A farmland water level monitoring system

Abstract

The invention discloses a farmland water level monitoring system, which relates to the technical field of agricultural water conservancy water level monitoring, and comprises an outer shell, a cylindrical part and a water storage tank, wherein a hollow pipe is fixedly installed at the bottom of the inner cavity of the cylindrical part, a detection mechanism for detecting the tightness of planting soil is arranged in the inner cavity of the hollow pipe, a water level control mechanism for regulating the water level according to the tightness of planting soil is installed between the top end surface of the hollow pipe and the bottom of the water storage tank, a floating scale assembly for water level monitoring is installed in the inner cavity of the outer shell, and the floating scale assembly monitors the rise and fall of water level. When monitoring the water level of a planting farmland, the invention first detects the tightness of the planting soil, and then controls the water level according to the tightness of the planting soil, so that planting soils of different tightness maintain different water levels, and at the same time, the planting farmland is given the most effective amplitude for coping with the change of water level.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural water conservancy water level monitoring, in particular to a farmland water level monitoring system. Background Art

[0002] In farmland water conservancy projects, it is particularly important to monitor and adjust the water level of crops. When the water level in the farmland is too high, it will cause the root system of crops to rot due to lack of oxygen. When the water level in the farmland is too low, it will have an adverse effect on the photosynthesis of crops and hinder the absorption of nutrients. Therefore, whether the water level is too high or too low, it will affect the growth of crops. This requires monitoring and adjusting the water level in the farmland.

[0003] After a long period of research, we found that the planting soil in the farmland will be affected differently after each round of planting different crops, resulting in differences in the softness of the planting soil at the bottom. The planting soil of different softness has different requirements for water levels. The softer the planting soil, the higher the porosity, which means it can accommodate more air and water. The optimal growth water level is also lower than that of compact planting soil. However, the water level monitoring we currently use often ignores this point and the impact of the looseness of the planting soil on the water level, resulting in the water level of crops not being in a suitable position, which affects growth and development, resulting in a decrease in overall yield and a decrease in the quality of crops. Summary of the invention

[0004] The water level also has a relatively large impact on the yield of crops, so it is particularly important to ensure a reasonable water level throughout the entire process of crop growth. Therefore, the purpose of the present invention is to provide a farmland water level monitoring system to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a farmland water level monitoring system, comprising an outer shell, a cylindrical portion is arranged on the left side of the outer shell, a water storage tank is fixedly installed on the upper end of the cylindrical portion, a hollow pipe is fixedly installed on the bottom of the inner cavity of the cylindrical portion, a detection mechanism for detecting the tightness of planting soil is arranged in the inner cavity of the hollow pipe, a water level control mechanism for regulating the water level according to the tightness of planting soil is installed between the top end surface of the hollow pipe and the bottom of the water storage tank, a floating scale assembly for water level monitoring is installed in the inner cavity of the outer shell, the floating scale assembly monitors the rise and fall of the water level, and the rise and fall of the water level is detected by the detection mechanism. The water level of farmlands with different degrees of soil tightness can be regulated by reducing the amplitude of the water drop. The water level regulating mechanism includes a bevel gear component rotatably installed on the upper end face of the hollow pipe component, the upper end face of the bevel gear component is fixedly provided with an outer ring cylinder, the outer ring cylinder is provided with outer through holes equidistantly distributed, the inner cavity of the outer ring cylinder is rotatably connected with an inner ring cylinder, the upper end of the inner ring cylinder is rotatably connected to the bottom of the water tank and is directly connected to the inner cavity of the water tank, the edge of the upper end face of the inner ring cylinder abuts against the upper end face of the outer ring cylinder, the inner ring cylinder is provided with inner through holes equidistantly distributed with a number corresponding to the outer through holes, and a center cylinder is fixedly installed in the middle of the inner ring cylinder.

[0006] Preferably, arc-shaped grooves are evenly distributed on the upper end surface of the outer ring cylinder, and each of the arc-shaped grooves is located between two adjacent outer through holes. Limiting columns are evenly distributed and fixedly installed on the lower end of the edge portion of the upper end surface of the inner ring cylinder, and each of the limiting columns is slidably connected to the corresponding arc-shaped groove. A touch sensor is installed in the inner cavity of each arc-shaped groove at the tail in the counterclockwise direction.

[0007] Preferably, the detection mechanism includes a counterweight column slidably installed in the inner cavity of the hollow tube, the lower end face of the counterweight column is fixedly connected to a pointed cone nail, the pointed cone nail slides through the bottom of the cylindrical portion, the upper end face of the counterweight column is fixedly provided with an annular cylinder portion, the upper end of the annular cylinder portion is rotatably connected to a drain pipe, the lower end of the drain pipe extends downward and passes through the inner cavity of the annular cylinder portion, the bottom end of the drain pipe is fixedly connected to a trumpet suction nozzle, and two water inlet holes are equidistantly arranged on the annular cylinder portion, the upper end of the drain pipe passes through the bevel gear component and the center cylinder portion to enter the inner cavity of the water tank, and the drain pipe is rotatably connected to the bevel gear component.

[0008] Preferably, a convex block is fixedly provided on the outer end surface of the drain pipe, a slide groove is provided on the inner cavity side wall of the central cylinder, and the convex block is slidably connected in the slide groove.

[0009] Preferably, the floating ruler assembly includes a floating plate portion slidably installed in the inner cavity of the outer shell, the upper end surface of the floating plate portion is provided with a column portion, the upper end surface of the column portion is fixedly provided with a pointing tooth, the left end of the column portion is provided with a thickened portion, the thickened portion is provided with a meshing area, and the rear side walls of the meshing area are respectively provided with meshing teeth.

[0010] Preferably, a top cover is fixedly mounted on the upper end surface of the outer shell, the column portion passes through the opening in the top cover, an extension portion is fixedly connected to the lower end surface of the top cover, a transmission shaft is rotatably connected to the extension portion, a transmission bevel gear is fixedly connected to the left end of the transmission shaft, the transmission bevel gear and the bevel gear member are meshed with each other, a sleeve portion is splined at the right end of the transmission shaft, a spur gear is fixedly mounted on the right end surface of the sleeve portion, the spur gear can mesh with the meshing teeth in the meshing area, a handle portion is rotatably connected to the left end of the sleeve portion, a rectangular opening is provided on the rear end surface of the outer shell, and the handle portion passes through the rectangular opening.

[0011] Preferably, a water level mark is arranged on the outer end surface of the water storage tank, and the tip of the pointing tooth points to the water level mark.

[0012] Preferably, water inlet holes 1 are distributed at the bottom of the front and rear side walls of the outer shell, and a strip opening is provided at the bottom of the hollow pipe.

[0013] Preferably, it further comprises a main water tank, wherein a sliding arm is slidably mounted on the outer end surface of the main water tank, a fixing portion is fixedly connected to the bottom of the sliding arm, and the outer shell is fixedly mounted on the fixing portion.

[0014] Preferably, the upper end surface of the water tank is connected to a water pipe 1, one end of which extends into the inner cavity of the water tank and is connected to an elastic hose between the top port of the drain pipe, and the other end is connected to the water suction pump in the main water tank. An annular water outlet is provided at the bottom of the main water tank, and a water pipe 2 is connected between the annular water outlet and the water tank.

[0015] In summary, the beneficial effects of the present invention are:

[0016] The present invention, when monitoring the water level of the planting farmland, first detects the looseness of the planting soil, and then regulates the water level according to the looseness of the planting soil. Planting soils of different tightnesses maintain different water levels, and at the same time, the planting farmland is given the most effective response to the change in water level, thereby maximizing the growth safety of crops during the process of rising and falling water levels, and will not affect growth and development due to excessively high or low water levels, ensuring that crops can fully grow throughout the entire growth and development process, thereby greatly increasing crop yields. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a farmland water level monitoring system of the present invention;

[0019] Figure 2 This is a structural schematic diagram of a farmland water level monitoring system of the present invention from another perspective;

[0020] Figure 3 This is a schematic diagram of the main cross-sectional structure of a farmland water level monitoring system of the present invention;

[0021] Figure 4 It is a schematic diagram of the partial enlarged structure of point A in the present invention 3;

[0022] Figure 5 This is a schematic diagram of the structure of a water level control mechanism in a farmland water level monitoring system of the present invention;

[0023] Figure 6 It is a schematic diagram of another perspective of the structure of a water level control mechanism in a farmland water level monitoring system of the present invention;

[0024] Figure 7 It is a schematic diagram of the local structure of the convex block portion on the drainage pipe in a farmland water level monitoring system of the present invention;

[0025] Figure 8 This is a schematic diagram of the inner ring structure in a farmland water level monitoring system of the present invention;

[0026] Fig. 9 This is a structural schematic diagram of the inner ring cylinder in a farmland water level monitoring system of the present invention from another perspective;

[0027] Fig.10 This is a schematic diagram of the outer ring structure in a farmland water level monitoring system of the present invention;

[0028] Fig.11 It is a schematic diagram of the expanded structure of a water level control mechanism in a farmland water level monitoring system of the present invention;

[0029] Fig.12 This is a schematic diagram of the structure of an outer shell in a farmland water level monitoring system of the present invention;

[0030] Fig.13 It is a structural schematic diagram of a floating ruler assembly in a farmland water level monitoring system of the present invention;

[0031] Fig.14 This is a schematic diagram of the structure of a detection mechanism in a farmland water level monitoring system of the present invention;

[0032] Fig.15 It is a schematic diagram of the expanded structure of a detection mechanism in a farmland water level monitoring system of the present invention;

[0033] Fig.16 This is a schematic diagram of the structure of an embodiment of a farmland water level monitoring system of the present invention;

[0034] Fig.17 A schematic diagram of the structure of an embodiment of a farmland water level monitoring system of the present invention;

[0035] Fig.18 It is a schematic diagram of the plane positions of the inner through hole and the outer through hole in a farmland water level monitoring system of the present invention;

[0036] The symbols in the drawings are described as follows: outer shell 10; cylindrical portion 11; water inlet hole 12; hollow pipe 13; strip opening 14; water storage tank 15; elastic hose 16; top cover 17; rectangular opening 18; floating scale assembly 20; floating plate portion 21; column portion 22; pointing teeth 23; meshing area 24; detection mechanism 30; counterweight column 31; pointed cone nail 32; annular cylinder portion 33; drain pipe 34; trumpet nozzle 35; water inlet hole 2 36; convex block portion 37 ; Water level control mechanism 40; Inner ring cylinder 41; Central cylinder 42; Outer ring cylinder 43; Bevel gear member 44; Transmission bevel gear 45; Transmission shaft 46; Inner through hole 47; Outer through hole 48; Slide groove 49; Limit column 50; Arc groove 51; Touch sensor 52; Extension part 53; Handle part 54; Sleeve part 55; Straight gear 56; Main water tank 60; Sliding arm 61; Fixed part 62; Annular water outlet part 63; Water pipe one 64; Water pipe two 65. DETAILED DESCRIPTION

[0037] The present invention will now be further described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic way, and therefore they only show the structures related to the present invention.

[0038] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0039] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0040] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0041] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of at least two elements or the interaction relationship between at least two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Combine the following Figure 1-18 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are the same as Figure 3 The view direction is consistent in front, back, left, right, up and down directions. Figure 3 is a front view of the device of the present invention, Figure 3 The directions shown are consistent with the front, back, left, right, up and down directions of the device of the present invention when viewed from the front.

[0043] See also Figure 1-18The present invention provides an embodiment: a farmland water level monitoring system, comprising a main water tank 60, a sliding arm 61 and an outer shell 10, wherein the sliding arm 61 is adjustable and slidably mounted on the outer end surface of the main water tank 60, and is installed and set according to the number of farmlands to be monitored, and the main water tank 60 is installed at the center of four farmlands, and a fixing part 62 is fixedly arranged at the lower end of the sliding arm 61, and each of the fixing parts 62 is respectively fixedly mounted with the outer shell 10, and each of the fixing parts 62 is respectively fixedly mounted with the outer shell 10, The outer shell 10 is extended into the corresponding farmland planting area. A cylindrical portion 11 is provided on the left side of the outer shell 10. A water storage tank 15 is fixedly installed on the upper end of the cylindrical portion 11. An annular water outlet 63 is provided at the bottom of the main water tank 60. A water pipe 65 is connected between the annular water outlet 63 and the water storage tank 15 to provide water to the water storage tank 15 at any time. A hollow pipe 13 is fixedly installed at the bottom of the inner cavity of the cylindrical portion 11. A strip-shaped pipe 13 is provided at the bottom of the hollow pipe 13. Opening 14, and a detection mechanism 30 for detecting the tightness of the planting soil is arranged in the inner cavity of the hollow pipe 13. Since the looseness of the planting soil in the farmland is different, the water level required for planting the same crop is also different. For soft soil, the required water level is lower than that for compact soil. Therefore, when monitoring the water level of the farmland, the looseness of the planting soil in the farmland is preferentially detected by the detection mechanism 30, so that the water level of the farmland is regulated according to the looseness of the planting soil, and a water level control mechanism 40 for regulating the water level according to the tightness of the planting soil is installed between the top end face of the hollow pipe 13 and the bottom of the water storage tank 15, and a float scale assembly 20 for water level monitoring is installed in the inner cavity of the outer shell 10, and the float scale assembly 20 monitors the rise and fall of the water level, and controls the water level of the farmland with planting soil of different tightness through the rise and fall amplitude of the water level, so as to fully realize the accurate monitoring and control of the water level of the farmland to ensure the growth of crops.

[0044] It is worth mentioning that, in this embodiment, reference Figure 3 , Fig.14 and Fig.15The detection mechanism 30 for detecting the tightness of the farmland planting soil includes a counterweight column 31 slidably installed in the inner cavity of the hollow pipe 13, and the lower end surface of the counterweight column 31 is fixedly connected with a pointed cone nail 32, and the pointed cone nail 32 slides through the bottom of the cylindrical part 11, and the counterweight gravity of the counterweight column 31 is naturally pressed to insert the pointed cone nail 32 into the planting soil. When the planting soil is loose, the pointed cone nail 32 is inserted deeper, and the tighter the soil, the shallower the insertion distance. A ring cylinder part 33 is fixedly provided on the upper end surface of the counterweight column 31, and a drainage pipe 34 is rotatably connected to the upper end of the ring cylinder part 33, and the lower end of the drainage pipe 34 extends downward and penetrates into the inner cavity of the ring cylinder part 33. The bottom end of the drain pipe 34 is fixedly connected to a trumpet suction nozzle 35, the upper end of the drain pipe 34 extends into the water tank 15, and a water pipe 64 is connected to the upper end surface of the water tank 15, one end of the water pipe 64 extends into the inner cavity of the water tank 15 and is connected to an elastic hose 16 between the top end of the drain pipe 34, and the other end is connected to the water suction pump in the main water tank 60, and water inlet holes 36 are equidistantly arranged on the annular cylinder portion 33, so that when it rains or other conditions cause the water level in the farmland to be too high, water enters the inner cavity of the annular cylinder portion 33 through the strip opening 14 and the water inlet hole 36, and is sucked out by the trumpet suction nozzle 35 to lower the water level.

[0045] It is also worth mentioning that, in this embodiment, reference Figure 3 — Fig.11 The water level regulating mechanism 40 for regulating the water level according to the tightness of the planting soil includes a bevel gear member 44 rotatably mounted on the upper end surface of the hollow pipe member 13, an outer ring cylinder 43 is fixedly arranged on the upper end surface of the bevel gear member 44, six outer through holes 48 are evenly distributed on the outer ring cylinder 43, an inner ring cylinder 41 is rotatably connected in the inner cavity of the outer ring cylinder 43, the upper end of the inner ring cylinder 41 is rotatably connected to the bottom of the water storage tank 15, and is directly connected to the inner cavity of the water storage tank 15, and the edge of the upper end surface of the inner ring cylinder 41 abuts against the upper end of the outer ring cylinder 43 The inner ring tube 41 is provided with inner through holes 47 of a number corresponding to the outer through holes 48 at equal intervals, and a central cylinder 42 is fixedly installed in the middle of the inner ring tube 41, wherein the upper end of the drain pipe 34 passes through the bevel gear member 44 and the central cylinder 42 to enter the inner cavity of the water storage tank 15, and the drain pipe 34 is rotatably connected to the bevel gear member 44, and a convex block 37 is fixedly provided on the outer end surface of the drain pipe 34, and a slide groove 49 is provided on the inner cavity side wall of the central cylinder 42, and the convex block 37 is slidably connected in the slide groove 49;

[0046] That is, when the pointed cone nail 32 is inserted into the planting soil, the insertion depth is the distance that the drain pipe 34 moves downward, so that the protrusion 37 slides downward along the slide groove 49. Since the drain pipe 34 is in a fixed state, the inner ring cylinder 41 rotates counterclockwise during the downward sliding of the drain pipe 34.

[0047] It should be noted that, in the present embodiment, arc grooves 51 are evenly spaced on the upper end surface of the outer ring tube 43, and each of the arc grooves 51 is located between two adjacent outer through holes 48. Limiting columns 50 are evenly spaced and fixedly installed on the lower end of the edge portion of the upper end surface of the inner ring tube 41, and each of the limiting columns 50 is slidably connected in the corresponding arc groove 51. A touch sensor 52 is installed in the tail of the inner cavity of each arc groove 51 in the counterclockwise direction, wherein the touch sensor 52 is electrically connected to the water suction pump in the main water tank 60. Once the limiting column 50 abuts against the touch sensor 52, the induction is triggered, so that the water suction pump in the main water tank 60 is started, so that the water in the farmland is sucked in through the trumpet suction nozzle 35 and sucked into the drainage pipe 34 for reflux, thereby lowering the water level in the farmland.

[0048] In general, when the outer shell 10 is placed in a farmland, the bottom of the outer shell 10 is located slightly above the planting soil layer to ensure that water can enter the inner cavity of the outer shell 10 from the bottom of the outer shell 10 and the water inlet hole 12, so that the pointed cone nail 32 will be inserted into the planting soil. The looser the soil, the deeper the insertion depth, and the insertion depth is the distance the drain pipe 34 moves downward, which will drive the inner ring cylinder 41 to rotate counterclockwise. In the initial state, when the outer shell 10 has not yet been put into the farmland, the pointed cone nail 32 has not extended out of the bottom of the outer shell 10, and the inner through hole 47 and the outer through hole 48 are correspondingly connected to each other. Once used, the outer shell 10 is placed in the farmland. The bottom of the body 10 is located a little above the planting soil layer, so that the pointed cone nail 32 can at least descend the distance from the outer shell 10 to the planting soil layer, which is the minimum distance for the drainage pipe 34 to descend when in use. In addition, due to the characteristics of the planting soil, when in use, the drainage pipe 34 slides downward a distance sufficient to allow the inner ring cylinder 41 to rotate counterclockwise, so that the inner through hole 47 and the outer through hole 48 are misaligned, so that the inner through hole 47 is located on the right side of the outer through hole 48, and the inner through hole 47 is not connected to the outer through hole 48, so that the water in the water tank 15 will not automatically flow into the farmland. Since the limit column 50 is slidably embedded in the arc-shaped groove 51 to form a limit, the inner ring cylinder 41 can only rotate counterclockwise in the initial state, which can be referred to. Fig.18For example, the depth of the pointed cone nail 32 inserted downward is H, and the inner through hole 47a moved by the rotation angle of the inner ring tube 41 is S1. At this time, the distance between the inner through hole 47a and the outer through hole 48b is S2, and the distance between the inner through hole 47a and the outer through hole 48a is S1;

[0049] When the outer ring 43 rotates counterclockwise, it needs to rotate a distance S1 to connect the outer through hole 48a and the inner through hole 47a. Once connected, the water source prepared in the water storage tank 15 will flow into the farmland through the connected outer through hole 48 and the inner through hole 47 to replenish the farmland with water.

[0050] When the outer ring tube 43 rotates clockwise, it needs to rotate a distance of S2 to connect the outer through hole 48b with the inner through hole 47a. However, since the limiting column 50 slides in the arc-shaped groove 51, when the outer ring tube 43 rotates clockwise, the limiting column 50 will be preferentially stuck at the position of the touch sensor 52, thereby squeezing the touch sensor 52 while limiting the position to avoid the connection between the outer through hole 48b and the inner through hole 47a. At the same time, the limiting column 50 abuts against the touch sensor 52, triggering the induction, so that the water suction pump in the main water tank 60 is started, thereby sucking water in the farmland through the horn suction nozzle 35 and sucking it into the drainage pipe 34 for reflux, thereby lowering the water level in the farmland;

[0051] That is, when the planting soil is relatively compact, H is relatively small, making S1 small and S2 large. When the planting soil is relatively loose, H is relatively large, S1 is also large, and S2 is small. As a result, as the degree of looseness of the planting soil gradually increases, S1 also gradually increases, while S2 gradually decreases. That is, the softer the soil, the larger the S1 distance needs to be rotated to replenish the farmland, and the smaller the S2 distance needs to be rotated to drain the farmland.

[0052] It should be noted that the softer the planting soil, the easier it is for the same crop to penetrate into the deeper soil layer due to the higher porosity and better air and water circulation in the soft soil, which means that the water content in the planting soil itself will be higher. At the same time, this means that if the water level is too high, it may cause water to penetrate quickly, making the surface soil dry and not conducive to crop growth. Since the soft planting soil itself has a high water content, the amplitude of the water level drop can be higher, while the amplitude of the water level rise should be lower to avoid rapid water infiltration.

[0053] The more compact the planting soil is, the lower the porosity of the soil is, and the poorer the air and water permeability is. Therefore, it is not easy for water to penetrate into the deeper soil layers, which makes the water content of the planting soil itself lower. Therefore, the water level requirement is higher than that of the loose soil layer to ensure that the water can better penetrate into the soil. Therefore, for compact planting soil, the amplitude of water level drop is lower. Once the water level drops too low, it is not easy for water to penetrate, which is not conducive to the growth of plants. However, the amplitude of water level rise is higher.

[0054] It is also worth mentioning that, in the present embodiment, the float ruler assembly 20 for monitoring and indicating the water level in the farmland includes a float plate portion 21 slidably mounted in the inner cavity of the outer shell 10. When the water in the farmland enters from the water inlet hole 12 at the bottom of the outer shell 10, the float plate portion 21 floats up due to the buoyancy of the water, and a column portion 22 is arranged on the upper end surface of the float plate portion 21, and a pointing tooth 23 is fixedly arranged on the upper end surface of the column portion 22, and the tip of the pointing tooth 23 points to the water level mark arranged on the outer end surface of the water storage tank 15, so that people can see the water level more intuitively, and a thickened portion is arranged on the left end of the column portion 22, and a meshing area 24 is arranged in the thickened portion, and meshing teeth are respectively arranged on the rear side walls of the meshing area 24, and the upper end of the outer shell 10 A top cover 17 is fixedly installed on the surface, the column part 22 passes through the opening in the top cover 17, the lower end surface of the top cover 17 is fixedly connected with an extension part 53, the extension part 53 is rotatably connected with a transmission shaft 46, the left end of the transmission shaft 46 is fixedly connected with a transmission bevel gear 45, the transmission bevel gear 45 and the bevel gear member 44 are meshed with each other, the right end of the transmission shaft 46 is splined with a sleeve part 55, the right end surface of the sleeve part 55 is fixedly installed with a spur gear 56, the left end of the sleeve part 55 is rotatably connected with a handle part 54, a rectangular opening 18 is provided on the rear end surface of the outer shell 10, the handle part 54 passes through the rectangular opening 18, and the meshing between the spur gear 56 and the meshing teeth in the meshing area 24 can be achieved by holding the handle part 54 for sliding;

[0055] When in use, the outer shell 10 is placed in the crop area, and the water in the farmland will enter the inner cavity of the outer shell 10, so that the float plate part 21 floats up, and the initial water level in the farmland is displayed by the pointing tooth 23. The initial water level in the farmland is a relatively good water level. At this time, when the water level needs to be monitored, the handle part 54 is slid to the right to make the spur gear 56 mesh with the meshing teeth in the meshing area 24, and then when the water level rises, the column part 22 moves upward, thereby driving the spur gear 56 to rotate, thereby driving the transmission bevel gear 45 to rotate, and then driving the outer ring cylinder 43 to rotate clockwise for drainage. When the water level drops, the column part 22 moves downward, thereby driving the outer ring cylinder 43 to rotate counterclockwise for water replenishment.

[0056] It should be noted that, in order to further improve the stability of the floating plate portion 21 , in the present embodiment, an arc plate is provided at the left end of the floating plate portion 21 , and the arc plate is slidably clamped on the outer end surface of the hollow tube 13 .

[0057] When in use, the main water tank 60 is installed at the center of the four planting fields, and the position of the sliding arm 61 is adjusted to allow the corresponding outer shell 10 to extend into the planting field so that the bottom of the outer shell 10 is located slightly above the planting soil layer, ensuring that water can enter the inner cavity of the outer shell 10 from the bottom of the outer shell 10 and the water inlet hole 12. At this time, the weight of the counterweight column 31 naturally presses the pointed cone nail 32 into the planting soil. When the planting soil is soft, the pointed cone nail 32 is inserted deeper. The tighter the soil, the shallower the insertion distance. The insertion depth is the distance that the drain pipe 34 moves downward, so that the protrusion The portion 37 slides downward along the slide groove 49, and the inner ring cylinder 41 rotates counterclockwise. The softer the soil, the greater the distance the drain pipe 34 moves downward, and the greater the rotation angle of the outer ring cylinder 43. At this time, the offset distance between the inner through hole 47 and the outer through hole 48 is also greater. At the same time, the water in the farmland will enter the inner cavity of the outer shell 10, so that the floating plate portion 21 floats up, and the initial water level in the farmland is displayed by the pointing tooth 23. The initial water level in the farmland is a relatively good water level. Then the handle portion 54 is slid to the right, so that the spur gear 56 is meshed with the meshing teeth in the meshing area 24, and the water in the farmland is adjusted. When the water level in the farmland decreases, the float 21 drops, the column 22 moves downward, and then drives the outer ring 43 to rotate counterclockwise, so that the outer through hole 48 and the inner through hole 47 are connected. Once connected, the water source prepared in the water storage tank 15 will flow into the farmland through the connected outer through hole 48 and the inner through hole 47 to replenish the water in the farmland. When the soil is softer, the outer ring 43 rotates a greater distance, and the corresponding water level drops a greater amount. When the water level in the farmland rises, the column 22 moves upward, thereby driving the spur gear 56 to rotate, thereby driving the transmission bevel gear 45 to rotate. The outer ring cylinder 43 is driven to rotate clockwise, so that the limit column 50 slides in the arc groove 51, and the limit column 50 is preferentially stuck in the position of the touch sensor 52, so as to squeeze the touch sensor 52 and limit it at the same time, so as to avoid the connection between the outer through hole 48b and the inner through hole 47a. At the same time, the limit column 50 abuts against the touch sensor 52, which triggers the induction, so that the water suction pump in the main water tank 60 is started, so that the water in the farmland is sucked in through the trumpet suction nozzle 35, and the water is sucked into the drain pipe 34 for reflux, thereby lowering the water level in the farmland. When the soil is softer, the corresponding water level rise is smaller.

[0058] In summary, the present invention, when monitoring the water level of the planting farmland, first detects the looseness of the planting soil, and then regulates the water level according to the looseness of the planting soil. Planting soils of different tightnesses maintain different water levels, and at the same time, the planting farmland is given the most effective way to cope with the change in water level, thereby maximizing the growth safety of crops during the process of rising and falling water levels, and will not affect growth and development due to excessively high or low water levels, ensuring that crops can fully grow throughout the growth and development process, thereby greatly increasing crop yields.

[0059] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited to it. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the invention. Therefore, the protection scope of the invention should be based on the protection scope defined in the claims.

Claims

1. A farmland water level monitoring system, comprising an outer shell (10), characterized in that: A cylindrical portion (11) is provided on the left side of the outer shell (10), a water storage tank (15) is fixedly mounted on the upper end of the cylindrical portion (11), a hollow pipe (13) is fixedly mounted on the bottom of the inner cavity of the cylindrical portion (11), a detection mechanism (30) for detecting the tightness of the planting soil is provided in the inner cavity of the hollow pipe (13), a water level control mechanism (40) for controlling the water level according to the tightness of the planting soil is installed between the top end surface of the hollow pipe (13) and the bottom of the water storage tank (15), a floating scale assembly (20) for water level monitoring is installed in the inner cavity of the outer shell (10), the floating scale assembly (20) monitors the rise and fall of the water level, and detects the tightness of the planting soil according to the rise and fall amplitude of the water level. The water level of a farmland containing soil is regulated, and the water level regulating mechanism (40) comprises a bevel gear member (44) rotatably mounted on the upper end face of the hollow pipe member (13); an outer ring cylinder (43) is fixedly provided on the upper end face of the bevel gear member (44); outer through holes (48) are evenly distributed on the outer ring cylinder (43); an inner ring cylinder (41) is rotatably connected to the inner cavity of the outer ring cylinder (43); the upper end of the inner ring cylinder (41) is rotatably connected to the bottom of the water storage tank (15) and is directly connected to the inner cavity of the water storage tank (15); the edge of the upper end face of the inner ring cylinder (41) abuts against the upper end face of the outer ring cylinder (43); inner through holes (48) are evenly distributed on the inner ring cylinder (41) and the number of which corresponds to the outer through holes (48) is equidistantly distributed. The inner ring tube (41) has a central cylinder (42) fixedly installed in the middle thereof, and the upper end surface of the outer ring tube (43) is provided with arc grooves (51) equidistantly distributed thereon, and each of the arc grooves (51) is located between two adjacent outer through holes (48). The lower end of the edge of the upper end surface of the inner ring tube (41) is provided with limit columns (50) equidistantly distributed thereon, and each of the limit columns (50) is slidably connected to the corresponding arc groove (51). A touch sensor (52) is installed at the tail of the inner cavity of each arc groove (51) in the counterclockwise direction. The detection mechanism (30) includes a counterweight column (31) slidably installed in the inner cavity of the hollow tube (13). The lower end surface of the counterweight column (31) is fixedly connected with a pointed cone nail (32), and the pointed cone nail (32) slides through the bottom of the cylindrical part (11). The upper end surface of the counterweight column (31) is fixedly provided with an annular cylinder part (33), and two water inlet holes (36) are evenly distributed on the annular cylinder part (33). The upper end of the annular cylinder part (33) is rotatably connected with a drainage pipe (34), and the lower end of the drainage pipe (34) extends downward and penetrates into the inner cavity of the annular cylinder part (33). The drainage pipe (34) is rotatably connected to the bevel gear part (44). The floating ruler assembly (20) includes a floating plate part (21) slidably installed in the inner cavity of the outer shell (10), and the upper end surface of the floating plate part (21) is provided with a column part (22).The upper end surface of the column portion (22) is fixedly provided with a pointing tooth (23); the left end of the column portion (22) is provided with a thickened portion, a meshing area (24) is provided in the thickened portion, and meshing teeth are respectively provided on the rear side walls of the meshing area (24); the upper end surface of the outer shell (10) is fixedly mounted with a top cover (17); the column portion (22) passes through an opening in the top cover (17); and the lower end surface of the top cover (17) is fixedly connected with an extension portion (53). The extension part (53) is rotatably connected to a transmission shaft (46), the left end of the transmission shaft (46) is fixedly connected to a transmission bevel gear (45), the transmission bevel gear (45) and the bevel gear member (44) are meshed with each other, the right end of the transmission shaft (46) is spline-connected to a sleeve part (55), the right end surface of the sleeve part (55) is fixedly mounted with a spur gear (56), and the spur gear (56) can mesh with the meshing teeth in the meshing area (24).

2. A farmland water level monitoring system according to claim 1, characterized in that: The bottom end of the drainage pipe (34) is fixedly connected to a trumpet suction nozzle (35), and the upper end of the drainage pipe (34) passes through the bevel gear part (44) and the central cylinder (42) to enter the inner cavity of the water storage tank (15).

3. A farmland water level monitoring system according to claim 2, characterized in that: A convex block (37) is fixedly provided on the outer end surface of the drainage pipe (34), a slide groove (49) is provided on the inner cavity side wall of the central cylinder (42), and the convex block (37) is slidably connected in the slide groove (49).

4. A farmland water level monitoring system according to claim 3, characterized in that: The left end of the sleeve portion (55) is rotatably connected to a handle portion (54), and a rectangular opening (18) is provided on the rear end surface of the outer shell (10), and the handle portion (54) passes through the rectangular opening (18).

5. A farmland water level monitoring system according to claim 4, characterized in that: A water level scale line is arranged on the outer end surface of the water storage tank (15), and the tip of the pointing tooth (23) points to the water level scale line.

6. A farmland water level monitoring system according to claim 1, characterized in that: Water inlet holes (12) are arranged at the bottom of the front and rear side walls of the outer shell (10), and a strip opening (14) is arranged at the bottom of the hollow pipe (13).

7. A farmland water level monitoring system according to claim 1, characterized in that: It also comprises a main water tank (60), wherein a sliding arm (61) is slidably mounted on the outer end surface of the main water tank (60), a fixing portion (62) is fixedly connected to the bottom of the sliding arm (61), and the outer shell (10) is fixedly mounted on the fixing portion (62).

8. A farmland water level monitoring system according to claim 7, characterized in that: The upper end surface of the water storage tank (15) is connected to a water pipe 1 (64); one end of the water pipe 1 (64) extends into the inner cavity of the water storage tank (15) and is connected to an elastic hose (16) between the top end of the drainage pipe (34); the other end is connected to a water suction pump in the main water tank (60); an annular water outlet (63) is provided at the bottom of the main water tank (60); a water pipe 2 (65) is connected between the annular water outlet (63) and the water storage tank (15).

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