A sampling structure of a water quality turbidimeter

Abstract

The utility model discloses a sampling structure of water quality turbidimeter applies in water quality monitoring technical field, the utility model discloses through having convenient operation, through rotation can quick realization sampling and sealing's switching, adapts the use demand of small -size portable equipment, and the sealing performance is reliable, can effectively prevent the liquid leakage after sampling and the invasion of outside pollutant, guarantees sample stability, and the detachable design is convenient for the cleaning maintenance to the component, avoids the residual impurity interference subsequent detection, improves the durability and detection accuracy of sampling structure, can effectively avoid the particle in sample deposition, makes the liquid to be measured keep uniform state, ensures the detection result stable and reliable, and the operation mode is simple, can realize the stirring effect through rotation at any time, is favorable for improving the accuracy and repeatability of detection.

Description

Technical Field

[0001] This utility model belongs to the field of water quality monitoring technology, and specifically relates to a sampling structure for a water turbidity meter. Background Technology

[0002] Turbidity, or the degree of cloudiness in water, is caused by trace amounts of insoluble suspended matter and colloidal matter in the water. The unit of measurement used in the ISO standard is FTU (turbidity unit), which is consistent with NTU (turbidity measurement unit). Turbidity meters measure the turbidity of water based on this principle. The sampling structure of a water quality turbidity meter is the sampling bottle structure used in small portable water quality turbidity meters.

[0003] However, traditional water turbidity meters have cumbersome sampling structures and require multiple loading and unloading operations to switch between sampling and sealing states. They have poor adaptability, unreliable sealing, and are prone to liquid leakage or intrusion of external contaminants, which affects sample stability. Most components are fixedly connected, making them difficult to disassemble and clean. Residual impurities can easily interfere with subsequent detection, thus reducing detection accuracy. At the same time, it is difficult to avoid the precipitation of particulate matter in the sample, which can easily cause the liquid to be tested to stratify or have uneven local concentrations, resulting in large fluctuations in detection results and poor accuracy and repeatability. They also require external shaking and other operations, which may introduce air bubbles and further interfere with the detection results.

[0004] To address the issues mentioned in the background, a sampling structure for a water turbidity meter is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a sampling structure for a water turbidity meter, which has the advantages of rapid switching of sampling sealing and prevention of sedimentation.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sampling structure for a water turbidity meter, comprising a bottle body, a bottom cover threadedly connected to the top of the bottle body surface, a groove on the left side of the top of the bottom cover, a retaining groove at the rear end of the bottom of the groove, a sliding groove on the inner wall of the bottom cover, a top cover on the top of the bottom cover, sliders on both sides of the bottom of the top cover, a sealing plug bolted to the rear end of the bottom of the top cover, an opening on the left side of the top of the top cover, an opening at the front end of the bottom of the groove, an outlet on the top of both sides of the bottom cover, and a stirring mechanism at the center of the top of the bottom cover.

[0007] Using the above technical solution: The top cover rotates, causing the bottom slider to engage with the inner wall groove of the bottom cover, limiting its movement and allowing it to rotate relative to the bottom cover. Initially, the top cover positions the sealing plug at the rear end of the groove. Rotating the top cover counterclockwise causes the sealing plug and opening one to rotate. After rotation, the sealing plug engages with the groove first, and opening one of the top cover and opening two of the bottom cover are vertically aligned. The water to be tested is squeezed into the bottle through opening one and opening two via a sampling tube. After completion, rotating the top cover counterclockwise again causes the sealing plug and opening one to rotate. At this point, the sealing plug engages with opening two of the bottom cover, achieving a seal. After sealing, the bottle is closed. The sample is placed inside the turbidimeter for testing. After testing, the top cover is moved in the opposite direction to disengage the slider from the groove. The top cover is then removed, causing the slider to detach from the outlet. The bottom cover is rotated to open, allowing for cleaning of the bottle, top cover, and bottom before sampling again. The system is easy to operate, allowing for quick switching between sampling and sealing via rotation. It is suitable for small, portable devices and offers reliable sealing performance, effectively preventing liquid leakage and external contaminant intrusion after sampling, ensuring sample stability. The detachable design facilitates cleaning and maintenance of components, preventing residual impurities from interfering with subsequent testing and improving the durability and accuracy of the sampling structure.

[0008] The present invention is further configured such that the stirring mechanism includes a rotating rod, the rotating rod is located at the center of the top of the bottom cover and is rotatably connected, stirring blades are provided on both sides of the bottom of the rotating rod surface, a through hole is opened at the center of the top of the top cover, and the rotating rod surface is located away from the center of the through hole.

[0009] The above technical solution employs a stirring mechanism. Before placing the liquid into the turbidimeter, rotating the rotor agitates the liquid inside the bottle. The rotor drives the stirring blades on both sides of the bottom to rotate synchronously. As the stirring blades rotate within the bottle, they disturb the liquid, causing particulate matter to disperse evenly and preventing sedimentation. This ensures a stable liquid state during testing and guarantees the reliability of the test results. The top of the stirring mechanism passes through a hole in the top cover, facilitating external operation and preventing interference with the rotor's rotation. It effectively prevents particulate matter from settling in the sample, keeping the liquid to be tested in a uniform state and ensuring stable and reliable test results. The operation is simple, and stirring can be achieved at any time by rotating the mechanism, which helps improve the accuracy and repeatability of the test.

[0010] The present invention is further configured such that a sealing ring is fitted between the bottom of the rotating rod surface near the middle and the top of the bottle body.

[0011] The above technical solution, by setting a sealing ring and using an interference fit, has a dynamic sealing function to prevent leakage.

[0012] The present invention is further provided with markings on the rear end of the top of the top cover and the bottom of the surface of the bottom cover.

[0013] The above technical solution, with its clearly marked labels, allows for intuitive operation and facilitates switching between sealing and sampling.

[0014] The present invention is further configured such that the stirring blade is made of a transparent material.

[0015] By adopting the above technical solution, by setting it to a transparent material, the stirring blade can be prevented from affecting the test results.

[0016] The present invention is further provided that the front of the bottle body is provided with a scale.

[0017] The above technical solution allows for the observation of the amount of sampled water inside the bottle by setting a scale.

[0018] The present invention is further configured such that a knob is fixedly sleeved on the top of the rotating rod.

[0019] The above technical solution utilizes a knob to facilitate the rotation of the lever.

[0020] The present invention is further configured such that the inner diameter of the through hole is larger than the outer diameter of the rotating rod and the knob.

[0021] By adopting the above technical solution, by setting the outer diameter to be larger than that of the rotating rod and the knob, the removal of the top cover can be carried out without hindrance.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. This utility model features convenient operation, allowing for quick switching between sampling and sealing via rotation, making it suitable for small portable devices. It offers reliable sealing performance, effectively preventing liquid leakage and external contaminant intrusion after sampling, ensuring sample stability. The detachable design facilitates cleaning and maintenance of components, preventing residual impurities from interfering with subsequent testing, and improving the durability and accuracy of the sampling structure.

[0024] 2. This utility model effectively avoids the precipitation of particulate matter in the sample, keeps the liquid to be tested in a uniform state, ensures stable and reliable test results, and is easy to operate. The stirring effect can be achieved at any time by rotating, which helps to improve the accuracy and repeatability of the test. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0027] Figure 3 This is a top sectional view of a partial structure of this utility model;

[0028] Figure 4 This is a partial structural bottom sectional view of this utility model.

[0029] Attached reference numerals: 1. Bottle body; 2. Bottom cap; 3. Top cap; 4. Groove; 5. Slot; 6. Slide groove; 7. Slider; 8. Sealing plug; 9. Opening one; 10. Opening two; 11. Outlet; 12. Rotating rod; 13. Stirring blade; 14. Through hole; 15. Sealing ring; 16. Marking; 17. Scale; 18. Knob. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4A sampling structure for a water turbidity meter includes a bottle body 1 made of high borosilicate glass with a wall thickness of 1-1.5 mm. A bottom cover 2 is threadedly connected to the top of the bottle body 1 via an M16-M20 thread with a thread precision of 6g / 6H. A slot 4 is formed on the left side of the top of the bottom cover 2. The viewing angle inside the slot 4 is 0° with the sealing plug 8 directly above it. A retaining groove 5 is rotated 60 degrees counterclockwise, an opening 2 10 is rotated 120 degrees counterclockwise, and an opening 1 is rotated 60 degrees counterclockwise. A retaining groove 5 is formed at the rear end of the bottom of the slot 4. The bottom cover 2... The inner wall of the top cover 2 has a groove 6, and the top cover 3 is provided on the top of the bottom cover 2. Slider 7 is provided on both sides of the bottom of the top cover 3. The clearance between the slider 7 and the groove 6 is 0.1-0.3mm, and the slider length is 15-20mm. A sealing plug 8 is bolted to the rear end of the bottom of the top cover 3. The sealing plug 8 is made of food-grade silicone, and after assembly with a compression of 10%-15%, the Shore A hardness is 60-70. An opening 9 is provided on the left side of the top of the top cover 3. An opening 10 is provided at the front end of the bottom of the groove 4. The diameters of opening 9 and opening 10 are 3-5mm. The deviation is ≤0.5mm. The top of both sides of the bottom cover 2 has an outlet 11. A stirring mechanism is located at the center of the top of the bottom cover 2. The top cover 3 rotates, causing the bottom slider 7 to engage with the inner wall groove 6 of the bottom cover 2, limiting its movement. It can rotate relative to the bottom cover 2. Initially, the top cover 3 positions the sealing plug 8 to correspond to the rear end of the groove 4. Rotating the top cover 3 counterclockwise causes the sealing plug 8 and opening 1 9 to rotate. After rotation, the sealing plug 8 engages with the groove 5 first. Opening 1 9 of the top cover 3 and opening 2 10 of the bottom cover 2 are vertically aligned. The required sample is collected through a sampling tube. The water being tested is squeezed into the bottle 1 through opening 9 and opening 10. After that, the top cover 3 is rotated counterclockwise again. The top cover 3 drives the sealing plug 8 and opening 9 to rotate. At this time, the sealing plug 8 engages with opening 10 of the bottom cover 2 to achieve a seal. After sealing, the bottle 1 is placed inside the turbidimeter for testing. After the test is completed, the top cover 3 is moved in the opposite direction to disengage the slider 7 from the inside of the slide groove 6. The top cover 3 is then removed outwards, and the top cover 3 drives the slider 7 to fall off from the outlet 11. The bottom cover 2 is then rotated to open, allowing the bottle 1, top cover 3, and bottom to be cleaned before sampling can be taken again.

[0033] refer to Figure 2 A sealing ring 15 is fitted onto the bottom of the rotating rod 12 near the middle and the top of the bottle body 1. By setting the sealing ring 15 and fitting it with an interference fit, it has a dynamic sealing function to prevent leakage. The cross-sectional diameter is 2-3mm, the material is nitrile rubber (NBR), and the water resistance temperature is -20℃~80℃.

[0034] refer to Figure 1 The top rear end of the top cover 3 and the bottom of the surface of the bottom cover 2 are marked with a mark 16. By setting the mark 16, the operation can be intuitive and the switching between sealing and sampling can be convenient.

[0035] refer to Figure 1 The front of bottle 1 is marked with a scale 17. By setting the scale 17, the amount of water sampled inside bottle 1 can be observed with an accuracy of ±1mL and a range of 0-100mL.

[0036] Example 2:

[0037] refer to Figure 1 , Figure 2 A sampling structure for a water turbidity meter includes a stirring mechanism comprising a rotating rod 12. The rotating rod 12 is located at the center of the top of the bottom cover 2 and is rotatably connected. The rotating rod 12 and the bottom cover 2 are rotatably connected by a clearance fit with a clearance of 0.05-0.1 mm. Two stirring blades 13 are provided on both sides of the bottom surface of the rotating rod 12. The stirring blades 13 are made of polycarbonate (PC) with a light transmittance of ≥90%. A through hole 14 is provided at the center of the top of the top cover 3, and the top of the rotating rod 12, away from the center, passes through the through hole 14. Before placing the turbidity meter, rotating the rotating rod 12 stirs the liquid in the bottle. The rotating rod 12 drives the stirring blades 13 on both sides of the bottom to rotate synchronously. During the rotation of the stirring blades 13 in the bottle 1, the stirring blades 13 disturb the liquid, so that the particulate matter in the liquid is evenly dispersed, avoiding sedimentation and accumulation, ensuring the stability of the liquid state during detection, and ensuring the reliability of the detection results. The top of the stirring blades passes through the through hole 14 of the top cover 3 for easy external operation and to prevent interference with the rotation of the rotating rod 12.

[0038] refer to Figure 1 , Figure 2 The stirring blade 13 is made of transparent material. By making it transparent, the stirring blade 13 can be prevented from affecting the test results.

[0039] refer to Figure 1 , Figure 2 A knob 18 is fixedly sleeved on the top of the rotating rod 12, which allows the rotating rod 12 to be rotated easily.

[0040] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 The inner diameter of the through hole 14 is set to be larger than the outer diameter of the rotating rod 12 and the knob 18. By setting it to be larger than the outer diameter of the rotating rod 12 and the knob 18, it can be removed without hindering the removal of the top cover 3.

[0041] Brief description of usage: The top cover 3 rotates, causing the bottom slider 7 to engage with the inner wall groove 6 of the bottom cover 2, limiting its movement. It can rotate relative to the bottom cover 2. In the initial state, the top cover 3 positions the sealing plug 8 to correspond to the rear end of the slot 4. Rotating the top cover 3 counterclockwise causes the sealing plug 8 and opening 9 to rotate. After rotation, the sealing plug 8 engages with the slot 5 first. The opening 9 of the top cover 3 and the opening 10 of the bottom cover 2 are vertically aligned. The water to be tested is squeezed into the bottle 1 through the sampling tube through opening 9 and opening 10. After completion, rotating the top cover 3 counterclockwise again causes the sealing plug 8 and opening 9 to rotate. At this time, the sealing plug 8 engages with the opening 10 of the bottom cover 2, achieving a seal. After sealing, the bottle is closed. 1. Place the sample inside the turbidimeter for testing. After testing, move the top cover 3 in the opposite direction to disengage the slider 7 from the inside of the slide groove 6. Take out the top cover 3, and the top cover 3 will cause the slider 7 to fall off from the outlet 11. Rotate the bottom cover 2 to open it. After cleaning the bottle body 1, top cover 3 and bottom, you can take a sample again. Before placing the sample into the turbidimeter, rotate the rotating rod 12 to agitate the liquid inside the bottle. The rotating rod 12 drives the stirring blades 13 on both sides of the bottom to rotate synchronously. The stirring blades 13 create disturbance in the liquid during the rotation inside the bottle body 1, so that the particulate matter in the liquid is evenly dispersed, avoiding precipitation and accumulation, ensuring the stability of the liquid state during testing, and ensuring the reliability of the test results. Its top passes through the through hole 14 of the top cover 3 for easy external operation and to prevent affecting the rotation of the rotating rod 12.

[0042] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A sampling structure for a water turbidity meter, comprising a bottle (1), characterized in that: The top of the bottle body (1) is threaded with a bottom cover (2). A slot (4) is provided on the left side of the top of the bottom cover (2). A slot (5) is provided at the rear end of the bottom of the slot (4). A sliding groove (6) is provided on the inner wall of the bottom cover (2). A top cover (3) is provided on the top of the bottom cover (2). Slider (7) is provided on both sides of the bottom of the top cover (3). A sealing plug (8) is bolted to the rear end of the bottom of the top cover (3). An opening (9) is provided on the left side of the top of the top of the top cover (3). An opening (10) is provided at the front end of the bottom of the slot (4). An outlet (11) is provided on the top of both sides of the bottom cover (2). A stirring mechanism is provided at the center of the top of the bottom cover (2).

2. The sampling structure of a water turbidity meter according to claim 1, characterized in that: The stirring mechanism includes a rotating rod (12), which is located at the center of the top of the bottom cover (2) and is rotatably connected. Stirring blades (13) are provided on both sides of the bottom of the rotating rod (12). A through hole (14) is opened at the center of the top of the top cover (3), and the inside of the through hole (14) is far from the center of the rotating rod (12).

3. The sampling structure of a water turbidity meter according to claim 2, characterized in that: A sealing ring (15) is fitted onto the bottom of the rotating rod (12) near the middle and the top of the bottle body (1).

4. The sampling structure of a water turbidity meter according to claim 1, characterized in that: The top rear end of the top cover (3) and the bottom of the surface of the bottom cover (2) are marked (16).

5. The sampling structure of a water turbidity meter according to claim 2, characterized in that: The stirring blade (13) is made of transparent material.

6. The sampling structure of a water turbidity meter according to claim 1, characterized in that: The front of the bottle (1) is provided with a scale (17).

7. The sampling structure of a water turbidity meter according to claim 2, characterized in that: A knob (18) is fixedly sleeved on the top of the rotating rod (12).

8. The sampling structure of a water turbidity meter according to claim 7, characterized in that: The inner diameter of the through hole (14) is set to be larger than the outer diameter of the rotating rod (12) and the knob (18).

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