A detection module for water quality detection

Abstract

This utility model discloses a detection module for water quality testing, including a hollow detection seat, a cuvette, a light source, and a sensor. The top of the detection seat is connected to an upper adapter plate, and the bottom is connected to a lower adapter plate. A through hole is vertically provided in the middle of the detection seat, through which the cuvette passes. The upper and lower ends of the cuvette are clamped and fixed by the upper and lower adapter plates. The front side wall of the detection seat has a light source hole, and the rear side wall has a sensor slot. The light source hole corresponds to the sensor slot, with the light source located outside the light source hole and the sensor located inside the sensor slot. Using the technical solution of this utility model, the pre-treated sample is directly transported to the cuvette for testing through the sample inlet connector, resulting in high reliability, good consistency, and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and in particular to a testing module for water quality testing. Background Technology

[0002] For water quality monitoring, the most common products on the market are miniature water quality monitoring stations, which use national standard methods to monitor nine major water quality parameters, including COD, ammonia nitrogen, phosphate, nitrate, turbidity, dissolved oxygen, conductivity, temperature, and pH. These miniature water quality monitoring stations can be quickly set up and installed on-site and can be connected to a solar power system for outdoor use.

[0003] However, these miniature water quality monitoring stations collect water samples using sampling tubes. Before testing different parameters, the samples are pre-treated. Some tests require placing the sampling tube in front of a light source, with a sensor on the other side receiving the light intensity. Changes in light intensity are then used to derive water sample parameters. Currently, operators sometimes place the sampling tubes incorrectly, leading to significant deviations in the test results and requiring improved reliability. Furthermore, they generally lack self-cleaning capabilities, necessitating regular replacement of cuvettes. Failure to replace them promptly can cause contamination of the cuvette's inner wall, affecting the test results. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model discloses a detection module for water quality testing, which offers high reliability, good consistency, and convenient operation.

[0005] The technical solution of this utility model is as follows:

[0006] A detection module for water quality testing includes a hollow detection base, a cuvette, a light source, and a sensor for detecting changes in the amount of light received. The detection base has an upper adapter plate connected to its top and a lower adapter plate connected to its bottom. A through hole is vertically provided in the middle of the detection base, through which the cuvette passes. The upper and lower ends of the cuvette are clamped and fixed by the upper and lower adapter plates. The front side wall of the detection base has a light source hole, and the rear side wall has a sensor slot. The light source hole and the sensor slot correspond, with the light source located outside the light source hole and the sensor located inside the sensor slot.

[0007] The upper adapter plate is provided with a first mounting hole for installing a cleaning flow path connector. Below the first mounting hole are a groove for installing a sealing ring, a flow channel, and an air passage that communicates with the atmosphere. The cleaning flow path connector is located in the first mounting hole and communicates with the groove through the flow channel. The groove communicates with the air passage.

[0008] The lower adapter plate is provided with a collection hole for liquid discharge from the cuvette, a sample liquid channel, a second mounting hole, and a third mounting hole. The second mounting hole is provided with a sample inlet connector, and the third mounting hole is provided with a waste liquid connector. The bottom of the collection hole is connected to the middle of the sample liquid channel, and the two ends of the sample liquid channel are respectively connected to the second mounting hole and the third mounting hole for communication with the sample inlet connector in the second mounting hole and the waste liquid connector in the third mounting hole.

[0009] Using this technical solution, the pretreated water sample is directly input into the cuvette through the sample inlet connector. After the test is completed, it is discharged through the waste liquid connector. The test results are reliable, consistent, and easy to operate.

[0010] As a further improvement of this utility model, the flow collection hole is an inverted cone shape.

[0011] As a further improvement of this utility model, the liquid outlet channel is horizontally arranged, and the second mounting hole and the third mounting hole are symmetrically arranged at both ends of the sample liquid channel.

[0012] As a further improvement of this utility model, the airway is L-shaped.

[0013] As a further improvement of this utility model, the top of the detection seat is provided with a first fixing hole, and the upper adapter plate is fixedly connected to the detection seat through a first fixing member and a first positioning hole;

[0014] The bottom of the testing seat is provided with a second fixing hole, and the lower adapter plate is fixedly connected to the testing seat through a second fixing member and a second positioning hole.

[0015] As a further improvement of this utility model, the front sidewall of the detection seat is connected to the first cover plate, and the rear sidewall of the detection seat is connected to the second cover plate. The first cover plate is provided with a light source mounting groove corresponding to the light source hole, and the light source is installed in the light source mounting groove. The second cover plate is provided with a sensor mounting groove corresponding to the sensor groove, and the sensor is installed in the sensor mounting groove.

[0016] As a further improvement of this utility model, the upper part of the first cover plate is provided with a first notch for facilitating the routing of light source lines, and the upper part of the second cover plate is provided with a second notch for facilitating the routing of sensor lines.

[0017] As a further improvement of this utility model, the first cover plate is fixedly connected to the front side wall of the detection seat by a third fixing member, and the second cover plate is fixedly connected to the rear side wall of the detection seat by a fourth fixing member.

[0018] As a further improvement of this utility model, the upper adapter plate and the lower adapter plate are made of PEEK, nylon or PTFE, and the detection seat, the first cover plate and the second cover plate are made of aluminum alloy.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] The technical solution of this invention allows pretreated samples to be directly delivered to the cuvette for detection via the sample inlet connector, resulting in high reliability and good consistency. Furthermore, after detection, the waste liquid can be discharged through the waste inlet connector, and cleaning solution can be injected through the cleaning inlet connector to clean the inner wall of the cuvette. After cleaning, the waste liquid can be discharged again through the waste inlet connector, providing a self-cleaning function, improving the lifespan of the cuvette, extending the cuvette replacement cycle, and saving costs. Moreover, this detection module can be used in conjunction with a microfluidic chip, facilitating modular combination and improving detection efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a detection module for water quality testing according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the detection seat according to an embodiment of the present invention, wherein a) is a schematic diagram of the external structure and b) is a schematic diagram of the internal structure.

[0023] Figure 3 This is a schematic diagram of the upper adapter plate according to an embodiment of the present utility model, wherein a) is a cross-sectional view and b) is a top view.

[0024] Figure 4 This is a schematic diagram of the structure of the lower adapter plate according to an embodiment of the present utility model, wherein a) is a bottom view and b) is a cross-sectional view.

[0025] Figure 5 This is a schematic diagram of the structure of the first cover plate in an embodiment of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the second cover plate in an embodiment of this utility model.

[0027] The reference numerals in the figures include:

[0028] 1-Detection base, 2-Upper adapter plate, 3-Lower adapter plate, 4-Cuvette, 5-First cover plate, 6-Second cover plate, 7-Light source, 8-Sensor;

[0029] 11-Through hole, 12-Light source hole, 13-Sensor slot, 14-First fixing hole, 15-Second fixing hole, 16-Third fixing hole, 17-Fourth fixing hole;

[0030] 21-First mounting hole; 22-Groove; 23-Flow channel; 24-Air passage; 25-Cleaning flow path connector;

[0031] 31-Collection hole; 32-Second mounting hole; 33-Third mounting hole; 34-Sample flow channel; 35-Sample inlet connector; 36-Waste liquid connector;

[0032] 51-Light source mounting slot, 52-First notch;

[0033] 61 - Sensor mounting slot, 62 - Second notch. Detailed Implementation

[0034] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figures 1-6 As shown, a detection module for water quality testing includes a hollow detection base 1, a cuvette 4, a light source 7, and a sensor 8. The top of the detection base 1 is connected to an upper adapter plate 2, and the bottom is connected to a lower adapter plate 3. A through hole 11 is vertically provided in the middle of the detection base 1, through which the cuvette 4 passes. The upper and lower ends of the cuvette 4 are clamped and fixed by the upper adapter plate 2 and the lower adapter plate 3. The front side wall of the detection base 1 has a light source hole 12, and the rear side wall has a sensor groove 13. The light source hole 12 and the sensor groove 13 correspond to each other. The light source 7 is located outside the light source hole 12, and the sensor 8 is located inside the sensor groove 13.

[0036] The upper adapter plate 2 is provided with a first mounting hole 21 for installing a cleaning flow path connector 25. Below the first mounting hole 21 are a groove 22 for installing a sealing ring, a flow channel 23, and an air passage 24 communicating with the atmosphere. The cleaning flow path connector 25 is located in the first mounting hole 21 and communicates with the groove 22 through the flow channel 23. The groove 22 communicates with the air passage 24. The air passage 24 is L-shaped. The cleaning flow path connector 25 is connected to a cleaning pump.

[0037] The lower adapter plate 3 is provided with a collection hole 31 for liquid discharge from the cuvette 4, a sample liquid channel 34, a second mounting hole 32, and a third mounting hole 33. A sample inlet connector 35 is provided in the second mounting hole 32, and a waste liquid connector 36 is provided in the third mounting hole 33. The bottom of the collection hole 31 is connected to the middle of the sample liquid channel 34, and both ends of the sample liquid channel 34 are connected to the second mounting hole 32 and the third mounting hole 33, respectively, for communication with the sample inlet connector 35 in the second mounting hole 32 and the waste liquid connector 36 in the third mounting hole 33. The collection hole 31 is inverted conical. The sample liquid channel 34 is horizontally arranged, and the second mounting hole 32 and the third mounting hole 33 are symmetrically arranged at both ends of the sample liquid channel 34. The upper part of the collection hole 31 is provided with a groove 22 for installing a sealing ring. The waste liquid connector 36 is connected to a waste liquid pump.

[0038] The front sidewall of the detection seat 1 is connected to the first cover plate 5, and the rear sidewall of the detection seat 1 is connected to the second cover plate 6. The first cover plate 5 has a light source mounting groove 51 corresponding to the light source hole 12, and the light source 7 is installed in the light source mounting groove 51. The second cover plate 6 has a sensor mounting groove 61 corresponding to the sensor groove 13, and the sensor 8 is installed in the sensor mounting groove 61. The upper part of the first cover plate 5 has a first notch 52 for facilitating the routing of the light source 7, and the upper part of the second cover plate 6 has a second notch 62 for facilitating the routing of the sensor 8.

[0039] The top of the detection seat 1 is provided with a first fixing hole 14, and the upper adapter plate 2 is fixedly connected to the detection seat 1 through a first fixing member and a first positioning hole 14; the bottom of the detection seat 1 is provided with a second fixing hole 15, and the lower adapter plate 3 is fixedly connected to the detection seat 1 through a second fixing member and a second positioning hole 15. The first cover plate 5 is fixedly connected to the third fixing hole 16 on the front side wall of the detection seat 1 through a third fixing member, and the second cover plate 6 is fixedly connected to the fourth fixing hole 17 on the rear side wall of the detection seat 1 through a fourth fixing member.

[0040] The upper adapter plate 2 and the lower adapter plate 3 are made of PEEK, nylon or PTFE, and the detection seat 1, the first cover plate 5 and the second cover plate 6 are made of aluminum alloy.

[0041] Using the technical solution of this embodiment, the processed sample enters the cuvette 4 through the sample inlet connector on the lower adapter plate 3. The upper adapter plate 2 and the lower adapter plate 3 are sealed to the cuvette 4 by a sealing ring. The light source 7 is turned on, and the water quality parameters can be obtained by analyzing the data received by the sensor 8. After the detection is completed, the waste liquid pump is started, and the liquid in the cuvette 4 flows out through the collection hole 31 and the waste liquid connector 36. Then, it can be cleaned by injecting cleaning liquid through the cleaning pump through the cleaning flow connector 25, which improves the life of the cuvette, extends the cuvette replacement cycle, saves costs, makes the detection more reliable and consistent, and is easy to operate.

[0042] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0045] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the shape and structure of this utility model are within the protection scope of this utility model.

Claims

1. A detection module for water quality detection, characterized in that: The device includes a hollow detection base, a cuvette, a light source, and a sensor. The top of the detection base is connected to an upper adapter plate, and the bottom is connected to a lower adapter plate. A through hole is vertically provided in the middle of the detection base, through which the cuvette passes. The upper and lower ends of the cuvette are clamped and fixed by the upper and lower adapter plates. The front side wall of the detection base has a light source hole, and the rear side wall has a sensor groove. The light source hole and the sensor groove correspond to each other. The light source is located outside the light source hole, and the sensor is located inside the sensor groove. The upper adapter plate is provided with a first mounting hole for installing a cleaning flow path connector. Below the first mounting hole are a groove for installing a sealing ring, a flow channel, and an air passage that communicates with the atmosphere. The cleaning flow path connector is located in the first mounting hole and communicates with the groove through the flow channel. The groove communicates with the air passage. The lower adapter plate is provided with a collection hole for liquid discharge from the cuvette, a sample liquid channel, a second mounting hole, and a third mounting hole. The second mounting hole is provided with a sample inlet connector, and the third mounting hole is provided with a waste liquid connector. The bottom of the collection hole is connected to the middle of the sample liquid channel, and the two ends of the sample liquid channel are respectively connected to the second mounting hole and the third mounting hole for communication with the sample inlet connector in the second mounting hole and the waste liquid connector in the third mounting hole.

2. The detection module for water quality detection according to claim 1, characterized in that: The flow collection hole is inverted conical in shape.

3. The detection module for water quality detection according to claim 2, characterized in that: The sample liquid flow channel is horizontally arranged, and the second and third mounting holes are symmetrically arranged at both ends of the sample liquid flow channel.

4. The detection module for water quality detection according to claim 1, characterized in that: The airway is L-shaped.

5. The detection module for water quality detection according to claim 1, characterized in that: The top of the detection seat is provided with a first fixing hole, and the upper adapter plate is fixedly connected to the detection seat through a first fixing member and a first positioning hole; The bottom of the testing seat is provided with a second fixing hole, and the lower adapter plate is fixedly connected to the testing seat through a second fixing member and a second positioning hole.

6. The detection module for water quality detection according to any one of claims 1-5, characterized in that: The front sidewall of the detection seat is connected to the first cover plate, and the rear sidewall of the detection seat is connected to the second cover plate. The first cover plate is provided with a light source mounting groove corresponding to the light source hole, and the light source is installed in the light source mounting groove. The second cover plate is provided with a sensor mounting groove corresponding to the sensor groove, and the sensor is installed in the sensor mounting groove.

7. The detection module for water quality detection according to claim 6, characterized in that: The upper part of the first cover plate is provided with a first notch for facilitating the routing of light source lines, and the upper part of the second cover plate is provided with a second notch for facilitating the routing of sensor lines.

8. The detection module for water quality detection according to claim 6, characterized in that: The first cover plate is fixedly connected to the front side wall of the detection seat by a third fastener, and the second cover plate is fixedly connected to the rear side wall of the detection seat by a fourth fastener.

9. The detection module for water quality detection according to claim 6, characterized in that: The upper and lower adapter plates are made of PEEK, nylon, or PTFE, while the detection seat, the first cover plate, and the second cover plate are made of aluminum alloy.

Images