JP2010085291A - Transparency measuring implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately measure transparency by horizontally holding a sign plate for measuring the transparency of liquids. <P>SOLUTION: When the sign plate 2 is tilting from a horizontal direction, the lengths of both sides of upper threads 6a between an upper connecting part 7 and the sign plate 2 is becoming unbalanced, and the length of an upper thread 6b between the upper connecting part 7 and the sign plate 2 is becoming unbalanced. Lower threads 9a and 9b intersect with the upper threads 6a and 6b approximately at right angles, so that either one of the lower threads 9a and 9b comes loose, and the other is excessively pulled. This causes a balance between the two lower threads 9a and 9b to be lost to return the tilting sign plate 2 to its original horizontal state. When the sign plate 2 is tiling along the contact direction of the lower threads 9a and 9b with the upper surface of the sign plate 2, either one of the upper threads 6a and 6b comes loose, and the other is excessively pulled. This causes a balance between the two lower threads and the upper threads 6a and 6b to be lost to return the tilting sign plate 2 to its original horizontal state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a transparency measuring instrument, and more particularly to a device for measuring the transparency or transparency of water such as sea, lake, river, or other liquid.

  Conventionally, a fluorometer is known as a tool for measuring such transparency or transparency. In such a fluorometer, a white sign board is arranged at the bottom of a cylinder of several tens of centimeters in height, and a liquid such as water for measuring the degree of transparency or transparency is placed in the cylinder, from above the cylinder. While the measurer peeks, the liquid is gradually discharged from the vicinity of the bottom of the cylinder, and when the sign plate is seen, the discharge of the liquid is stopped, and the remaining height of the liquid in the cylinder at this time is used as the transparency. The

  In addition, in the sea, lakes, etc., the length of the string when the transparency board of a white disk with a diameter of 30 centimeters is suspended with a string and submerged from the surface of the sea or the water. To be precise, the depth from the transparency board to the sea surface or the water surface is regarded as transparency.

Japanese Utility Model Publication No. 9-318530 Japanese Utility Model Publication No. 1-180642 Japanese Utility Model Publication No. 62-6519 Japanese Utility Model Publication No. 63-18912 JP 11-337488 A

  The above-mentioned transparency is used to measure turbid waste water and the like, and if the height of the cylinder is several tens of centimeters, it is too low to measure the transparency of river water. This is because the transparency of river water is usually 1 to several meters.

  Moreover, even if the transparency plate is submerged in the river, the river depth is shallow, and the transparency plate reaches the bottom of the river before the transparency plate can no longer be seen, so it is often impossible to measure the transparency of the river water. Transparency can often be measured because there is a lot of water and deep depth downstream of the river, but transparency cannot often be measured because the amount of water is small and depth is shallow upstream of the river.

  Furthermore, in order to measure the transparency or transparency as described above, the transparency plate must be kept “horizontal”. If the transparency plate is tilted, white light from the transparency plate is difficult to reach the measurer, and the transparency becomes smaller than the original value.

  In order to achieve the above object, according to the present invention, a marker plate immersed in a liquid and used to measure the transparency or transparency of the liquid is disposed around the center of the marker plate, and a thread is engaged with the marker plate. A plurality of thread engaging portions that are opposite to each other across the center of the marker plate, the distance from the center of the marker plate is the same, and is in contact with the lower side of the marker plate A plurality of upper threads that are engaged with two of the plurality of thread engaging portions and extend upward, and each of the upper threads is engaged with the different thread engaging portions.

  According to the present invention, there are a plurality of thread engaging portions arranged around the center of the marker plate and engaged with the yarn, and the markers of the thread engaging portions facing each other across the center of the marker plate. The distance from the center of the plate is the same, and is a plurality of lower threads that are in contact with the upper side of the marker plate and engaged with two of the plurality of thread engaging portions, and extend downward. Each is engaged with a different thread engaging portion, the plurality of lower threads are coupled below the marking plate, and the length of each of the lower threads extending from the lower coupling portion is the same. Alternatively, an urging body for urging the marker plate downward is attached below the lower joint.

  Although the present invention was invented to measure the transparency or transparency of river water, lake water, seawater, pond water, water in a basin, water in a field, spring water, drainage, sewage, rainwater, purified water, tap water In addition to water, it can also be used to measure the transparency or transparency of volatile oil, light oil, kerosene, alcohol and other liquids.

  As a result, the sign board is kept horizontal, and even if one upper thread tries to tilt the sign board, the other upper thread is loosened or excessively pulled and the level of the sign board is maintained. Even if one upper thread tries to incline the sign plate, the other lower thread is loosened or excessively pulled, and the level of the sign plate is maintained.

  Further, the upper thread is engaged from above with one of the thread engaging portions of the marker plate, is in contact with the lower side of the marker plate, is engaged with one of the thread engaging portions of the marker plate, Since it extends upwards and engages two or more, it is easy to align the length of the upper thread if they are joined together. Further, from below, the lower thread is engaged with one of the thread engaging portions of the marker plate, is in contact with the upper side of the marker plate, is engaged with one of the thread engaging portions of the marker plate, 2 or more are engaged so that if they are joined below, the length of the lower thread is easily aligned. Therefore, when engaging the upper yarn or the lower yarn one by one with the marker plate, it is quite difficult to align four or more upper yarns or lower yarns. Such a thing disappears. Even if one or more of these are loose, this looseness is immediately absorbed.

(1) Permeability measuring instrument 1
FIG. 1 shows the appearance of the transparency measuring instrument 1. The sign board 2 is made of a transparent resin, has a sufficient thickness of several millimeters to several millimeters, has a square shape of several centimeters, and has a weight of several grams to several tens of grams. The marker plate 2 is immersed in a liquid and is used for measuring the transparency or transparency of the liquid. A circular white sign figure 3 is printed at the center of the sign board 2.

  In the sign graphic 3, two parallel mark lines 4 are formed at the center of the sign graphic 3, and the center of the sign graphic 3 is located between the two mark lines 4. Two mark lines 4 are formed so as to be orthogonal to the two mark lines 4, and the center of the sign graphic 3 is located between the two mark lines 4 orthogonal to each other.

  In these four mark lines 4, the white marker figure 3 is not printed, and thereby the mark line 4 is formed. The mark figure 3 and the four mark lines 4 have the same shape, pattern and color as the figure on the bottom of the JIS standard fluorometer, but may be larger than the figure of this JIS plan.

  Yarn engaging holes 5 (yarn engaging portions) are formed at equal intervals in the four corners of the square-shaped marker plate 2, and from the center of the marker plate 2 to the four thread engaging holes 5. Almost equidistant and equiangular. The upper threads 6a and 6b are in contact with the lower side of the marker plate 2, and the upper threads 6a and 6b are inserted into and engaged with two adjacent thread engaging holes 5 to extend upward. Both ends of the upper threads 6a and 6b are tied at the joining position). Two upper threads 6a and 6b are inserted into and engaged with the four thread engaging holes 5, respectively, and four ends of these upper threads 6a and 6b are connected to an upper joint 7 at one point.

  One upper thread 6a (6b) is inserted and engaged through two adjacent thread engaging holes 5, and each of the two upper threads 6a and 6b is inserted and engaged through a completely different thread engaging hole 5. Yes. The lengths of the two upper threads 6a, 6b extending from the upper coupling point 7, that is, from the upper coupling point 7 through one thread engaging hole 5, through the other thread engaging hole 5, to the upper coupling point 7 again. The lengths of the upper yarns 6a and 6b to reach are the same.

  Therefore, the upper joint 7 is located immediately above the center of the sign plate 2. A single hanging thread 8 is tied to the upper coupling point 7, and the hanging thread 8 extends upward from the upper coupling point 7, and the marker plate 2 is suspended and suspended from the hanging thread 8. Yes.

  Among the four thread engagement holes 5, one same upper thread 6a (6b) is not bridged, that is, over two thread engagement holes 5 where different upper threads 6a, 6b are bridged, One lower thread 9a (9b) is inserted and engaged, and the other one lower thread 9b (9a) is also inserted and engaged across the other two thread engaging holes 5. That is, one lower thread 9a (9b) is inserted and engaged through two adjacent thread engaging holes 5, and each of the two lower threads 9a and 9b is inserted through and engaged with completely different thread engaging holes 5. Has been.

  The two lower threads 9a and 9b are in contact with the upper side of the marker plate 2, and the two lower threads 9a and 9b extend downward from the four thread engaging holes 5, and the lower threads 9a and 9b. These four ends are connected to the lower joint 10 at one point. The lengths of the two lower threads 9a, 9b extending from the lower coupling point 10, that is, from the lower coupling point 10 through one thread engaging hole 5, through the other thread engaging hole 5, to the lower coupling point 10 again. The lengths of the reaching lower yarns 9a, 9b are the same. Accordingly, the lower joint portion 10 is located directly below the center of the sign plate 2.

  A weight 11 (biasing body) is attached and attached to the lower coupling portion 10, and the sign plate 2 is biased downward by the weight of the weight 11. The weight 11 is several tens to hundreds of grams, and is 1 to 1000 times, 10 to 100 times, several times to several tens of times the weight of the sign plate 2 and heavier than the weight of the sign plate 2.

  This prevents the marker plate 2 from wobbling or vibrating. Further, the urging force of the weight 11 pulls the lower yarns 9a and 9b and the upper yarns 6a and 6b so that the marker plate 2 is fixed without being loosened. Therefore, the sign plate 2 is prevented from rotating or tilting.

  The upper yarns 6a, 6b and the lower yarns 9a, 9b are selected from thin, transparent, and strong ones such as fishing lines, so that the sign figure 3 on the sign board 2 is not hindered. The weight 11 is made of lead and a weight of a fishing tackle is used, but may be made of other metal, glass, resin, ceramic, or a mixture thereof. The lengths of the upper yarns 6a and 6b and the lengths of the lower yarns 9a and 9b are the same, but may be different.

  If the upper threads 6a and 6b are longer, the sign figure 3 on the sign board 2 becomes easy to see, but the force of the weight 11 applied to the four thread engaging holes 5 becomes large. If the lower threads 9a and 9b are longer, the force of the weight 11 applied to the four thread engagement holes 5 is reduced, but the sign figure 3 on the sign board 2 is difficult to see.

  A thread fixing tool 12 is attached immediately above the four thread engaging holes 5 of the upper threads 6a and 6b. This thread fixing device 12 is a fishing tool fixing device that is fixed to a fishing line. The upper thread 6a, 6b passes through the thread fixing device 12 and reverses, and the upper thread 6a, 6b passes through the thread fixing device 12. The thread fixing tool 12 is fixed to the upper threads 6a and 6b by passing the thread again. Thereby, the marker plate 2 is fixed by the thread fixing tool 12 and is held so as not to be inclined from the horizontal.

  When the thread fixing device 12 is fixed, or when the upper thread 6a, 6b is coupled to the upper coupling part 7, or the lower thread 9a, 9b is coupled to the lower coupling part 10, the marker plate 2 is placed horizontally. Then, the marker plate 2 is fixed or coupled while being adjusted so as to be orthogonal to the hanging thread 8.

(2) Usage Method of Permeability Measuring Tool 1 FIG. The measuring tube 13 is cylindrical and made of resin such as vinyl chloride, is translucent, transparent or translucent, has a diameter of several tens of centimeters to several centimeters, and a height of 50 centimeters to 1 meter. Yes, the bottom is sealed.

  Some of the measuring cylinders 13 penetrate without a bottom. By connecting the bottomed measuring tube 13 to the bottomed measuring tube 13, the height of the measuring tube 13 can be increased to 1.5 meters, 2 meters, 2.5 meters, 3 meters,. Adhesives and commercially available pipe sockets (not shown) are used at the connection points of the measuring tube 13 and are sealed so that the liquid inside does not leak.

  The measuring tube 13 thus connected is filled with a liquid such as river water to be measured, and the transparency measuring instrument 1 is gently submerged from above. While peeping from above the measurement tube 13, the sedimentation of the transparency measuring instrument 1 is stopped when the sign figure 3 on the upper surface of the sign plate 2 becomes invisible. At this time, the distance between the label plate 2 and the liquid level or the water level of the liquid in the measuring cylinder 13 is measured, and this becomes the degree of transparency or transparency.

  In this case, when the two parallel mark lines 4 of the cross shape of the sign figure 3 are clearly visible, the diopter measuring instrument 1 is sunk, and the mark line 4 is blurred and looks like a single cross. Sedimentation of the transparency measuring instrument 1 is stopped. Alternatively, the diopter measuring instrument 1 is submerged to the bottom of the measuring tube 13 filled with water, and the diopter measuring instrument 1 is gradually lifted up gently, and the mark line 4 is blurred and looks like a single cross. When it is clearly visible in the book, the lifting of the diopter measuring instrument 1 is stopped, and the distance between the marker plate 2 and the liquid level or the water level of the liquid in the measuring tube 13 is measured.

  This degree of transparency or transparency is measured in addition to river water, lake water, seawater, pond water, recreational water, field water, spring water, drainage, sewage, rainwater, purified water, tap water, In addition to water, oil, liquid fuel, volatile oil, light oil, kerosene, heavy oil, alcohol, and other liquids may be used.

  Such a transparency measuring instrument 1 can be used outside the measuring tube 13, and can also be directly used outdoors such as lakes, seas, ponds, water basins, fields, and rivers with deep water. Some side portions of the measuring tube 13 may be shielded from light by a black cloth, paper, sheet, or the like.

(3) Operational Effect of Permeability Measuring Tool 1 FIG. When the sign board 2 is inclined from the horizontal, if there is no lower thread 9a, 9b and only the upper threads 6a, 6b, the sign board 2 is allowed to tilt from the horizontal. This is allowed regardless of whether the directions of the upper threads 6a and 6b contacting the lower surface of the sign plate 2 are parallel or not parallel. However, the parallel direction is more permissible, and the sign plate 2 becomes less inclined as it approaches the orthogonal direction.

  When the sign plate 2 is inclined from the horizontal, the lengths of both sides of the upper thread 6a between the upper joint 7 and the sign plate 2 tend to be unbalanced. The length of the upper thread 6b between the two also tends to be unbalanced. However, since the lower yarns 9a and 9b are substantially orthogonal to the upper yarns 6a and 6b, one of the lower yarns 9a and 9b is loosened and the other is excessively pulled.

  As a result, the two lower threads 9a and 9b cannot be balanced, and the sign board 2 that is about to be tilted is returned to its original horizontal position. Further, when the sign plate 2 tries to incline along the contact direction of the lower threads 9a, 9b with the upper surface of the sign plate 2, one of the upper threads 6a, 6b is loosened and the other is excessively pulled.

  As a result, the two lower thread upper threads 6a and 6b cannot be balanced, and the sign plate 2 that is about to tilt is returned to its original horizontal position. Such horizontal maintenance is achieved when there are at least two upper threads 6a, 6b and at least two lower threads 9a, 9b. Either one of the sign boards 2 is not achieved with less than two.

  As described above, the thread engagement holes 5 are positioned in substantially different directions from the center of the marker plate 2, and the upper threads 6 a and 6 b and the lower threads 9 a and 9 b are engaged with the different thread engagement holes 5. The contact direction of the upper threads 6a and 6b is different from the contact direction of the lower threads 9a and 9b.

  That is, the direction of the two lower threads 9a, 9b contacting the upper side of the sign plate 2 is the same or different even if the direction of the two upper threads 6a, 6b contacting the lower side of the sign plate 2 is the same or different. Even if they are the same or different, the contact direction of the upper threads 6a and 6b is different from the contact direction of the lower threads 9a and 9b. Accordingly, even if the sign plate 2 is inclined from the horizontal, a part of the upper thread 6a, 6b is loosened or excessively pulled, or a part of the lower thread 9a, 9b is loosened or excessively pulled. The plate 2 is returned to its original level.

  The sign board 2 may be heavy. Further, the lower threads 9a and 9b and the weight 11 may be omitted. In this case, the upper threads 6a and 6b are at least three. The directions in which the at least three upper threads 6a and 6b abut on the lower side of the label plate 2 are also different from each other. As a result, even if there is no lower thread 9a, 9b, even if the sign plate 2 is inclined from the horizontal, a part of the three upper threads 6a, 6b is loosened or excessively pulled. Return to level.

  However, if there is the above-described thread fixing tool 12, the lower threads 9a and 9b are not present, and even when there are two upper threads 6a and 6b, the level is maintained. At this time, the upper threads 6 a and 6 b may be fixed to the thread engagement hole 5 with an adhesive or the like without the thread fixing tool 12. Even in this case, the lower yarns 9a and 9b are not provided, and even when the upper yarns 6a and 6b are two, the level is maintained.

  Further, the upper threads 6a and 6b are engaged with one of the thread engaging portions 5 of the marker plate 2 from above and are brought into contact with the lower side of the marker plate 2, so that the thread engaging portions 5 of the marker plate 2 Furthermore, since they are engaged with each other and extend upward, and two or more are engaged with each other, the lengths of the upper threads 6a and 6b are easily aligned when they are joined together. Further, the lower threads 9a and 9b are engaged with one of the thread engaging portions of the marker plate 2 from below, are brought into contact with the upper side of the marker plate 2, and further 1 of the thread engaging portion 5 of the marker plate 2 are connected. Are engaged with each other and extended downward, and two or more are engaged with each other, so that when these are joined together, the lengths of the lower threads 9a, 9b are easily aligned.

  Therefore, when engaging the upper thread 6a, 6b or the lower thread 9a, 9b one by one with the marker plate 2, it is quite difficult to align four or more upper threads 6a, 6b or the lower threads 9a, 9b, One or more will always be slack, but in the present embodiment, this is not the case. Even if one or more of these are loose, this looseness is immediately absorbed.

(4) Other Embodiments The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the number of thread engagement holes 5 may be three, five, six, seven, eight, nine, ten,. Accordingly, the number of upper yarns 6a and 6b and the number of lower yarns 9a and 9b are increased or decreased. In this case, the upper yarns 6a, 6b or the lower yarns 9a, 9b are inserted into and engaged with the two yarn engaging holes 5 that are adjacent to each other, that is, every other one.

  When the number of the thread engaging holes 5 is an odd number of 3, 5, 7,..., The thread engaging portions 5 do not face each other with the center of the marker plate 2 interposed therebetween. However, in this case, each thread engagement portion 5 is filled at any one or more of equal intervals, equal angles from the center of the marker plate 2, or equal distances from the center of the marker plate 2. The position of the thread engaging portion 5 is determined.

  The upper yarns 6a and 6b and the lower yarns 9a and 9b may be inserted and engaged with the same two yarn engaging portions 5 at the same time. In this case, the upper thread 6a, 6b and the lower thread 9a, 9b are inserted into and engaged with one thread engaging portion 5, and the upper thread 6a, 6b and the lower thread 9a, 9b are placed above and below the same portion of the marker plate 2. And abut.

  The upper yarns 6a, 6b and the lower yarns 9a, 9b are alternately inserted through and engaged with the plurality of yarn engaging holes 5. However, when the number of the thread engagement holes 5 is an odd number, one upper thread 6a, 6b and one lower thread 9a (9b) are inserted and engaged in the same two thread engagement holes 5. The number of the two thread engagement holes 5 into which the one upper thread 6a (6b) and the one lower thread 9a (9b) are inserted and engaged is only two of all the thread engagement holes 5.

  However, the number of the two thread engagement holes 5 into which one upper thread 6a (6b) and one lower thread 9a (9b) are inserted and engaged may be three or more, which is the thread. This is possible not only when the number of the engagement holes 5 is an odd number but also when the number is an even number. In all of these cases, the upper threads 6a and 6b abut against each other between the thread engagement holes 5 of the marker plate 2 and the lower threads 9a and 9b abut from above. Thus, the more the lower yarns 9a, 9b or / and the upper yarns 6a, 6b, the more the marker plate 2 becomes less inclined from the horizontal and becomes more stable in the horizontal.

  In the above embodiment, the upper thread 6a, 6b and the lower thread 9a, 9b are inserted into and engaged with one thread engaging hole 5. Thereby, the number of the thread engagement holes 5 can be reduced. However, only the upper threads 6a and 6b may be inserted into and engaged with one thread engaging hole 5, or only the lower threads 9a and 9b may be inserted and engaged. Thereby, the movement of the lower threads 9a and 9b with respect to the thread engagement hole 5 and the movement of the upper threads 6a and 6b with respect to the thread engagement hole 5 become smooth.

  At this time, the thread engagement hole 5 into which the upper threads 6a, 6b are inserted and engaged and the thread engagement hole 5 into which the lower threads 9a, 9b are inserted and engaged are completely different or partly different from each other. Some may not be shared. Further, the thread engagement hole 5 through which the upper threads 6a and 6b are inserted and engaged and the thread engagement hole 5 through which the lower threads 9a and 9b are inserted and engaged are as described above. It may be the same or different.

  As shown in FIG. 4, the positions of all the thread engagement holes 5 do not have to be equidistant from the center of the marker plate 2. In FIG. 4, the positions of the thread engagement holes 5 are equiangular and equally spaced. Further, as shown in FIG. 5, the positions of all the thread engagement holes 5 may not be equiangular from the center of the marker plate 2, and the intervals between the thread engagement holes 5 may be different. In FIG. 5, each position of the thread engagement hole 5 is equidistant from the center of the marker plate 2.

  As shown in FIGS. 6 and 7, the thread engagement hole 5 through which the upper threads 6a and 6b are inserted and engaged and the thread engagement hole 5 through which the lower threads 9a and 9b are inserted and engaged are not common but separated. May be. 6 and 7, the positions of the thread engagement holes 5 are equiangular, the thread engagement holes 5 into which the upper threads 6a and 6b are inserted and engaged are equally spaced, and the lower threads 9a and 9b are inserted. The mating thread engaging holes 5 are also equidistant.

  As shown in FIG. 8, the positions of the thread engagement holes 5 are not equidistant from the center of the marker plate 2, and the positions of the thread engagement holes 5 may not be equidistant. As shown in FIG. 9, one thread engagement hole 5 through which the upper threads 6a and 6b are inserted and engaged with one thread engagement hole 5 through which the lower threads 9a and 9b are inserted and engaged are arranged alternately. May be. 8 and 9, there are six thread engaging holes 5, three upper threads 6a, 6b and 6c, and three lower threads 9a, 9b and 9c. 9, the number of the thread engagement holes 5 may be increased, and two, three, four, and so on may be used.

  4 to 9, it can be said that the distances from the center of the marker plate 2 of the thread engaging holes 5 facing each other across the center of the marker plate 2 are the same. Even in this case, if the lengths of the upper yarns 6a, 6b, and 6c and the lengths of the lower yarns 9a, 9b, and 9c are the same, the level of the sign plate 2 is maintained.

  If the positions of all the thread engagement holes 5 are not equidistant from the center of the sign plate 2, the positions of all the thread engagement holes 5 may be equiangular from the center of the sign plate 2. Alternatively, the intervals of the thread engagement holes 5 may or may not be the same. If the positions of all the thread engagement holes 5 are not equiangular from the center of the sign plate 2, the positions of all the thread engagement holes 5 may or may not be equidistant from the center of the sign plate 2. Alternatively, the intervals of the thread engagement holes 5 may or may not be the same. When the intervals between the thread engagement holes 5 are not the same, the positions of all the thread engagement holes 5 may or may not be the same angle from the center of the marker plate 2, The position of the thread engagement hole 5 may or may not be equidistant from the center of the marker plate 2.

  The number of the thread engagement holes 5 through which the one upper thread 6a (6b) or one lower thread 9a (9b) is inserted and engaged is two, but may be three, four, or five or more. . Among these, when the thread engaging hole 5 to be inserted and engaged is an odd number, the lower thread 9a, 9b or the upper thread 6a, 6b bypasses the outer edge of the sign plate 2 and is connected from one surface to the other surface.

  In addition to the hole shape, the thread engagement hole 5 may be a recess recessed from the outer edge of the marker plate 2. In this case, the concave portion may be a “J shape”, “L shape”, “V shape”, “Z shape”, “W shape”, “S shape”, or a spiral shape. 6b or the lower threads 9a, 9b are difficult to come off.

  The suspension thread 8 is inserted into and engaged with a thin cylindrical fastener (not shown), and the fastener is moved up and down from the suspension thread 8 over the upper threads 6a and 6b, so that the upper joint 7 May move up and down. Thereby, the upper coupling part 7 can be moved to a position where the sign graphic 3 on the sign board 2 is easy to see.

  A hanging thread (not shown) may be connected to the lower joint 10 and the weight 11 may be connected to the lower end of the hanging thread. Similarly, this hanging thread is inserted into and engaged with a thin cylindrical fastener (not shown), and this fastener is moved up and down from the hanging thread over the lower threads 9a and 9b, thereby lowering The joint location 10 may move up and down. Thereby, the force of the weight 11 applied to the four thread engagement holes 5 can be adjusted. Further, this weight 11 may be a vertically movable fastener.

  A separate object such as a roller may be interposed between the upper threads 6a and 6b and the bottom of the sign plate 2, and between the lower threads 9a and 9b and the top of the sign plate 2 may be interposed. Another object such as a roller may also be interposed. Even in this case, there is no change in the contact.

  Part or all of the thread fixing tool 12 may be omitted. Even in this case, even if the sign plate 2 is inclined from the horizontal, a part of the upper thread 6a, 6b is loosened or excessively pulled, or a part of the lower thread 9a, 9b is loosened or excessively pulled. The plate 2 is returned to its original level.

  Instead of the weight 11, a spring connected to the lower ends of the lower threads 9a, 9b may be provided. The lower end of this spring is fixed to the bottom of the measuring tube 13. The sign plate 2 itself may be heavy. Even in these cases, the sign plate 2 is urged downward.

  In addition to the square plate shape, the sign plate 2 is a rectangular plate, a rhombus plate, a parallelogram plate, a triangular plate, a pentagonal plate, a hexagonal plate, a heptagonal plate, an octagonal plate, a nine-sided plate, a decagonal plate, ... A circular plate, an elliptical plate, or the like may be used. The marker plate 2 may be a cube, a rectangular parallelepiped, a polygonal cylinder, a polygonal cylinder, a cylinder, a cylinder, an elliptic cylinder, an elliptic cylinder, a hemisphere, a truncated pyramid, a truncated cone, or the like. As long as the upper surface of the sign board 2 is horizontal and flat and the sign figure 3 can be formed, any form may be used.

  Moreover, the sign board 2 may be laminated | stacked on multiple layers. As a result, the portions of the upper thread 6a, 6b or the lower thread 9a, 9b spanning the thread engaging hole 5 are not exposed on the upper surface or the lower surface of the marker plate 2, and between the plurality of marker plates 2. Can be shielded.

  The marker plate 2 can be bent and is flexible, but may be a rigid body that is difficult to bend. In the case of this rigid body, the intervals between the thread engagement holes 5 through which the two upper threads 6a and 6b are inserted and engaged may be different, and the positions of the thread engagement holes 5 are from the center of the marker plate 2 or the like. Not distance and equiangular. Thereby, when the sign plate 2 is inclined, the passing amount of the upper threads 6a and 6b passing through the thread engaging hole 5 is different for each of the upper threads 6a and 6b, and the sign plate 2 tends to twist. Twist is prevented by the rigidity of the sign board 2, and as a result, the sign board 2 returns to the horizontal.

  In this case, the lower yarns 9a and 9b may be omitted, and the number of the upper yarns 6a and 6b is not three, but two, the level of the sign board 2 is maintained. However, the lengths of the two upper threads 6 a and 6 b are different, and the upper coupling portion 7 is located immediately above the center of the sign plate 2.

  Similarly, when the marker plate 2 is a rigid body, the intervals between the thread engagement holes 5 through which the two lower threads 9a and 9b are inserted and engaged may be different. It is not equidistant and equiangular from the center of the plate 2. Thereby, when the sign plate 2 is inclined, the passing amount of the lower threads 9a and 9b passing through the thread engaging hole 5 is different for each of the lower threads 9a and 9b, and the sign plate 2 tends to twist. Twist is prevented by the rigidity of the sign board 2, and as a result, the sign board 2 returns to the horizontal.

  In this case, even if there are two lower threads 9a and 9b and one upper thread 6a and 6b, the level of the sign board 2 is maintained. However, the lengths of the two lower threads 9a and 9b are different, and the positions of the two thread engaging holes 5 through which the one upper thread 6a and 6b are inserted and engaged are sandwiched between the centers of the marker plates 2 and the upper connecting points. 7 is located immediately above the center of the sign board 2, and the lower joint 10 is located directly below the center of the sign board 2.

  The lengths of the lower yarns 9a and 9b and the upper yarns 6a and 6b may be different, but the positions of the upper coupling point 7 and / or the lower coupling point 10 are arranged so that the sign plate 2 is kept horizontal. Adjusted. The lower yarns 9a and 9b and the upper yarns 6a and 6b may be made of resin such as nylon, fiber, rubber, metal, carbon, a mixture thereof, and other than yarn, string, belt, ribbon, band Etc. The sign plate 2 may be made of resin, ceramic, glass, rubber, metal, carbon, a mixture thereof, or the like.

  The upper coupling portion 7 can be omitted. In this case, the upper threads 6 a and 6 b extend to the upper edge of the measuring tube 13. Further, the lower joint portion 10 can be omitted. In this case, the weight 11 or the spring is attached to both ends of each lower thread 9a, 9b. The lower end of this spring is fixed to the bottom of the measuring tube 13.

(5) Effects of other inventions
[1] A marker plate that is immersed in a liquid and measures the transparency or transparency of the liquid, and is arranged around the center of the marker plate and includes a plurality of thread engaging portions that engage with a thread. And the distance of the thread engaging portions facing each other across the center of the marker plate from the center of the marker plate is the same. A plurality of upper threads engaged with each other and extending upward, each of the upper threads being engaged with a different thread engaging portion. Thereby, a sign board can be set horizontally.

[2] The transparency measuring instrument according to claim 1, wherein the plurality of upper threads are coupled above the marker plate, and the lengths of the upper threads extending from the upper coupling portion are the same. Thereby, since the length of each upper thread | yarn is the same, it becomes easy to set a sign board horizontally.

[3] The number of the upper threads is at least three, and the directions in which at least two of the at least three upper threads are in contact with the lower side of the marker plate are different from each other. The transparency measuring instrument described. Thus, even if there is no lower thread, even if the sign board is inclined from the horizontal, a part of the three upper threads are loosened or excessively pulled, so that the sign board is returned to the original level.

[4] A plurality of thread engaging portions arranged around the center of the marker plate and engaged with the yarn, and the center of the marker plate of the thread engaging portion facing each other across the center of the marker plate A plurality of lower threads that are in contact with the upper side of the marker plate and engaged with two of the plurality of thread engaging portions and extend downward, and each of the lower threads is The plurality of lower threads are coupled to each other below the marker plate, and the lengths of the lower threads extending from the lower coupling portion are the same. 4. The transparency measuring instrument according to claim 1, wherein an urging member for urging the marker plate downward is attached below the lower coupling portion. Thereby, not only the upper thread but also the lower thread can be used to hold the sign board horizontally, so that the possibility that the sign board tilts from the horizontal is lower.

[5] There are at least two upper threads and at least two lower threads. The at least two upper threads are in contact with the lower side of the marker plate, and the at least two lower threads are in the above direction. 5. The transparency measuring tool according to claim 1, 2, 3 or 4, wherein the direction of contact with the upper side of the sign board is different from each other. As a result, even if the sign board is inclined from the horizontal, a part of the upper thread is loosened or excessively pulled, or a part of the lower thread is loosened or excessively pulled, so that the sign board returns to the original level. Is done.

[6] The transparency measuring instrument according to claim 1, 2, 3, 4 or 5, wherein the transparency measuring instrument is lowered in the liquid filled in a transparent tube. Thereby, even if there is a continuous flow or a vortex like a river water and the liquid whose transparency or transparency is not stable, the transparency or the transparency can be measured in a state of being accurately stopped.

[7] The plurality of thread engaging portions are substantially equiangular and equidistant from the center of the marker plate, and each thread engaging portion is equidistant, or substantially from the center of the marker plate. Equally spaced and equiangular positions, each thread engaging portion is not equidistant, or approximately equidistant from the center of the marker plate and each thread engaging portion is not equiangular At an interval, or at an equiangular position, not at an approximately equidistant position from the center of the sign plate, and each thread engaging portion is at an equidistant interval, or at an approximately equidistant position from the center of the sign plate Each thread engaging portion is not at an angular position and is not evenly spaced, or is not at a substantially equidistant position from the center of the marker plate and is at an equal angle, and each thread engaging portion is not evenly spaced, or the marker There is no equidistant position from the center of the plate, and there is no equiangular position. 7. The thread engaging portion according to claim 1, 2, 3, 4, 5 or 6, wherein the thread engaging portions are not equidistant from each other at substantially equal distance from the center of the marker plate. Permeability measuring instrument. This can similarly hold / maintain the level of the sign board.

  Keep the sign board that measures the transparency of the liquid horizontal and measure the transparency accurately. When the sign board 2 is inclined from the horizontal, the lengths of both sides of the upper thread 6a between the upper joint 7 and the sign board 2 tend to become unbalanced. Similarly, the upper joint 7 and the sign board 2 The length of the upper thread 6b in between also tends to be unbalanced. However, since the lower yarns 9a and 9b are substantially orthogonal to the upper yarns 6a and 6b, one of the lower yarns 9a and 9b is loosened and the other is excessively pulled.

  As a result, the two lower threads 9a and 9b cannot be balanced, and the sign board 2 that is about to be tilted is returned to its original horizontal position. Further, when the sign plate 2 tries to incline along the contact direction of the lower threads 9a, 9b with the upper surface of the sign plate 2, one of the upper threads 6a, 6b is loosened and the other is excessively pulled. As a result, the two lower thread upper threads 6a and 6b cannot be balanced, and the sign plate 2 that is about to tilt is returned to its original horizontal position.

The appearance of the transparency measuring instrument 1 is shown. A measuring cylinder 13 in which a liquid whose transparency or transparency is to be measured is immersed is shown. The effect of horizontal holding of the sign board 2 of the transparency measuring instrument 1 will be shown. An embodiment in which the positions of all the thread engagement holes 5 are not equidistant from the center of the marker plate 2 is shown. An embodiment is shown in which the positions of all the thread engagement holes 5 are not equiangular from the center of the marker plate 2. The thread engagement hole 5 through which the upper threads 6a and 6b are inserted and engaged and the thread engagement hole 5 through which the lower threads 9a and 9b are inserted and engaged are not common but separate. The thread engagement hole 5 through which the upper threads 6a and 6b are inserted and engaged and the thread engagement hole 5 through which the lower threads 9a and 9b are inserted and engaged are not common but separate. The position of the thread engagement hole 5 is not equal from the center of the marker plate 2 but is not equal, and each position of the thread engagement hole 5 is not even. An embodiment is shown in which one thread engaging hole 5 into which the upper threads 6a, 6b are inserted and engaged and one thread engaging hole 5 into which the lower threads 9a, 9b are inserted and engaged are alternately arranged.

Explanation of symbols

1 ... permeability measuring instrument, 2 ... signboard,
3 ... signature figure, 4 ... mark line,
5 ... thread engaging hole (thread engaging part),
6a, 6b, 6c ... upper thread,
7 ... Upward joint, 8 ... Hanging thread,
9a, 9b, 9c ... lower thread,
10 ... lower joint, 11 ... weight (biasing body),
12 ... thread fixing tool, 13 ... measuring tube.

Claims (6)

In a sign board that is immersed in a liquid and measures the transparency or transparency of the liquid,
A plurality of thread engaging portions arranged around the center of the marker plate and engaged with the yarn, and the distance from the center of the marker plate of the thread engaging portion facing each other across the center of the marker plate Are the same and
A plurality of upper threads that are in contact with the lower side of the marker plate and are engaged with two of the plurality of thread engaging portions and extend upward, each of the upper threads being different from each other. A fluoroscope measuring instrument characterized by being engaged with.   2. The transparency measuring instrument according to claim 1, wherein the plurality of upper threads are coupled above the marker plate, and the lengths of the upper threads extending from the upper coupling portion are the same.   3. The transparency measurement according to claim 2, wherein there are at least three upper threads, and directions in which at least two of the at least three upper threads are in contact with the lower side of the marker plate are different from each other. Ingredients. A plurality of thread engaging portions arranged around the center of the marker plate and engaged with the yarn, and the distance from the center of the marker plate of the thread engaging portion facing each other across the center of the marker plate Are the same and
A plurality of lower threads that are brought into contact with the upper side of the marker plate and engaged with two of the plurality of thread engaging portions and extend downward, and each of the lower threads is connected to a different thread engaging portion. Engaged,
The plurality of lower threads are coupled below the sign board, and the lengths of the lower threads extending from the lower coupling portion are the same,
2. The transparency measuring tool according to claim 1, wherein a biasing body for biasing the marker plate downward is attached to the lower coupling portion or the lower coupling portion.   There are at least two upper threads and at least two lower threads. The direction of the at least two upper threads contacting the lower side of the marking plate and the at least two lower threads of the marking plate 5. The transparency measuring tool according to claim 4, wherein the direction of contact with the upper side is different from each other.   6. The transparency measuring tool according to claim 3, wherein the transparency measuring tool is lowered in the liquid filled in a transparent tube.

Images