JP3389156B2 - Water level gauge - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water level gauge, and more particularly to a simplified water level gauge having a water storage part into which water flows.

[0002]

2. Description of the Related Art Conventionally, there are various water level gauges for measuring the maximum water level of sewers, rivers, drainage channels for irrigation and the like.
When roughly classified, it is divided into a water level gauge that detects a water level by an electric signal and a water level gauge that detects a water level without using an electric signal. Although the water level meter using an electric signal can measure the water level up to the millimeter unit, it requires a high cost for equipment and installation, and the location where it can be installed is limited due to the convenience of wiring. As a water level meter having a water storage part, for example, a tubular body having a plurality of partition walls like a bamboo cylinder, the water storage part is between the partition walls, corresponding to each water storage part, on the side surface of the tubular body, Some have a water inlet. When measuring the water level, a water level gauge should be installed in advance at the measurement location and then pulled up to obtain the highest inlet level of the water reservoir that has the highest water level during the measurement period. . Such a water level gauge is generally called a simple water level gauge, is inexpensive, and can be installed anywhere. However, in order to secure the size of the water inlet and the sufficient depth of the reservoir, the water inlet can be installed only in units of about 10 cm, and as a result, the water level cannot be measured accurately.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a water level meter which can measure the water level with high accuracy.

[0004]

The present inventors have completed the following inventions in order to solve the above problems. That is, according to the present invention, the following means are provided. (1) A water level meter, comprising two or more water level detection units each having an inflow port and a water storage unit, and the water level detection units are arranged at different heights without overlapping in the height direction. A water level gauge equipped with water drop removing means above the section. (2) The water level gauge according to (1), wherein the water drop removing means is continuously formed above the two or more water level detecting units arranged. (3) The water level detector according to (1) or (2), wherein the water level detection unit has a water storage unit obliquely below the inflow port. (4) The water level detector according to any one of (1) to (3), wherein the water level detection unit is arranged in a staircase pattern or a spiral pattern. (5) The water level meter according to any one of (1) to (4), wherein the water level detection unit is attached to a surface of a rod-shaped body or a cylindrical body having a peripheral surface having a substantially circular cross section. (6) A water level meter, which is provided with two or more water level detection units each having an inflow port and a water storage unit, and the water level detection units are arranged at different heights so that at least some of them overlap in the height direction. , The deepest part of the reservoir of at least one water level detector is
A water level gauge that is formed below the upper end of the inlet of the water level detection unit immediately below. (7) The water level gauge according to (6), wherein the water level detection unit has an inflow port that opens laterally, and a water storage unit that is oriented obliquely downward with respect to the inflow port.

According to the inventions (1) to (5), since the water drop removing means is provided, it is possible to prevent water drops generated by dew condensation from entering through the inflow port and accumulating in the water reservoir.

According to the inventions (6) and (7), since the deepest part of the water storage section is located at a height position lower than the state of the inlet of the water level detection section immediately below, the water detection section immediately below the water level detection section. The depth of the reservoir is secured regardless of the height of the inlet. Therefore, it is possible to arrange the water level detection units at a dense interval in the height direction while ensuring the depth of the water storage unit.

In this water level meter, the water inlet of the water level detector may be opened laterally. The opening of the inflow port to the side is preferably a state in which the inflow port is formed to have an opening width in the height direction. More preferably, the opening has a vertical portion formed in a vertical shape.

[0008]

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a water level gauge of the present invention will be described in detail below with reference to the drawings. (First Embodiment) A first water level gauge of the present invention is provided with two or more water level detection units each having an inlet and a water storage unit, and the respective water level detection units have different heights without overlapping in the height direction. Are arranged in. FIG. 1 shows a typical example of the water level gauge according to this embodiment. The water level gauge 2 in this typical example is formed by mounting a plurality of water level detection units 6 on the surface of a cylindrical holder 4.

The water level detecting section includes an inflow port and a water storage section. The form of the water level detector is not limited as long as it has an inflow port and a water storage part. Typically, it is in the shape of a container, and may be, for example, a tubular body or a flexible tubular body,
It may also be a bag. Furthermore, the inflow port and the water storage part do not have to be combined and integrated, and the inflow port and the water storage part may be connected by a tubular body, and the water storage part may be separated from the inflow port.

The inflow port is an opening through which water can flow, and may be connected to the water storage part so that water can be transferred. The inflow port is preferably opened above or to the side of the water level detection unit. In the water level gauge of this embodiment, the inlet is more preferably opened upward. More preferably,
It opens directly above (vertically above). In any case, the height of the lowermost edge of the inlet is the detected water level. When the openings are opened upward, the water level detection units can be easily arranged at close intervals. In particular, it is preferable that the opening is right above. The shape of the opening is not particularly limited, but it is preferable that the size is such that the inflow of water is not hindered by the surface tension. Typically, the inner diameter of the inlet is 8 mm or more and 15 m
It is preferably m or less.

The water storage portion is a portion for holding water from the inflow port and confirming inflow of water from the inflow port. The water storage part has a deepest part at a position lower than the inflow port so that water can be stored. The water storage part may be vertically below the inflow port or obliquely below. Preferably, the water storage portion is a portion below the inflow port of one container-shaped body having the inflow port. More preferably, the water storage part is formed vertically below the inflow port. Further, the water storage part may be a container-like body that is connected to the inflow port by a tubular body. At least a part of the water storage section is preferably transparent or translucent.

In the water level gauge 2, the water level detector 6 is
As shown in FIG. 2, the container is formed in a straight tubular container having an open top, the upper opening serves as an inflow port 8, and the lower portion of the upper opening serves as a water storage section 10.

In the first water level gauge, two or more water level detecting portions are arranged at different heights without overlapping in the height direction (vertical direction). That is, the respective water level detection units are arranged at different heights by shifting in the horizontal direction. For this reason, in one water level detection portion, a space below it can be easily ensured, and the necessary depth of the water storage portion can be easily ensured.

The water level detectors are preferably arranged at constant height intervals. More preferably, they are arranged at regular horizontal intervals. That is, they are arranged stepwise. Most preferably, they are arranged to form a helix. When arranged in a spiral shape, it is possible to provide a water level gauge with a wide water level detection range while making the water level gauge compact.

In some cases, the water level detector can be itself configured as a water level meter by continuously connecting and arranging in a stepwise or spiral shape. In addition, a part of the outer surface of the holding body having a predetermined shape may be molded into the shape of the water level detecting portion, or may be formed by various processes to form the water level meter. Further, the water level gauge can be configured by attaching the water level detecting section to the surface of the holding body to which the water level detecting section can be attached. When using the holder, it is preferable that the holder is a plate having a shape having a peripheral surface of various cross sections or a spiral plate. This is because it is easy to form the water level detection portion in a stepped shape or a spiral shape. In particular, as the holding body having a peripheral surface, a rod-shaped body or a cylindrical body having a peripheral surface having a substantially circular cross section is preferable.

In particular, when the water storage part of the water level detecting part is formed not in the vertical direction but in a diagonally downward direction, it is preferable to arrange the bottom part of the water storage part in the central direction of the spiral. With this configuration, the water level detection units can be arranged at close intervals regardless of the depth of the water storage unit. When the water level detection unit is provided on the outer peripheral surface of the holder in this manner, it is preferable that the water level detection unit is provided so that the periphery of the inflow port projects from the outer peripheral surface of the holder. This is because the recess serving as the water drop removing means is formed above the inflow port.

The arrangement of the water level detector is not limited to this embodiment. For example, the water level detector may be provided on the outer peripheral surface of the holder so as to draw a double spiral. In particular, by changing the height of the inflow port of the water level detecting section between the first spiral and the second spiral, it is possible to make a highly accurate water level gauge relatively small. Further, the water level detection unit may be provided so as to draw a spiral on the inner peripheral surface and the outer peripheral surface of the holder, respectively. When the water level detection unit is provided on the inner peripheral surface, it is preferable that the holding body is made of a translucent material.

In the water level gauge 2, the water level detector 6 is
The outer peripheral surface of the cylindrical holder 4 is used to arrange the holders 4 in a spiral shape. The height-wise interval is about 1 cm, and the horizontal arrangement interval is about 1 cm.

Above the water level detector of the water level gauge of this embodiment,
It is preferable to provide a water drop removing means. The water droplet removing means prevents water droplets generated on the surface of the water level detecting portion or the holder due to dew condensation from entering the inflow port and accumulating in the water storing portion. Particularly, it is preferable when the inflow port is opened upward. Moreover, it is preferable when the water level detection unit is provided on the surface of the holder. The water droplet removing means may be formed so as to prevent water from entering the inflow port from above. Typically, it is protruding or concave with respect to the inlet. In the case of making it concave, for example, a slit may be formed in the holding body above the inflow port, or a cut may be made in the holding body, and the piece formed by this cut may be bent inward.

Further, the water drop removing means is preferably formed continuously above the two or more water level detecting portions arranged. By forming the water drops in a continuous manner, the water drop removing means acts as a gutter, and the water drops can be made to flow down along the water drop removing means. In the water level meter 2, a continuous convex water drop removing means 9 is provided above the water level detection unit 6 so that the water drops can flow down below the water level meter 2.

The water level gauge is arranged vertically when measuring the water level. For placement it is preferable to provide suspension means. As a suspending means, a rope 12 is attached to the upper part of the holder 4 of the water level gauge 2. Further, for the arrangement, it is preferable to provide a protector capable of protecting the water level gauge from an external force in order to prevent the water level gauge from tilting or being covered with waves. The protector preferably has a form in which a water gauge can be inserted or covered. The protective body is opened at least at a part of the bottom, the top, and the side so that water can be introduced into the water level gauge. Preferably, it is a cylindrical body that penetrates vertically. It is also preferable to provide a plurality of openings on the side portion. When measuring at a place where waves are generated or there is a flow, it is preferable to provide water so that the water can be introduced from the bottom so that the water level can be measured without being affected by the waves and the flow. Further, it is preferable that the height is longer than the height of the entire water gauge.
Further, it is preferable that the protector is provided with a supporting means for stably supporting the water level gauge. The supporting means is not particularly limited. The protector is preferably fixed and installed in advance at the water level measurement location.

FIG. 3 shows a schematic diagram in which the water level gauge 2 is installed in the sewer pipe together with the protector 14. Further, a state in which the water level gauge 2 is arranged in the protective body 14 is enlarged and shown in FIG. For this water level gauge 2, a cylindrical protective body 14 was used. Inside the vicinity of the lower end of the protective body 14, there is provided a supporting means 16 which is a belt-shaped body which is directed upward and is bent in a convex shape. By fitting the convex portion of the support means 16 inside the water level gauge 2, the water level gauge can be stably supported in the protective body 14. Further, according to the support means 16, since it is a belt-like body, it does not prevent water from entering from below.

It is preferable to provide a guide member protruding in the outer peripheral direction of the water level gauge. The guide member is preferable for easily raising and lowering the water level gauge. For example, the water level gauge can be raised and lowered without hitting the side wall of the measurement site or the inner wall of the protector. In addition, it is possible to prevent damage to the outer circumference of the water level gauge even during measurement. The guide member may have any shape as long as it projects outside the maximum diameter of the water level gauge, and its shape is not limited, but it is preferable that the guide member is provided symmetrically. Further, it is also preferable to provide a tapered shape or a ring shape in which the protrusion is attenuated downward. In addition, the formation position of the guide member is not particularly limited, such as a top portion, an upper portion, a central portion, a lower portion, and a bottom portion. It is preferable to provide the guide member at the upper portion because it is possible to prevent the water level gauge from tilting or swinging inside the protective body during installation. Further, the water level gauge can be supported by providing the guide member and the support means of the protector in a form of engaging with each other. In the present water level gauge 2, four guide members 18 whose downward projection amount is reduced are formed symmetrically around the upper portion of the water level gauge 2.

Next, a method of measuring the water level using the water level gauge of the present embodiment will be described with reference to an example of the water level gauge 2. The protective body 14 is fixed in advance at a predetermined height of the measurement location. The suspending means 12 is provided in the protective body 14.
Hold down the water level gauge 2 gently. Water level gauge 2
The lower end of reaches the support means 16 of the protective body 14,
When it is confirmed that the water level gauge 2 is supported by the supporting means 16, the suspending means 12 is fixed in a proper place and the installation is completed.
It should be noted that the water level (water depth) that can be detected by each water level detection unit 6 is associated in advance with the installation location. For example, a mark such as a number is provided on the water level detection unit 6, and the mark and the detected water level are associated with each other.

When detecting the water level, the hanging means 12 is used to gently pull up the water level gauge 2. Of the water level detectors 6 storing water, the highest water level detector 6
To record. The depth of water corresponding to the height (detected water level) of the inflow port 8 corresponding to the water level detection unit 6 becomes the highest water level during the installation period. The water level gauge 2 can measure not only the maximum water level during a predetermined period, but also the water level at the time of measurement by pulling down and pulling up to the measurement place at each measurement time.

(Second Embodiment) The second water level gauge is provided with two or more water level detecting portions each having an inflow port and a water storage portion, and each water level detecting portion is arranged so that at least a part thereof overlaps in the height direction. It is arranged at different heights, and the deepest part of the water storage section of at least one water level detection section is formed below the upper end of the inflow port of the water level detection section immediately below. FIG. 6 is a perspective view showing a water level gauge according to the second embodiment. The water level gauge 21 is formed in a box-shaped body 22 that is long in the vertical direction, and has a plurality of water level detection units 23. Further, similarly to the first embodiment, the wire 2 is used as a suspending means on the upper surface of the box-shaped body 22.
4 is attached, and a guide member 25 is provided on the lower surface.

The box-shaped body 22 is made of a transparent material. The box-shaped body 22 is provided with two rows in the horizontal direction and a plurality of water level detection sections 23 in the vertical direction in each row. The water level detection units 23 adjacent to each other in the horizontal direction correspond to different detected water levels. In addition, the water level detection unit 23 of each row
Are provided at equal intervals in the vertical direction. As a result, all the water level detecting units 23 are adapted to different detected water levels.

Each water level detector 23 has an opening 2 on one side.
The inside of the box-shaped body 22 having 2a is defined by partition walls 26 and 27. Inlet 2 of water level detector 23
8 is formed as a part of the opening 22a. The inflow port 28 is opened laterally along the vertical direction.
The water storage portion 30 is formed obliquely downward from the inflow port 28, and the partition walls 26, 27 and the opening 2 of the box-shaped body 22 are formed.
It is divided by the side surface on the opposite side of 2a so that water can be stored. The deepest part (deepest part) 32 of the water storage part 30 is formed at a position lower than the upper end of the inflow port 28 of the water level detection part 23 immediately below. In particular, in the present embodiment, as shown in FIG. 7, the deepest portion 32 that reaches the upper end of the opening of the water level detection unit 23 that is four lower layers.
Is equipped with.

In the present water level gauge 21, the water level detection unit 23 of each row
Are vertically arranged at intervals of 2 cm.
Further, the water level detection units 23 adjacent to each other in the horizontal direction are provided at heights different by 1 cm. As a result, each water level detection unit 23 is formed at 1 cm intervals.

Similar to the first embodiment, the cylindrical protective member 3 is provided.
6 is provided. The protector 36 has the same form as that of the first embodiment. FIG. 8 is a side view of the protector 36. The protective body 36 is substantially similar to the box-shaped body 22 and has a size capable of inserting the water level gauge 21. In addition, it is preferable to provide a support means 38 capable of holding the water level gauge 21 at any part inside the protective body 36. In the present water level gauge 21, the support means 38 includes the guide member 25 at the lower end of the water level gauge 21.
The plate-like body was provided with an opening 40 through which parts can be fitted together and with a plurality of holes for water circulation.

According to the water level gauge of the present embodiment, at least a part of the water level detecting portions are arranged vertically at different heights, so that the water level can be detected accurately in a small space. In particular, according to the water level gauge 21, it is
The water level detection unit 23 in the row is provided, and the water level can be accurately detected.

Also in this embodiment, as in the first embodiment, the water level detecting portion can be provided in a straight tube shape, or water drop removing means of any shape can be provided.

For example, as shown in FIG. 8, a straight tubular water level detector 53 similar to that of the first embodiment can be provided obliquely to the vertical direction. FIG. 8 is an enlarged cross-sectional view of a portion where the water level detection unit 53 is provided, and a plurality of water level detection units 53 are obliquely inserted into a cylindrical holding body 54 and arranged vertically. In this example, the water storage unit 60 of the water level detection unit 53 is arranged inside the holding body 54, and the inflow port 58 is arranged slightly protruding from the outer peripheral surface of the holding body 54. Therefore, the outer peripheral portion of the water level detecting portion 53 protruding from the outer peripheral surface of the holder 54 serves as a water drop removing means, and the water droplets flowing on the outer peripheral surface of the holder 54 are water level detecting portion 53.
Can be prevented from flowing down.

[0035]

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a water level meter capable of measuring the water level with high accuracy.

[Brief description of drawings]

FIG. 1 is a side view showing a main body of a water level gauge according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a water storage pipe according to the first embodiment.

FIG. 3 is a schematic diagram when the outer cylinder according to the first embodiment is installed in sewer.

FIG. 4 is a side sectional view when the main body is inserted into the outer cylinder according to the first embodiment.

FIG. 5 is an enlarged cross-sectional view showing another installation method of the water storage pipe of the first embodiment.

FIG. 6 is a perspective view showing a main body of a water level gauge according to a second embodiment of the present invention.

FIG. 7 is a side sectional view showing a reservoir body portion of a main body of a water level gauge according to a second embodiment.

FIG. 8 is a side view showing an outer cylinder of the water level gauge according to the second embodiment.

[Explanation of symbols]

2.21 Water gauge 4 holder 6,23 Water level detector 8, 28 Inlet 9 Water drop removing means 10, 30 Water storage 12 rope 14,36 protector 16, 38 Support means 18, 25 Guide member 22 Box 22a opening 24 wires 26, 27 partition 32 deepest part 40 opening

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01F 23/00-25/00

Claims (7)

(57) [Claims] 1. A water level meter, comprising two or more water level detection units each having an inlet and a water storage unit, wherein each water level detection unit is arranged at different heights without overlapping in the height direction, A water level meter equipped with a water drop removing means above the water level detection unit. 2. The water drop removing means is continuously formed above two or more water level detecting units arranged.
Water level gauge described. 3. The water level gauge according to claim 1, wherein the water level detecting section has a water storage section obliquely below the inflow port. 4. The water level gauge according to claim 1, wherein the water level detectors are arranged in a staircase pattern or a spiral pattern. 5. The water level gauge according to claim 1, wherein the water level detection unit is attached to a surface of a rod-shaped or cylindrical holder having a peripheral surface having a substantially circular cross section. 6. A water level meter, comprising two or more water level detection parts each having an inlet and a water storage part, each water level detection part being arranged at different heights so that at least a part thereof overlaps in the height direction. A water level gauge, wherein the deepest part of the water storage section of at least one water level detection section is formed below the upper end of the inlet of the water level detection section immediately below. 7. The water level gauge according to claim 6, wherein the water level detection unit has an inflow port that opens laterally, and a water storage unit that is oriented obliquely downward with respect to the inflow port.