Visual turbidimetric apparatus and measurement method therefor

Abstract

The present invention relates to the technical field of liquid turbidity measurement, and provides a visual turbidimetric apparatus and a measurement method therefor. The visual turbidimetric apparatus comprises an observation box, an observation assembly, and a lighting assembly. The observation box comprises a box body, an observation space is provided within the box body, and an observation window is provided on at least one side of the box body. At least one side of the box body is detachable to form an opening used to place and retrieve a measurement sample. The observation assembly comprises a first base and a first rotating shaft. A first end of the first rotating shaft is rotatably connected to a bottom wall of the box body, the first base is fixedly connected onto a shaft body of the first rotating shaft, and a second end of the first rotating shaft extends out of a top wall of the observation box. The first base is used to place a measurement sample, and the observation window faces an observation position. The lighting assembly is used to illuminate the measurement sample at the observation position, and is disposed on an inner wall of the observation box. By means of rotating the first rotating shaft, switching of different measurement samples at the observation position can be achieved, thereby improving the efficiency of sample measurement.

Description

Visual turbidimetric detection device and detection method thereof Technical Field

[0001] The present invention relates to the technical field of liquid turbidity detection, and in particular to a visual turbidimetric detection device and a detection method thereof. Background Art

[0002] Turbidity, also known as turbidity, is a measure of the reduced transparency of a liquid due to the presence of substances in the water that scatter or absorb light. Turbidity or clarity testing is a method of inspecting the presence of cloudiness or foreign matter in a test liquid. This is primarily done using a turbidimeter and visual inspection by the inspector. Visual turbidimetry involves visually observing and comparing the turbidity of liquids. In some practical applications, visual inspection of turbidity is essential because it is necessary to determine differences in turbidity between solutions, including complex factors such as turbidity, particle size, shape, quantity, and surface reflectivity.

[0003] In existing visual turbidimetry methods, inspectors typically compare samples directly with prepared standard solutions of varying turbidity gradients in a natural environment, or inspect liquids for turbidity or suspended foreign matter under transmitted light from an incandescent lamp. However, both methods are susceptible to subjective operator judgment and environmental fluctuations, leading to the overlooking of smaller particles or slight turbidity. Furthermore, traditional light inspection devices operate in a single loading and unloading mode when inspecting bottled liquids, resulting in low efficiency and prone to visual fatigue after prolonged viewing.

[0004] In order to reduce the inspection errors caused by environmental factors and subjective judgment, providing inspectors with a stable and simple environment in which they can easily detect turbidity differences to observe the solution is a problem that needs to be solved at present.

[0005] Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a visual turbidimetric detection device with a simple structure, good visual detection effect of liquid turbidity, and high detection efficiency.

[0007] The invention also provides a detection method of the visual turbidimetric detection device.

[0008] A first embodiment of the present invention provides a visual turbidimetric detection device, comprising:

[0009] An observation box, comprising a box body, an observation space provided in the box body, an observation window provided on at least one side of the box body, and at least one side of the box body being detachable to form an opening for taking in and placing a sample to be tested;

[0010] The observation assembly includes a first base and a first rotating shaft, wherein the first end of the first rotating shaft is rotatably connected to the bottom wall of the box body, the shaft of the first rotating shaft is fixedly connected to the first base, and the second end of the first rotating shaft extends out of the top wall of the observation box. The first base is used to place the sample to be tested, and the second end is driven to rotate by an external force to drive the first base to rotate, so that the sample to be tested is rotated to an observation position, and the observation window faces the observation position;

[0011] A lighting assembly is used to illuminate the sample to be tested located at the observation position, and the lighting assembly is arranged on the inner wall of the observation box.

[0012] According to an embodiment provided by the present invention, a plurality of lighting components are provided, and at least one of the lighting components is a full-spectrum LED spotlight group.

[0013] According to an embodiment provided by the present invention, the light emission directions of the plurality of light assemblies intersect at the observation position; and / or the axis of the observation window, the plurality of light assemblies and the observation position are at the same height.

[0014] According to an embodiment provided by the present invention, the observation assembly also includes a plurality of detection units, the detection unit including a second rotating shaft and a second base, the second base is rotatably connected to the top of the first base, the third end of the second rotating shaft is fixedly connected to the second base, and the second rotating shaft is driven to rotate by external force to drive the second base to rotate on the first base; the fourth end of the second rotating shaft extends out of the observation box, and the second base is provided with a limiting groove for placing the sample to be tested, and a plurality of limiting grooves are provided, and the plurality of limiting grooves are arranged in a ring with the second rotating shaft as the center line; and / or, a plurality of detection units are provided, and the plurality of second rotating shafts are arranged in a ring with the first rotating shaft as the center line.

[0015] According to an embodiment provided by the present invention, the detection unit further includes a background plate, the background plate is arranged between the limiting groove and the second rotating shaft, and the background plate is fixedly connected to the second base;

[0016] And / or, a plurality of the background plates are provided, the background plates are provided in one-to-one correspondence with the limiting grooves, and the plurality of the background plates surround an installation space for the second rotating shaft.

[0017] According to an embodiment provided by the present invention, the background board is a white background board, and the background board is provided with a plurality of black lines.

[0018] According to an embodiment provided by the present invention, it also includes a light-shielding plate, the first rotating shaft and the second rotating shaft are rotatably connected to the light-shielding plate, the second end is passed through the first connecting hole of the box body, and the fourth end is passed through the second connecting hole of the box body, and the area of ​​the light-shielding plate covers the first connecting hole and the second connecting hole; and / or, the observation box, the light-shielding plate and the observation assembly are all light-proof structures.

[0019] The present invention provides a second embodiment, including a detection method of the visual turbidimetric detection device as described in the above embodiment, comprising:

[0020] Opening the box to form an opening;

[0021] placing the sample to be tested on the first base through the opening;

[0022] closing the opening;

[0023] Observe through the observation window whether the interior of the box is in a dark environment;

[0024] Turn on the lighting component;

[0025] Rotating the first rotating shaft to drive the sample to be tested to rotate via the first base, so that the sample to be tested moves to the observation position;

[0026] The sample to be tested is observed through the observation window.

[0027] According to an embodiment provided by the present invention, placing the sample to be tested on the first base through the opening includes the following steps:

[0028] The sample to be tested is placed in the limiting groove of the second base.

[0029] According to an embodiment provided by the present invention, rotating the first rotating shaft to drive the sample to be tested to rotate through the first base so that the sample to be tested moves to the observation position includes the following steps:

[0030] Rotating the first rotating shaft to drive the second base to rotate about the first rotating shaft as a center line through the first base, so that the second base is located at the observation position;

[0031] The second rotating shaft is rotated to drive the second base to rotate via the second rotating shaft, so that the sample to be tested is located at an observation position.

[0032] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0033] An embodiment of the present invention provides a visual turbidimetric detection device, wherein an observation space is provided in the observation box, and a sample to be tested can be placed in the box for observation. The box can provide a stable observation environment for the sample to be tested, and prevent the influence of external natural light or other light on the observation of the turbidity of the liquid. Among them, the lighting component is provided on the inner wall of the box, and can provide a stable light source for the detection of the sample to be tested, and avoid errors in visual detection caused by visual fatigue of the detection personnel. The sample to be tested can be placed on the first base, and the sample to be tested can be rotated to the observation position by rotating the first rotating shaft. At the observation position, the sample to be tested can be observed through the observation window, and the adjustment method of the position of the sample to be tested is simple. When a plurality of samples to be tested are placed on the first base, the different samples to be tested can be switched in the observation position by rotating the first rotating shaft, so that the turbidity of a plurality of samples to be tested can be detected in one detection, thereby improving the detection efficiency of the samples to be tested.

[0034] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted, and the advantages brought about by the technical solutions with these technical features described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] FIG1 is a perspective view of a visual turbidimetric detection device provided in an embodiment of the present invention;

[0037] FIG2 is a top view of a visual turbidimetric detection device provided in an embodiment of the present invention;

[0038] FIG3 is a side view of a visual turbidimetric detection device provided in an embodiment of the present invention;

[0039] FIG4 is a rear side view of a visual turbidimetric detection device provided in an embodiment of the present invention;

[0040] FIG5 is a schematic structural diagram of an observation assembly provided in an embodiment of the present invention;

[0041] FIG6 is a schematic structural diagram of a background plate provided in an embodiment of the present invention;

[0042] FIG7 is a schematic structural diagram of a second rotating shaft 5, a second base and a sample to be tested provided in an embodiment of the present invention;

[0043] Figure numerals: 1. Box body; 2. Rear wall panel; 3. Shading plate; 4. Background plate; 5. Second rotating shaft 5; 6. Force-applying part; 7. Second base; 8. Limiting groove; 9. Rotating bearing; 10. First base; 11. Loose nut; 12. First rotating shaft; 13. Limiting bearing; 14. Black line; 15. Lighting assembly; 16. Observation window; 17. Fitting part; 18. Clamping part; 19. Sample to be tested. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0046] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0047] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0048] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0049] The following describes a visual turbidimetric detection device according to a first embodiment of the present invention with reference to FIG1 to FIG7 .

[0050] 1 , the present invention provides a visual turbidimetric detection device according to a first embodiment, comprising an observation box, an observation assembly, and a lighting assembly 15 .

[0051] The observation box includes a housing 1, which defines an observation space. An observation window 16 is provided on at least one side of the housing 1. At least one side of the housing 1 is removable to form an opening for accessing a sample 19. The observation assembly includes a first base 10 and a first rotating shaft 12. The first end of the first rotating shaft 12 is fixedly connected to the first base 10, and the second end of the first rotating shaft 12 extends out of the observation box. The first base 10 is used to place the sample 19. The second end is driven by an external force to rotate the first base 10, causing the sample 19 to rotate to an observation position facing the observation window 16. A lighting assembly 15 is provided on the inner wall of the observation box to illuminate the sample 19.

[0052] An embodiment of the present invention provides a visual turbidimetric detection device. An observation space is provided in the box body 1 of the observation box, and a sample 19 to be tested can be placed in the box body 1 for observation. The box body 1 can provide a stable observation environment for the sample 19 to be tested, preventing external natural light or other light from affecting the observation of liquid turbidity.

[0053] The lighting assembly 15 is mounted on the inner wall of the housing 1 and provides a stable light source for testing the sample 19. The lighting assembly 15 provides uniform illumination, facilitating clearer observation of the turbidity of the sample 19, thereby preventing visual inspection errors caused by visual fatigue. The sample 19 can be placed on the first base 10 and rotated to an observation position by rotating the first rotating shaft 12. From this position, the sample can be observed through the observation window 16. Adjusting the position of the sample 19 is simple.

[0054] When multiple samples 19 are placed on the first base 10, the observation positions of different samples 19 can be switched by rotating the first rotating shaft 12, so that the turbidity of multiple samples 19 can be detected in one test, thereby improving the detection efficiency of the samples 19. Of course, it is also possible to place only one sample 19 in the box 1 to improve the observation effect of the sample 19.

[0055] In this embodiment, an observation window 16 is provided on at least one side of the housing 1. It is understood that, in the observation position, the light assembly 15 emits light in a direction that can illuminate the sample 19 to be tested, which is located at the observation position. The inspector can observe the turbidity of the sample 19 illuminated by the light through the observation window 16. It can also be understood that the observation window 16 is positioned so that the light assembly 15 can illuminate the sample 19 to be tested.

[0056] It is understood that when observing the turbidity of the sample 19 to be tested, the box 1 can provide a relatively closed observation space for observing the sample 19 to be tested, thereby preventing the influence of external light sources or other light sources on the detection of the sample 19 to be tested. Relatively closed can be understood as the box 1 separating the observation component from the external environment, but not completely closed, and the tester can still observe the sample 19 to be tested through the observation window 16.

[0057] In conjunction with Figure 1, taking the observation position being set at the front side as an example, correspondingly, the observation window 16 can be provided on one side of the box body 1 with an observation window 16, and the observation window 16 can be provided on the front side, left side, back side, or top side of the box body 1. The observation window 16 can be provided on both sides of the box body 1, and the two sides can be the front side and the left side, the front side and the back side, the left side and the right side, etc. Of course, the observation window 16 can also be provided on three sides of the box body 1, such as the front side, the left side, and the right side. Providing observation windows 16 on different sides of the box body 1 allows the sample to be tested 19 to be observed from different angles, thereby improving the detection effect and detection quality of the sample to be tested 19. In this embodiment, the observation window 16 only needs to be able to observe the observation position, and the number and position of the observation windows 16 can be set according to actual needs and are not limited here. Of course, the observation position can be provided on the front side, or on the back side, the left side, the right side, etc. Correspondingly, the observation window 16 can be provided on the side where the observation position can be observed.

[0058] It should be noted that when only one observation window 16 is provided, when the inspector observes through the observation window 16, the inspector can achieve a sealing effect with the observation window 16, that is, the inspector can cover the area of ​​the observation window 16, thereby preventing external light sources from entering the observation space through the observation window 16, thereby improving the detection effect of liquid turbidity. When multiple observation windows 16 are provided, the multiple observation windows 16 are provided with window covers, and the window covers are detachably connected to the observation windows 16 to achieve switching of the observation windows 16 between an open state and a closed state. In the open state, the inspector can observe the turbidity of the sample 19 to be tested through the observation window 16; in the closed state, the area of ​​the cover covers the area of ​​the observation window 16, preventing external light sources from entering the observation space through the observation window 16 and affecting the observation.

[0059] At least one side of the box body 1 is removable to form an opening for taking and placing the sample to be tested 19. The removable opening may be formed on one side of the box body 1. Referring to FIG1 , the removable opening may be formed on the rear side of the box body 1. Alternatively, the removable opening may be formed on the front, left, or right side. Alternatively, both sides of the box body 1 may be removable to form an opening. Removable sides of the box body 1 provide a larger opening area, thereby increasing the operating space for taking and placing the sample to be tested 19 and thereby improving the efficiency of loading and unloading the sample to be tested 19, i.e., the efficiency of taking and placing the sample to be tested 19. Of course, the removable opening may be formed on three sides of the box body 1. The arrangement of the openings can be set according to actual needs and is not limited here.

[0060] It should be noted that the side where the observation window 16 is located and the detachable side of the box body 1 are preferably located. The side where the observation window 16 is located can be the opposite side to the detachable side of the box body 1. In conjunction with Figure 1, when the observation window 16 is set on the front side, the rear side of the box body 1 can be detachable to form an opening. Of course, the side where the observation window 16 is located and the detachable side of the box body 1 can also be the same side, which is convenient for taking, placing and observing the sample 19 to be tested in the same direction. Of course, the side where the observation window 16 is located and the detachable side of the box body 1 can also be adjacent sides. The side where the observation window 16 is located and the detachable side of the box body 1 can be set according to needs and are not limited here.

[0061] Preferably, the cross-sectional area of ​​the observation window 16 gradually increases in the direction approaching the observation space, which can improve the degree of light transmittance, help increase the amount of light entering the observation window 16, thereby improving the clarity of observation, and thus improving the quality and effect of observation.

[0062] As shown in Figures 1 and 2 , the rear wall 2 of the box body 1 is removably connected to the right wall 1. A mating portion 17 is provided on the right wall 1, and correspondingly, a snap-fit ​​portion 18 is provided on the rear wall 2. When the rear wall 2 closes its opening, the snap-fit ​​portion 18 snaps into the mating portion 17 to connect the rear wall 2 and the right wall. Of course, the rear wall 2 and the right wall are not limited to snap-fit ​​connections. That is, the removable connection of at least one side of the box body 1 can be at least one of a snap-fit ​​connection, a plug-in connection, a threaded connection, or a spring clamp.

[0063] Regarding the light assembly 15 , the light assembly 15 is used to illuminate the sample 19 to be measured located at the observation position.

[0064] The lighting assembly 15 can be set on the same side as the observation window 16. Combined with Figure 1, the lighting assembly 15 and the observation window 16 are both set on the front side of the box 1, and the lighting assembly 15 is set on the inner wall of the box 1. Setting the lighting assembly 15 and the observation window 16 on the same side can ensure that the direction of light illumination is the same as the line of sight of the inspector (the same can be understood as both are from the front side of the box 1 to the observation position), which helps to reduce the generation of shadows, while ensuring that the surface of the sample to be tested 19 is evenly illuminated, thereby improving the accuracy of observation.

[0065] The lighting assembly 15 can also be set on the adjacent side to the observation window 16. Combined with Figure 3, the observation window 16 is set on the left and right sides of the box body 1. Of course, the lighting assembly 15 can also be set on the upper side of the box body 1 to achieve illumination of the sample to be tested 19 at different angles. By illuminating the sample to be tested 19 from different angles, it helps to reduce or avoid possible shadows on the sample, further improve the reliability of observation, and make it easier for testers to observe changes in the turbidity of the sample to be tested 19.

[0066] The lighting assembly 15 can also be set on the same side or adjacent side as the observation window 16. Combined with Figure 1, the observation window 16 is set on the front side, and the lighting assembly 15 is set on the front side, left side and right side, which can effectively improve the observation of turbidity differences of the sample 19 to be tested.

[0067] It should be noted that a single light assembly 15 can be provided to cover the sample 19 at the observation position. Multiple light assemblies 15 can also be provided to illuminate the sample 19 at different angles to improve the observation effect.

[0068] Preferably, a plurality of lighting components 15 are provided, and at least one lighting component 15 is a full-spectrum LED spotlight group. The full-spectrum LED spotlight group can achieve full spectrum coverage and can provide different colors of light (such as red light, blue light) to meet different observation needs, which helps to observe and analyze the changes in turbidity of the sample 19 to be tested more comprehensively and accurately. Compared with the use of incandescent lamp projection, the full-spectrum LED spotlight group as a scattered detection light source can provide a stable light source close to natural light in the observation box, solving the problems of large changes in natural light sources and insufficient wavelength bands of incandescent light sources. At the same time, compared with incandescent lamps that have high energy consumption and generate a lot of heat, the full-spectrum LED spotlight group in this embodiment not only has low energy consumption, which helps to reduce energy consumption and improve energy efficiency, but also generates low heat, which helps to prevent the sample 19 to be tested from being affected by heat and thus affecting the change in turbidity.

[0069] The scattered light from the full-spectrum LED spotlights has multi-angle penetration. This means that light can penetrate the sample 19 to be tested along different paths. This not only increases the angle of illumination for smaller particles or slight turbidity when penetrating the solution of the sample 19 to be tested, thereby improving the sensitivity of detecting turbid substances in the solution and making it easier for testers to perceive subtle differences caused by turbid substances, but also effectively reduces the burden on testers when looking directly at the light source during visual observation, avoiding visual fatigue and reducing work intensity.

[0070] It should be noted that multiple lighting assemblies 15 are provided, and at least one lighting assembly 15 is a full-spectrum LED spotlight assembly. All lighting assemblies 15 may be full-spectrum LED spotlight assemblies, or some may be full-spectrum LED spotlight assemblies and others may be other light source illumination structures (such as incandescent lamps, laser lamps, fluorescent lamps, etc.).

[0071] In some embodiments, the light emitting directions of multiple lighting components 15 intersect at the intersection position, which not only helps to reduce the interference of the light source to the inspection personnel and improve the comfort of observation, but also ensures that multiple lighting components 15 can illuminate the sample 19 to be tested, thereby improving the stability of observation.

[0072] Preferably, multiple light assemblies 15 are arranged at the same height. This height helps reduce observation errors caused by height differences and improves observation consistency and reliability. Of course, multiple light assemblies 15 can also be arranged at different heights, with the light emission directions of light assemblies 15 at different heights being relative to the observation position to provide illumination at different heights.

[0073] As shown in reference figure 1, the axis of the observation window 16, the multiple lighting assemblies 15 and the observation position are at the same height, which helps to reduce the observation error caused by the height difference, can ensure consistent observation conditions in different detection processes, and helps to improve the repeatability of the detection and the comparability of the results, thereby improving the reliability of the detection.

[0074] Next, the observation component is described.

[0075] As shown in Figures 4 and 5, the observation assembly also includes several detection units, which include a second rotating shaft 5 and a second base 7. The second base 7 is rotatably connected to the top of the first base 10. The second rotating shaft 5 is driven by an external force to rotate, thereby driving the second base 7 to rotate. The third end of the second rotating shaft 5 is fixedly connected to the second base 7, and the fourth end of the second rotating shaft 5 extends out of the observation box. The second base 7 is provided with a retaining groove 8 for placing the sample 19 to be tested.

[0076] In this embodiment, referring to FIG7 , the second base 7 is provided with a limiting groove 8 for placing the sample 19 to be tested. The sample 19 to be tested can be limited in the limiting groove 8. The fixed stability of the sample 19 to be tested helps to improve the stability of the sample 19 to be tested during the rotation process and observation process. The second base 7 is arranged above the first base 10 and is fixedly connected to the second rotating shaft 5. The rotation of the second rotating shaft 5 can drive the second base 7 to rotate on the first base 10.

[0077] Among them, one sample to be tested 19 can be set, and correspondingly, one limiting groove 8 is also set. The cooperation between the second rotating shaft 5 and the second base 7 can realize fine adjustment of the sample to be tested 19 so that the sample to be tested 19 is aligned with the observation window 16.

[0078] In some embodiments, in conjunction with FIG5 , a plurality of limit grooves 8 may be provided, and the plurality of limit grooves 8 are arranged in a ring with the second rotating shaft 5 as the center line. In this embodiment, a plurality of limit grooves 8 are provided, and a plurality of samples to be tested 19 may be provided in a second base 7. The second base 7 is rotated by the second rotating shaft 5 to realize the switching of the observation positions of different samples to be tested 19, thereby realizing the detection of the turbidity of multiple samples to be tested 19 in one test. In one test, the test personnel can continuously observe multiple samples to be tested 19 without having to replace them multiple times. This can not only effectively improve the efficiency of the test and solve the problem of low efficiency caused by the need to pick up and place the samples to be tested 19 individually in traditional devices, but also help reduce the frequency of manual loading and unloading, thereby saving test time and reducing errors caused by replacement.

[0079] In this embodiment, the second base 7 is provided with a plurality of retaining grooves 8, which can be used to mount both the test sample 19 and the control sample. In other words, the placement of the test sample 19 and the control sample on the second base 7 facilitates comparative measurement under the same observation conditions, thereby enhancing the perception of turbidity differences in the test sample 19.

[0080] Preferably, a plurality of detection units are provided, and a plurality of second rotating shafts 5 are arranged in a ring with the first rotating shaft 12 as the center line. In this embodiment, a plurality of detection units are provided, and a plurality of second rotating shafts 5 are arranged in a ring with the first rotating shaft 12 as the center line, that is, a plurality of detection units are arranged in a ring with the first rotating shaft 12 as the center line. By rotating the second end of the first rotating shaft 12, the first rotating shaft 12 rotates, driving the first base 10 fixedly connected to the first rotating shaft 12 to rotate. The first base 10 drives the plurality of detection units to rotate with the first rotating shaft 12 as the center line, so that when one of the detection units rotates to the observation position, the first rotating shaft 12 stops rotating, so that the detection unit stops at the observation position. By rotating the fourth end of the second rotating shaft 5, the second rotating shaft 5 rotates, driving the second base 7 fixedly connected to the second rotating shaft 5 to rotate, so that the plurality of samples to be tested 19 on the second base 7 rotate with the second rotating shaft 5 as the center line, thereby enabling the plurality of samples to be tested 19 to rotate to the observation position in sequence for observation.

[0081] In this embodiment, multiple detection units make it possible to conveniently switch and observe multiple samples 19 to be tested in the same experiment, which increases the detection efficiency and improves the consistency of the detection environment of the multiple samples 19 to be tested, thereby achieving better detection results.

[0082] Referring to Figures 5 and 6, the detection unit also includes a background plate 4, which is arranged between the limiting groove 8 and the second rotating shaft 5, and the background plate 4 is fixedly connected to the second base 7. In this embodiment, the background plate 4 can provide a uniform background for the sample to be tested 19, thereby solving the problem of background clutter affecting the judgment of solution turbidity in traditional visual turbidimetry. At the same time, the background plate 4 is used to perform background correction, that is, the background plate 4 corrects the measurement error caused by background light, thereby improving the accuracy of the measurement. The background plate 4 is fixedly connected to the second base 7 and is arranged between the limiting groove 8 and the second rotating shaft 5, which helps to ensure that the background plate 4 can stably provide a background for the sample to be tested 19 when the sample to be tested 19 is placed in the limiting groove 8, thereby reducing the measurement instability caused by changes in the position of the background plate 4.

[0083] 5 , preferably, multiple background plates 4 are provided, and the background plates 4 are arranged in a one-to-one correspondence with the limiting slots 8, and the multiple background plates 4 enclose the installation space of the second rotating shaft 5. In this embodiment, each limiting slot 8 has a corresponding background plate 4, that is, each of the multiple samples 19 to be tested has its own corresponding background plate 4, which helps prevent light from being transmitted or reflected from the position of one sample 19 to be tested to the position of another sample 19 to be tested, can effectively reduce cross-interference between different samples 19 to be tested, and helps ensure that each sample 19 to be tested is measured under relatively independent background conditions, thereby improving the reliability of the measurement.

[0084] Preferably, the background plate 4 is a white background plate 4. White background plate 4 is highly reflective and reflects more light, making it easier to observe the turbidity of the sample 19. Furthermore, the white background evenly distributes the reflected light, preventing areas of varying color or brightness. This helps provide a more uniform and consistent background, reducing interference during observation.

[0085] Furthermore, the background plate 4 is provided with a plurality of black lines 14. In this embodiment, the white background and the black lines 14 create a contrast, which helps improve the observer's ability to distinguish lines. The tester can judge the turbidity of the test sample 19 by observing the degree of blurriness of the black lines 14 after being obscured by the test sample 19, thereby improving the accuracy of turbidity detection. At the same time, when some suspended matter in the test sample 19 is similar in color to the background plate 4, the suspended matter with a similar color to the background plate 4 is difficult to observe with the human eye. In this case, the black lines 14 can reflect the suspended matter that is compatible with the white background plate 4. By observing the black lines 14, the suspended matter affected by the color of the background plate 4 can be further observed, thereby improving the accuracy of observation and the effectiveness of detection.

[0086] The black line 14 may be provided as a single black line or as a plurality of black lines. The black line 14 may be a straight line extending along the length or width of the background plate 4; of course, the black line 14 may also be an inclined straight line. The black line 14 may also be in the shape of an arc, a polyline, or the like. The black line 14 may also enclose a polygonal shape, such as a circle, a rectangle, or a triangle.

[0087] It should be noted that the colors of the background board 4 and the lines can be set according to actual needs, and can be white and black, or other colors with obvious contrast.

[0088] Referring to Figure 1 , the visual turbidimetric detection device includes a light shielding plate 3 rotatably connected to a first rotating shaft 12 and a second rotating shaft 5. The second end of the light shielding plate 3 extends through the first connection hole of the housing 1, and the fourth end extends through the second connection hole of the housing 1. The area of ​​the light shielding plate 3 covers both the first and second connection holes. In this embodiment, the light shielding plate 3 covers both the first and second connection holes, reducing the entry of ambient light, preventing the influence of external light sources on observation, and reducing the impact of environmental factors on the observation results. This increases sensitivity to subtle differences in turbidity and improves the accuracy and stability of detection.

[0089] It should be noted that at least one of the first rotating shaft 12 and the second rotating shaft 5 is provided with a force-applying part 6. Referring to Figure 1, a force-applying part 6 is provided at the second end and the fourth end. The first rotating shaft 12 or the second rotating shaft 5 can be rotated by applying force to the force-applying part 6. The rotation operation of the first rotating shaft 12 and the second rotating shaft 5 is convenient, and labor-saving operation can also be achieved through operation through the force-applying part 6. By applying a control force, uncontrolled vibration or swing can be reduced and the stability of the operation can be improved.

[0090] As shown in Figure 1 , when multiple detection units are provided, multiple second rotating shafts 5 are also provided, and the second rotating shafts 5 are arranged around the first rotating shaft 12 as the centerline. The first rotating shaft 12 is inserted into the first connecting hole, and the multiple second rotating shafts 5 are inserted into the second connecting hole. The first connecting hole can be a circular hole to allow the first rotating shaft 12 to pass through; the second connecting hole can be an annular hole, with the multiple second rotating shafts 5 inserted into the annular hole, and the multiple second rotating shafts 5 can rotate within the annular hole and are suitable for rotating around the first rotating shaft 12. The light shielding plate 3 covers the first and second connecting holes to prevent external light from entering the observation space through the first and second connecting holes.

[0091] In some embodiments, the first rotating shaft 12 and the second rotating shaft 5 can be inserted into the same hole. For example, a connecting hole is provided at the top of the housing 1, which is large enough to allow both the first rotating shaft 12 and the second rotating shaft 5 to be inserted therethrough. In this case, the light shielding plate 3 covers the connecting hole to provide a light shielding function.

[0092] As shown in FIG1 , the light shielding plate 3 can be disposed on the top of the housing 1, that is, the housing 1 is disposed at the bottom of the light shielding plate 3. The housing 1 can provide support for the light shielding plate 3, thereby eliminating the need for additional components to securely support the light shielding plate 3. This results in a simple structure and low cost for the visual turbidimetric detection device. Furthermore, by disposing the light shielding plate 3 at the top, it is convenient for the inspector to adjust the light shielding plate 3 so that it fully covers the first and second connection holes when the light shielding plate 3 deflects during emission. Of course, the light shielding plate 3 can also be rotatably connected to the top wall of the housing 1, that is, the light shielding plate 3 is located within the housing 1. The light shielding plate 3 can be configured according to actual needs and is not limited here.

[0093] Preferably, the observation box, light shield 3, and observation assembly are all light-proof. In this embodiment, the observation box and light shield 3 are all light-proof, effectively blocking external light, preventing interference from ambient light and ensuring precise control of the light in the observation space. The observation assembly is light-proof, which reduces the impact of background light. When multiple detection units are provided, it also reduces the impact of light refraction or scattering from adjacent detection units, ensuring that the inspector's attention is focused on the current sample, helping to improve detection contrast and accuracy.

[0094] The present invention provides a second embodiment, including a detection method of the visual turbidimetric detection device as described in any of the above embodiments, comprising:

[0095] S1. Open the box 1 to form an opening; at least one side of the box 1 is detachable to form an opening for taking and placing the sample 19 to be tested, and the sample 19 to be tested can be placed in the observation space through the opening.

[0096] S2. Place the sample 19 to be tested on the first base 10 through the opening; wherein, one sample 19 to be tested can be placed, or multiple samples 19 to be tested can be placed, so that multiple samples 19 to be tested can be observed in one test.

[0097] S3, closing the opening; wherein, after placing the sample 19 to be tested, the opening of the detachable side of the box 1 can be closed to achieve the closure of the box 1 and prevent external light sources from entering the observation space through the opening.

[0098] S4. Observe through the observation window 16 whether the interior of the housing 1 is in a dark environment. The sealing condition of the opening can be determined by observing whether the interior of the housing 1 is in a dark environment, that is, whether the opening is completely covered by the detachable side of the housing 1. If the visual turbidimetric detection device further includes a light shielding plate 3, the light shielding plate 3 can be adjusted to adjust the light shielding effect at the first connecting hole.

[0099] S5. Turn on the lighting assembly 15; preferably, a full-spectrum LED spotlight assembly is used.

[0100] S6. Rotate the first rotating shaft 12 to rotate the sample 19 through the first base 10, so that the sample 19 moves to the observation position; wherein, when there are multiple samples 19 to be tested, the first rotating shaft 12 can be rotated to rotate the multiple samples 19 to the observation position in sequence for observation.

[0101] S7 , observing the sample 19 to be tested through the observation window 16 .

[0102] The second embodiment of the present invention provides a detection method for a visual turbidimetric detection device, which is simple to operate and convenient to detect. Among them, the box body 1 of the observation box can provide a stable observation environment for the sample to be tested 19, avoiding the influence of external natural light or other light on the observation of liquid turbidity. When a plurality of samples to be tested 19 are placed on the first base 10, the switching of different samples to be tested 19 in the observation position can be achieved by rotating the first rotating shaft 12, so that the turbidity of multiple samples to be tested 19 can be detected in one test, thereby improving the detection efficiency of the samples to be tested 19.

[0103] Placing the sample 19 to be tested on the first base 10 through the opening includes the following steps:

[0104] S2′, placing the sample 19 to be tested in the limiting groove 8 of the second base 7 .

[0105] In this embodiment, the observation assembly also includes a number of detection units, and the detection units include a second rotating shaft 5 and a second base 7. The second base 7 is rotatably connected to the top of the first base 10, and the second rotating shaft 5 is driven to rotate by an external force to drive the second base 7 to rotate. The third end of the second rotating shaft 5 is fixedly connected to the second base 7, and the fourth end of the second rotating shaft 5 extends out of the observation box. The second base 7 is provided with a limiting groove 8 for placing the sample to be tested 19. The sample to be tested 19 can be limited in the limiting groove 8. The fixation and stability of the sample to be tested 19 help to improve the stability of the sample to be tested 19 during the rotation process and the observation process. Among them, the second base 7 is arranged above the first base 10, and the second base 7 is fixedly connected to the second rotating shaft 5. The rotation of the second rotating shaft 5 can drive the second base 7 to rotate on the first base 10.

[0106] The first rotating shaft 12 is rotated to drive the sample 19 to rotate via the first base 10, so that the sample 19 moves to the observation position, including the following steps:

[0107] S61, rotating the first rotating shaft 12 to drive the second base 7 to rotate about the first rotating shaft 12 as the center line through the first base 10, so that the second base 7 is located at the observation position;

[0108] S62 , rotating the second rotating shaft 5 to drive the second base 7 to rotate via the second rotating shaft 5 , so that the sample 19 to be tested is located at the observation position.

[0109] The second base 7 may be provided with one or more than one position-limiting groove 8. The second base 7 may be provided with one or more than one position-limiting groove 8. When the second base 7 is provided with multiple position-limiting grooves 8, the second base 7 can be adjusted to the observation position by rotating the first rotating shaft 12, and the sample 19 to be tested can be fine-tuned by rotating the second rotating shaft 5, thereby enabling the detection of multiple samples 19 to be tested, thereby improving the efficiency of the detection.

[0110] Next, the visual turbidimetric detection device and detection method provided by the embodiments of the present invention are described.

[0111] Example 1

[0112] The visual turbidimetric detection device includes: an observation box, which includes a back cover and a light shielding plate 3, a background plate 4 is arranged in the observation box, and the background plate 4 is arranged inside the observation box, and the background plate 4 is fixed on a small rotating shaft (i.e., the second rotating shaft 5). One end of the small rotating shaft is connected to a small handle outside the observation box (i.e., the force applying part 6), and the other end is fixed to a small rotating disk (i.e., the second base 7) inside the observation box. A limiting groove (i.e., the limiting groove 8) is provided on the small rotating disk, and the small rotating disk is fixed to a large rotating disk (i.e., the first base 10) through a rotating bearing 9. The large rotating disk is fixed to the shaft body of the central large rotating shaft (i.e., the first rotating shaft 12) through a loose nut 11. One end of the central large rotating shaft is fixed to the base of the observation box (i.e., the first end of the first rotating shaft 12 is rotatably connected to the bottom wall of the box body 1) through a limiting bearing 13, and the other end extends to the outside of the observation box, and the other end is connected to the central large handle (i.e., the operating part) outside the observation box. The inner side wall of the observation box is provided with a full-spectrum LED spotlight group, and the observation box is provided with a trapezoidal viewing window (i.e., observation window 16) and a cover lock (i.e., matching portion 17). A cover handle is provided on the cover to facilitate opening and closing of the cover.

[0113] As a preferred embodiment, further, the full-spectrum LED spotlight group includes several full-spectrum LED spotlight groups, and the light beams of multiple full-spectrum LED spotlights are focused on the sample bottle to be measured (that is, the sample 19 to be measured).

[0114] As a preferred embodiment, the small handle, small rotating shaft, small rotating disc, background plate 4, sample bottle, limiting groove and rotating bearing 9 further constitute a detection unit. The detection unit has several limiting grooves, each of which is closely attached to the respective background plate 4. The background plate 4 is a white background plate with a thin black line in the middle. Several observation background plates 4 are spliced ​​in a closed loop around the small rotating shaft. There are several detection units on the large rotating disc.

[0115] As a preferred embodiment, further, the center of the trapezoidal viewing window, the sample bottle, and the full-spectrum LED spotlight group are all at the same horizontal height.

[0116] As a preferred embodiment, further, the small rotating shaft is fixed on the small rotating disc, and the large rotating disc is fixed on the central large rotating shaft body in a manner that both passes through the center of the disc.

[0117] As a preferred embodiment, further, the rotation of the small rotating disc and the large rotating disc is driven by the small rotating shaft and the central large rotating shaft, and the rotation of the small rotating shaft and the central large rotating shaft is driven by manually rotating the small handle and the central large handle.

[0118] As a preferred embodiment, further, the observation box body 1, the small rotating disc, the large rotating disc, the small rotating shaft, the central large rotating shaft, the trapezoidal window, the back cover, and the light shielding plate 3 are all opaque acrylic plates.

[0119] Example 2

[0120] The present invention also provides a detection method, which is performed using the visual turbidimetric detection light box in Example 1. The specific working principle is as follows:

[0121] After opening the back cover lock of the observation box body 1, use the cover handle to open the back cover.

[0122] Prepare to place the sample bottles in the limiting grooves, which all belong to the same detection unit. Within the same detection unit, randomly place one sample bottle containing the test sample (i.e., the test sample 19) and several sample bottles containing the control sample (i.e., the control sample). There is no distinguishing mark or indication between the two sample bottles, and each sample bottle is distinguished only by random numbering.

[0123] After placing all the samples from the several groups of test units on the large rotating disc, close the back cover. Secure the back cover with the cover latch and adjust the light shield 3 to prevent interference from light outside the observation box body 1. Check through the trapezoidal viewing window to see if any other light sources within the device could affect sample testing. Then, turn on the full-spectrum LED spotlights.

[0124] Turn the large rotating disc by the large central handle to rotate the unit to be tested to the trapezoidal viewing window position, and rotate the small rotating disc by turning the small handle of the test unit to rotate the sample bottle to the center of the full-spectrum LED spotlight group;

[0125] The sampling bottle and the center of the trapezoidal viewing window are at the same level as the inspector's line of sight. The inspector uses the background plate 4 to assist in observing the turbidity of the sample, and selects a different sample in each detection unit that is different from other sample liquids in turbidity, writes down the number of the different sampling bottle and describes the difference phenomenon.

[0126] Furthermore, the method further comprises:

[0127] The large rotating disk is driven to rotate by rotating the large central handle, so that the samples 19 to be tested in different detection units are rotated to the position of the trapezoidal viewing window, so that multiple groups of samples 19 to be tested can be tested after loading the samples once;

[0128] After the inspector observes the sample, he / she opens the back cover and replaces a different sample 19 to be tested. After the inspector completes the test of the sample 19 to be tested, he / she takes out the sample bottle and turns off the full-spectrum LED spotlight assembly.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A visual turbidimetric detection device, characterized in that: include: An observation box comprises a box body (1), wherein an observation space is arranged inside the box body (1), an observation window (16) is arranged on at least one side of the box body (1), and at least one side of the box body (1) is detachable to form an opening for taking in and placing a sample to be tested (19); The observation assembly comprises a first base (10) and a first rotating shaft (12), wherein the first end of the first rotating shaft (12) is rotatably connected to the bottom wall of the box body (1), the shaft of the first rotating shaft (12) is fixedly connected to the first base (10), the second end of the first rotating shaft (12) extends out of the top wall of the observation box, the first base (10) is used to place the sample to be tested (19), and the second end is driven to rotate by external force to drive the first base (10) to rotate, so that the sample to be tested (19) is rotated to an observation position, and the observation window (16) faces the observation position; A light assembly (15) is used to illuminate the sample to be tested (19) located at the observation position, and the light assembly (15) is arranged on the inner wall of the observation box.

2. The visual turbidimetric detection device according to claim 1, characterized in that: A plurality of the lighting components (15) are provided, and at least one of the lighting components (15) is a full-spectrum LED spotlight assembly.

3. The visual turbidimetric detection device according to claim 2, characterized in that: The light emission directions of the plurality of light assemblies (15) intersect at the observation position; and / or the axes of the observation window (16), the plurality of light assemblies (15) and the observation position are at the same height.

4. The visual turbidimetric detection device according to claim 1, characterized in that: The observation assembly also includes a plurality of detection units, wherein the detection units include a second rotating shaft (5) and a second base (7), wherein the second base (7) is rotatably connected to the top of the first base (10), and the third end of the second rotating shaft (5) is fixedly connected to the second base (7), and the second rotating shaft (5) is driven to rotate by an external force to drive the second base (7) to rotate on the first base (10); the fourth end of the second rotating shaft (5) extends out of the observation box, and the second base (7) is provided with a limiting groove (8) for placing the sample to be tested (19), and the limiting groove (8) is provided in plurality, and the plurality of limiting grooves (8) are arranged in a ring shape with the second rotating shaft (5) as the center line; and / or the detection units are provided in plurality, and the plurality of second rotating shafts (5) are arranged in a ring shape with the first rotating shaft (12) as the center line.

5. The visual turbidimetric detection device according to claim 4, characterized in that: The detection unit further comprises a background plate (4), wherein the background plate (4) is arranged between the limiting groove (8) and the second rotating shaft (5), and the background plate (4) is fixedly connected to the second base (7); And / or, a plurality of the background plates (4) are provided, the background plates (4) are provided in one-to-one correspondence with the limiting grooves (8), and the plurality of the background plates (4) surround an installation space for the second rotating shaft (5) 5.

6. The visual turbidimetric detection device according to claim 5, characterized in that: The background plate (4) is a white background plate (4), and the background plate (4) is provided with a plurality of black lines (14).

7. The visual turbidimetric detection device according to claim 4, characterized in that: It also includes a shading plate (3), the first rotating shaft 12 and the second rotating shaft (5) 5 are rotatably connected to the shading plate (3), the second end is passed through the first connecting hole of the box body 1, and the fourth end is passed through the second connecting hole of the box body (1), and the area of ​​the shading plate (3) covers the first connecting hole and the second connecting hole; and / or the observation box, the shading plate (3) and the observation component are all light-proof structures.

8. A detection method of the visual turbidimetric detection device according to any one of claims 1 to 7, characterized in that: include: Open the box 1 to form an opening; Placing a sample to be tested (19) on the first base (10) through the opening; closing the opening; Observe through the observation window (16) whether the interior of the box (1) is in a dark environment; Turn on the light assembly (15); Rotating the first rotating shaft (12) to drive the sample to be tested (19) to rotate via the first base (10), so that the sample to be tested (19) moves to the observation position; The sample to be tested (19) is observed through the observation window (16).

9. The detection method of the visual turbidimetric detection device according to claim 8, characterized in that: Placing the sample to be tested (19) on the first base (10) through the opening comprises the following steps: The sample to be tested (19) is placed in the limiting groove (8) of the second base (7).

10. The detection method of the visual turbidimetric detection device according to claim 9, characterized in that: The first rotating shaft (12) is rotated to drive the sample to be tested (19) to rotate via the first base (10), so that the sample to be tested (19) moves to the observation position, comprising the following steps: Rotating the first rotating shaft (12) to drive the second base (7) to rotate around the first rotating shaft (12) as the center line through the first base (10), so that the second base (7) is located at the observation position; The second rotating shaft (5) is rotated to drive the second base (7) to rotate via the second rotating shaft (5), so that the sample to be tested (19) is located at an observation position.

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