An irrigation district water demand forecasting device and method

Abstract

The application discloses an irrigation area water demand prediction device and method, relates to the technical field of irrigation area water demand prediction, and comprises a measuring column, a measuring mechanism is installed at the upper end of the measuring column, a marking mechanism is installed on one side of the measuring mechanism, a bottom frame is clamped at the lower end of the measuring column, support frames are fixedly connected to the front and rear parts and the two sides of the bottom frame, and stabilizing mechanisms are installed on the front and rear parts and the two sides of the bottom frame. The first gear plate in the measuring mechanism is used to drive the first adjusting pipe and the first adjusting rod to move, so that the measuring frame can be lowered and float on the water surface, the measuring frame is fixed through the anti-skid block, the water level height can be conveniently measured, the marking block moves together with the measuring frame in the measuring mechanism, the position of the measuring frame can be marked on the measuring column through the marking block, the water level height can be conveniently read and recorded, and errors are reduced.

Description

Technical Field

[0001] This invention relates to the field of irrigation area water demand prediction technology, specifically to an irrigation area water demand prediction device and prediction method. Background Technology

[0002] Irrigation water consumption refers to the amount of water that needs to be drawn from irrigation sources to irrigate land. When planning, designing, and managing irrigation projects, the irrigation water consumption of the project area must first be calculated, and then a supply-demand balance calculation must be performed based on the water supply of the project area. When the water supply cannot meet the water demand (generally occurring in arid regions of central and western China), measures to be taken should be proposed.

[0003] Currently, before irrigating rice, it is necessary to predict the water demand of the irrigation area. This prediction requires considering multiple factors such as the amount of water needed for artificial irrigation, regional conditions, rainfall, and soil conditions. After scaling the irrigation area proportionally and irrigating, measuring tools can be used to measure the water level to calculate the actual water demand. However, existing measuring tools cannot display the measured height in real time, requiring manual recording. Furthermore, visual observation from above introduces errors due to water refraction, necessitating manual horizontal observation, which increases the labor of observers and hinders the measurement of water levels at multiple points within the irrigation area. Therefore, a water demand detection device for irrigation areas is needed to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a device for predicting water demand in irrigation areas, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a water demand prediction device for irrigation areas, comprising a measuring column, a measuring mechanism installed at the upper end of the measuring column, a marking mechanism installed on one side of the measuring mechanism, a bottom frame snapped onto the lower end of the measuring column, a support frame fixedly connected to the front, rear and sides of the bottom frame, and a stabilizing mechanism installed on the front, rear and sides of the bottom frame. By using the measuring mechanism and the marking mechanism to mark the measuring frame floating on the water surface, it is convenient for staff to record and observe the water level, which is beneficial for calculating the water level and facilitating the subsequent calculation of water demand.

[0006] The measuring mechanism includes a gear, with the lower middle part of the gear rotatably connected to the measuring column. The front part of the gear meshes with a first gear plate. The rear part of the first gear plate, away from the gear, is fixedly connected to a first adjusting tube. The lower end of the first adjusting tube is slidably connected to a first adjusting rod. The lower end of the first adjusting rod is fixedly connected to a connecting block. A measuring frame is installed on the connecting block near the measuring column. A float plate is fixedly connected to the lower end of the measuring frame. By using the gear to drive the first gear plate to move, the lower measuring frame can move the anti-slip block away from the anti-slip groove, making it easier for the measuring frame to descend under the influence of gravity, which is conducive to the measuring frame floating on the water surface and facilitating marking by a marking mechanism.

[0007] In a further embodiment, a first spring is fixedly connected to one side of the measuring frame near the connecting block, and an anti-slip block is fixedly connected to the side of the first spring away from the connecting block. A connecting rod is fixedly connected to the middle of the side of the anti-slip block near the connecting block, and the connecting rod is fixedly connected to the connecting block on the side away from the anti-slip block. A rotating rod is fixedly connected to the upper end of the gear, and a throttle is fixedly connected to the upper end of the rotating rod. An anti-slip groove is provided on one side of the measuring column, and the anti-slip block is located in the anti-slip groove. This allows the first spring to drive the anti-slip block to return to its original position, so that the anti-slip block can once again fit against the inner wall of the anti-slip groove. This facilitates the fixation of the measuring frame after it has descended and makes the measuring frame easier to use.

[0008] In a further embodiment, a protective frame is fixedly connected to the upper end of the measuring column, and the gear and the first gear plate are both located inside the protective frame. The first gear plate and the protective frame are slidably connected, which serves to protect the gear and the first gear plate.

[0009] In a further embodiment, the marking mechanism includes a second gear plate, which meshes with a gear. An extension rod is fixedly connected to the front part of the second gear plate away from the gear. A second adjusting tube is fixedly connected to the side of the extension rod away from the second gear plate. A second adjusting rod is slidably connected to the lower end of the second adjusting tube. An L-shaped rod is fixedly connected to the front part of the lower end of the second adjusting rod. A marking block is fixedly connected to the side of the L-shaped rod away from the second adjusting rod. The marking block is close to the measuring column. A telescopic rod is fixedly connected to the side of the second adjusting rod close to the measuring column. A fixed rod is fixedly connected to the side of the telescopic rod passing through the measuring column. The fixed rod is fixedly connected to the first adjusting rod. Both the first and second adjusting tubes have grooves adapted to the telescopic rod. Through the telescopic rod and fixed rod structure of the marking mechanism, the second adjusting rod can move with the movement of the first adjusting rod, thereby causing the marking block to descend with the measuring frame. This facilitates the marking block marking the position and height of the measuring frame, which is beneficial for recording the water level and for calculating the subsequent water demand.

[0010] In a further embodiment, a limiting groove is provided in the middle of the measuring column. The limiting groove is adapted to the telescopic rod and serves to protect the telescopic rod.

[0011] In a further embodiment, the stabilizing mechanism includes a first bevel gear located within the base frame and rotatably connected to it. Second bevel gears mesh around the first bevel gear on all four sides. A threaded rod is fixedly connected to the side of the second bevel gear away from the first bevel gear. A threaded tube is threadedly connected to the side of the threaded rod away from the second bevel gear on the same side. A support block is fixedly connected to the side of the threaded tube away from the threaded rod. The support block and the threaded tube are located within a support frame. A set plate drives the spiral rod to move, enabling the first bevel gear to drive the second bevel gear to rotate. This causes the threaded tube to drive the support block to move, allowing the support block and the support frame to jointly support the measuring column, facilitating the stable use of the measuring column.

[0012] In a further embodiment, a helical rod is threadedly connected to the middle of the first bevel gear, and a button plate is fixedly connected to the lower end of the helical rod. A helical groove adapted to the helical rod is opened in the middle of the first bevel gear, and a first elastic element is fixedly connected to the upper end of the helical rod. The upper end of the first elastic element is fixedly connected to the inner wall of the bottom frame. The structure of the first elastic element can facilitate the restoration of the helical rod, thereby facilitating the restoration of the button plate by the helical rod and making it convenient for the stabilizing mechanism to be reused.

[0013] In a further embodiment, a plug is fixedly connected to the upper end of the bottom frame, and a snap-fit ​​mechanism is installed inside the plug. The snap-fit ​​mechanism includes a second elastic member, which is fixedly connected to the plug. A limiting plate is fixedly connected to the side of the second elastic member away from the plug, and a snap-fit ​​block is fixedly connected to the side of the limiting plate away from the second elastic member. The snap-fit ​​mechanism facilitates the quick fixing of the plug onto the measuring column, making it convenient for the installation and use of the bottom frame.

[0014] In a further embodiment, ejection mechanisms are installed on both sides of the lower end of the measuring column. The ejection mechanism includes a fixing ring, which is fixedly installed in a slot opened at the lower end of the measuring column. A tension spring is fixedly connected to one side of the fixing ring, and a connecting ring is fixedly connected to the side of the tension spring away from the fixing ring. A top block is fixedly connected to the middle of the connecting ring. The ejection mechanism facilitates the separation of the locking block from the slot, which is convenient for the separation of the bottom frame from the measuring column and facilitates the maintenance of the bottom frame and the stabilizing mechanism.

[0015] Preferably, the prediction method based on the above-mentioned irrigation area water demand prediction device includes the following steps:

[0016] A1. When using, place the measuring column into the area that has been divided proportionally and watered as needed, and use the stabilizing mechanism to make the measuring column stand vertically in the area;

[0017] A2. Then turn the handle to make the rotating rod drive the gear to rotate, and make the first gear plate drive the first adjusting tube and the first adjusting rod away from the measuring column, thereby pulling the measuring frame away from the measuring column, so that the measuring frame can be lowered by gravity.

[0018] A3. After the float plate at the lower end of the measuring frame comes into contact with the water surface, it is affected by buoyancy, causing the measuring frame to float on the water surface, thus enabling the observation of the water level. The measured height is marked by the driven marking mechanism. Then, the measuring column can be moved to measure the water level in other areas and compare the results.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention relates to a water demand prediction device for irrigation areas. The device uses a first gear plate in the measuring mechanism to move a first adjusting pipe and a first adjusting rod, causing the measuring frame to descend and float on the water surface. An anti-slip block is used to fix the measuring frame, facilitating water level measurement. A marker block moves with the measuring frame in the measuring mechanism, marking the position of the measuring frame on the measuring column for easy reading and recording of water level, reducing errors and labor costs. A stabilizing mechanism ensures the measuring column remains stable on the ground during use, preventing tilting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a front view schematic diagram of the main structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection mechanism between the measuring mechanism and the marking mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 2 Enlarged view of the A structure;

[0025] Figure 5 For the present invention Figure 2 Enlarged view of the B structure;

[0026] Figure 6 This is a schematic diagram of the stabilizing mechanism of the present invention;

[0027] Figure 7 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention.

[0028] In the diagram: 1. Measuring column; 2. Insertion block; 3. Measuring mechanism; 31. Gear; 32. First gear plate; 33. First adjusting tube; 34. First adjusting rod; 35. Connecting block; 351. Connecting rod; 352. First spring; 353. Anti-slip block; 36. Measuring frame; 37. Float plate; 38. Rotating rod; 39. Turning handle; 4. Marking mechanism; 41. Second gear plate; 42. Extension rod; 43. Second adjusting tube; 44. Second adjusting rod; 45. L-shaped rod; 46. Marking block; 47. Telescopic mechanism 48. Rod; 5. Fixing rod; 5. Stabilizing mechanism; 51. First bevel gear; 52. Helical rod; 53. Press plate; 54. Second bevel gear; 55. Threaded rod; 56. Threaded tube; 57. Support block; 58. First elastic element; 6. Snap-fit ​​mechanism; 61. Second elastic element; 62. Limiting plate; 63. Locking block; 7. Ejection mechanism; 71. Fixing ring; 72. Tension spring; 73. Connecting ring; 74. Top block; 8. Protective frame; 9. Limiting groove; 10. Bottom frame; 11. Support frame; 12. Anti-slip groove. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment provides a water demand prediction device for irrigation areas, including a measuring column 1, a measuring mechanism 3 installed at the upper end of the measuring column 1, a marking mechanism 4 installed on one side of the measuring mechanism 3, a bottom frame 10 snapped onto the lower end of the measuring column 1, a support frame 11 fixedly connected to the front, back and sides of the bottom frame 10, and a stabilizing mechanism 5 installed at the front, back and sides of the bottom frame 10. By using the measuring frame 36 in the measuring mechanism 3, the measuring frame 36 can float on the water surface, which makes it convenient for staff to observe and measure the water level, thus facilitating the prediction of water demand.

[0032] Existing measuring tools cannot display the measured height in real time, requiring manual recording. Furthermore, when observing from above, water refraction introduces errors, necessitating manual observation by bending over horizontally. This increases the labor of observers and is not conducive to measuring water levels at multiple points in the irrigation area. The measuring mechanism 3 includes a gear 31, with its lower middle section rotatably connected to the measuring column 1. The front of the gear 31 meshes with a first gear plate 32. The rear of the first gear plate 32, away from the gear 31, is fixedly connected to a first adjusting pipe 33. The lower end of the first adjusting pipe 33 is slidably connected to a first adjusting rod 34. The lower end of the first adjusting rod 34 is fixedly connected to a connecting block 35. A measuring frame 36 is installed on the side of the connecting block 35 near the measuring column 1, and a float plate 37 is fixedly connected to the lower end of the measuring frame 36.

[0033] Rotate the handle 39 to make the handle 39 drive the rotating rod 38 to rotate, the rotating rod 38 drives the gear 31 to rotate, the gear 31 drives the first gear plate 32 to rotate, the first gear plate 32 drives the first adjusting tube 33 and the first adjusting rod 34 to move away from the gear 31, and drives the lower connecting block 35 to move. The connecting block 35 will drive the connecting rod 351 to move, and drive the anti-slip block 353 to move, so that the anti-slip block 353 separates from the inner wall of the anti-slip groove 12 and causes the first spring 352 to contract. At this time, the measuring frame 36 and the float plate 37 are no longer subjected to the lateral force of the anti-slip block 353 and the anti-slip groove 12.

[0034] This causes the float to descend under the influence of gravity, bringing the float 37 into contact with the water surface. Due to the buoyancy, the float 37 and the measuring frame 36 float on the water surface.

[0035] To fix the measuring frame 36 floating on the water surface and prevent it from sliding and causing inaccurate observations, a first spring 352 is fixedly connected to one side of the measuring frame 36 near the connecting block 35. An anti-slip block 353 is fixedly connected to the side of the first spring 352 away from the connecting block 35. A connecting rod 351 is fixedly connected to the middle of the side of the anti-slip block 353 near the connecting block 35. The side of the connecting rod 351 away from the anti-slip block 353 is fixedly connected to the connecting block 35. A rotating rod 38 is fixedly connected to the upper end of the gear 31. A throttle 39 is fixedly connected to the upper end of the rotating rod 38. An anti-slip groove 12 is provided on one side of the measuring column 1, and the anti-slip block 353 is located in the anti-slip groove 12.

[0036] The throttle 39 can be loosened to allow the first spring 352 to return to its original state, which in turn causes the anti-slip slider 353 to return to its original state, allowing the anti-slip slider 353 to re-engage with the inner wall of the anti-slip groove 12, thereby fixing the measuring frame 36 and facilitating the measurement of water level height.

[0037] By using the movement of the first gear plate 32 driven by the gear 31, the lower measuring frame 36 can move the anti-slip block 353 away from the anti-slip groove 12, allowing the measuring frame 36 to descend and float on the water surface, facilitating the measurement use of the measuring frame 36. Furthermore, through the action of the first spring 352, the anti-slip block 353 can be restored and come into contact with the anti-slip groove 12, thus fixing the measuring frame 36, preventing the measuring frame 36 from sliding, and facilitating the measurement use of the measuring frame 36.

[0038] Example 2

[0039] Please see Figure 1 , Figure 2 and Figure 3 Further improvements were made based on Example 1:

[0040] In the existing technology, when measuring the water level in an area, in order to ensure the accuracy of the record, the staff needs to bend over so that their eyes are as close to the water level as possible before recording. This recording method is very cumbersome. The marking mechanism 4 includes a second gear plate 41, which meshes with a gear 31. An extension rod 42 is fixedly connected to the front part of the second gear plate 41 away from the gear 31. A second adjusting tube 43 is fixedly connected to the side of the extension rod 42 away from the second gear plate 41. A second adjusting rod 44 is slidably connected to the lower end of the second adjusting tube 43. An L-shaped rod 45 is fixedly connected to the front part of the lower end of the second adjusting rod 44. A marking block 46 is fixedly connected to the side of the L-shaped rod 45 away from the second adjusting rod 44. The marking block 46 is close to the measuring column 1.

[0041] As gear 31 drives the first gear plate 32 to move, it also drives the second gear plate 41, which meshes with gear 31, to move. This causes the second gear plate 41 to drive the second adjusting tube 43 and the second adjusting rod 44 to move. The second adjusting rod 44 then drives the L-shaped rod 45 to move, and moves the marking block 46 away from the measuring column 1.

[0042] In order to enable the marker block 46 to maintain the same height as the measuring frame 36 in real time, so that the marker block 46 can mark the position height of the measuring frame 36, a telescopic rod 47 is fixedly connected to the side of the second adjusting rod 44 near the measuring column 1. The telescopic rod 47 passes through the measuring column 1 and is fixedly connected to the fixing rod 48. The fixing rod 48 and the first adjusting rod 34 are fixedly connected. The first adjusting tube 33 and the second adjusting tube 43 are both provided with grooves that are adapted to the telescopic rod 47.

[0043] When the measuring frame 36 is no longer affected by the anti-slip block 353 and the anti-slip groove 12, the measuring frame 36 will descend under gravity, which will drive the first adjusting rod 34 to descend. Since the telescopic rod 47 and the fixed rod 48 are connected to one side of the first adjusting rod 34, and the telescopic rod 47 is connected to the second adjusting rod 44, the second adjusting rod 44 will descend together, which will drive the lower end marker block 46 to descend, so that the marker block 46 and the measuring frame 36 are always at the same height, which makes it convenient to record the height position of the measuring frame 36.

[0044] When the first spring 352 drives the anti-slip block 353 to return to its original state, the anti-slip block 353 drives the connecting rod 351 to return to its original state, which in turn drives the first gear plate 32 on it to return to its original state, and the gear 31 to return to its original state. The gear 31 then drives the second gear plate 41 to return to its original state, which in turn drives the lower marking block 46 to return to its original state. This allows the marking block 46 to approach the measuring column 1 and mark it on the measuring column 1, so that the water level height can be marked in real time, which is convenient for recording and observation.

[0045] Through the telescopic rod 47 and the fixed rod 48 in the marking mechanism 4, the movement of the first adjusting rod 34 can drive the movement of the second adjusting rod 44, so that the marking block 46 can descend together with the measurement frame 36, keeping both at the same height. This makes it convenient for the marking block 46 to mark the position of the measurement frame 36, reducing the number of times the staff have to bend over, reducing the staff's labor, and ensuring accurate recording with small errors.

[0046] A limiting groove 9 is provided in the middle of the measuring column 1. The limiting groove 9 is compatible with the telescopic rod 47. The limiting groove 9 serves to stabilize the telescopic rod 47 and limit the telescopic rod 47 without affecting its use, thus facilitating its use.

[0047] Example 3

[0048] Please see Figure 1 , Figure 2 , Figure 6 and Figure 7 Further improvements were made based on Example 2:

[0049] When using the measuring column 1 and the marking mechanism 4 to mark the water level height, if the measuring column 1 is not perpendicular to the ground, it will cause errors in the value marked by the marking block 46, resulting in a large error in the subsequent water level height value and affecting the prediction of water demand. The stabilizing mechanism 5 includes a first bevel gear 51, which is located inside the bottom frame 10 and is rotatably connected to the bottom frame 10. The first bevel gear 51 is meshed with second bevel gears 54 on all four sides. The second bevel gear 54 is fixedly connected to a threaded rod 55 on the side away from the first bevel gear 51. The threaded rod 55 is threadedly connected to a threaded pipe 56 on the side away from the second bevel gear 54 on the same side. The threaded pipe 56 is fixedly connected to a support block 57 on the side away from the threaded rod 55. The support block 57 and the threaded pipe 56 are located inside the support frame 11.

[0050] The measuring column 1 is placed in the area that has been proportionally divided and watered as needed. During the placement of the measuring column 1, the bottom plate 53 is pressed by the ground, which drives the spiral rod 52 to rise and enter the bottom frame 10. Since the spiral rod 52 is threadedly connected to the first bevel gear 51, the spiral rod 52 drives the first bevel gear 51 to rotate. The first bevel gear 51 drives the four second bevel gears 54 on it to rotate. The second bevel gears 54 drive the threaded rod 55 to rotate, which causes the threaded rod 55 to drive the threaded tube 56 to move away from the threaded rod 55 on the same side. This causes the support block 57 to protrude from the support frame 11, so that the support block 57 and the support frame 11 jointly support the measuring column 1, making the measuring column 1 more stable and preventing tilting and shaking.

[0051] To facilitate the activation of the second bevel gear 54 to drive the threaded rod 55 to rotate, a spiral rod 52 is threadedly connected to the middle of the first bevel gear 51. The lower end of the spiral rod 52 is fixedly connected to the pressing plate 53. A spiral groove adapted to the spiral rod 52 is opened in the middle of the first bevel gear 51. The upper end of the spiral rod 52 is fixedly connected to the first elastic element 58. The upper end of the first elastic element 58 is fixedly connected to the inner wall of the bottom frame 10.

[0052] The first elastic element 58 can be restored after the measuring column 1 separates from the ground, and drive the push plate 53 to restore, so that the stabilizing mechanism 5 can be used again.

[0053] The push plate 53 structure allows the screw rod 52 to move during the contact between the measuring column 1 and the ground. This causes the screw rod 52 to rotate the first bevel gear 51, which in turn causes the threaded tube 56 to extend the support block 57 from the support frame 11. The support block 57 and the support frame 11 together support the measuring column 1, improving the stability of the measuring column 1, preventing it from tilting, and reducing the error that occurs when the marking block 46 is marking.

[0054] Example 4

[0055] Please see Figure 1 , Figure 2 and Figure 5 Further improvements were made based on Example 3:

[0056] After repeated use, the stabilizing mechanism 5 will need to be inspected and cleaned for future use. However, the fixed installation method is not convenient for disassembling the bottom frame 10, thus making it inconvenient for the maintenance of the stabilizing mechanism 5. Therefore, the upper end of the bottom frame 10 is fixedly connected to the plug block 2. The plug block 2 is equipped with a snap-fit ​​mechanism 6. The snap-fit ​​mechanism 6 includes a second elastic member 61. The second elastic member 61 is fixedly connected to the plug block 2. The side of the second elastic member 61 away from the plug block 2 is fixedly connected to the limiting plate 62. The side of the limiting plate 62 away from the second elastic member 61 is fixedly connected to the snap-fit ​​block 63.

[0057] During installation, the insert 2 can be directly inserted back into the measuring column 1. During the insertion process, the locking block 63 is squeezed and contracted by the inner wall of the slot, which in turn causes the second elastic element 61 to contract. When the insert 2 is fully inserted, the second elastic element 61 can cause the locking block 63 to return to its original position and engage with the slot, making installation very convenient.

[0058] To facilitate the disassembly of the snap-fit ​​plug 2 and enable the bottom frame 10 to be quickly removed, ejection mechanisms 7 are installed on both sides of the lower end of the measuring column 1. The ejection mechanism 7 includes a fixing ring 71, which is fixedly installed in the slot opened at the lower end of the measuring column 1. A tension spring 72 is fixedly connected to one side of the fixing ring 71, and a connecting ring 73 is fixedly connected to the side of the tension spring 72 away from the fixing ring 71. A top block 74 is fixedly connected to the middle of the connecting ring 73.

[0059] When the bottom frame 10 needs to be inspected, the top block 74 can be pressed to move the connecting ring 73. The connecting ring 73 causes the tension spring 72 to extend and push the locking block 63 located in the slot into the groove opened in the insert block 2. The top block 74 does not enter the groove opened in the insert block 2. Then, the bottom frame 10 can be pulled to separate the insert block 2 from the measuring column 1.

[0060] The ejection mechanism 7 allows the top block 74 to push the locking block 63 into the insert block 2, enabling the insert block 2 to be removed from the slot, facilitating the separation of the bottom frame 10 from the measuring column 1. Furthermore, the second elastic element 61 in the locking mechanism 6 can drive the locking block 63 to engage with the slot, facilitating the reinstallation of the bottom frame 10 and the stabilizing mechanism 5 after maintenance.

[0061] To ensure stable operation of gear 31 and first gear plate 32, a protective frame 8 is fixedly connected to the upper end of measuring column 1. Gear 31 and first gear plate 32 are both located inside the protective frame 8, and the first gear plate 32 and the protective frame 8 are slidably connected.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for predicting water demand in an irrigation area, comprising a measuring column (1), characterized in that: The measuring column (1) is equipped with a measuring mechanism (3) at its upper end, and a marking mechanism (4) is installed on one side of the measuring mechanism (3). The measuring column (1) is attached to a bottom frame (10) at its lower end. The bottom frame (10) is fixedly connected to a support frame (11) at its front, back and sides. The bottom frame (10) is equipped with a stabilizing mechanism (5) at its front, back and sides. The measuring mechanism (3) includes a gear (31), the lower middle part of the gear (31) is rotatably connected to the measuring column (1), the front part of the gear (31) meshes with the first gear plate (32), the rear part of the first gear plate (32) away from the gear (31) is fixedly connected to the first adjusting tube (33), the lower end of the first adjusting tube (33) is slidably connected to the first adjusting rod (34), the lower end of the first adjusting rod (34) is fixedly connected to the connecting block (35), the connecting block (35) is equipped with a measuring frame (36) on the side close to the measuring column (1), and the lower end of the measuring frame (36) is fixedly connected to the float plate (37). The marking mechanism (4) includes a second gear plate (41), which meshes with a gear (31). An extension rod (42) is fixedly connected to the front part of the second gear plate (41) away from the gear (31). A second adjusting tube (43) is fixedly connected to the side of the extension rod (42) away from the second gear plate (41). A second adjusting rod (44) is slidably connected to the lower end of the second adjusting tube (43). An L-shaped rod (45) is fixedly connected to the front part of the lower end of the second adjusting rod (44). 5) A marker block (46) is fixedly connected to the side away from the second adjusting rod (44). The marker block (46) is close to the measuring column (1). A telescopic rod (47) is fixedly connected to the side of the second adjusting rod (44) close to the measuring column (1). A fixed rod (48) is fixedly connected to the side of the telescopic rod (47) passing through the measuring column (1). The fixed rod (48) is fixedly connected to the first adjusting rod (34). A groove adapted to the telescopic rod (47) is opened on both the first adjusting tube (33) and the second adjusting tube (43).

2. The irrigation area water demand prediction device according to claim 1, characterized in that: The measuring frame (36) is fixedly connected to a first spring (352) near the connecting block (35) and to one side. The first spring (352) is fixedly connected to an anti-slip block (353) on the side away from the connecting block (35). The anti-slip block (353) is fixedly connected to a connecting rod (351) in the middle of the side near the connecting block (35). The connecting rod (351) is fixedly connected to the connecting block (35) on the side away from the anti-slip block (353). The gear (31) is fixedly connected to a rotating rod (38) at the upper end. The rotating rod (38) is fixedly connected to a throttle (39) at the upper end. An anti-slip groove (12) is provided on one side of the measuring column (1). The anti-slip block (353) is located in the anti-slip groove (12).

3. The irrigation area water demand prediction device according to claim 1, characterized in that: The upper end of the measuring column (1) is fixedly connected to the protective frame (8), the gear (31) and the first gear plate (32) are both located inside the protective frame (8), and the first gear plate (32) and the protective frame (8) are slidably connected.

4. The irrigation area water demand prediction device according to claim 1, characterized in that: A limiting groove (9) is provided in the middle of the measuring column (1), and the limiting groove (9) is compatible with the telescopic rod (47).

5. The irrigation area water demand prediction device according to claim 1, characterized in that: The stabilizing mechanism (5) includes a first bevel gear (51), which is located inside the bottom frame (10) and rotatably connected to the bottom frame (10). The first bevel gear (51) is meshed with a second bevel gear (54) on all four sides. A threaded rod (55) is fixedly connected to the side of the second bevel gear (54) away from the first bevel gear (51). A threaded tube (56) is threadedly connected to the side of the threaded rod (55) away from the second bevel gear (54) on the same side. A support block (57) is fixedly connected to the side of the threaded tube (56) away from the threaded rod (55). The support block (57) and the threaded tube (56) are located inside the support frame (11).

6. The irrigation area water demand prediction device according to claim 5, characterized in that: The first bevel gear (51) is threadedly connected to a spiral rod (52) in the middle. The lower end of the spiral rod (52) is fixedly connected to a pressing plate (53). The first bevel gear (51) has a spiral groove in the middle that is compatible with the spiral rod (52). The upper end of the spiral rod (52) is fixedly connected to a first elastic element (58). The upper end of the first elastic element (58) is fixedly connected to the inner wall of the bottom frame (10).

7. The irrigation area water demand prediction device according to claim 1, characterized in that: The bottom frame (10) is fixedly connected to the upper end of the plug block (2), and a snap-fit ​​mechanism (6) is installed inside the plug block (2). The snap-fit ​​mechanism (6) includes a second elastic element (61), which is fixedly connected to the plug block (2). A limiting plate (62) is fixedly connected to the side of the second elastic element (61) away from the plug block (2), and a snap-fit ​​block (63) is fixedly connected to the side of the limiting plate (62) away from the second elastic element (61).

8. The irrigation area water demand prediction device according to claim 1, characterized in that: The measuring column (1) is equipped with ejection mechanisms (7) on both sides of its lower end. The ejection mechanism (7) includes a fixing ring (71). The fixing ring (71) is fixedly installed in the slot opened at the lower end of the measuring column (1). A tension spring (72) is fixedly connected to one side of the fixing ring (71). A connecting ring (73) is fixedly connected to the side of the tension spring (72) away from the fixing ring (71). A top block (74) is fixedly connected to the middle of the connecting ring (73).

9. A prediction method for an irrigation district water demand prediction device, employing the irrigation district water demand prediction device as described in claim 1, characterized in that, Includes the following steps: A1. When using, place the measuring column (1) into the area that has been divided proportionally and watered as needed, and use the stabilizing mechanism (5) to make the measuring column (1) stand vertically in the area: A2. Then turn the handle (39) to make the rotating rod (38) drive the gear (31) to rotate, and make the first gear plate (32) drive the first adjusting tube (33) and the first adjusting rod (34) away from the measuring column (1), thereby pulling the measuring frame (36) away from the measuring column (1), so that the measuring frame (36) can be lowered by gravity: A3. After the float plate (37) at the lower end of the measuring frame (36) comes into contact with the water surface, it is affected by buoyancy, so that the measuring frame (36) floats on the water surface, thus enabling the water level height to be observed. The measured height is marked by the driven marking mechanism (4). Then the measuring column (1) can be moved to measure the water level height in other areas and then compare the results.

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