JP3072058U - Paddy water level measuring instrument - Google Patents

Abstract

(57) [Summary] [Problem] To eliminate cost burden by inaccurate scale measurement and advanced mechanical measurement system, with simple structure, not only more accurate water level measurement but also judgment of turbidity of paddy water at the same time The purpose was to easily carry out. SOLUTION: A tubular member having both ends open is formed of a transparent member capable of recognizing an internal liquid level, and an opening (10b) is formed at one open end side (10) of the thumb so that it can be closed with a belly of the thumb. A water level measuring pipe (1) having a scale (12) in the longitudinal direction thereof, and an open end (11) of the water level measuring pipe having a surface substantially perpendicular to the pipe axis and a substantially central portion. A ground plate (2) having a plate-like shape having an inundation hole (20) communicating with the inside of the water level measuring tube and having an upper surface colored substantially white is attached to the portion.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention belongs to the field of measuring instruments for determining the irrigation water level of a paddy field, and particularly relates to a simple paddy water level measuring instrument that recognizes the water level and turbidity state by visual measurement.

[0002]

[Premise of invention]

 The effect of chemicals on weeding and fertilization in paddy fields was greatly affected by the irrigation water level in the paddy fields. In other words, if the water level is deep, the diffusion to the whole rice paddy field is good, but the effect of the chemicals on the bottom soil tends to be delayed and the effect tends to diminish. Conversely, if the water level is shallow, the diffusion will be sufficient. There is a risk that the drug will be unevenly settled and the drug effect will be uneven.

[0003] In addition, the turbidity of paddy water also affects the efficacy of the chemical, and when the degree of turbidity is large, the sprayed chemical adheres to garbage or fine soil particles that are causing turbidity, and is deposited on the bottom soil. There was a drawback that the arrival of was delayed. For this reason, paddy farmers use many nerves to fill the paddy fields, the water level, or the turbidity state, and select the optimal spraying time.

[0004]

[Prior art]

 Conventionally, the water level of such a paddy field has been measured simply by placing a ruler or the like near the bottom of the paddy field and visually checking the scale. Further, as a simple machine, there is a depth gauge which visually checks a scale of a display portion indicated by an operation rod connected to a float (float or the like), and is disclosed in Registered Utility Model No. 3031460.

[0005] Furthermore, as a more mechanized and systemized device, a bottomed cylindrical shape with an open bottom is grounded at an appropriate position in a paddy field, and a sensor detects a pressure change in the cylinder due to a change in water level. There is also a method in which an electric signal is sent to a remote place to make a decision at a place remote from the paddy field. The turbidity of the paddy field is measured by a machine such as a turbidity meter, but most of the turbidity is visually observed only from around the paddy field.

[0006]

[Problems to be solved by the invention]

 However, in measurements using a ruler, especially in soft soil immediately after scraping in a paddy field, the ruler end, which is the starting point of the measurement, is buried in the soil at each measurement or at each measurement location. The water level could not be measured and was only a rough guide. In addition, they were forced to take an unreasonable posture because they were not able to see them at hand, and they also had poor scaffolding.

[0007] Since a simple mechanical type using a float is often used while being installed in a paddy field, there has been a problem in the reliability of its operating mechanism in long-term use. The cost was enormous in terms of the number. In addition, when harvesting or plowing the following year, the tractor was obstructed from running and had to be removed once, which was very complicated. Furthermore, the mechanized and systemized equipment was not an option for small farmers as well as large-scale farmers with large facilities and high maintenance costs.

[0008]

【Purpose】

 Therefore, the present invention provides a paddy water level measuring instrument that can be manufactured at a low cost with a simple structure and that not only measures the water level more accurately but also easily determines the degree of turbidity of the paddy water at the same time. Is what you do.

[0009]

[Means for Solving the Problems]

 To achieve the above object, the paddy water level measuring instrument of the present invention is configured as follows. That is, it is formed in a tubular shape with both ends opened by a transparent member capable of recognizing the liquid level inside, and has an opening (10b) such that one open end (10) thereof can be closed with the belly of the thumb, and A water level measuring pipe (1) having a scale (12) in the longitudinal direction, and an open end (11) of the water level measuring pipe (1) substantially perpendicular to the axis of the water level measuring pipe (1). And a plate-like grounding plate (2) having a surface and having a flooded hole (20) communicating with the inside of the water level measuring pipe (1) at a substantially central portion.

[0010] The surface (24) of the ground plate (2) on the water level measurement tube (1) side may be colored in a color suitable for turbidity recognition. The area may be set smaller than the cross-sectional area of the opening at the other open end (11) of the water level measuring pipe (1). In addition, one or a plurality of water holes (21) may be opened at appropriate positions on the ground plate (2), or a mark installed in a paddy field may be provided on a part of the outer peripheral edge (22) of the ground plate (2). An engagement recess (23) that can engage with the stake (B) may be formed.

[0011] Note that the reference numerals in parentheses described in the above-mentioned claims of the utility model registration and in the section of the means for solving the problems are those with drawing reference numerals for reference to facilitate understanding of the configuration of the invention. Of course, the present invention is not limited to the form on the drawing.

[0012]

[Action]

 With the above configuration, the present invention operates as follows. The paddy field water level measuring instrument according to the present invention sinks into the paddy field from the ground plate side, and then visually recognizes the liquid level of the water held in the water level measuring pipe.

When the ground plate is lowered and submerged in the paddy field, the paddy water enters the water level measuring tube from the inundation hole of the ground plate and closes one open end, thereby retaining the entered paddy water in the tube. Further, when the configuration of claim 3 is added, the holding of the paddy water becomes more reliable.

According to the configuration described in claim 2, the upper surface of the ground plate serves as a comparison target for recognition of turbidity of paddy water. It will be convenient.

[0015]

[Embodiment of the invention]

 Hereinafter, an embodiment of a paddy water level measuring instrument according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing a paddy water level measuring instrument of the present embodiment, and FIG. 2 is a cross-sectional view showing a state where the paddy water level measuring instrument of the present embodiment is submerged in a paddy field. FIG. 3 is a cross-sectional view showing a state of water level measurement by a measurer of the paddy water level measuring instrument of the present embodiment.

As shown in FIG. 1, a paddy water level measuring instrument (hereinafter abbreviated as “measuring instrument”) A of this embodiment is a water level measuring pipe (hereinafter abbreviated as “measuring pipe”) 1 and a ground plate 2. Are main components, and have a configuration in which the measuring tube 1 is vertically fixed to the substantially center of the ground plate 2.

The measuring tube 1 is made of a glass material and is formed in a tubular body having a circular cross section with both ends open. Then, a scale 12 of a predetermined unit is arranged along the longitudinal direction of the outer surface. The measuring tube 1 may be transparent or transparent to the extent that the liquid level in the tube can be recognized, and is not limited to a glass material, and may be formed of a transparent synthetic resin material such as plastic. The cross-sectional shape is not limited to a circular shape, and an appropriate tube shape having a triangular, quadrangular, pentagonal, or other polygonal shape may be selected.

In the present embodiment, a lid 10 a is arranged on one open end 10 of the measuring tube 1. The lid 10a has an opening 10b formed substantially at the center thereof and communicating with the open one end 10 of the measuring tube 1. The opening 10b has such a diameter that it can be closed by a belly part such as the thumb. The lid 10a is formed of a hard rubber material in the present embodiment, but is not limited to this material as long as it has the above-described form. Alternatively, the lid 10a may be omitted, and the opening diameter of the measuring tube 1 may be made small enough to close the open one end 10 of the measuring tube 1.

Next, the grounding plate 2 is formed in a disk-like shape with a synthetic resin material of white, milky white or a color having a brightness and a chroma according to the color, which is easy to see even in water. At substantially the center thereof, there is formed a flooded hole 20 having a smaller cross-sectional area than the cross-sectional area on the inner diameter side of the measurement tube 1 communicating with the other open end 11 of the measurement tube 1. The material of the grounding plate 2 is not limited to the present embodiment, but the upper surface portion 24 needs to be at least a color suitable for turbidity recognition. May be compared to determine the degree of turbidity.

The grounding plate 2 of the present embodiment has four water passage holes 21 formed at predetermined positions, and engagement recesses 23 which engage with the mark piles B shown in FIG. Is formed. The number and shape of the water passage holes 21 are not limited to the present embodiment, because they are formed for the purpose of passing a certain amount of water. The shape of the engaging recess 23 is not limited to this embodiment as long as it can engage with the mark pile B.

By the way, the mark pile B shown in FIG. 2 is arranged in a paddy field to simplify the reproducibility of the measurement position. With this mark pile B, fixed point measurement can be performed almost every measurement.

[0023]

[Operation of this embodiment]

 With the above configuration, the present embodiment operates as follows. First, the measurement place in the paddy field is specified by the mark pile B, the engaging concave portion 23 of the ground plate 2 is engaged with the mark pile B, and the ground plate 2 is submerged in the paddy field. At this time, the paddy water enters the water level measurement pipe 1 from the inundation hole 20 of the ground plate 2 (arrow a), and at the same time passes through the water hole 21 of the ground plate 2 (arrow b). When the ground plate 2 comes into contact with the bottom of the paddy field, the ground plate 2 stabilizes the water level, and the water level in the measuring tube 1 becomes substantially the same as the water level in the paddy field. The engagement with the mark pile B may be performed after the measuring instrument A is sunk to some extent.

Next, while the ground plate 2 is in contact with the bottom of the paddy field, the degree of turbidity of the paddy water is confirmed by the appearance of the color on the upper surface 24 of the ground plate 2. Thereafter, with the opening 10b of the lid 10a closed with a thumb or the like, the whole is pulled up from the paddy field. At this time, the water level inside the measuring tube 1 is maintained. In the water hole 21, the paddy water passes in a direction opposite to the direction of sinking. Then, the raised measuring instrument A is brought to the height of the line of sight of the measurer, and the water level value is confirmed using the scale 12 of the measuring tube 1 as a mark. Therefore, it is not necessary to maintain an unreasonable posture to measure the water level. After the measurement, the water in the measurement tube 1 may be released by closing the opening 10b.

It is necessary to appropriately reduce the diameter of.

【effect】

 Since the present invention is configured as described above, the operability, safety and accuracy of the measurement are improved in a paddy field of soft soil with a simple structure, and the degree of turbidity of the paddy water is improved. Judgments can also be made accurately.

According to the present invention, since the structure is simple as described above, the manufacturing cost can be kept low. Particularly, even small farmers can effectively manage, investigate, or use herbicides for paddy water with a low burden. It is possible to enjoy remarkable effects such as qualification criteria for the time and amount of spraying.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a paddy field water level measuring instrument according to an embodiment.

FIG. 2 is a cross-sectional view illustrating a state where the paddy water level measuring instrument according to the embodiment is submerged in a paddy field.

FIG. 3 is a cross-sectional view showing a state of water level measurement of the paddy water level measuring instrument in the embodiment.

[Explanation of symbols]

 Reference Signs List A measuring instrument B mark pile 1 measuring tube 10 open one end 10a lid 10b open hole 11 open other end 12 scale 2 ground plate 20 flood hole 21 water passage hole 22 outer peripheral edge 23 engaging recess 24 upper surface

Claims (5)

[Utility model registration claims] 1. An opening (10b) which is formed of a transparent member capable of recognizing the liquid level inside and is open at both ends, and has an opening (10b) at one end side (10b) of which the obstruction of the thumb can be closed. A water level measuring pipe (1) having a scale (12) in the longitudinal direction of the side surface; and an open end (11) of the water level measuring pipe (1), an axis of the water level measuring pipe (1). And a plate-shaped ground plate (2) having a substantially vertical surface and having a flood hole (20) communicating with the inside of the water level measuring pipe (1) at a substantially central portion. Paddy water level measuring instrument. 2. A paddy water level measuring instrument according to claim 1, wherein the surface (24) of the ground plate (2) on the water level measuring tube (1) side is colored in a color suitable for turbidity recognition. 3. A cross-sectional area of the water inflow hole (20) of the ground plate (2) is set smaller than a cross-sectional area of the opening at the other open end (11) of the water level measuring pipe (1). Item 6. The paddy water level measuring instrument according to item 1 or 2. 4. The paddy water level measuring instrument according to claim 1, wherein one or a plurality of water passage holes (21) are opened at appropriate positions of the ground plate (2). 5. A part of the outer peripheral edge (22) of the ground plate (2),
An engagement recess (2) that can engage with the mark pile (B) installed in the paddy field
The paddy water level measuring instrument according to claim 1, wherein 3) is formed.