Portable automatic water quality tester

Abstract

The present invention relates to a portable automatic water quality detector. The portable automatic water quality detector includes a detection body and a water sample detection cartridge. The detection body includes a photoelectric detection module, a light source, a detection slot, a display, and a control circuit module. The water sample detection cartridge is detachably installed and inserted in the detection slot. The water sample detection cartridge includes a water sample chamber, a pre-installed reagent chamber, and a water sample filling port. The pre-installed reagent chamber is provided with an inner filling hole at the inner end, and an outer opening at the outer end. The pre-installed reagent chamber is provided with a piston member that can move along the outer opening to the inner filling hole. Compared with the prior art, the present invention is simple to operate and easy to carry. After the operator inserts the water sample detection cartridge containing the water sample into the detection slot of the detection body, the water quality of the water sample inside the water sample detection cartridge can be tested by starting the test through the control circuit module, which reduces the operator's operating steps and improves the detection efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of water quality detection, and in particular relates to a portable automatic water quality detector. Background Art

[0002] Environmental protection is a growing concern. Water pollution is a key component of this issue. To protect the aquatic environment on which humans depend and to ensure the hygiene of drinking water, water quality testing is essential for both production and daily life. Water quality testing equipment is widely used in power plants, sewage treatment plants, textile mills, pharmaceutical factories, environmental protection departments, epidemic prevention agencies, and hospitals. It measures various water quality indicators, including pH, metal ions, and water hardness.

[0003] Existing water quality testing methods include manual colorimetric testing using a test kit and semi-automatic spectrophotometric colorimetric testing. The disadvantages of the manual colorimetric testing method include large visual errors, low manual interpretation accuracy, the ability to test only one sample at a time, cumbersome operation, a long test time of eight to ten minutes per indicator, and the need for frequent cleaning of the corresponding consumables. The disadvantages of the semi-automatic spectrophotometric colorimetric method include the ability to test only one sample at a time, cumbersome operation, a long test time of eight to ten minutes per indicator, the exclusive use of colorimetry, the inability to test items requiring titration, and the need for frequent cleaning of the corresponding consumables.

[0004] Existing water quality detectors are large, complex, inconvenient to carry, cumbersome to operate, and time-consuming to detect. For example, patent document CN111474170A discloses a detection system for detecting calcium and magnesium ion content and total alkalinity in water, which has a complex internal structure and cumbersome operation.

[0005] Therefore, there is an urgent need for a technical solution that is easy to carry and simple to operate. Summary of the Invention

[0006] The purpose of the present invention is to provide a portable automatic water quality detector to solve the problems that the existing water quality detector is inconvenient to carry and cumbersome to operate.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A portable automatic water quality detector includes a detection body and a water sample detection cartridge, the detection body including a photoelectric detection module, a light source, a detection slot, a display and a control circuit module, the photoelectric detection module is arranged corresponding to the light source, the detection slot is arranged correspondingly between the photoelectric detection module and the light source, the water sample detection cartridge is detachably installed and inserted in the detection slot, the water sample detection cartridge includes a water sample chamber, a pre-installed reagent chamber and a water sample filling port, the water sample chamber is respectively arranged corresponding to the photoelectric detection module and the light source, the pre-installed reagent chamber is provided with an inner filling hole at the inner end, the pre-installed reagent chamber is provided with an outer opening at the outer end, the pre-installed reagent chamber is internally provided with a piston member that can move along the outer opening to the inner filling hole, the interior of the pre-installed reagent chamber is connected to the interior of the water sample chamber through the inner filling hole, the water sample filling port is connected to the interior of the water sample chamber, and the control circuit module is electrically connected to the photoelectric detection module, the light source and the display respectively.

[0009] As a preferred solution of the portable automatic water quality detector described in the present invention, the detection body also includes a reagent filling module, the reagent filling module includes a filling push rod mechanism and a filling drive mechanism, the filling push rod mechanism is driven and connected to the filling drive mechanism, the filling push rod mechanism is arranged corresponding to the outer opening of the pre-installed reagent chamber, the filling drive mechanism is used to drive the filling push rod mechanism to push the piston member to move along the outer opening to the inner filling hole, and the control circuit module is electrically connected to the filling drive mechanism.

[0010] As a preferred solution of the portable automatic water quality detector described in the present invention, the water sample detection card box includes three pre-loaded reagent chambers, and the filling push rod mechanism includes a first elastic push rod, a second elastic push rod, a rigid push rod and a push rod carrier. The first elastic push rod, the second elastic push rod and the rigid push rod are all arranged on the push rod carrier, and the push rod carrier is driven and connected to the filling drive mechanism. The length of the first elastic push rod is greater than the length of the second elastic push rod, and the length of the second elastic push rod is greater than the length of the rigid push rod. The first elastic push rod, the second elastic push rod and the rigid push rod are respectively arranged in one-to-one correspondence with the three pre-loaded reagent chambers, and the first elastic push rod, the second elastic push rod and the rigid push rod are respectively used to push the piston parts inside the corresponding pre-loaded reagent chambers.

[0011] As a preferred solution of the portable automatic water quality detector described in the present invention, the water sample detection card box also includes an information module, which stores the driving parameters of the filling drive mechanism. The detection body also includes an identification module electrically connected to the control circuit module, and the identification module is used to identify and read the driving parameters of the filling drive mechanism stored in the information module.

[0012] As a preferred embodiment of the portable automatic water quality detector of the present invention, a sealing film is provided at the connection point between the inner filling hole and the interior of the water sample chamber.

[0013] As a preferred solution of the portable automatic water quality detector described in the present invention, the piston member is provided with a puncture portion for puncturing the sealing film on a side facing the inner filling hole.

[0014] As a preferred solution of the portable automatic water quality detector described in the present invention, the detection body further includes a wireless communication module and a positioning module, and the control circuit module is electrically connected to the wireless communication module and the positioning module respectively.

[0015] As a preferred solution of the portable automatic water quality detector described in the present invention, the detection body further includes a heating module for heating the water sample chamber, and the control circuit module is electrically connected to the heating module.

[0016] As a preferred solution of the portable automatic water quality detector described in the present invention, the detection body also includes a rechargeable power supply electrically connected to the control circuit module.

[0017] As a preferred solution of the portable automatic water quality detector described in the present invention, a filtering structure is provided inside the water sample filling port.

[0018] The beneficial effects of the present invention are as follows: the present invention is simple to operate and easy to carry; after the operator inserts the water sample detection card box containing the water sample into the detection slot of the detection body, the water quality of the water sample inside the water sample detection card box can be tested by starting the detection through the control circuit module, which reduces the operator's operating steps and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural diagram of the water sample detection cartridge in the present invention.

[0021] Figure 3 Schematic diagram of the structure of the pre-installed reagent compartment in the present invention.

[0022] Figure 4 This is a working principle diagram of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the connection between the inner filling hole and the interior of the water sample chamber in the present invention.

[0024] In the picture:

[0025] 1-Detection body; 11-Photoelectric detection module; 12-Light source; 13-Detection slot; 14-Reagent filling module; 1411-First elastic push rod; 1412-Second elastic push rod; 1413-Rigid push rod; 1414-Push rod carrier; 1421-High-precision stepping motor; 1422-Drive screw; 15-Control circuit module; 16-Display;

[0026] 2-water sample detection cartridge; 21-water sample chamber; 211-sealing film; 22-pre-installed reagent chamber; 221-inner filling hole; 222-outer opening; 223-piston; 23-water sample filling port; 24-information module. DETAILED DESCRIPTION

[0027] To make the technical solutions and advantages of the present invention more clear, the present invention and its beneficial effects will be described in further detail below with reference to specific implementation methods and accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0028] As a precaution, it should be noted that the numerals used herein ("first," "second," "third," ...) serve primarily (only) to distinguish between a plurality of similar objects, variables, or processes, i.e., they do not necessarily prescribe a correlation and / or sequence between these objects, variables, or processes. If a correlation and / or sequence is required, this will be explicitly stated here or will become apparent to a person skilled in the art upon consideration of the specifically described embodiments.

[0029] The portable automatic water quality detector includes a detection body 1 and a water sample detection cartridge 2. The detection body 1 includes a photoelectric detection module 11, a light source 12, a detection slot 13, a display 16 and a control circuit module 15. The photoelectric detection module 11 is correspondingly arranged with the light source 12, and the detection slot 13 is correspondingly arranged between the photoelectric detection module 11 and the light source 12. The water sample detection cartridge 2 is detachably installed and inserted in the detection slot 13. The water sample detection cartridge 2 includes a water sample chamber 21, a pre-installed reagent chamber 22 and a water sample filling port 23. The water sample chamber 21 is respectively connected to the photoelectric detection module 1 1 and light source 12 are arranged correspondingly. The pre-installed reagent chamber 22 is provided with an inner filling hole 221 at its inner end and an outer opening 222 at its outer end. The pre-installed reagent chamber 22 is internally provided with a piston member 223 that can move from the outer opening 222 to the inner filling hole 221. The interior of the pre-installed reagent chamber 22 is connected to the interior of the water sample chamber 21 through the inner filling hole 221, and the water sample filling port 23 is connected to the interior of the water sample chamber 21. The control circuit module 15 is electrically connected to the photoelectric detection module 11, the light source 12, and the display 16 respectively. Specifically, the photoelectric detection module 11 is a high-sensitivity photoelectric sensor; the light source 12 is an LED light source; and the display 16 is a liquid crystal display.

[0030] It should be noted that the detection principle of the photoelectric detection module 11 is spectrophotometric titration, which is an analytical method that combines titration operation with absorbance measurement. A certain amount of detection reagent is titrated into the water sample to be detected, and the absorbance of the water sample system to be detected at an appropriate wavelength is measured at the same time. The absorbance is plotted against the amount of titrant (called a photometric titration curve) to determine the reaction end point. This method can not only be applied to coordination, acid-base, and redox reactions, but can sometimes also be used for precipitation reactions. Its characteristic is that the determination of the end point is more sensitive and accurate than the indicator method, and it can also be used for the titration of colored solutions. Specifically, the photoelectric detection module 11 can be used to detect at least one water quality indicator among pH value, phosphate content, ammonia nitrogen content, nitrite content, total alkalinity, calcium ions and water hardness.

[0031] The working principle of this embodiment is as follows: when the detection body 1 is in the initial state, the water sample detection cartridge 2 is not inserted into its detection slot 13. First, the water sample to be detected is added to the water sample detection cartridge 2; specifically, the water sample to be detected is added to the water sample chamber 21 through the water sample filling port 23. Then, the water sample detection cartridge 2 containing the water sample to be detected is installed and inserted into the detection slot 13 of the detection body 1. Subsequently, the photoelectric detection module 11 and the light source 12 are activated by the control circuit module 15. The operator manually pushes the piston 223 inside the pre-installed reagent chamber 22 along its outer opening 222 to the inner filling hole 221, thereby filling the reagent inside the pre-installed reagent chamber 22 into the water sample chamber 21, and then enabling the photoelectric detection module 11 to perform water quality detection on the water sample in the water sample chamber 21. Finally, the operator views the water quality index value of the water sample through the display 16. After the test is completed, the water sample test cartridge 2 is removed from the test slot 13 and the test body 1 is restored to its initial state. In addition, before the test, a blank water sample test cartridge 2 can be used for calibration, in which the pre-installed reagent compartment 22 does not contain any reagent and the water sample compartment 21 contains distilled water.

[0032] This embodiment has the following beneficial effects: it is simple to operate and portable; after the operator inserts the water sample detection cartridge 2 containing the water sample into the detection slot 13 of the detection body 1, the control circuit module 15 initiates the test to perform a water quality test on the water sample inside the water sample detection cartridge 2, thus reducing the number of steps required by the operator and improving the test efficiency. This embodiment can complete the test of one water quality indicator within five minutes.

[0033] Preferably, the detection body 1 also includes a reagent filling module 14, which includes a filling push rod mechanism and a filling drive mechanism. The filling push rod mechanism is driven and connected to the filling drive mechanism. The filling push rod mechanism is arranged corresponding to the outer opening 222 of the pre-installed reagent chamber 22. The filling drive mechanism is used to drive the filling push rod mechanism to push the piston 223 to move along the outer opening 222 to the inner filling hole 221, and the control circuit module 15 is electrically connected to the filling drive mechanism. The specific working principle is as follows: after the water sample detection cartridge 2 containing the water sample to be tested is installed and inserted into the detection slot 13 of the detection body 1, the photoelectric detection module 11, the light source 12, and the filling drive mechanism are activated through the control circuit module 15. The filling drive mechanism drives the filling push rod mechanism to push the piston member 223 inside the pre-installed reagent chamber 22 along its outer opening 222 to the inner filling hole 221, thereby allowing the reagent inside the pre-installed reagent chamber 22 to be filled into the water sample chamber 21, thereby enabling the photoelectric detection module 11 to perform water quality testing on the water sample in the water sample chamber 21. Through the above-mentioned configuration, the degree of automated detection of this embodiment is improved, the number of operating steps for the operator is further reduced, and the detection efficiency is further improved.

[0034] Preferably, the water sample detection card box 2 includes three pre-loaded reagent chambers 22, and the filling push rod mechanism includes a first elastic push rod 1411, a second elastic push rod 1412, a rigid push rod 1413 and a push rod carrier 1414. The first elastic push rod 1411, the second elastic push rod 1412 and the rigid push rod 1413 are all arranged on the push rod carrier 1414, and the push rod carrier 1414 is driven and connected to the filling drive mechanism. The length of the first elastic push rod 1411 is greater than the length of the second elastic push rod 1412, and the length of the second elastic push rod 1412 is greater than the length of the rigid push rod 1413. The first elastic push rod 1411, the second elastic push rod 1412 and the rigid push rod 1413 are respectively arranged in one-to-one correspondence with the three pre-loaded reagent chambers 22, and the first elastic push rod 1411, the second elastic push rod 1412 and the rigid push rod 1413 are respectively used to push the piston member 223 inside the corresponding pre-loaded reagent chamber 22. Through the above-mentioned setting, after starting the filling drive mechanism, the filling drive mechanism causes the first elastic push rod 1411, the second elastic push rod 1412 and the rigid push rod 1413 to push the corresponding piston parts 223 inside the pre-loaded reagent chamber 22 in sequence through the push rod carrier 1414, so that the reagents inside the three pre-loaded reagent chambers 22 are sequentially filled into the water sample chamber 21. The specific process is: first, under the drive of the filling drive mechanism, the first elastic push rod 1411 first pushes and squeezes the piston part 223 inside its corresponding pre-loaded reagent chamber 22, so that the reagent inside the pre-loaded reagent chamber 22 is filled into the water sample chamber 21; then, under the drive of the filling drive mechanism, the second elastic push rod 1412 pushes and squeezes the piston part 223 inside its corresponding pre-loaded reagent chamber 22, so that the reagent inside the pre-loaded reagent chamber 22 is filled into the water sample chamber 21. At this time, since the first elastic push rod 1411 has the ability to elastically contract, the first elastic push rod 1411 will be squeezed and contracted to become shorter, so the first elastic push rod 1411 The push rod 1411 does not hinder the pushing of the second elastic push rod 1412 and the rigid push rod 1413; finally, under the drive of the filling drive mechanism, the rigid push rod 1413 pushes and squeezes the piston member 223 inside its corresponding pre-loaded reagent chamber 22, so that the reagent inside the pre-loaded reagent chamber 22 is filled into the water sample chamber 21. At this time, since the first elastic push rod 1411 and the second elastic push rod 1412 have the ability to elastically contract, the first elastic push rod 1411 and the second elastic push rod 1412 will be squeezed and shortened, so the first elastic push rod 1411 and the second elastic push rod 1412 do not hinder the pushing of the rigid push rod 1413. Among them, since the rigid push rod 1413 does not undergo elastic deformation, its pushing accuracy is high, and it can accurately add the reagent inside its corresponding pre-loaded reagent chamber 22 to the water sample chamber 21, so that this embodiment can achieve the function of accurate titration and filling.

[0035] In order to clearly illustrate the working principle of this embodiment, take the water hardness and water quality indicators of a water sample as an example:

[0036] A water sample detection cartridge 2 for detecting water hardness and water quality indicators is used. The interiors of the three pre-installed reagent compartments 22 in the water sample detection cartridge 2 are respectively filled with ammonia reagent, chrome black T reagent and EDTA solution. The water sample to be detected is added into the interior of the water sample detection cartridge 2, and then the water sample detection cartridge 2 is inserted and installed in the detection slot 13 of the detection body 1. The photoelectric detection module 11, the light source 12 and the filling drive mechanism are started by the control circuit module 15. At this time, the specific process is: first, under the drive of the filling drive mechanism, the first elastic push rod 1411 first pushes and squeezes the piston member 223 inside the corresponding pre-installed reagent compartment 22, so that the ammonia reagent inside the pre-installed reagent compartment 22 is filled into the water sample compartment 21; then, under the drive of the filling drive mechanism, the second elastic push rod 1412 second pushes and squeezes the piston member 223 inside the corresponding pre-installed reagent compartment 22, so that the chrome black T reagent inside the pre-installed reagent compartment 22 is filled into the water sample compartment 21; finally, in the filling drive mechanism, Driven by the injection drive mechanism, the rigid push rod 1413 pushes and squeezes the piston part 223 inside the corresponding pre-installed reagent chamber 22 for the third time, so that the EDTA solution inside the pre-installed reagent chamber 22 is accurately titrated and filled into the water sample chamber 21; at this time, every time a drop of EDTA solution is added, the photoelectric detection module 11 will detect the color once until a signal of a sudden color change is received, and the driving of the injection drive mechanism is stopped to stop the accurate titration and filling of the EDTA solution into the water sample chamber 21, and finally the amount of EDTA solution is calculated by calculating the driving stroke of the injection drive mechanism, thereby calculating the water hardness and water quality index value of the water sample.

[0037] Preferably, the filling drive mechanism includes a high-precision stepping motor 1421 and a driving screw 1422 drivingly connected to the high-precision stepping motor 1421. The push rod carrier 1414 is drivingly connected to the high-precision stepping motor 1421 via the driving screw 1422. An appropriate structure can be selected according to actual conditions.

[0038] Preferably, the water sample detection cartridge 2 further includes an information module 24, which stores the driving parameters of the filling drive mechanism. The detection body 1 further includes an identification module electrically connected to the control circuit module 15, and the identification module is used to identify the filling drive mechanism driving parameters stored in the information module 24. Through the above configuration, after the water sample detection cartridge 2 is installed and inserted into the detection slot 13 of the detection body 1, the identification module in the detection body 1 can identify the filling drive mechanism driving parameters stored in the information module 24, thereby enabling the filling drive mechanism to be driven according to the driving parameters, thereby enabling the detection body 1 to automatically drive the detection. This makes this embodiment compatible with multiple detection indicators without the need for operator conversion. The operator can select the corresponding water sample detection cartridge 2 based on the corresponding water quality indicator value detected, thereby increasing the applicability of this embodiment. Specifically, the information module 24 is a QR code module or an IC radio frequency module; the identification module is a QR code recognition module or an IC radio frequency identification module.

[0039] Preferably, if Figure 5 As shown, a sealing film 211 is provided at the connection between the inner filling hole 221 and the interior of the water sample chamber 21. The above arrangement prevents the reagent inside the pre-installed reagent chamber 22 from leaking into the water sample chamber 21. When the filling drive mechanism drives the filling push rod mechanism to push the piston member 223 inside the pre-installed reagent chamber 22 along its outer opening 222 to the inner filling hole 221, under the action of the filling drive mechanism, the pressure inside the pre-installed reagent chamber 22 can break the sealing film 211 so that the reagent inside the pre-installed reagent chamber 22 can be filled into the water sample chamber 21.

[0040] Preferably, the piston member 223 is provided with a puncture portion for piercing the sealing membrane 211 on the side facing the inner filling hole 221. With this arrangement, when the filling drive mechanism drives the filling push rod mechanism to push the piston member 223 inside the pre-loaded reagent chamber 22 along its outer opening 222 toward the inner filling hole 221, the puncture portion can pierce the sealing membrane 211, allowing the reagent inside the pre-loaded reagent chamber 22 to be filled into the water sample chamber 21.

[0041] Preferably, the detection unit 1 also includes a wireless communication module and a positioning module, and the control circuit module 15 is electrically connected to the wireless communication module and the positioning module, respectively. Through this configuration, the detection unit 1 is capable of wireless communication via the wireless communication module, and the detection unit 1 is capable of geographical location via the positioning module. Specifically, the wireless communication module is a Bluetooth module, a LoRa module, a WiFi module, a 4G module, or a 5G module; the positioning module is a GPS device.

[0042] Preferably, the detection body 1 further comprises a heating module for heating the water sample chamber 21, and the control circuit module 15 is electrically connected to the heating module. Through the above configuration, this embodiment can increase the temperature of the water sample chamber 21 through the heating module to increase the detection speed.

[0043] Preferably, the detection body 1 further comprises a rechargeable power supply electrically connected to the control circuit module 15. Through the above arrangement, the rechargeable power supply can provide power for the detection body 1, which is convenient for carrying outside.

[0044] Preferably, a filter structure is provided inside the water sample filling port 23. Through the above arrangement, this embodiment can filter out impurities in the water sample through the filter structure to improve the accuracy of the detection. Specifically, the filter structure is a filter element.

[0045] Preferably, a stirring mechanism is provided within the water sample chamber 21. When the water sample detection cartridge 2 is installed and inserted into the detection slot 13, the stirring mechanism is electrically connected to the control circuit module 15. Through this arrangement, this embodiment can use the stirring mechanism to mix the reagents added to the water sample chamber 21, thereby improving the detection speed. Specifically, the stirring mechanism includes a magnetic stirring mechanism and a bubble stirring mechanism.

[0046] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. Portable automatic water quality detector, characterized by: The invention comprises a detection body (1) and a water sample detection cartridge (2), wherein the detection body (1) comprises a photoelectric detection module (11), a light source (12), a detection slot (13), a display (16) and a control circuit module (15), wherein the photoelectric detection module (11) is arranged correspondingly to the light source (12), and the detection slot (13) is arranged correspondingly between the photoelectric detection module (11) and the light source (12), and the water sample detection cartridge (2) is detachably installed and inserted into the detection slot (13), and the water sample detection cartridge (2) comprises a water sample chamber (21), a pre-installed reagent chamber (22) and a water sample filling port (23), wherein the water sample chamber (21) is respectively connected to the photoelectric detection module (11) and the light source (12). (12) correspondingly arranged, the pre-installed reagent chamber (22) is provided with an inner filling hole (221) at the inner end, the pre-installed reagent chamber (22) is provided with an outer opening (222) at the outer end, the pre-installed reagent chamber (22) is provided with a piston member (223) that can move along the direction from the outer opening (222) to the inner filling hole (221), the interior of the pre-installed reagent chamber (22) is communicated with the interior of the water sample chamber (21) through the inner filling hole (221), the water sample filling port (23) is communicated with the interior of the water sample chamber (21), and the control circuit module (15) is electrically connected to the photoelectric detection module (11), the light source (12) and the display (16) respectively; The detection body (1) further includes a reagent filling module (14), the reagent filling module (14) including a filling push rod mechanism and a filling drive mechanism, the filling push rod mechanism being drivingly connected to the filling drive mechanism, the filling push rod mechanism being arranged corresponding to the outer opening (222) of the pre-installed reagent chamber (22), the filling drive mechanism being used to drive the filling push rod mechanism to push the piston member (223) to move along the outer opening (222) to the inner filling hole (221), and the control circuit module (15) being electrically connected to the filling drive mechanism; The water sample detection cartridge (2) comprises three pre-installed reagent chambers (22), the filling push rod mechanism comprises a first elastic push rod (1411), a second elastic push rod (1412), a rigid push rod (1413) and a push rod carrier (1414), the first elastic push rod (1411), the second elastic push rod (1412) and the rigid push rod (1413) are all arranged on the push rod carrier (1414), the push rod carrier (1414) is connected to the filling drive mechanism, the length of the first elastic push rod (1411) is greater than the length of the second elastic push rod (1412). The length of the second elastic push rod (1412) is greater than the length of the rigid push rod (1413), the first elastic push rod (1411), the second elastic push rod (1412) and the rigid push rod (1413) are respectively arranged in a one-to-one correspondence with the three pre-installed reagent chambers (22), and the first elastic push rod (1411), the second elastic push rod (1412) and the rigid push rod (1413) are respectively used to push the piston member (223) inside the corresponding pre-installed reagent chamber (22).

2. The portable automatic water quality detector according to claim 1, characterized in that: The water sample detection cartridge (2) further comprises an information module (24), wherein the information module (24) stores driving parameters of the filling drive mechanism. The detection body (1) further comprises an identification module electrically connected to the control circuit module (15), wherein the identification module is used to identify and read the driving parameters of the filling drive mechanism stored in the information module (24).

3. The portable automatic water quality detector according to claim 1, characterized in that: A sealing film (211) is provided at the connection point between the inner filling hole (221) and the interior of the water sample chamber (21).

4. The portable automatic water quality detector according to claim 3, characterized in that: The piston member (223) is provided with a puncture portion for puncturing the sealing film (211) on a side facing the inner filling hole (221).

5. The portable automatic water quality detector according to claim 1, characterized in that: The detection body (1) further comprises a wireless communication module and a positioning module, and the control circuit module (15) is electrically connected to the wireless communication module and the positioning module respectively.

6. The portable automatic water quality detector according to claim 1, characterized in that: The detection body (1) further comprises a heating module for heating the water sample chamber (21), and the control circuit module (15) is electrically connected to the heating module.

7. The portable automatic water quality detector according to claim 1, characterized in that: The detection body (1) also includes a rechargeable power supply electrically connected to the control circuit module (15).

8. The portable automatic water quality detector according to claim 1, characterized in that: The water sample filling port (23) is internally provided with a filtering structure.

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