Automatic valve plate for water conveying channel

Abstract

The utility model relates to an automatic valve plate for a water delivery canal, which comprises a mounting rack (1), a valve plate (2), a power device (3), a gripping clip (4) and a water level monitoring device (5), an inner frame (11) is formed in the mounting rack, the valve plate is arranged in the inner frame in a sliding manner, and a roller (31) is rotatably arranged on the outer side of the mounting rack. The first roller (32) is mounted at the top of the inner frame, and the second roller (33) is mounted on the outer side of the mounting frame and located above the roller. One end of a lifting rope (34) is wound on the roller, and the other end penetrates through the first roller and the second roller to be fixedly connected with the upper end of the valve plate. The rocker (35) is arranged at one end of the roller, the gripper is arranged on the mounting frame and used for clamping and fixing the rocker, and the water level monitoring device is arranged on the mounting frame and used for enabling the gripper to release fixation of the rocker when the water level in the sodium salt pond reaches the set water level, so that the valve plate slides to the bottom of the inner frame under the action of gravity. According to the utility model, water with a set water level can be accurately injected into the sodium salt pond.

Description

Technical Field

[0001] This utility model relates to an automatic valve plate for water conveyance channels, and more particularly to the structure of an automatic valve plate for water conveyance channels. Background Technology

[0002] Salt lake brines are rich in minerals such as potassium, lithium, and sodium, and are the main raw materials for the production of potassium and lithium. The raw brine mined underground is also transported to sodium salt ponds via water conveyance channels to thaw and precipitate sodium chloride. When the brine reaches point E (the saturation point of potassium chloride, sodium chloride, and carnallite), it is then transported through water conveyance channels to carnallite ponds to thaw carnallite ore for potash fertilizer production. When the brine reaches point F (the saturation point of magnesium chloride, sodium chloride, and carnallite), it is transported through water conveyance channels to old brine ponds for storage and adsorption production of lithium carbonate. The tailings brine after adsorption is mixed with fresh water and returned to the mining area via water conveyance channels for further ore dissolution.

[0003] After prolonged use, sodium salt ponds accumulate a thick layer of salt deposits, which affects their capacity and necessitates cleaning. Current methods typically involve water dissolution to remove the deposits. However, considering dissolution efficiency, dam safety, and the risk of salt plate collapse at the bottom of the pond, a method of injecting small amounts of fresh water multiple times is adopted. This involves first injecting a certain amount of fresh water into the sodium salt pond to dissolve the deposits. Once the dissolution saturation point is reached, the dissolved water is drained, and then a certain amount of fresh water is injected again to continue dissolving the salt.

[0004] Current methods for filling sodium salt ponds typically involve using mixed-flow pumps to draw fresh water into a water conveyance channel, which then flows into the sodium salt pond through a chute installed on the dam. The water level in the sodium salt pond needs to be monitored and controlled by staff. Due to the large area and number of sodium salt ponds, and the fact that the mixed-flow pumps are located at the water source and there is a considerable distance between the pumps and the ponds, the operation is not only cumbersome but also makes it impossible to accurately control the water level in the ponds, increasing the risk of dam failure.

[0005] The purpose of this invention is to solve the problem of inaccurate control of the liquid level when injecting fresh water into a sodium salt pool during the dissolution and salt formation process. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides an automatic valve plate for water conveyance channels, comprising a mounting frame 1, a valve plate 2, a power unit 3, a gripper 4, and a water level monitoring device 5. The mounting frame 1 is a rectangular frame structure corresponding to the water conveyance channel, with an inner frame 11 forming inside to accommodate the valve plate 2. The valve plate 2 is installed in the inner frame 11 of the mounting frame 1 and can slide up and down along the inner frame. The power unit 3 includes a roller 31, a first roller 32, a second roller 33, a lifting rope 34, and a rocker arm 35. The roller 31 is rotatably mounted on the outside of the mounting frame 1 via a bracket 37. The first roller 32 is mounted at the top center of the inner frame 11 and is fixedly connected to the mounting frame 1. The second roller 33 is mounted on the outside of the mounting frame 1, located above the roller 31.

[0007] One end of the lifting rope 34 is wound around the drum 31, and the other end passes through the first roller 32 and the second roller 33 and is fixedly connected to the upper end of the valve plate 2. The rocker arm 35 is located at the end of the drum 31 away from the mounting frame 1. The gripper 4 is located on the mounting frame 1 and is used to hold and fix the rocker arm 35. The water level monitoring device 5 is located on the mounting frame 1 and is used to control the gripper 4 to release the rocker arm 35 when the water level in the sodium salt pool 6 reaches the set water level, so that the valve plate 2 slides to the bottom of the inner frame 11 under the action of gravity.

[0008] In use, the mounting frame 1 is installed at the end of the water conveyance channel 61 near the sodium salt pool 6. When water needs to be injected into the sodium salt pool 6, the rocker arm 35 is rotated, and the lifting rope 34 is wound around the roller 31, thereby pulling the valve plate 2 upward from the inner frame 11. The water level monitoring device 5 causes the gripper 4 to fix the rocker arm 35, thereby lifting and fixing the valve plate 2 to the upper part of the inner frame 11, forming a space for water to flow through below the valve plate 2. When the water level in the sodium salt pool 6 reaches the set value, the water level monitoring device 5 causes the gripper 4 to release the rocker arm 35, allowing the valve plate 2 to slide to the bottom of the inner frame 11 under the action of gravity, cutting off the water flow channel and stopping the injection of water into the sodium salt pool 6.

[0009] This invention utilizes a mounting frame 1 to slide a valve plate 2 within the inner frame 11 of the mounting frame 1. A rocker arm 35 rotates a roller 31, pulling the valve plate 2 upwards from the inner frame 11. A clamp 4 then secures the rocker arm 35, creating a space below the valve plate 2 for water flow. A water level monitoring device 5 is installed. When the water level in the sodium salt tank 6 reaches a set value, the device releases the rocker arm 35, allowing the valve plate 2 to slide to the bottom of the inner frame 11 under gravity, cutting off the water flow and stopping the injection of water into the sodium salt tank 6. This invention allows for precise injection of water to the sodium salt tank 6 at the appropriate level, solving the problem of inaccurate water level control in existing methods.

[0010] Preferably, the gripper 4 includes a clamping plate 41, a rotating shaft 42, and a spring 43. The clamping plate 41 is rectangular and includes a clamping part 411 and an operating part 412. A connecting block 413 protruding to one side is provided at the connection between the clamping part 411 and the operating part 412. A fixing plate 44 is provided on the side of the clamping part 411 near the connecting block 413. A baffle 45 is provided on the side of the operating part 412 near the connecting block 413. The fixing plate 44 has a C-shaped structure. The closed end of the fixing plate 44 is fixedly connected to the clamping part 411, and the open end of the fixing plate 44 faces away from the clamping part 411. The connecting block 413 is provided with a connecting hole corresponding to the rotating shaft 42. The rotating shaft 42 is horizontally set, and its end is fixedly connected to the mounting frame 1 through the connecting rod 46. There are two clamping plates 41. The connecting blocks 413 on the two clamping plates 41 are rotatably connected through the rotating shaft 42. The spring 43 is set between the two clamping plates 41, and its two ends are fixedly connected to the operating parts 412 of the two clamping plates 41 respectively.

[0011] When the gripper 4 is in use, the operating parts 412 of the two clamping plates 41 of the gripper 4 are opened by the water level detection device, so that the fixing plates 44 on the clamping parts 411 of the two clamping plates 41 are fastened together to clamp and fix the rocker arm 35, thereby opening and fixing the valve plate 2 in the inner frame 11 to release water. When the water level in the sodium salt tank 6 reaches the set value, the water level detection device disengages from the operating parts 412 of the two clamping plates 41 of the gripper 4. Under the action of the spring 43, the fixing plates 44 on the clamping parts 411 of the two clamping plates 41 open, losing the fixation of the rocker arm 35, and the valve plate 2 slides to the bottom of the inner frame 11 under the action of gravity.

[0012] Preferably, the water level monitoring device 5 includes a support rod 51 and a control rod 52. The support rod 51 is horizontally arranged and its end is fixedly connected to one side of the mounting frame 1. A sleeve 53 is fitted onto the support rod 51, and the sleeve 53 is rotatably connected to the support rod 51. The control rod 52 is perpendicular to the sleeve 53 and is fixedly connected to the sleeve 53 near the middle. One end of the control rod 52 is provided with a float 54, and the other end is provided with a support block 55 for connecting with the gripper 4.

[0013] When the water level monitoring device 5 is in use, the support block 55 at the end of the control rod 52 is inserted between the operating parts 412 of the two clamping plates 41 of the gripper 4, so that the fixing plates 44 on the clamping parts 411 of the two clamping plates 41 are fastened together to clamp and fix the rocker arm 35, so that the float 54 at the other end of the control rod 52 is located in the sodium salt pool 6. The height of the float 54 is equal to or slightly lower than the water level set height of the sodium salt pool 6. When the water level in the sodium salt pool 6 reaches the set value, buoyancy is generated on the float 54, and the control rod 52 rotates along the support rod 51, so that the support block 55 at the other end of the control rod 52 is disengaged from the operating parts 412 of the two clamping plates 41 of the gripper 4.

[0014] Preferably, the rocker arm 35 is L-shaped and includes a connecting part 351 and a hand-held part 352. A rolling shaft 311 is provided on the roller 31. The rolling shaft 311 is rotatably connected to the bracket 37. The end of the rolling shaft 311 away from the mounting bracket 1 extends through the bracket 37 to the outside of the bracket 37. One end of the connecting part 351 is fixedly connected to the end of the rolling shaft 311. The hand-held part 352 is fixedly connected to the other end of the connecting part 351. The connecting part 351 is perpendicular to the rolling shaft 311, and the hand-held part 352 is parallel to the rolling shaft 311.

[0015] Preferably, it also includes a sliding sleeve 36, the handheld part 352 is a round rod, and an annular limiting ring 353 is provided on the side of the handheld part 352. The sliding sleeve 36 is a cylindrical structure, the inner diameter of the sliding sleeve 36 is the same as the diameter of the handheld part 352, and a limiting groove 361 corresponding to the limiting ring 353 is provided on the inner wall of the sliding sleeve 36. The sliding sleeve 36 is rotatably mounted on the handheld part 352, and the limiting ring 353 is slidably disposed in the limiting groove 361.

[0016] By providing a sliding sleeve 36 on the handheld part 352 and rotatably connecting the sliding sleeve 36 to the handheld part 352, the rocker arm 35 can be easily rotated, preventing the worker's hand from being injured by friction when directly holding the handheld part 352 to rotate the rocker arm 35.

[0017] Preferably, the inner sidewall of the mounting bracket 1 is provided with a vertically extending groove 12 corresponding to the valve plate 2, and the side of the valve plate 2 is slidably disposed in the groove 12.

[0018] By providing a groove 12 on the inner side wall of the mounting bracket 1, the side of the valve plate 2 can be slidably disposed in the groove 12, which can keep the valve plate 2 stable and prevent water leakage from the gap between the valve plate 2 and the mounting bracket 1.

[0019] Preferably, a retaining ring 38 is provided at the end of the handheld part 352, and the gripper 4 fixes the rocker arm 35 by clamping the retaining ring 38.

[0020] Preferably, the bottom of the mounting frame 1 is provided with multiple mounting rods 13. The mounting rods 13 can be used to fix the mounting frame 1 inside the water conveyance channel 61, so that the mounting frame 1 remains stable. Attached Figure Description

[0021] Figure 1 Schematic diagram of the overall structure of the automatic valve plate for the water conveyance canal;

[0022] Figure 2 Schematic diagram of the side structure of the automatic valve plate for the water conveyance canal;

[0023] Figure 3 Schematic diagram of the cross-sectional structure of the automatic valve plate used in the water conveyance canal;

[0024] Figure 4 . Figure 1 Enlarged view of point A in the middle;

[0025] Figure 5 . Figure 2 Enlarged view of point B in the middle;

[0026] Figure 6 Schematic diagram of the overall structure of the gripper;

[0027] Figure 7 Schematic diagram of the rocker arm's cross-sectional structure;

[0028] Figure 8 Diagram showing the valve in operation when open;

[0029] Figure 9 A schematic diagram showing the valve in operation when closed.

[0030] In the diagram, 1. Mounting bracket, 11. Inner frame, 12. Slide groove, 13. Mounting rod, 14. Through hole, 2. Valve plate, 3. Power unit, 31. Roller, 311. Rolling shaft, 32. First roller, 33. Second roller, 34. Lifting rope, 35. Rocker arm, 351. Connecting part, 352. Handheld part, 353. Limiting ring, 36. Sliding sleeve, 361. Limiting groove, 37. Bracket, 38. Fixing ring, 4. Grip clamp, 41. Clamping plate, 411. Clamping part, 412. Operating part, 413. Connecting block, 42. Rotating shaft, 43. Spring, 44. Fixing plate, 45. Baffle, 46. Connecting rod, 5. Water level monitoring device, 51. Support rod, 52. Control rod, 53. Sleeve, 54. Float ball, 55. Support block, 6. Sodium salt pool, 61. Water conveyance channel. Detailed Implementation

[0031] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the automatic valve plate for the water conveyance channel includes a mounting frame 1, a valve plate 2, a power unit 3, a gripper 4, and a water level monitoring device 5. The mounting frame 1 is a rectangular frame structure with a corresponding water conveyance channel 61, which is vertically arranged and forms an inner frame 11 to accommodate the valve plate 2. The inner side wall of the mounting frame 1 is provided with a vertically extending groove 12 corresponding to the valve plate 2.

[0033] The valve plate 2 is installed in the inner frame 11 of the mounting bracket 1 and can slide up and down along the inner frame. The side of the valve plate 2 is slidably disposed in the slide groove 12. By providing the slide groove 12 on the inner side wall of the mounting bracket 1, the side of the valve plate 2 can be slidably disposed in the slide groove 12, which can keep the valve plate 2 stable and prevent water leakage from the gap between the valve plate 2 and the mounting bracket 1.

[0034] Multiple mounting rods 13 are provided on the bottom surface and the bottom of both sides of the mounting frame 1. The mounting rods 13 are used to insert into the soil of the dam of the water conveyance channel 61 to fix the mounting frame 1 in the water conveyance channel 61 and keep the mounting frame 1 stable.

[0035] like Figure 1 and Figure 4 As shown, the power unit 3 includes a drum 31, a first roller 32, a second roller 33, a lifting rope 34, and a rocker arm 35.

[0036] The roller 31 is rotatably mounted on the outside of the mounting frame 1 via the bracket 37. A rolling shaft 311 is provided on the roller 31. The rolling shaft 311 is rotatably connected to the bracket 37. The end of the rolling shaft 311 away from the mounting frame 1 extends through the bracket 37 to the outside of the bracket 37.

[0037] The first roller 32 is installed at the center of the top of the inner frame 11 and is fixedly connected to the mounting bracket 1. The second roller 33 is installed on the upper part of the outer side of the mounting bracket 1, above the roller 31, and the second roller 33 is flush with the first roller 32.

[0038] The mounting bracket 1 has through holes 14 at the positions corresponding to the second roller 33 and the first roller 32 to accommodate the lifting rope 34.

[0039] One end of the lifting rope 34 is wound around the drum 31, and the other end passes through the second roller 33, the through hole 14 and the first roller 32 and is fixedly connected to the upper end of the valve plate 2.

[0040] The rocker arm 35 is located at the end of the roller 31 away from the mounting frame 1, and the gripper 4 is located on the mounting frame 1 to hold and fix the rocker arm 35.

[0041] The water level monitoring device 5 is located outside the mounting frame 1, below the roller 31, and includes a support rod 51 and a control rod 52. The support rod 51 is horizontally arranged and its end is fixedly connected to one side of the mounting frame 1. A sleeve 53 is sleeved on the support rod 51 and the sleeve 53 is rotatably connected to the support rod 51.

[0042] The control lever 52 is perpendicular to the sleeve 53 and is fixedly connected to the sleeve 53 near the middle. One end of the control lever 52 is provided with a float 54, and the other end is provided with a support block 55 for connecting with the gripper 4 (see reference). Figure 5 ).

[0043] The water level monitoring device 5 is used to release the gripper 4 from the rocker arm 35 when the water level in the sodium salt pool 6 reaches the set water level, so that the valve plate 2 slides to the bottom of the inner frame 11 under the action of gravity.

[0044] like Figure 4 and Figure 6As shown, the gripper 4 includes a clamping plate 41, a rotating shaft 42, and a spring 43. The clamping plate 41 is rectangular and includes a clamping part 411 and an operating part 412. A connecting block 413 protruding to one side is provided at the connection between the clamping part 411 and the operating part 412. A fixing plate 44 is provided on the side of the clamping part 411 near the connecting block 413. A baffle 45 is provided on the side of the end of the operating part 412 near the connecting block 413.

[0045] The fixing plate 44 has a C-shaped structure. The closed end of the fixing plate 44 is fixedly connected to the clamping part 411, and the open end of the fixing plate 44 faces away from the clamping part 411. The connecting block 413 is provided with a connecting hole corresponding to the rotating shaft 42.

[0046] The rotating shaft 42 is horizontally set, and its end is fixedly connected to the mounting frame 1 through the connecting rod 46. There are two clamping plates 41. The connecting blocks 413 on the two clamping plates 41 are rotatably connected through the rotating shaft 42. The spring 43 is set between the two clamping plates 41, and its two ends are fixedly connected to the operating parts 412 of the two clamping plates 41 respectively.

[0047] During the operation of the water level monitoring device 5 and the gripper 4, when the valve is opened to release water into the sodium salt tank 6, the support block 55 at the end of the control rod 52 is inserted between the operating parts 412 of the two clamping plates 41 of the gripper 4, thus opening the operating parts 412 of the two clamping plates 41 of the gripper 4. This causes the fixing plates 44 on the clamping parts 411 of the two clamping plates 41 to snap together, clamping and fixing the rocker arm 35. This, in turn, fixes the valve plate 2 after it slides open in the inner frame 11, allowing the gate to be opened and water to be released. At this time, the float 54 at the other end of the control rod 52 is located inside the sodium salt tank 6, and the height of the float 54 is equal to or slightly lower than the water level setting height of the sodium salt tank 6.

[0048] When the water level in the sodium salt tank 6 reaches the set value, it generates buoyancy on the float 54. The control rod 52 rotates along the support rod 51, causing the support block 55 located at the other end of the control rod 52 to disengage from the operating part 412 of the two clamping plates 41 of the gripper 4. Under the action of the spring 43, the fixing plate 44 on the clamping part 411 of the two clamping plates 41 opens, losing its fixation on the rocker arm 35. This causes the valve plate 2 to slide to the bottom of the inner frame 11 under the action of gravity, stopping the release of water into the sodium salt tank 6.

[0049] like Figure 4 and Figure 7 As shown, the joystick 35 is L-shaped and includes a connecting part 351 and a handheld part 352. One end of the connecting part 351 is fixedly connected to the end of the rolling shaft 311, and the handheld part 352 is fixedly connected to the other end of the connecting part 351. The connecting part 351 is perpendicular to the rolling shaft 311, and the handheld part 352 is parallel to the rolling shaft 311.

[0050] A retaining ring 38 is provided at the end of the hand-held part 352, and the gripper 4 fixes the rocker arm 35 by clamping the retaining ring 38.

[0051] The joystick 35 is provided with a sliding sleeve 36, the handheld part 352 is a round rod, and a circular limiting ring 353 is provided on the side of the handheld part 352. The sliding sleeve 36 is a cylindrical structure, and the inner diameter of the sliding sleeve 36 is the same as the diameter of the handheld part 352. The inner wall of the sliding sleeve 36 is provided with a limiting groove 361 corresponding to the limiting ring 353. The sliding sleeve 36 is rotatably mounted on the handheld part 352, and the limiting ring 353 is slidably disposed in the limiting groove 361.

[0052] By providing a sliding sleeve 36 on the handheld part 352 and rotatably connecting the sliding sleeve 36 to the handheld part 352, the rocker arm 35 can be easily rotated, preventing the worker's hand from being injured by friction due to directly holding the handheld part 352 to rotate the rocker arm 35.

[0053] like Figure 8 As shown, in use, the mounting frame 1 is installed at the end of the water conveyance channel 61 near the sodium salt tank 6. When water needs to be injected into the sodium salt tank 6, the rocker arm 35 is rotated, and the lifting rope 34 is wound around the roller 31, thereby pulling the valve plate 2 upward from the inner frame 11. The support block 55 at the end of the control rod 52 is inserted between the operating parts 412 of the two clamping plates 41 of the gripper 4, and the rocker arm 35 is clamped and fixed by the gripper 4 to open the gate and release water. At this time, the float 54 at the other end of the control rod 52 is located in the sodium salt tank 6, and the height of the float 54 is equal to or slightly lower than the water level setting height of the sodium salt tank 6.

[0054] like Figure 9 As shown, when the water level in the sodium salt tank 6 reaches the set value, buoyancy is generated on the float 54, and the control rod 52 rotates along the support rod 51, causing the support block 55 located at the other end of the control rod 52 to disengage from the operating part 412 of the two clamping plates 41 of the gripper 4, so that the gripper 4 loses its fixation on the rocker arm 35, and the valve plate 2 slides to the bottom of the inner frame 11 under the action of gravity, stopping the release of water into the sodium salt tank 6.

[0055] This invention utilizes a mounting frame 1 to slide the valve plate 2 within the inner frame 11. A rocker arm 35 rotates the roller 31, pulling the valve plate 2 upwards from the inner frame 11. The rocker arm 35 is then fixed in place by a clamp 4, creating a space below the valve plate 2 for water flow. A water level monitoring device 5 is installed. When the water level in the sodium salt tank 6 reaches a set value, the device releases the rocker arm 35, allowing the valve plate 2 to slide to the bottom of the inner frame 11 under gravity, cutting off the water flow and stopping the injection of water into the sodium salt tank 6. This ensures precise injection of water to the appropriate level into the sodium salt tank 6.

[0056] It should be noted that the above embodiments are illustrative of the present invention and not restrictive of the present invention, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims.

Claims

1. An automatic valve plate for water conveyance channels, characterized in that, It includes a mounting frame (1), a valve plate (2), a power unit (3), a gripper (4), and a water level monitoring device (5). The mounting frame (1) is a rectangular frame structure with a corresponding water conveyance channel, and an inner frame (11) is formed inside to accommodate the valve plate (2). The valve plate (2) is installed in the inner frame (11) of the mounting bracket (1) and can slide up and down along the inner frame; The power unit (3) includes a drum (31), a first roller (32), a second roller (33), a lifting rope (34), and a rocker arm (35). The roller (31) is rotatably mounted on the outside of the mounting frame (1) via a bracket (37); The first roller (32) is mounted at the top center of the inner frame (11); The second roller (33) is mounted on the outside of the mounting bracket (1) and is located above the roller (31); One end of the lifting rope (34) is wound around the drum (31), and the other end passes through the first roller (32) and the second roller (33) and is fixedly connected to the upper end of the valve plate (2); The rocker arm (35) is located at the end of the roller (31) away from the mounting bracket (1); The gripper (4) is mounted on the mounting frame (1) and is used to hold and fix the rocker arm (35). The water level monitoring device (5) is mounted on the mounting frame (1) and is used to control the gripper (4) to release the rocker arm (35) when the water level in the sodium salt pool reaches the set water level, so that the valve plate (2) slides to the bottom of the inner frame (11) under the action of gravity.

2. The automatic valve plate for water conveyance channels according to claim 1, characterized in that, The gripper (4) includes a clamping plate (41), a rotating shaft (42), and a spring (43). The clamping plate (41) is rectangular and includes a clamping part (411) and an operating part (412). A connecting block (413) protruding to one side is provided at the connection between the clamping part (411) and the operating part (412). A fixing plate (44) is provided on the side of the clamping part (411) near the connecting block (413). A baffle (45) is provided on the side of the end of the operating part (412) near the connecting block (413). The fixing plate (44) has a C-shaped structure. The closed end of the fixing plate (44) is fixedly connected to the clamping part (411), and the open end of the fixing plate (44) faces away from the clamping part (411). The connecting block (413) is provided with a connecting hole corresponding to the rotating shaft (42); The rotating shaft (42) is horizontally arranged, and its end is fixedly connected to the mounting bracket (1) by a connecting rod (46); Two clamping plates (41) are provided, and the connecting blocks (413) on the two clamping plates (41) are rotatably connected by a rotating shaft (42); The spring (43) is disposed between the two clamping plates (41), and its two ends are fixedly connected to the operating parts (412) of the two clamping plates (41) respectively.

3. The automatic valve plate for water conveyance channels according to claim 2, characterized in that, The water level monitoring device (5) includes a support rod (51) and a control rod (52). The support rod (51) is horizontally arranged, and its end is fixedly connected to one side of the mounting frame (1). A sleeve (53) is sleeved on the support rod (51). The sleeve (53) is rotatably connected to the support rod (51); The control rod (52) is perpendicular to the sleeve (53) and is fixedly connected to the sleeve (53) near the middle. One end of the control rod (52) is provided with a float (54) and the other end is provided with a support block (55) for connecting with the gripper (4).

4. The automatic valve plate for water conveyance channels according to claim 3, characterized in that, The joystick (35) is L-shaped and includes a connecting part (351) and a hand-held part (352). The roller (31) is provided with a rolling shaft (311), which is rotatably connected to the bracket (37). The end of the rolling shaft (311) away from the mounting bracket (1) extends through the bracket (37) to the outside of the bracket (37). One end of the connecting part (351) is fixedly connected to the end of the rolling shaft (311); The handheld part (352) is fixedly connected to the other end of the connecting part (351); The connecting part (351) is perpendicular to the rolling shaft (311), and the handheld part (352) is parallel to the rolling shaft (311).

5. The automatic valve plate for water conveyance channels according to claim 4, characterized in that, It also includes a sliding sleeve (36). The hand-held part (352) is a round rod, and a circular limiting ring (353) is provided on the side of the hand-held part (352). The sliding sleeve (36) is a cylindrical structure. The inner diameter of the sliding sleeve (36) is the same as the diameter of the hand-held part (352). The inner wall of the sliding sleeve (36) is provided with a limiting groove (361) corresponding to the limiting ring (353). The sliding sleeve (36) is rotatably mounted on the hand-held part (352), and the limiting ring (353) is slidably disposed in the limiting groove (361).

6. The automatic valve plate for water conveyance channels according to claim 5, characterized in that, The inner wall of the mounting bracket (1) is provided with a vertically extending groove (12) corresponding to the valve plate (2). The side of the valve plate (2) is slidably disposed in the slide groove (12).

7. The automatic valve plate for water conveyance channels according to claim 6, characterized in that, A retaining ring (38) is provided at the end of the handheld part (352). The gripper (4) fixes the rocker arm (35) by clamping the fixing ring (38).

8. The automatic valve plate for an irrigation canal according to any one of claims 1 to 7, characterized in that, The mounting bracket (1) has multiple mounting rods (13) at its bottom.

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