JPH09257706A - Fluoroscopic meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent that a marking plate is discharged together with water to be measured to be lost when measured water to be measured is discharged by fitting a discharge preventing ring in the inner periphery side of the upper part of a fluoroscopic meter main body in a detachable manner. SOLUTION: A discharge preventing ring R1 is formed by cutting a pipe made of polyvinyl chloride having an outer diameter slightly larger than the inner diameter of a fluoroscopic meter main body 10 in a predetermined width to from a ring element and cutting a part of the ring element to provide a notch. This ring R1 is fitted in the inner peripheral side of the upper end part of the fluoroscopic meter main body 10 in a detachable manner. When water to be measured is discharged after the completion of measurement, a marking plate 20 ready to be discharged together with this water is hooked with the discharge preventing ring R1 fitted in the fluoroscopic meter main body 10. Since the discharge preventing ring R1 has a thin-walled ring shape, it does not abstruct the discharge of water to be measured. Further, the fluoroscopic meter main body 10 or the marking plate 20 is cleaned, the discharge preventing ring R1 is detached to perform cleaning without hindrance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention discharges the water to be measured filled in the main body of the fluorometer and gradually lowers the water level so that the identification mark of a marker plate installed on the bottom of the main body of the fluorometer is used. The present invention relates to a fluorometer having a configuration for measuring the transparency by the water level that can be identified.

[0002]

2. Description of the Related Art First, the construction of a fluorometer and its usage will be described with reference to the drawings according to the present invention. 1 to 4, a fluorometer A is a fluorometer main body 10 formed of a cylindrical transparent body with a bottom such as glass,
It is composed of a signboard 20 installed on the bottom. A drain pipe 1 is integrally provided in the lower end of the fluoroscopy main body 10 in the radial direction of the main body 10, a drain tube 2 is connected to the drain pipe 1, and a clip 3 closes the middle of the tube 2. Has been done. Further, the fluoroscope main body 10 is provided with a scale 4 corresponding to the water level of the water to be measured contained therein. The scale 4 is provided on a portion of the outer peripheral surface of the fluoroscopy main body 10 substantially opposite to the drain pipe 1.
On the other hand, the marker plate 20 is installed at the bottom of the fluorometer body 10, and has an inner diameter of a disc shape slightly smaller than the inner diameter of the fluorometer body 10. An identification mark 21 having double lines orthogonal to each other is attached.

The fluoroscope A described above is used by being set in a case C as shown in FIG. This case C
Is a structure in which upper and lower ends of a pair of side plates 5 which are spaced apart from each other are integrally connected by an upper plate 6 and a lower plate 7, respectively, and these integrated parts are integrally attached to a bottom plate 8. Is. The upper plate 6 and the lower plate 7 constituting the case C are provided with holes 6a and 7a corresponding to the fluoroscopy main body 10, and the fluoroscopy main body 10 is inserted into each of the holes 6a and 7a. Set. In the set state of the fluorometer A, the scale 4 provided on the fluorometer main body 10 faces the space between the pair of side plates 5 forming the case C so as not to interfere with the pair of side plates 5. Has become.

Then, the water W to be measured for measuring the transparency is filled in the main body 10 of the fluorometer, and the main body 10 of the fluorometer is measured.
When the clip 3 closing the middle of the drainage tube 2 is loosened and the water W to be measured is discharged while looking into the marker plate 20 on the bottom from above, the water level is gradually lowered. In this way, the discharge of the measured water W is stopped at the time when the double line of the identification mark 21 provided on the sign plate 20 can be clearly discriminated due to the lowered water level of the measured water W. . The water level of the measured water W at this time is the transparency.

After the transparency of the water W to be measured is measured as described above, it is discharged from the main body 10 of the fluorometer, but it takes time to discharge it through the drainage tube 2. As shown in 13, the fluoroscopy main body 1
The fluorometer main body 10 is tilted so that the opening 10a at the upper end of 0 is lower than the bottom thereof, and the measured water W to be measured is discharged from the opening 10a. However, it often happens that the marker plate 20 installed at the bottom of the fluoroscope main body 10 is discharged together with the measured water W and is lost. Therefore, a spare marker plate 20 should be prepared. I had to leave.

[0006]

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a fluorometer with a marker plate installed at the bottom of the fluorometer body when discharging measured water to be measured. The main issue is to prevent it from being lost together with the water to be measured.

[0007]

The means adopted by the present invention to solve this problem are a fluorometer main body made of a transparent body having a cylindrical shape with a bottom, and installed on the bottom of the fluorometer main body. In a fluorometer composed of a disc-shaped marker plate, a discharge prevention ring for preventing the marker plate from being discharged together with the water to be measured is provided in the upper end portion of the fluorometer main body. It means that it was detachably attached to the peripheral side.

For this reason, after the measurement is completed, when the water at the upper end of the fluorometer main body is made lower than the bottom and the water to be measured is discharged, the marker plate is the inner circumference of the upper end of the fluorometer main body. Because it is caught in the discharge prevention ring that is fitted to the side,
It will not be discharged together with the measured water. Further, by removing the discharge prevention ring, the fluoroscopy main body and the sign plate can be cleaned without any trouble.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail by way of examples. FIG. 1 is a perspective view of a measuring state in which the fluorometer A according to the present invention is set in a case C, and FIG.
Is a fluorometer main body 10 and a marker plate 2 which constitute the fluorometer A.
0 is a perspective view of the discharge prevention ring R ₁ , FIG. 3 is a plan view of the fluorometer A, FIG. 4 is a front view in which a part of the fluorometer A is broken, and FIG. FIG. 7 is a perspective view for explaining the molding of the drainage prevention ring R ₁ , and FIG. 6 is a cross-sectional view showing a state in which the marker plate 20 is prevented from falling when the water to be measured W is drained. As shown in FIG. 5, the discharge prevention ring R ₁ is formed by cutting a vinyl chloride pipe 31 having an outer diameter slightly larger than the inner diameter of the fluorometer body 10 into a predetermined width to form a ring body 32. The ring body 32 is formed by cutting a part of the ring body 32 in the circumferential direction to provide a notch 32a. The discharge prevention ring R ₁ thus formed is used by fitting it into a portion of the inner peripheral surface of the upper end portion of the fluoroscopy main body 10 slightly lower than the uppermost end. The discharge prevention ring R ₁ is formed as described above and slightly compresses in the radial direction.
When the compressive force is released after fitting into the inner peripheral surface of the upper end of the, the restoring force causes the discharge prevention ring R _{1 to} be stably attached to the above portion of the fluoroscopy main body 10. Since the discharge prevention ring R ₁ can be compressed in the radial direction, it can be easily removed.

After the measurement, the water to be measured W
As shown in FIG. 6, the indicator plate 20, which is about to be discharged together with the water W, is the discharge prevention ring R ₁ fitted in the above portion of the fluoroscopy main body 10 as shown in FIG.
Caught on Further, since the discharge prevention ring R ₁ has a thin ring shape, it does not hinder the discharge of the measured water W. Further, the fluoroscopy main body 10 or the marking plate 20
The cleaning is performed by removing the discharge prevention ring R ₁ fitted on the inner peripheral side of the upper end of the fluoroscopy main body 10.

A discharge prevention ring R shown in FIGS. 7 and 8.
Reference numeral ₂ is an improvement of the ring R _{1 in} which the inner peripheral side of the cross section is tapered so that the measured water W can be easily discharged.

Further, the drainage prevention ring R ₃ shown in FIGS. 9 and 10 is a drainage portion 33 formed by cutting a part of the ring R _{1 on} the inner peripheral side into a thin wall shape. When the water W to be measured is discharged in the fluorometer main body 10 so that the drainage part 33 is located at the lowest position along the circumferential direction, the water W to be measured is easily discharged.

Further, the discharge prevention ring R ₄ shown in FIGS. 11 and 12 uses a lid of a camera film container, and has a structure in which only the peripheral portion of the lid is left and other portions are cut off. Yes, it is characterized by using waste products.

The above-mentioned discharge prevention rings R _{1 to} R
₄ is just an example, and it has any structure as long as it can be removably fitted to the inner peripheral side of the upper end of the fluorometer main body and the sign plate can be hooked when discharging the measured water. Good.

[0015]

EFFECT OF THE INVENTION Since the fluorometer according to the present invention has the above-mentioned structure, when the water to be measured is discharged by lowering the opening of the upper end of the fluorometer main body after the measurement is finished. Since the marker plate is caught by the drainage prevention ring fitted on the inner peripheral side of the upper end of the fluorometer body, it cannot be drained together with the measured water. In addition, if the discharge prevention ring is removed, the fluoroscopy body and the sign plate can be cleaned without trouble.

[Brief description of drawings]

FIG. 1 is a perspective view of a measuring state in which a fluorometer A according to the present invention is set in a case C.

FIG. 2 is a perspective view of a fluoroscopy main body 10, a marker plate 20, and a discharge prevention ring R ₁ that constitute the fluoroscopy A.

3 is a plan view of a fluorometer A. FIG.

FIG. 4 is a front view in which a part of a fluorometer A is cut away.

FIG. 5 is a perspective view for explaining the molding of the discharge prevention ring R ₁ .

FIG. 6 is a cross-sectional view showing a state in which the sign plate 20 is caught by the discharge prevention ring R ₁ when the water to be measured W is discharged, and the drop is prevented.

FIG. 7 is a perspective view of a discharge prevention ring R ₂ .

FIG. 8 is a cross-sectional view showing a state in which the marker plate 20 is prevented from falling by the discharge prevention ring R ₂ .

FIG. 9 is a perspective view of a discharge prevention ring R ₃ .

FIG. 10 is a cross-sectional view showing a state in which the marker plate 20 is prevented from falling by the discharge prevention ring R ₃ .

FIG. 11 is a perspective view of a discharge prevention ring R ₄ .

FIG. 12 is a cross-sectional view showing a state in which the marker plate 20 is prevented from falling by the discharge prevention ring R ₄ .

FIG. 13 is a cross-sectional view showing that the marker plate 20 is discharged together with the measured water W in the conventional fluorometer.

[Explanation of symbols]

A: Fluorometer R _{1 to} R ₄ : Discharge prevention ring W: Water to be measured 1: Drain tube 2: Tube 3: Clip 4: Scale 10: Fluorometer main body 20: Sign plate 21: Identification mark

Claims (1)

[Claims] 1. A fluorometer main body made of a transparent body having a cylindrical shape with a bottom, and a disc-shaped marker plate installed at the bottom of the fluorometer main body, and at the lower end of the fluorometer main body. A drainage tube is connected to the drainage tube provided, and the clip blocking the middle of the drainage tube is loosened to gradually discharge the measured water filled in the fluorometer body to set the water level of the measured water. By lowering the identification mark attached to the sign plate, the fluorometer having a configuration for measuring the water level at which the water to be measured becomes identifiable, and the water to be measured is measured after the measurement is completed. When discharging from the opening at the upper end of the main body, a discharge prevention ring for preventing the indicator plate from being discharged together with the measured water is provided on the inner peripheral side of the upper end portion of the fluorometer main body. A fluorometer characterized by being removable and fitted.