Water sample water color meter based on reduction of similar color interference

Abstract

The invention belongs to the technical field of water color measurement experimental instruments, and provides a water sample water color meter based on reduction of similar color interference, the water sample water color meter comprises a bottom tray and a top cover disc which are coaxially arranged, and the top cover disc is rotatably arranged right above the bottom tray; the bottom tray is provided with a plurality of fan-shaped hollowed-out areas and strip-shaped color grade strips which are evenly distributed at intervals in the circumferential direction, and the strip-shaped color grade strips are radially arranged at the adjacent positions of the adjacent fan-shaped hollowed-out areas. The top cover disc is provided with a fan-shaped comparison opening, and the number of circle center angles corresponding to the fan-shaped comparison opening is not larger than the number of circle center angles corresponding to the fan-shaped hollowed-out area. The water sample color meter based on reduction of similar color interference is simple in structure and convenient to use, is convenient to transport and carry compared with a traditional glass color grade tube, can shield color interference of other color grades in the use process, avoids the situation that similar color grades are difficult to judge and distinguish, and improves the detection accuracy. And the accuracy of water color measurement and the measurement discrimination efficiency are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of water color measurement experimental instruments, and particularly relates to a water sample water colorimeter based on reducing interference of similar colors. Background Art

[0002] A water colorimeter is an instrument used to measure the water color of natural waters such as oceans, lakes, reservoirs, etc. Existing water colorimeters usually include two parts: a color level tube and a display box. The color level tube is composed of 21 or 22 transparent glass tubes, and the specific number varies depending on the model. The tubes are filled with standard solutions of different colors and concentrations prepared according to the international "Forouhar" water color standard. The colors gradually change from dark blue to yellow-green and brownish-brown in a uniform manner; among them, the display box is mainly used to store and protect the color level tube, and there are various materials such as wooden boxes and metal boxes. Generally, there is shock-absorbing cotton inside to play a role of fixing and buffering to prevent the color level tube from being damaged by collision during transportation or use.

[0003] However, when using a traditional water colorimeter for measurement, there may be certain subjective differences in the observer's judgment of colors. Different people may have different color perceptions and judgments of the same water body, especially in the selection of several adjacent color level tubes. In particular, interference is extremely likely to occur during the comparison of color level tubes with similar colors. Observers often have difficulty determining which color level tube is more similar to the water color of the measured water area, resulting in deviation of the measurement results and affecting the accuracy and comparability of the data.

[0004] In addition, the liquid inside the glass tube of the existing color level tube is sensitive to light and heat. During daily storage, direct sunlight and high-temperature environments should be avoided to prevent the liquid inside the tube from fading or deteriorating, which requires a relatively high requirement for the daily storage environment; at the same time, the existing water colorimeter needs to be calibrated with standard water color at least once within 6 months to avoid fading. If fading occurs, it should be replaced in time to ensure the accuracy of the measurement. In actual use, there is often a situation of forgetting to calibrate, resulting in inaccurate measurement of the water color.

[0005] Therefore, it is necessary to design a water sample water colorimeter that can solve at least some of the above problems and defects. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a water sample water colorimeter based on reducing interference of similar colors, which has a simple structure and is convenient to use. It is easier to transport and carry compared with traditional glass color level tubes, and can shield the color interference of other color levels during use, avoiding the situation of difficult judgment and distinction of similar color levels, improving the accuracy of water color measurement and the measurement and discrimination efficiency.

[0007] The technical solution of the present invention is as follows: The present invention provides a water colorimeter for water samples based on reducing the interference of adjacent colors, including a bottom tray and a top cover plate arranged coaxially. The top cover plate is rotatably arranged directly above the bottom tray; The bottom tray is provided with a plurality of fan-shaped hollow areas and strip-shaped color levels evenly distributed at intervals along the circumferential direction. The strip-shaped color levels are radially arranged at the adjacent positions of the adjacent fan-shaped hollow areas; The top cover plate is provided with a fan-shaped comparison opening, and the central angle corresponding to the fan-shaped comparison opening is not greater than the central angle corresponding to the fan-shaped hollow area.

[0008] Preferably, a plurality of color level identification numbers are evenly distributed at intervals along the circumferential direction on the upper end surface of the outer ring edge of the bottom tray, and the color level identification numbers are arranged in one-to-one correspondence with the strip-shaped color levels.

[0009] Preferably, the bottom tray is provided with a central shaft column extending upward, and the top cover plate is provided with a central sleeve hole adapted to the central shaft column. The top cover plate is rotatably sleeved on the outer periphery of the central shaft column through the central sleeve hole; A cover is fixedly connected to the end of the central shaft column, and the top cover plate is rotatably clamped between the cover and the bottom tray.

[0010] Preferably, a plurality of tooth protrusions are evenly distributed at intervals along the circumferential direction on the outer periphery of the central shaft column, and the tooth protrusions are arranged in one-to-one correspondence with the fan-shaped hollow areas; At least one accommodating groove is arranged on the inner wall of the central sleeve hole, and a resisting block is movably embedded in the accommodating groove. The resisting block is partially clamped in the tooth gap area formed by adjacent tooth protrusions and abuts against the adjacent tooth protrusions.

[0011] Preferably, the central angle corresponding to the tooth protrusion is the same as the central angle corresponding to the fan-shaped hollow area; The length of the tooth protrusion extending outward from the central shaft column gradually increases along the circumferential direction, and the length of the resisting block extending outward from the central sleeve hole gradually decreases along the circumferential direction.

[0012] Preferably, an elastic member connected to the resisting block is arranged in the accommodating groove. One end of the elastic member abuts against the accommodating groove, and the other end abuts against the resisting block.

[0013] Preferably, the bottom tray is further provided with a plurality of clamping grooves and support strips evenly distributed at intervals along the circumferential direction. The clamping grooves and the support strips are in one-to-one correspondence and are both arranged along the radial direction of the bottom tray; The width of the clamping groove is adapted to the width of the strip-shaped color level, and the width of the support strip is not greater than the width of the strip-shaped color level.

[0014] Preferably, the top cover plate is provided with an adjusting rotating shaft parallel to its axis, and the adjusting rotating shaft is rotatably arranged at the outer edge of the top cover plate; A holding handle is arranged at the top end of the adjusting rotating shaft, and a driving gear is arranged at the bottom end. A driven ring gear is arranged on the lower end surface of the outer ring edge of the bottom tray, and the driving gear is meshed with the driven ring gear.

[0015] Preferably, the outer edge of the bottom tray is provided with a grasping handle protruding outward, and the grasping handle is fixedly connected to the bottom tray; and / or the outer edge of the top cover plate is provided with a grasping handle protruding outward, and the grasping handle is fixedly connected to the top cover plate.

[0016] Preferably, there are two grasping handles, and the two grasping handles are symmetrically arranged on both sides of the bottom tray and / or the top cover plate.

[0017] The present invention has the following advantages and effects compared with the prior art: (1) By adopting a bottom tray and a top cover plate that can rotate relative to each other, and the top cover plate is provided with a sector-shaped ratio matching opening, so that only a single strip-shaped color level bar is located in the area corresponding to the sector-shaped ratio matching opening during the water color measurement process, and the top cover plate shields the remaining strip-shaped color level bars, thereby shielding the interference of other colors, especially similar-colored strip-shaped color level bars, on the measurement comparison, and improving the accuracy and discrimination efficiency of the measurement discrimination result; (2) Using a plurality of spaced strip-shaped color level bars to replace the traditional glass color level tubes filled with solution. On the one hand, there is no need for light-proof storage, eliminating the phenomenon of deterioration and fading of the solution due to direct sunlight or high-temperature environment, improving the stability of the water colorimeter during use, reducing the requirements for the storage and placement environment, and extending the use, maintenance, and repair cycle. On the other hand, it is convenient for storage and transportation, and there will be no damage caused by collision; (3) By adopting a tooth convex and a block in a clamping fit, the bottom tray can only rotate unidirectionally relative to the top cover plate, and at the same time ensure that the strip-shaped color level bar just rotates to the position of the sector-shaped ratio matching opening during the rotation and switching process, so as to facilitate comparing the water sample to be measured with the strip-shaped color level bar through the sector-shaped ratio matching opening and the sector-shaped hollow area, without the need for manual repeated adjustment of the relative position between the strip-shaped color level bar and the sector-shaped ratio matching opening, improving the efficiency of measuring and discriminating water color and the accuracy of the measurement result. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a water sample water colorimeter based on reducing the interference of similar colors in Embodiment 1 of the present invention; Figure 2 It is an exploded structural diagram of a water sample water colorimeter based on reducing the interference of similar colors in Embodiment 1 of the present invention; Figure 3Schematic diagram of the bottom tray in the water sample water colorimeter based on reducing interference of similar colors in Embodiment 1 of the present invention; Figure 4 Explosion structure diagram of the water sample water colorimeter based on reducing interference of similar colors in Embodiment 2 of the present invention; Figure 5 For Figure 4 Enlarged structure diagram at position A in Figure 6 For Figure 4 Enlarged structure diagram at position B in Figure 7 Front view of the water sample water colorimeter based on reducing interference of similar colors in Embodiment 2 of the present invention; Figure 8 For Figure 7 Cross-sectional view at position C-C in Figure 9 For Figure 8 Enlarged structure diagram at position D in Figure 10 Schematic diagram of the water sample water colorimeter based on reducing interference of similar colors in Embodiment 3 of the present invention; Figure 11 Schematic diagram of the water sample water colorimeter based on reducing interference of similar colors in Embodiment 4 of the present invention; Figure 12 Another schematic diagram of the water sample water colorimeter based on reducing interference of similar colors in Embodiment 4 of the present invention.

[0019] Reference numerals: 1, bottom tray; 11, fan-shaped hollow area; 12, color level identification number; 13, central axis column; 131, tooth protrusion; 14, clamping groove; 15, support bar; 16, driven ring gear; 2, top cover plate; 21, fan-shaped matching port; 22, central sleeve hole; 221, accommodating groove; 222, abutting block; 223, elastic member; 3, strip-shaped color level bar; 4, cover; 5, adjusting rotating shaft; 51, holding handle; 52, driving gear; 6, grasping handle. Detailed implementation manners

[0020] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described below in conjunction with specific implementation manners. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Embodiment 1: As Figures 1 to 3As shown in the figure, the present invention provides a water colorimeter for water samples based on reducing the interference of similar colors, which includes a bottom tray 1 and a top cover plate 2 arranged coaxially. The top cover plate 2 is rotatably arranged directly above the bottom tray 1. Specifically, a central shaft column 13 extending upward is provided at the center of the bottom tray 1, and a central sleeve hole 22 adapted to the central shaft column 13 is provided at the center of the top cover plate 2. The top cover plate 2 is rotatably sleeved on the outer periphery of the central shaft column 13 through the central sleeve hole 22.

[0022] The bottom tray 1 is provided with a plurality of fan-shaped hollow areas 11 and strip-shaped color level bars 3 evenly spaced along the circumferential direction. The strip-shaped color level bars 3 are radially arranged at the adjacent interval positions of the adjacent fan-shaped hollow areas 11. Specifically, the bottom tray 1 is provided with 22 (or 21) fan-shaped hollow areas 11 and strip-shaped color level bars 3, and 22 (or 21) standard colors are specifically configured according to the international "Forel" water color standard.

[0023] The top cover plate 2 is provided with a fan-shaped comparison opening 21, and the central angle corresponding to the fan-shaped comparison opening 21 is not greater than the central angle corresponding to the fan-shaped hollow area 11, so that only one strip-shaped color level bar 3 located within the fan-shaped comparison opening 21 during the water color comparison process, thereby realizing single-color comparison and reducing the interference of similar color levels. For specific reference, please refer to Figure 1 the content shown. It should be noted that the radial length of the fan-shaped comparison opening 21 is not less than the radial length of the fan-shaped hollow area 11. Preferably, the central angle corresponding to the fan-shaped comparison opening 21 is equal to the central angle corresponding to the fan-shaped hollow area 11, and the radial length of the fan-shaped comparison opening 21 is greater than the radial length of the fan-shaped hollow area 11, that is, the area of the fan-shaped comparison opening is greater than the area of the fan-shaped hollow area 11, ensuring that only one strip-shaped color level bar 3 is located within the area of the fan-shaped comparison opening 21 while increasing the comparison area for observing the water sample through the fan-shaped hollow area 11.

[0024] Furthermore, in combination with Figure 2 and Figure 3 shown, a plurality of color level identification numbers 12 (1-22) evenly spaced along the circumferential direction are also provided on the upper end surface of the outer ring of the bottom tray 1. The color level identification numbers 12 are arranged in one-to-one correspondence with the strip-shaped color level bars 3.

[0025] Optionally, in some embodiments, the top cover plate 2 is provided with a flip cover (not shown in the figure) movably connected thereto. The flip cover is arranged at the fan-shaped comparison opening 21 and is adapted to the fan-shaped comparison opening 21 to protect the strip-shaped color level bar 3 located below it. Specifically, the flip cover is a cover body made of an opaque material.

[0026] Optionally, in some embodiments, the bottom tray 1 is provided with 23 sector-shaped hollow areas 11, where the strip-shaped color level bars 3 and the color level identification numbers 12 are arranged in one-to-one correspondence with 22 of the sector-shaped hollow areas 11, and the remaining one sector-shaped hollow area 11 is not provided with a strip-shaped color level bar 3. In the non-use state, the sector-shaped hollow area 11 without the strip-shaped color level bar 3 is rotated to the position of the sector-shaped mating opening 21, ensuring that the strip-shaped color level bars 3 are all covered by the top cover plate 2 for protection.

[0027] A cover 4 fixedly connected thereto is provided at the end of the central axis column 13. The top cover plate 2 is rotatably clamped between the cover 4 and the bottom tray 1. Further, the cover 4 is detachably connected to the end of the central axis column 13. Specifically, in this embodiment, the cover 4 is threadedly connected to the central axis column 13, facilitating the disassembly of the cover 4 and the top cover plate 2, thereby conveniently replacing or cleaning the strip-shaped color level bars 3 and reducing the difficulty of maintaining the water color meter.

[0028] Further, as shown in Figure 3 the content, the bottom tray 1 is further provided with a plurality of clamping grooves 14 and support bars 15 that are evenly spaced along the circumferential direction. The clamping grooves 14 and the support bars 15 are arranged in one-to-one correspondence and are both arranged radially along the bottom tray 1. The width of the clamping groove 14 is adapted to the width of the strip-shaped color level bar 3, and the width of the support bar 15 is not greater than the width of the strip-shaped color level bar 3, so that part of the strip-shaped color level bar 3 is embedded in the clamping groove 14 and part is fixedly laid above the support bar 15. It should be noted that to ensure the placement stability of the strip-shaped color level bar 3, it can be fixed on the support bar 15 by pasting. At the same time, if the color of the strip-shaped color level bar 3 fades or becomes distorted after long-term use, a new strip-shaped color level bar 3 can be directly replaced.

[0029] Optionally, in some embodiments, the bottom tray 1 and the top cover plate 2 can be specifically disk bodies made of white high molecular polyethylene material, thereby reducing the interference with water color measurement and discrimination. The strip-shaped color level bar 3 can be specifically a color level bar made of PET material, and its color is set according to the standard color.

[0030] During use, the experimenter holds the top cover plate 2 and the bottom tray 1 of the water color meter (grasping the edge of the top cover plate 2), and aligns the sector-shaped mating opening 21 of the top cover plate 2 with the water sample of the water area to be measured. The experimenter rotates the bottom tray 1 relative to the top cover plate 2 by hand. Since the distance between adjacent strip-shaped color level bars 3 is one sector-shaped hollow area 11, only one strip-shaped color level bar 3 will appear in the sector-shaped mating opening 21 (ignoring the influence of the width of the strip-shaped color level bar 3 here). The experimenter observes the color of the strip-shaped color level bar 3 and the water sample of the water area to be measured through the sector-shaped mating opening 21 and the sector-shaped hollow area 11 until the strip-shaped color level bar 3 with the closest color to the water sample of the water area to be measured is found, and the corresponding color level identification number 12 is recorded.

[0031] Embodiment 2: For Embodiment 2 of the present invention, Figures 4 to 9 is described. In addition, parts that are not different from Embodiment 1 are omitted from the description and are given the same reference numerals.

[0032] As Figures 4 to 9 shown, the water colorimeter for water samples based on reducing interference of adjacent colors according to the present invention, wherein a plurality of tooth protrusions 131 are uniformly and spacedly distributed along the circumferential direction on the outer periphery of the central shaft column 13, and the plurality of tooth protrusions 131 are arranged in one-to-one correspondence with a plurality of sector-shaped hollow areas 11, that is, 22 (or 21) tooth protrusions 131 are provided on the outer periphery of the central shaft column 13. Further, in combination with Figure 6 and Figure 9 shown, the central angle corresponding to the tooth protrusion 131 is the same as the central angle corresponding to the sector-shaped hollow area 11, and the length of the tooth protrusion 131 extending outward relative to the central shaft column 13 gradually increases along the circumferential direction, that is, the outward extending end of the tooth protrusion 131 is a unidirectionally inclined tip.

[0033] In combination with Figure 5 and Figure 9 shown in the content, a receiving groove 221 is provided on the inner wall of the central sleeve hole 22 and a blocking block 222 movably embedded in the receiving groove 221. Further, a plurality of receiving grooves 221 and blocking blocks 222 are provided along the circumferential direction. Specifically, in this embodiment, two receiving grooves 221 and blocking blocks 222 are provided and are symmetrically distributed about the center. Referring to Figure 9 shown, part of the blocking block 222 is stuck in the tooth space area formed between adjacent tooth protrusions 131 and abuts against the adjacent tooth protrusions 131. The length of the blocking block 222 extending outward relative to the central sleeve hole 22 gradually decreases along the circumferential direction, that is, the outward extending end of the blocking block 222 is also a unidirectionally inclined tip adapted to the tooth protrusion 131, so as to realize the one-way rotation of the top cover plate 2 and the bottom tray 1. For example, in this embodiment, the bottom tray 1 can only rotate counterclockwise relative to the top cover plate 2 and cannot rotate clockwise. Specifically, reference can be made to Figure 8 shown in the content.

[0034] As Figure 9As shown, an elastic member 223 connected to the abutting block 222 is disposed in the accommodating groove 221. The elastic member 223 can specifically be a spring or an elastic sheet. One end of the elastic member 223 abuts against the accommodating groove 221, and the other end abuts against the abutting block 222, so that under the action of the elastic member 223 in the normal state, the abutting block 222 extends outwards from the accommodating groove 221 and is clamped in the tooth gap area formed by adjacent tooth protrusions 131. When an external force is applied manually to relatively rotate the top cover plate 2 and the bottom tray 1, the inclined tip of the tooth protrusion 131 presses against the abutting block 222, and the abutting block 222 gradually retracts into the accommodating groove 221 and compresses the elastic member 223. When it rotates to the next adjacent tooth gap area, the abutting block 222 extends outwards again under the restoring elastic force of the elastic member 223 and abuts against the tooth protrusion 131, thereby avoiding reverse rotation and facilitating the precise adjustment of the relative position of the strip-shaped color level bar 3 and the sector-shaped ratio matching port 21.

[0035] Reference Figure 8 As shown in the content, specifically in this embodiment, when the abutting block 222 is located in the tooth gap area formed by adjacent tooth protrusions 131, the sector-shaped ratio matching port 21 is aligned with the sector-shaped hollow area 11, and the strip-shaped color level bar 3 is located in the central position area of the sector-shaped hollow area 11 and the sector-shaped ratio matching port 21, so that there is no need for the experimenter to repeatedly rotate and adjust the position of the strip-shaped color level bar 3 within the sector-shaped ratio matching port 21 area.

[0036] Embodiment 3: For Embodiment 3 of the present invention, use Figure 10 to illustrate. In addition, parts that are not different from Embodiment 2 are omitted from the description and given the same reference numerals.

[0037] As Figure 10 shown, the water sample water colorimeter based on reducing interference of similar colors involved in the present invention, wherein, a grasping handle 6 extending outwards is disposed on the outer edge of the top cover plate 2. The grasping handle 6 is fixedly connected to the top cover plate 2. There are two grasping handles 6, and the two grasping handles 6 are symmetrically arranged on both sides of the top cover plate 2, so as to facilitate the experimenter's grasping.

[0038] Furthermore, the two grasping handles 6 are symmetrically arranged about the sector-shaped ratio matching port 21 left and right.

[0039] Optionally, in some embodiments, a grasping handle (not shown in the figure) extending outwards is disposed on the outer edge of the bottom tray 1. The grasping handle is fixedly connected to the bottom tray 1.

[0040] Embodiment 4: For Embodiment 4 of the present invention, use Figure 11 and Figure 12 to illustrate. In addition, parts that are not different from Embodiment 2 are omitted from the description and given the same reference numerals.

[0041] AsFigure 11 , Figure 12 As shown, the water colorimeter for water samples based on reducing the interference of similar colors according to the present invention has a gripping handle 6 fixedly connected to one outer edge of the top cover plate 2, and an adjusting rotating shaft 5 parallel to its axis is provided on the other outer edge. It should be noted that the number and position of the gripping handle 6 and the adjusting rotating shaft 5 can be specifically set according to actual needs. In this embodiment, only one gripping handle 6 and one adjusting rotating shaft 5 are shown for the convenience of clear description.

[0042] Refer to Figure 12 As shown, the adjusting rotating shaft 5 is rotatably arranged on the outer edge of the top cover plate 2. A gripping handle 51 is provided at the top end of the adjusting rotating shaft 5, and a driving gear 52 is provided at the bottom end. A driven ring gear 16 is provided on the lower end surface of the outer ring of the bottom tray 1. The driving gear 52 is meshed with the driven ring gear 16, so that by rotating the adjusting rotating shaft 5, the driving gear 52 is driven to rotate, thereby driving the driven ring gear 16 and the bottom tray 1 to rotate accordingly, and further realizing the rotational transformation of the strip-shaped color level bar 3 at the position of the sector ratio matching port 21. The experimenter does not need to dial the bottom tray 1, thus avoiding the contact between the hand and the bottom tray 1 and the strip-shaped color level bar 3.

[0043] Experimental example: Water sample samples with known color level numbers were selected for measurement experiments. There were 7 experimenters (all experimenters were technicians in water quality detection in the field of environmental monitoring, and had at least 1 year of work experience and passed the work permit assessment for water color monitoring projects). Among them, in order to avoid the same experimenter having measurement discrimination memory for the retention of water sample samples during the measurement process, different water sample samples were used for measurement experiments on the traditional water colorimeter, Example 1, Example 2, Example 3, and Example 4 respectively. Specifically, the color level number of the water sample sample corresponding to the traditional water colorimeter was 5 (denoted as 5 # ), the color level number of the water sample sample corresponding to Example 1 was 8 (denoted as 8 # ), the color level number of the water sample sample corresponding to Example 2 was 11 (denoted as 11 # ), the color level number of the water sample sample corresponding to Example 3 was 14 (denoted as 14 # ), and the color level number of the water sample sample corresponding to Example 4 was 17 (denoted as 17 # ).

[0044] Record the measurement discrimination results (color level numbers) and the time required for measurement discrimination (unit: second) of all experimenters, as shown in the following table: Table 1: Measurement discrimination results of water sample samples by different experimenters using different water colorimeters

[0045] Note: "#" represents the color level number; the number of difference results represents the number of measurement results obtained by different experimenters that are different from the color level number of the water sample to be measured. For example, through a traditional water colorimeter, 6 # , 7 # , 8 # A total of four different measurement results were obtained. Therefore, the number of difference results is recorded as 4; in Example 1, 7 # , 9 # A total of two different results were obtained, and the number of difference results is recorded as 2; in Example 2, 10 # A total of two different results were obtained, and the number of difference results is recorded as 2.

[0046] Table 2: Time (s) required for different experimenters to measure and discriminate using different water colorimeters

[0047] It can be seen from the above experimental results that: (1) Combining the content of Table 1, it can be seen that compared with the traditional water colorimeter, the water colorimeter provided by the embodiments of the present invention has been improved to a certain extent in terms of the consistency of measurement and discrimination results. Due to the interference of similar color levels in the traditional water colorimeter, the measurement results are quite different and there are many difference results. This is because: on the one hand, the color of the water body is quite close to that of the water colorimeter with two adjacent color levels, making it difficult to judge itself; on the other hand, when experimenters observe different water colorimeters and water samples for a long time, visual fatigue is also likely to occur, and it is often uncertain which water colorimeter the water sample is closer to, resulting in multiple results. However, when using the water colorimeters provided in Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4 of the present invention, the consistency of measurement and discrimination results has been improved, the occurrence of difference results has been reduced, and the accuracy of measurement and discrimination has also been improved. This is because when using the water colorimeter of the present invention, the water sample can be placed in the hollow of the bottom tray and placed side by side with different color level strips. During the comparison, only the water sample needs to be compared with the color level strips one by one, and the visual interference of other adjacent color level numbers is shielded during the comparison process, making it easier to accurately judge.

[0048] (2) Combining the content of Table 2, it can be seen that compared with the traditional water colorimeter, the average time required for measurement and discrimination using the water colorimeter provided in Embodiment 1 of the present invention is reduced by nearly 13 s, and the overall measurement and discrimination efficiency is increased by 15.6%. The water colorimeter provided in Embodiment 2 improves the operation convenience, further reduces the time required for measurement and discrimination, and the average measurement and discrimination time is reduced by 25 s compared with the traditional water colorimeter, and the overall measurement and discrimination efficiency is increased by 31%. However, Embodiment 3 and Embodiment 4 only have a small improvement compared with Embodiment 2, and the time required for measurement and discrimination is quite similar to that of Embodiment 2.

[0049] In summary, the water colorimeter for water samples based on reducing interference from similar colors provided by the present invention has a simple structure and is convenient to use. It is easier to transport and carry compared to traditional glass color grade tubes, and during use, it can shield the color interference of other color grades, avoiding the situation where it is difficult to judge and distinguish similar color grades, improving the accuracy of water color measurement and the measurement and discrimination efficiency.

[0050] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent changes and modifications made according to the scope of the present invention should still fall within the scope covered by the present invention.

Claims

1. A water sample colorimeter based on reducing interference between similar colors, characterized by: It comprises a coaxially arranged bottom tray (1) and a top cover tray (2), wherein the top cover tray (2) is rotatably arranged directly above the bottom tray (1); The bottom tray (1) is provided with a plurality of fan-shaped hollow areas (11) and strip-shaped color grading strips (3) evenly spaced along the circumferential direction, and the strip-shaped color grading strips (3) are radially arranged at adjacent positions of the adjacent fan-shaped hollow areas (11); The top cover plate (2) is provided with a sector-shaped comparison opening (21), and the degree of the center angle corresponding to the sector-shaped comparison opening (21) is not greater than the degree of the center angle corresponding to the sector-shaped hollow area (11).

2. The water sample colorimeter based on reducing interference of similar colors according to claim 1, characterized in that: A plurality of color grade identification numbers (12) are arranged along the upper end surface of the outer ring of the bottom tray (1) and are evenly spaced along the circumferential direction, and the color grade identification numbers (12) are arranged in a one-to-one correspondence with the strip-shaped color grade strips (3).

3. The water sample colorimeter based on reducing interference of similar colors according to claim 1, characterized in that: The bottom tray (1) is provided with a central shaft column (13) extending upward, and the top cover plate (2) is provided with a central sleeve hole (22) adapted to the central shaft column (13), and the top cover plate (2) is rotatably sleeved on the outer periphery of the central shaft column (13) through the central sleeve hole (22); The end of the central shaft column (13) is provided with a cover (4) fixedly connected thereto, and the top cover plate (2) is rotatably clamped between the cover (4) and the bottom tray (1).

4. The water sample colorimeter based on reducing interference of similar colors according to claim 3, characterized in that: The outer circumference of the central shaft column (13) is provided with a plurality of tooth protrusions (131) evenly spaced along the circumferential direction, and the tooth protrusions (131) are arranged in a one-to-one correspondence with the fan-shaped hollow areas (11); The inner wall of the central sleeve hole (22) is provided with at least one accommodating groove (221) and a stopper (222) movably embedded in the accommodating groove (221); the stopper (222) is partially embedded in an inter-tooth area formed by adjacent tooth protrusions (131) and abuts against the adjacent tooth protrusions (131).

5. The water sample colorimeter based on reducing interference of similar colors according to claim 4, characterized in that: The degree of the center angle of the tooth protrusion (131) is the same as the degree of the center angle of the fan-shaped hollow area (11); The length of the tooth protrusion (131) extending outwards compared to the central shaft column (13) gradually increases along the annular direction, and the length of the stop block (222) extending outwards compared to the central sleeve hole (22) gradually decreases along the annular direction.

6. The water sample colorimeter based on reducing interference of similar colors according to claim 4, characterized in that: An elastic member (223) connected to the abutment block (222) is disposed in the accommodating groove (221); one end of the elastic member (223) abuts against the accommodating groove (221), and the other end abuts against the abutment block (222).

7. The water sample colorimeter based on reducing interference of similar colors according to claim 1, characterized in that: The bottom tray (1) is further provided with a plurality of locking grooves (14) and support bars (15) evenly spaced along the circumferential direction, wherein the locking grooves (14) and the support bars (15) correspond to each other one by one and are arranged along the radial direction of the bottom tray (1); The width of the locking groove (14) is matched to the width of the strip-shaped color grading strip (3), and the width of the supporting strip (15) is not greater than the width of the strip-shaped color grading strip (3).

8. The water sample colorimeter based on reducing interference of similar colors according to claim 1, characterized in that: The top cover plate (2) is provided with an adjustment shaft (5) parallel to its axis, and the adjustment shaft (5) is rotatably arranged on the outer edge of the top cover plate (2); The top end of the adjusting shaft (5) is provided with a gripping handle (51), and the bottom end is provided with a driving gear (52); the outer ring of the bottom tray (1) is provided with driven ring teeth (16) along the lower end surface, and the driving gear (52) is meshingly connected with the driven ring teeth (16).

9. The water sample colorimeter based on reducing interference of similar colors according to claim 1, characterized in that: The outer edge of the bottom tray (1) is provided with a gripping handle (6) extending outwards, and the gripping handle (6) is fixedly connected to the bottom tray (1); And / or the outer edge of the top cover plate (2) is provided with a gripping handle (6) extending outwards, and the gripping handle (6) is fixedly connected to the top cover plate (2).

10. The water sample colorimeter based on reducing interference of similar colors according to claim 9, characterized in that: Two gripping handles (6) are provided, and the two gripping handles (6) are symmetrically arranged on both sides of the bottom tray (1) and / or the top cover tray (2).

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