CN109975067B

CN109975067B - Water body sample sampling depth correcting device

Info

Publication number: CN109975067B
Application number: CN201910304007.5A
Authority: CN
Inventors: 李昆; 赵晓辉; 张盼伟; 刘晓茹; 万晓红; 彭文启; 周怀东; 王亮; 吴雷祥; 霍炜洁; 王启文; 鞠瑞; 谭亚男; 丁相毅; 黄伟; 吴佳鹏
Original assignee: China Institute of Water Resources and Hydropower Research
Current assignee: China Institute of Water Resources and Hydropower Research
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-07-28
Anticipated expiration: 2039-04-16
Also published as: CN109975067A

Abstract

The invention discloses a water sample sampling depth correcting device, which comprises a fixing clamp, a background disc, a reading disc, a heavy hammer and a central screw, wherein two convex sheets are arranged on the outer side of the fixing clamp, sampling rope grooves are arranged on the inner side of the fixing clamp, anti-skid rubber is arranged in the sampling rope grooves, two limiting grooves are fixedly connected with the back side of the background disc, a central line groove is arranged between the two limiting grooves and positioned on the back side of the background disc, a threaded central hole is arranged at the central position of the background disc, a central line is arranged on the front side of the background disc, the reading disc comprises a central disc and a dial scale, the outer ring of the reading disc is the dial, the inner ring of the reading disc is the central disc, and the middle part of the central disc is provided with a smooth central hole. The device has the characteristics of light volume, portability and accurate reading, and reduces the excessive carrying burden for sampling workers.

Description

Water body sample sampling depth correcting device

Technical Field

The invention relates to a correcting device, in particular to a water body sample sampling depth correcting device, which is suitable for correcting the sampling depth of a field water body sample and belongs to the technical field of water body sample sampling measurement.

Background

The collection of the water body sample is an important means for hydrological scientific research and water body management, and the collection of the representative sample is an important basis and premise for smoothly carrying out various environmental monitoring works, so that the related sample collection method and specification have specific requirements on the sample collection depth. At present, the sample collection depth is determined by mainly measuring the length of a sampling rope put into water after adding a balance weight to a sampler, however, when the actual sample is collected, the situation that the placement length of the sampling rope is inconsistent with the actual sampling depth is often caused due to the influence of uncertain factors such as field wind, water flow and the like, so that the requirements of relevant standard specifications cannot be met, and the collection of a representative water body sample is influenced; in addition, even if the water sample collector is added with the balance weight as much as possible, the sampling rope cannot keep a vertical state because the ship body on the water surface cannot be fixed and kept at the position, and the problem that the sampling depth is inconsistent with the length of the sampling rope cannot be effectively solved by the method; when water samples of large rivers and large reservoirs in China are collected, large ships can be used for carrying out work, the ship body can be guaranteed to be fixed on the water surface after the anchor is dropped, and then the samples are collected after the counter weight is added on the water sample collector, so that the method is time-consuming and labor-consuming, substantially increases more cost, and is not beneficial to the efficient carrying of the water sample collection work; a few colleges and scientific research units are provided with acoustic Doppler flow velocity profilers to solve the problems, the acoustic Doppler flow velocity profiler can accurately position the depth of a water sample collector in water by using the sound wave principle, but the acoustic Doppler flow velocity profiler is expensive in equipment and complex in operation procedure, and cannot meet the daily work and production requirements of numerous front-line laboratories in China.

Disclosure of Invention

Aiming at the defects existing in the existing water body sample collection, the invention aims to overcome the defects of the existing water body sample collection technology and provides a water body sample sampling depth correction device.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention relates to a water sample sampling depth correcting device, which comprises a fixing clamp, a background disc, a reading disc, a heavy hammer and a central screw, and is characterized in that two convex sheets are arranged on the outer side of the fixing clamp, sampling rope grooves are formed in the inner side of the fixing clamp, anti-skid rubber is arranged in each sampling rope groove, two limiting grooves are fixedly connected to the back side of the background disc, a central line groove is formed between the two limiting grooves and positioned on the back side of the background disc, a threaded central hole is formed in the central position of the background disc, a central line is formed in the front side of the background disc, the central line of the background disc is parallel to the sampling rope, the reading disc comprises a central disc and a dial disc, the dial disc is fixedly connected to the outer side of the central disc, a smooth central hole is formed in the middle of the central disc, six through holes are formed in the dial disc, the weight is connected with the reading disc through an iron wire, the central screw comprises a screwing handle, a smooth part and a threaded part, and the screwing handle, the smooth part and the threaded part are fixedly connected in sequence.

As a preferred technical scheme of the invention, the central screw is sleeved in the threaded central hole and the smooth central hole, the inner wall of the threaded central hole is provided with internal threads, and the outer side of the threaded part is provided with external threads.

As a preferable technical scheme of the invention, the sampling rope grooves are provided with two groups, the specifications of the two groups of sampling rope grooves are different, and the two convex sheets are symmetrically distributed on two sides of the fixing clamp.

As a preferable technical scheme of the invention, the median line and the median line groove are positioned in the same plane, and the two limiting grooves are arranged in parallel.

As a preferable technical scheme of the invention, six through holes are distributed at equal intervals about the center of the dial plate, and the center plate is made of transparent materials.

As a preferable technical scheme of the invention, the front face of the dial is divided into six areas, each area is 60 degrees, the marking line of the dial is divided into an outer marking line and an inner marking line, the inner marking line is provided with 0-60 degrees of scales, and the outer marking line is provided with a conversion coefficient corresponding to the inner marking line.

The invention has the following beneficial effects: the invention provides a water body sample sampling depth correcting device aiming at the problem that the sampling depth is inconsistent with the length of a sampling rope when a water body sample is collected, and the problem that the existing water body sample sampling depth is inaccurate is effectively solved; the device is simple and convenient in assembling and disassembling process and quick in reading, and is convenient for sampling personnel to use; compared with the acoustic Doppler current profiler which is expensive and complex to operate, the device has the advantages of low price, simple operation and convenient popularization; the device reading is accurate, can accurately convert the actual water sample collection degree of depth, satisfies relevant sampling standard requirement completely, and the design is novel, and the structure is ingenious, and the practicality is strong.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of the principles of the present invention;

FIG. 2 is a schematic diagram of the operation of the present invention;

FIG. 3 is a schematic view of a reading disk of the present invention;

FIG. 4 is a front view of the background tray of the present invention;

FIG. 5 is a rear view of the background disc of the present invention;

FIG. 6 is a side view of the background disc of the present invention;

FIG. 7 is a top plan view of the mounting clip of the present invention;

FIG. 8 is a front schematic view of a mounting clip of the present invention;

FIG. 9 is a schematic diagram of the structure of the weight of the present invention;

FIG. 10 is a schematic view of the construction of the central screw of the present invention.

In the figure: 1. a fixing clip; 11. a sampling rope groove; 12. an anti-skid rubber sheet; 13. a raised sheet; 2. a background disc; 21. a limiting groove; 22. a midline groove; 23. a threaded central bore; 24. a median line; 3. a reading disc; 31. a central disk; 32. a dial scale; 33. smoothing the central hole; 34. perforating; 4. a weight; 41. iron wires; 5. a central screw; 51. screwing the handle; 52. a smoothing section; 53. a threaded portion.

Detailed Description

The preferred embodiments of the present invention will be further described with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.

Example 1

As shown in fig. 1-10, a water sample sampling depth correcting device comprises a fixing clip 1, a background disc 2, a reading disc 3, a weight 4 and a central screw 5, wherein two convex sheets 13 are arranged on the outer side of the fixing clip 1, a sampling rope groove 11 is arranged on the inner side of the fixing clip 1, anti-skid rubber 12 is arranged in each sampling rope groove 11, two limiting grooves 21 are fixedly connected to the back surface of the background disc 2, a central line groove 22 is arranged between the two limiting grooves 21 and on the back surface of the background disc 2, a threaded central hole 23 is arranged at the central position of the background disc 2, a central line 24 is arranged on the front surface of the background disc 2, the reading disc 3 comprises a central disc 31 and a dial 32, the dial 32 is fixedly connected to the outer side of the central disc 31, a smooth central hole 33 is arranged at the middle part of the central disc 31, six through holes 34 are arranged in the, the center screw 5 includes a screw shank 51, a smooth portion 52, and a threaded portion 53, and the screw shank 51, the smooth portion 52, and the threaded portion 53 are fixedly connected in this order.

The central screw 5 is sleeved in the threaded central hole 23 and the smooth central hole 33, an internal thread is arranged on the inner wall of the threaded central hole 23, and an external thread is arranged on the outer side of the threaded part 53, so that the assembly is convenient.

Sampling rope recess 11 is provided with two sets ofly, and two sets of sampling rope recesses 11's specification is different, the sampling rope of applicable different specifications, and two protruding thin slice 13 symmetric distribution are in fixation clamp 1 both sides, the installation fixation clamp 1 of being convenient for.

The median line 24 and the median line recess 22 lie in the coplanar, two spacing recesses 21 are set up in parallel, can accurate registration.

The six perforations 34 are equally spaced about the centre of the dial 32 and the central disc 31 is made of a transparent material to facilitate reading.

The dial 32 is divided into six regions in the front, each region is 60 degrees, the marking line of the dial 32 is divided into an outer side marking line and an inner side marking line, the inner side marking line is provided with 0-60 degrees of scales, the outer side marking line is provided with a conversion coefficient corresponding to the inner side marking line, and the precision is improved.

Specifically, when the device is used, as shown in fig. 1, the device reads the offset angle of the sampling rope by recording the length of the sampling rope, calculates the actually adopted depth by using a calculation formula of H L× cos θ, wherein H is the actually adopted depth, L is the length of the sampling rope, θ is the offset angle of the sampling rope, the fixing clamp 1 is used for fixing the background disc 2 and the reading disc 3 to the sampling rope, the reading disc 3 reads the offset angle of the sampling rope, two convex sheets 13 are arranged on the outer side of the fixing clamp 1 and are inserted into a center line groove 22 of the background disc 2, so as to fix the background disc 2, two sampling rope grooves 11 for clamping different types of sampling ropes are arranged on the inner side of the fixing clamp 1, the sampling rope grooves 11 are provided with anti-slip rubber sheets 12, during sampling, the sampling rope is clamped into the sampling rope grooves 11, the background disc 2 is used for connecting the fixing clamp 1 and the reading disc 3 simultaneously, the center line 24 representing the center line 24 of the sampling rope is more clearly reflected in the reading disc 3, the reading disc 2, the reading disc 2 is provided with two sampling rope grooves 21 with a sampling rope, the reading center line, the reading line is used for reading center line, the reading disc 34 is used for reading disc 20, the reading disc 34, the reading disc 20, the reading line, the reading disc 20, the reading line, the reading disc is used for reading line, the reading line reading disc 20, the reading line reading disc 20, the reading line reading disc 20, the reading disc is used for reading line, the reading disc 20, the reading line reading disc 2 reading disc 20 reading line reading disc, the reading disc is used for reading disc, the reading line reading disc, the reading disc 2 reading disc, the reading disc 2 reading disc, the reading disc is used for reading disc, the reading disc is used for reading disc, the reading disc 20 reading disc, the reading disc is used for reading disc, the reading disc 20 reading line reading disc, the reading disc is used for reading disc, the reading disc 20 reading disc, the reading disc is used for reading disc is used for reading disc, the reading disc 20 reading disc, the reading disc, the reading disc.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water sample sampling depth correction device comprises a fixing clamp (1), a background disc (2), a reading disc (3), a heavy hammer (4) and a central screw (5), and is characterized in that two raised sheets (13) are arranged on the outer side of the fixing clamp (1), a sampling rope groove (11) is arranged on the inner side of the fixing clamp (1), anti-skid rubber sheets (12) are arranged in the sampling rope groove (11), two limiting grooves (21) are fixedly connected to the back of the background disc (2), a central line groove (22) is arranged between the two limiting grooves (21) and on the back of the background disc (2), a threaded central hole (23) is arranged at the central position of the background disc (2), a central line (24) is arranged on the front of the background disc (2), the central line (24) of the background disc (2) is parallel to the sampling rope, the reading disc (3) comprises a central disc (31) and a dial (32), dial (32) fixed connection is in the center dish (31) outside, smooth centre bore (33) have been seted up at center dish (31) middle part, six perforation (34) have been seted up in dial (32), six perforation (34) distribute about dial (32) center equidistance, center dish (31) are made for transparent material, and the extension line of scale mark is through perforation (34) central point, weight (4) hang in the position of perforation (34)0 degree, weight (4) are connected with reading dish (3) through iron wire (41), center screw (5) are including twisting handle (51), smooth portion (52) and screw thread portion (53), twist handle (51), smooth portion (52) and screw thread portion (53) fixed connection in proper order.

2. The water body sample sampling depth correction device of claim 1, wherein: the central screw (5) is sleeved in the threaded central hole (23) and the smooth central hole (33), an internal thread is formed in the inner wall of the threaded central hole (23), and an external thread is formed in the outer side of the threaded portion (53).

3. The water body sample sampling depth correction device of claim 1, wherein: the sampling rope grooves (11) are provided with two groups, two groups of sampling rope grooves (11) are different in specification, and the two protruding thin sheets (13) are symmetrically distributed on two sides of the fixing clamp (1).

4. The water body sample sampling depth correction device of claim 1, wherein: the median line (24) and the median line groove (22) are positioned in the same plane, and the two limiting grooves (21) are arranged in parallel.

5. The water body sample sampling depth correction device of claim 1, wherein: dial (32) openly divide into six regions altogether, and every region is 60, the mark line of dial (32) divide into outside mark line and inboard mark line, and the inboard mark line sets up 0-60 scale, and the outside mark line is provided with the conversion coefficient corresponding with the inboard mark line.