow flowing through the sluice, thereby improving the filtering quality of the water flow.

[0043] Moreover, as the accommodating plate 3 moves up and down, the intercepting baffle 4 can move away from or closer to the accommodating plate 3. During the movement of the intercepting baffle 4, the pollutants adhered to its surface fall down with the help of the impact force of the water flow, effectively avoiding the clogging of the intercepting baffle 4 and ensuring the filtration quality of the intercepting baffle 4.

[0044] Example 3: Based on Example 1 and Example 2, Figure 9 As shown, two sets of symmetrically distributed limiting roller groups 11 are fixedly installed at the lower rear side of the gate 1, and two vertically distributed guide rails 12 are provided at the rear side of the gate 1. The limiting roller groups 11 are slidably connected to the guide rails 12. The sides of the guide rails 12 are fixed with mounting pillars 13. The two mounting pillars 13 are respectively located on the left and right sides of the gate 1. When the gate 1 moves up and down along the distribution path of the mounting pillars 13, the limiting roller groups 11 slide inside the guide rails 12. Figure 1 、 Figure 4 The combination of the limiting roller assembly 11, the guide rail 12 and the mounting support 13 ensures the stability and accuracy of the gate 1 during its lifting and lowering movement.

[0045] Specifically, such as Figure 12 As shown, the tops of the two mounting pillars 13 are fixedly connected to a carrier plate 14, and each carrier plate 14 is provided with a vertically distributed first limiting rail 15 and a horizontally distributed second limiting rail 17. In order to maintain the stability of the first follower arm 21, the second follower arm 31 and the guide rack 41, the first follower arm 21 and the second follower arm 31 are both slidably connected to the first limiting rail 15, and the guide rack 41 is slidably connected to the second limiting rail 17, which further ensures the stability of the intercepting fence 2, the accommodating plate 3 and the intercepting baffle 4 during movement.

[0046] like Figure 12As shown, a side plate 16 is fixedly mounted on each of the first limiting rails 15 at the same end, and two sets of first drive gears 22 and first drive wheels 23 are rotatably mounted to the two side plates 16. To maintain synchronization during the movement of the two sets of second drive gears 32 and second drive wheels 33, the linkage gear 36 and guide gear 37, and the two reduction gears 42, the two sets of second drive gears 32 and second drive wheels 33, the linkage gear 36 and guide gear 37, and the two reduction gears 42 are all connected by a synchronization shaft, and both ends of the three synchronization shafts are rotatably mounted to the side plates 16.

[0047] Furthermore, the top ends of the two sets of first position-limiting rails 15 are fixed via a top plate 18 . To maintain the stability of the electric screw 19 , the electric screw 19 is installed on the top plate 18 .

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sluice gate opening and closing automatic cleaning device, comprising a sluice gate (1) that can be lifted and moved, characterized in that: An interception fence (2) is fixedly installed in front of the gate (1) and can be moved synchronously with the gate in the same direction, and a receiving plate (3) is provided behind the gate (1) and can be moved synchronously with the gate in the opposite direction. When the sluice gate is opened and the gate (1) moves upward, the interception fence (2) carries the pollutants on the front side of the gate and rises synchronously, and the receiving plate (3) moves downward and falls to the bottom end of the sluice gate. The invention also includes a movable intercepting baffle (4), which is arranged behind the gate (1) and is in an upright state; when the gate (1) moves upward and the receiving plate (3) moves downward, the intercepting baffle (4) moves toward the receiving plate (3) and contacts the rear end of the receiving plate (3), intercepting pollutants that pass through the gate (1) when the gate (1) is opened; when the gate (1) moves downward and the receiving plate (3) moves upward, the intercepting baffle (4) moves away from the receiving plate (3) until the receiving plate (3) and the pollutants accumulated on the surface thereof move to above the sluice gate.

2. The automatic cleaning device for opening and closing a water gate according to claim 1, characterized in that: The gate (1) is provided with an electric screw rod (19) adapted thereto on the back side thereof, and first follower arms (21) are fixed to the left and right ends of the intercepting fence (2) so as to move synchronously therewith, and the rear sides of the two first follower arms (21) are connected to first drive gears (22) through vertically distributed rack meshing. When the intercepting fence (2) is raised or lowered, the first follower arms (21) move synchronously and the first drive gear (22) rotates.

3. The automatic cleaning device for opening and closing a water gate according to claim 2, characterized in that: A second follower arm (31) is fixed to both the left and right ends of the accommodating plate (3), and moves synchronously therewith. The front sides of the two second follower arms (31) are connected to a second driving gear (32) through vertically distributed rack meshing. The second driving gear (32) is located directly behind the first driving gear (22). When the second driving gear (32) rotates, the second follower arm (31) and the accommodating plate (3) move synchronously.

4. The automatic cleaning device for opening and closing a water gate according to claim 3, characterized in that: A first driving wheel (23) and a second driving wheel (33) coaxially distributed therewith are fixedly mounted on the first driving gear (22) and the second driving gear (32), respectively. The first driving wheel (23) and the second driving wheel (33) are connected via a synchronous belt (34). When the gate (1), the intercepting fence (2) and the first follower arm (21) move upward or downward, the first driving gear (22), the first driving wheel (23), the second driving gear (32) and the second driving wheel (33) rotate synchronously in the same direction, and the second follower arm (31) and the accommodating plate (3) move in the opposite direction to the gate (1).

5. The automatic cleaning device for opening and closing a water gate according to claim 4, characterized in that: A linkage arm (35) is fixedly installed on the rear side of the second follower arm (31), and the rear sides of the two linkage arms (35) are meshed with a linkage gear (36) through a vertically distributed rack. A guide gear (37) coaxially distributed therewith is fixedly installed on the side of the linkage gear (36) close to the second follower arm (31). A reduction gear (42) is meshed with the rear of the guide gear (37), and a guide rack (41) is meshed with the lower side of the reduction gear (42). The two guide racks (41) are fixedly installed with the intercepting baffle (4). As the second follower arm (31) and the linkage arm (35) move up and down, the linkage gear (36) and the guide gear (37) rotate synchronously, and the reduction gear (42) rotates in the opposite direction to the guide gear (37) until the guide rack (41) and the intercepting baffle (4) move synchronously.

6. The automatic cleaning device for opening and closing a water gate according to claim 5, characterized in that: Two groups of symmetrically distributed limiting roller groups (11) are fixedly installed at the lower rear side of the gate (1), and two vertically distributed guide rails (12) are provided at the rear side of the gate (1). The limiting roller groups (11) are slidably connected to the guide rails (12), and mounting pillars (13) are fixed on the sides of the guide rails (12). The two mounting pillars (13) are respectively located on the left and right sides of the gate (1). When the gate (1) moves up and down along the distribution path of the mounting pillars (13), the limiting roller groups (11) slide inside the guide rails (12).

7. The automatic cleaning device for opening and closing a water gate according to claim 6, characterized in that: The top ends of the two mounting pillars (13) are fixedly connected to a carrier plate (14), and each carrier plate (14) is provided with a vertically distributed first limiting rail (15) and a horizontally distributed second limiting rail (17). The first follower arm (21) and the second follower arm (31) are both slidably connected to the first limiting rail (15), and the guide rack (41) is slidably connected to the second limiting rail (17).

8. The automatic cleaning device for opening and closing a water gate according to claim 7, characterized in that: The first limiting rails (15) at the same end are fixedly mounted with side plates (16), the two sets of the first driving gears (22) and the first driving wheels (23) are rotatably mounted on the two side plates (16), the two sets of the second driving gears (32) and the second driving wheels (33), the linkage gears (36) and the guide gears (37) as well as the two reduction gears (42) are all connected via synchronous rotating shafts, and both ends of the three synchronous rotating shafts are rotatably mounted on the side plates (16).

9. The automatic cleaning device for opening and closing a water gate according to claim 8, characterized in that: The top ends of the two groups of the first limiting rails (15) are fixed to each other via a top plate (18), and the electric screw rod (19) is mounted on the top plate (18).

Images