KR102610623B1 - Measuring instrument for water quality - Google Patents

Abstract

The present invention not only makes it possible to mechanically measure the water quality of various test items using various types of sensors, but also makes it possible to easily measure water quality using a water quality testing strap, making the water quality measurement process simple. However, it is about a groundwater quality measuring device that allows for more objective water quality measurement tests.

Description

Groundwater water quality measuring instrument {Measuring instrument for water quality}

The present invention relates to a groundwater quality measuring device, and more specifically, to a groundwater quality measuring device capable of measuring various water quality factors such as pH, electrical conductivity, and temperature of a sample.

In modern society, water pollution caused by urban sewage and industrial wastewater not only destroys the ecosystem, but also causes depletion of water resources needed for industrial and agricultural use and drinking water, emerging as a serious social problem. For example, groundwater is still maintained in a clean state, but depletion and contamination are accelerating due to indiscriminate development.

Recently, as awareness of the importance of management and use of water resources has gradually increased, various management systems have been developed and applied to prevent pollution and efficiently use water resources. These water resources are used not only in industrial sites but also as drinking water and household use at home. It is managed so that it can be used for various purposes.

The most basic management method for water quality is to conduct regular water quality tests. Typically, portable water quality measurement devices that can be easily carried and used by groundwater management workers are widely available, and these portable water quality measurement devices are used depending on the purpose. Characteristics such as salinity, acidity (pH), electrical conductivity (EC), and TDS (Total Dissolved Solids) can be measured.

Most water quality measurement devices measure water quality by using sensors that can measure each characteristic item. The possibility of error in the results due to erratic operation of the sensor could not be ruled out, and therefore, separate water quality test results using a water quality measurement strap are required, separately from measurements using a water quality measurement device.

However, most of the conventional water quality measuring devices were shaped like an elongated pen so that they could be immersed inside the sample, so it was cumbersome to use the water quality testing strap at the same time as the water quality measuring device, so the water quality measuring device was used on the sample. Since re-measurement had to be done immediately using a water quality measurement strap, a certain period of time occurred and there was a problem of contamination of the sample.

Public patent 10-2017-0114137

The present invention was created to solve the above-mentioned problems in the prior art, and not only can the water quality of various test items be measured mechanically using various types of sensors, but at the same time, it can be done using a water quality testing strap. The purpose is to provide a groundwater water quality measuring device that can easily perform water quality measurement, making the water quality measurement process simple and deriving more objective water quality measurement tests.

The present invention is a means for achieving the above object, comprising: a housing in the form of a box to accommodate a sample inside, an open top, and a display formed on the outer surface; A mounting portion detachably coupled to the interior of the housing and formed in the form of a mesh enclosure; a measuring unit coupled to the holding unit to measure the water quality of the sample accommodated in the housing to generate water quality information; a control unit that processes the water quality information generated by the measurement unit into measured values and controls the data to be output on a display; and a support portion slidably mounted on the mounting portion while supporting the water quality testing strap.

In addition, the measurement unit is characterized in that it includes one or more of a pH measurement sensor, a dissolved oxygen measurement sensor, a conductivity measurement sensor, and a temperature measurement sensor.

In addition, the holding part includes a cylindrical member made of mesh material in the form of a cylindrical enclosure; a circular rail member formed in a circular shape along the upper circumference of the cylindrical member and guiding the support portion in a circumferential direction; and a vertical rail member that extends downward from the circular rail member along the inner surface of the cylindrical member and guides the support member in an upward and downward direction.

In addition, a horizontal plate is vertically bent and extended outward at the top of the circular rail member, and a vertical plate is vertically bent and extended downward around the circumference of the horizontal plate, so that the circular rail member, the horizontal plate, and the vertical plate are interconnected. Became ' It is configured to be seated around the top of the housing by forming a 'shape structure, and a color table is formed along the circumferential direction on the upper surface of the horizontal plate, and the support portion is a first guide connected to the circular rail member and the vertical rail member. A support block on which projections are formed; A support plate rotatably coupled to the upper part of the support block; A protective net having a mesh structure that is fixedly coupled to the upper part of the support block and faces the support plate to secure a water quality testing strap; A vortex fan coupled to the outside of the support block and forming a vortex in the sample accommodated in the housing; and an absorbent member that is slidably coupled along the longitudinal direction of the support plate and absorbs moisture around the support plate, wherein a guide rail is recessed along the longitudinal direction on a side of the support plate, and the absorbent member includes, A moving body made of a tubular shape, coupled to a structure surrounding the outside of the support plate, and having a second guide protrusion connected to the guide rail formed on an inner surface; A first absorber coupled to the inside of the moving body and facing one side of the support plate to absorb moisture from one side of the support plate; a second absorber coupled to the inside of the moving body and facing the other side of the support plate to absorb moisture from the other side of the support plate; and a compression pin that penetrates the mobile body and is selectively pressed and fixed to the support plate, wherein a through hole through which the pressing pin passes is formed in the moving body, and a first support jaw is formed to protrude inside the through hole. , a second support jaw is protrudingly formed on the outer peripheral surface of the compression pin, an elastic spring is installed between the first support jaw and the second support jaw to elastically press the compression pin in the direction of the support plate, and the first guide of the support block When the protrusion rises to the height where it is connected to the circular rail member, the support plate is rotated outward and is seated as a horizontal plate. In this state, the support plate is rotated along the circumferential direction of the circular rail member and the color of the water quality testing strap reacts to the sample. It is characterized by comparing to a color comparison table.

In addition, a first connector electrically connected to the battery is formed on the top of the housing, a second connector connected to the first connector is formed on the bottom of the horizontal plate, and the conductor of the measuring unit is connected to the second connector. It is characterized by being supplied with power from a battery.

The water quality measuring device according to the present invention can not only mechanically measure water quality of various test items using various types of sensors, but also easily perform water quality measurement using a water quality testing strap, thereby improving water quality. While the measurement process is simple, it provides the effect of deriving a more objective water quality measurement test.

1 is a diagram showing the main configuration of the present invention in block form.
Figure 2 is a diagram showing the overall appearance of the groundwater quality meter according to the present invention.
Figure 3 is a diagram showing the exploded configuration of the groundwater quality meter according to the present invention.
Figure 4 is an enlarged view showing the exploded configuration of the support portion.
Figure 5 is a diagram showing the overall cross-sectional configuration of the groundwater quality meter according to the present invention.
Figure 6 is a view showing a state in which the support part is moved upward.
Figure 7 is a view showing a state in which the support plate is rotated outward.
Figure 8 is a diagram showing an example in which the support part moves in the circumferential direction.
FIG. 9 is a diagram showing a cross-sectional configuration based on line AA shown in FIG. 5.
Figure 10 is a diagram showing the operation of the absorbent member.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those with average knowledge in the art. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that identical members in each drawing may be indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that are judged to unnecessarily obscure the gist of the present invention are omitted.

The groundwater quality meter (hereinafter referred to as water quality meter) according to the present invention largely includes a housing 10, a mounting part 20, a measuring part 30, a control part 40, and It may be defined as including a support portion 50.

First, the housing 10 is formed in the form of a box to accommodate a sample inside, the top is open, and a display 11 may be formed on the outer surface.

A handle 12 may be formed on the outside of the housing 10, and the display 11 may be configured to display the measurement value of the specimen measured by the measurement unit 30, which will be described later.

Although not shown, a battery, a control unit 40, etc. may be built into the housing 10 at an appropriate location.

A sample, for example, water, which is a measurement object, may be accommodated inside the housing 10. The mounting part 20, the measuring part 30, the support part 50, etc. may be immersed together into the specimen accommodated inside the housing 10.

Next, the mounting portion 20 is detachably coupled to the inside of the housing 10 and is made of mesh in the form of an enclosure.

The mounting portion 20 may be immersed in a sample accommodated in the housing 10 while supporting the measuring portion 30, which will be described later.

More specifically, the mounting portion 20 is a cylindrical member 21 made of mesh material in the form of a cylindrical enclosure, is formed in a circle along the upper circumference of the cylindrical member 21, and guides the support portion 50 in the circumferential direction. It includes a circular rail member 22 and a vertical rail member 23 that extends downward from the circular rail member 22 along the inner surface of the cylindrical member 21 and guides the support portion 50 in the vertical direction. It can be exemplified as:

The cylindrical member 21 is configured to be offset at a certain distance from the inner surface of the housing 10 toward the inner side and is provided to maintain a certain distance from the inner surface of the housing 10 without directly contacting the inner surface.

Accordingly, when the cylindrical member 21 of the mounting portion 20 is inserted onto the specimen accommodated in the housing 10, particulate foreign substances with relatively large particle size floating in the specimen are separated between the housing 10 and the cylindrical member 21. It can be locked up.

Accordingly, when the water quality testing strap (S) supported on the measuring unit 30 or the support unit 50 is immersed in a sample, particulate foreign substances are directly different from the surfaces of the measuring unit 30 and the water quality testing strap (S). It can be prevented from sticking or sticking, lowering measurement accuracy.

For example, litmus reaction paper may be used as the water quality testing strap (S).

The circular rail member 22 constitutes the top of the mounting portion 20 and can guide the support portion 50 in the circumferential direction, and the vertical rail member 23 extends downward from the circular rail member 22 to form a circular shape. It is connected to the rail member 22 to form one single channel.

That is, the support part 50 may be guided by at least one of the circular rail member 22 and the vertical rail member 23.

At the top of the circular rail member 22, a horizontal plate 24 is vertically bent and extended outward, and a vertical plate 25 is formed to be vertically bent and extended downward around the horizontal plate 24, thereby forming the circular shape. The rail member (22), the horizontal plate (24), and the vertical plate (25) are interconnected to 'It has a ring structure so that it can be seated around the top of the housing (10).

At this time, a first connector 13 electrically connected to the battery is formed at the top of the housing 10, and a second connector 27 connected to the first connector 13 is formed on the bottom of the horizontal plate 24. It is formed, and the conductor of the measuring unit 30 is connected to the second connector 27 to receive power from the battery.

That is, power can be supplied to the measuring unit 30 only when the mounting unit 20 is coupled to the housing 10, and the mounting unit 20 is placed in the housing 10 for sample removal, maintenance, etc. When removed from , it is possible to have a safety structure in which the power supply to the measuring unit 30 is stopped.

A color comparison table 26 may be formed on the upper surface of the horizontal plate 24 along the circumferential direction. The color comparison table 26 is a means for contrasting the color of the water quality testing strap (S) changed through a reagent reaction when the water quality testing strap (S) is in contact with a sample, and the water quality testing strap (S) is colored. The water quality information of the sample can be determined by directly comparing it to the comparison table (26).

Next, the measuring unit 30 is coupled to the mounting unit 20 and measures the water quality of the sample accommodated in the housing 10 to generate water quality information.

The measuring unit 30 may be comprised of a sensor that measures water quality, and may be configured to include, for example, one or more of a pH measurement sensor, a dissolved oxygen measurement sensor, a conductivity measurement sensor, and a temperature measurement sensor.

As needed, chlorine concentration (for purposes such as measuring the concentration of chemicals applied (sprayed) to improve water quality or reduce odor) and nitrogen concentration (ammonia nitrogen (NH4-N) concentration and nitrate nitrogen (NO3-N) concentration. ) It can be equipped with a structure that can measure various water quality factors by further including sensors for measurement.

In particular, nitrogen concentration sensors for measuring ammonia nitrogen (NH4-N) and nitrate nitrogen (NO3-N) concentrations are suitable for measuring water quality in sewage pipe networks, but if necessary, they can also be introduced into automatic measuring devices for water pipe networks for use in water and sewage pipes. Sensors can be configured.

Each sensor may be coupled to the cylindrical member 21 made of mesh material by hooking or the like.

The water quality information measured by the measuring unit 30 can be converted from an analog value to a digital value through a converter unit (not shown) and transmitted to the control unit 40.

Next, the control unit 40 can process the water quality information generated by the measuring unit 30 into a measured value and control it to be output on the display 11.

That is, the control unit 40 analyzes the signal-processed digital value received from the converter unit and controls it to be output as a measured value through the display 11.

For this purpose, the control unit 40 uses a pH measurement sensor, a concentration measurement sensor, a dissolved oxygen (DO) measurement sensor, a conductivity measurement sensor, an automation sensor, a load cell, a pressure sensor, etc. connected to the measurement unit 30. A program that recognizes and calculates and analyzes the information measured from these into voltage, current, pH, concentration, conductivity, weight, pressure, suspended solids concentration, salt concentration, etc. can be stored.

The control unit 40 is a component that controls the overall operation of the water quality meter according to the present invention. For example, the control unit 40 may be implemented in the form of an integrated circuit mounted on a printed circuit board and accommodated inside the housing 10.

The display 11 is connected to the printed circuit board constituting the control unit 40 and visually provides various information measured by the measurement unit 30.

The display 11 is exposed to the outside through a window provided on one side of the housing 10, and all information such as residual power, measurement type unit, temperature, temperature unit, and measurement completion indication can be displayed and provided in a sufficient size. there is.

Next, the support portion 50 is slidably mounted on the mounting portion 20 while supporting the water quality testing strap (S).

That is, the support portion 50 is guided along the circular rail member 22 and the vertical rail member 23 of the mounting portion 20 and moves the water quality testing strap S on the mounting portion 20 in either the circumferential or vertical direction. It can be moved in either direction.

More specifically, the support unit 50 may be illustrated as including a support block 51, a support plate 52, a protection net 53, a vortex fan 54, and an absorption member 100.

First, the support block 51 is formed with a first guide protrusion 51a connected to the circular rail member 22 and the vertical rail member 23, and supports the support plate 52 and the protection net 53 at the top. When the support block 51 is connected to and guided by the circular rail member 22 and the vertical rail member 23, the configuration of the support plate 52, the protective net 53, and the absorption member 100 can be moved in conjunction with them. .

Next, the support plate 52 is a plate-shaped member rotatably coupled to the upper part of the support block 51, and the housing ( 10) It is composed of a structure that is exposed to the upper part of the water surface of the specimen contained in and has a sufficient length to enable grasping.

A guide rail 52a may be recessed along the longitudinal direction on the side of the support plate 52, and an absorbent member 100, which will be described later, may be connected to the guide rail 52a for guidance.

The absorbent member 100 may be pressed to the side opposite to the side where the guide rail 52a is formed.

Next, the protective net 53 is fixedly coupled to the upper part of the support block 51 and faces the support plate 52 to secure the water quality testing strap (S).

A water quality testing strap (S) may be interposed and fixed between the protective net 53 and the support plate 52 rotated to face the protective net 53. At this time, the protective net 53 is attached to the water quality testing strap (S). The bottom, that is, the area where the test item part is formed, is equipped with a structure made of mesh material that allows the passage of specimens and restricts the passage of particulate foreign substances.

Next, the vortex fan 54 is coupled to the outside of the support block 51 and forms a vortex in the sample contained in the housing 10 so that the sample contained in the housing 10 can be evenly mixed. Accordingly, specific components of the sample do not reach the measuring unit 30 and the water quality test strap (S) immersed in the sample, preventing errors in test results from occurring.

Next, the absorbent member 100 is coupled to be able to slide back and forth along the longitudinal direction of the support plate 52 and plays the role of absorbing moisture around the support plate 52.

When the lower end of the support plate 52 is lifted up while being immersed in the sample contained in the housing 10, the area around the water quality testing strap (S) including the support plate 52 is soaked with the sample. At this time, the absorbent member (100) ) to quickly absorb excess moisture on the surface of the support plate 52 and the water quality testing strap (S), thereby preventing deterioration of the test items due to excess moisture and producing more accurate test results.

To this end, the absorbent member 100 may be largely illustrated as including a moving body 110, a first absorber 120, a second absorber 130, and a pressing pin 140.

First, the mobile body 110 is made in a tubular shape and is coupled to a structure surrounding the outside of the support plate 52, and a second guide protrusion 111 connected to the guide rail 52a is formed on the inner surface.

The inner surface of the mobile body 110 is spaced apart from the support plate 52 at a certain distance, so that when the mobile body 110 moves, the mobile body 110 is directly connected to the support plate 52 or the water quality inspection strap (S) supported on the support plate 52. Make sure there is no interference.

Next, the first absorber 120 is coupled to the inside of the moving body 110, faces one side of the support plate 52, and plays the role of absorbing moisture on one side of the support plate 52.

In addition, the second absorber 130 is coupled to the inside of the moving body 110 and faces the other side of the support plate 52 and plays the role of absorbing moisture from the other side of the support plate 52.

That is, based on the content shown in FIG. 9, the first absorber 120 is coupled to the inner upper surface of the mobile body 110, and the second absorber 130 is coupled to the inner lower surface of the mobile body 110. Equipped with

The first absorber 120 and the second absorber 130 may be exemplified by sponges, pulp, etc., as long as they can absorb moisture.

Next, the pressing pin 140 is coupled through the moving body 110 and is selectively pressed and fixed to the support plate 52, thereby playing the role of fixing the position of the absorbent member 100.

When the pressing pin 140 is spaced apart from the support plate 52, the absorbent member 100 can move freely, but when the pressing pin 140 is pressing the side of the support plate 52, the absorbent member 100 Random movement may be restricted.

At this time, a through hole 112 through which the pressing pin 140 passes is formed in the moving body 110, and a first support jaw 113 may be formed to protrude inside the through hole 112.

In addition, a second support jaw 141 is formed to protrude on the outer peripheral surface of the compression pin 140, and an elastic spring 150 is installed between the first support jaw 113 and the second support jaw 141 to form a compression pin. (140) can be elastically pressed in the direction of the support plate (52).

That is, when it is desired to move the absorbent member 100, the absorbent member 100 can be moved along the longitudinal direction of the support plate 52 while the compression pin 140 is pulled outward and spaced apart from the support plate 52. When the pulled compression pin 140 is released, the elastic spring 150 moves the compression pin 140 elastically in the direction of pressing the support plate 52 and is pressed and fixed to the side of the support plate 52, thereby forming the absorbent member 100. can be fixed in a fixed position.

Hereinafter, with reference to the accompanying drawings, the operation of the water quality measuring device according to the present invention will be explained by taking the process of measuring water quality using a water quality measuring device as an example.

First, a groundwater sample is collected inside the housing 10. Next, the water quality measurement strap (S) is interposed between the support plate 52 and the protection net 53 of the support part 50 to set up the water quality meter.

Next, as shown in FIG. 5, the support portion 50 is lowered along the vertical rail member 23 so that the water quality measurement strap (S) can be immersed in the sample to a sufficient depth.

Next, the vortex fan 54 is operated to generate a vortex in the sample within the housing 10, and the water quality information measured by the measuring unit 30 is displayed on the display 11 as a measurement value.

Next, the support portion 50 supporting the strap for water quality measurement (S) is moved upward along the vertical rail member 23 to lift it from the sample, and as shown in FIG. 6, the first part of the support block 51 When the guide protrusion 51a rises to a height where it is connected to the circular rail member 22, the support plate 52 is rotated outward so that it can be seated on the horizontal plate 24. Accordingly, the strap S interposed between the support plate 52 and the protection net 53 may rotate along the support plate 52 and be seated and supported on the support plate 52.

At this time, just before the support plate 52 is rotated 90 degrees and seated on the horizontal plate 24, the absorption member 100 is reciprocated in the longitudinal direction of the support plate 52 as shown in FIG. 10 to maintain the support plate 52 and the water quality. Be sure to remove excess moisture around the inspection strap (S).

Next, as shown in FIG. 7, when the support plate 52 is seated on the horizontal plate 24, as shown in FIG. 8, in this state, the support portion 50 is moved in the circumferential direction of the circular rail member 22. The color of the water quality test strap (S) that reacts to the sample can be checked with the naked eye by rotating it accordingly and comparing it to the color chart (26).

In summary, the water quality measuring device according to the present invention not only can mechanically measure water quality of various test items using various types of sensors, but can also easily measure water quality using a water quality testing strap (S). This provides the effect of simplifying the water quality measurement process and deriving a more objective water quality measurement test.

The embodiments of the present invention described above are merely illustrative, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible. Therefore, it will be understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims. In addition, the present invention should be understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims.

10: Housing
20: Holder
30: measuring unit
40: control unit
50: support part
11: display
S: Strap for measuring water quality

Claims (5)

A housing that is shaped like a box to accommodate a sample inside, has an open top, and has a display on the outer side;
A mounting portion detachably coupled to the interior of the housing and formed in the form of a mesh enclosure;
a measuring unit coupled to the holding unit to measure the water quality of the sample accommodated in the housing to generate water quality information;
a control unit that processes the water quality information generated by the measurement unit into measured values and controls the data to be output on a display; and
It includes a support portion slidably mounted on the mounting portion while supporting the water quality testing strap,
The measuring unit,
It includes one or more of a pH measurement sensor, a dissolved oxygen measurement sensor, a conductivity measurement sensor, and a temperature measurement sensor,
The mounting part,
A cylindrical member in the form of a cylindrical enclosure made of mesh material;
a circular rail member formed in a circular shape along the upper circumference of the cylindrical member and guiding the support portion in a circumferential direction; and
It includes a vertical rail member that extends downward from the circular rail member along the inner surface of the cylindrical member and guides the support unit in the vertical direction,
At the top of the circular rail member, a horizontal plate is vertically bent and extended outward, and a vertical plate is vertically bent and extended downward around the circumference of the horizontal plate, so that the circular rail member, the horizontal plate, and the vertical plate are interconnected. 'It is structured so that it can be seated around the top of the housing,
A color comparison table is formed along the circumferential direction on the upper surface of the horizontal plate,
The support part,
a support block formed with a first guide protrusion connected to the circular rail member and the vertical rail member;
A support plate rotatably coupled to the upper part of the support block;
A protective net having a mesh structure that is fixedly coupled to the upper part of the support block and faces the support plate to secure the water quality testing strap;
A vortex fan coupled to the outside of the support block and forming a vortex in the sample accommodated in the housing; and
It includes an absorbent member that is slidably coupled along the longitudinal direction of the support plate and absorbs moisture around the support plate,
A guide rail is recessed along the longitudinal direction on the side of the support plate,
The absorbent member is,
A moving body made of a tubular shape, coupled to a structure surrounding the outside of the support plate, and having a second guide protrusion connected to the guide rail formed on an inner surface;
A first absorber coupled to the inside of the moving body and facing one side of the support plate to absorb moisture from one side of the support plate;
a second absorber coupled to the inside of the moving body and facing the other side of the support plate to absorb moisture from the other side of the support plate; and
It includes a compression pin that penetrates the moving body and is selectively pressed and fixed to the support plate,
A through-hole through which the pressing pin passes is formed in the moving body, a first support jaw is formed to protrude inside the through-hole, and a second support jaw is formed to protrude on the outer peripheral surface of the pressing pin, and the first support jaw and An elastic spring is installed between the second support jaws to elastically press the compression pin in the direction of the support plate.
When the first guide protrusion of the support block rises to the height where it is connected to the circular rail member, the support plate is rotated outward and is seated as a horizontal plate. In this state, the support part is rotated along the circumferential direction of the circular rail member to react to the sample. A groundwater quality measuring device characterized by comparing the color of a water quality testing strap to a color table. delete delete delete In claim 1,
A first connector electrically connected to the battery is formed on the top of the housing, and a second connector connected to the first connector is formed on the bottom of the horizontal plate, and the conductor of the measuring unit is connected to the second connector to connect the battery to the battery. A groundwater quality meter characterized in that it is supplied with power.

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