A handheld water quality detector

Abstract

The application discloses a handheld water quality detector and belongs to the field of water quality detection. The handheld water quality detector comprises a shell, a slot formed in the shell, a detection light source and a light source receiving part fixed to the inner wall of the slot, a anti-scattering treatment assembly connected to the inside of the shell, a hollow ring body fixed to the inner wall of the slot, a flow channel formed in the hollow ring body, a plurality of nozzles fixed to the inner wall of the hollow ring body and communicated with the flow channel, a liquid supply assembly connected to the shell and used for supplying liquid into the flow channel, a hollow rotating ring one rotatably connected to the inside of the shell, a plurality of cleaning brushes one fixed to the inner wall of the hollow rotating ring one and extended into the slot, a plurality of polishing brushes, a driving part connected to the inside of the shell and used for driving the hollow rotating ring one to rotate. The handheld water quality detector can remove water marks on the outer surface of a test tube, avoid changes in optical transmittance caused by water marks, reduce deviation, stabilize absorbance reading, and improve detection precision.

Description

Technical Field

[0001] This invention relates to the field of water quality testing, and more specifically, to a handheld water quality testing instrument. Background Technology

[0002] A handheld water quality analyzer is a portable instrument that integrates multiple online or on-site water quality parameter measurement functions. It is commonly used in scenarios such as environmental monitoring, drinking water safety, online monitoring of industrial emissions, and monitoring of agricultural irrigation water quality.

[0003] To achieve rapid water quality testing, existing technology (Chinese utility model patent with publication number CN214953453U) discloses a multifunctional handheld water quality analyzer. Its testing method involves directly injecting the water sample into the instrument's inlet. This method makes cleaning the inside of the inlet inconvenient. Some existing analyzers also use a method where the water sample is placed in a test tube and then inserted into the instrument. This type of tube-insertion analyzer only requires cleaning the test tube, making cleaning more convenient. However, when using test tubes to collect water samples outdoors, liquid, impurities, and fingerprints adhere to the outer surface of the test tube. Even after manual cleaning, residual water marks remain on the outer surface. These residual water marks alter optical transmittance, causing deviations in the transmittance of the measured wavelength, leading to unstable absorbance readings and affecting the accuracy of the test. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this invention is to provide a handheld water quality tester.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A handheld water quality analyzer includes a housing, a slot inside the housing, a detection light source and a light source receiver fixed to the inner wall of the slot.

[0007] It also includes an anti-scattering treatment assembly connected inside the housing, and the anti-scattering treatment assembly includes a hollow ring fixed to the inner wall of the slot, a flow channel opened inside the hollow ring, multiple nozzles fixed to the inner wall of the hollow ring and connected to the flow channel, a liquid supply assembly connected inside the housing and supplying liquid to the flow channel, a hollow rotating ring 1 rotatably connected inside the housing, multiple cleaning brushes 1 and multiple polishing brushes fixed to the inner wall of the hollow rotating ring 1 and extending into the slot, a drive unit connected inside the housing and driving the hollow rotating ring 1 to rotate, multiple openings opened on the inner wall of the slot and located below the hollow rotating ring 1, two sealing rings fixed to the inner wall of the slot, and multiple drain chambers opened inside the housing and connected to the multiple openings, and the drain port of the drain chamber is opened at the lower end of the housing.

[0008] Furthermore, the liquid supply assembly includes a micro pump body fixed inside the housing and its output end connected to the hollow annular flow channel, and a water storage box located inside the housing. The input end of the micro pump body is connected to the output end of the water storage box. A groove for accommodating the water storage box is provided on one side of the housing, and the water storage box is snapped into the groove.

[0009] Furthermore, the drive unit includes a key-tooth structure integrally formed on the outer surface of the hollow rotating ring, a gear rotatably connected inside the housing and meshing with the key-tooth structure, a servo motor fixed inside the housing, and a heat-conducting part fixed to one side of the outer surface of the servo motor and extending outward through the housing, and the output shaft of the servo motor is fixed to one side of the gear.

[0010] Furthermore, a display touch unit is fixedly connected to one side of the housing, and an energy storage unit and a circuit board are also fixedly connected inside the housing. The circuit board is electrically connected to the energy storage unit, the display touch unit, the detection light source, the light source receiver, and the anti-scattering processing component.

[0011] Furthermore, a protective cover is rotatably connected to one side of the housing, and the protective cover covers the outside of the slot. A charging unit is fixedly connected to one side of the housing, and the charging unit is electrically connected to the energy storage unit.

[0012] Furthermore, the hollow rotating ring 1 is also connected to a plurality of deep cleaning components, and the deep cleaning components include a rotating column rotatably connected inside the hollow rotating ring 1, a gear 2 fixed to one end of the rotating column, a disc body connected to the other end of the rotating column, and a plurality of cleaning brushes 2 fixed to one side of the disc body and extending into the slot. The housing has a movable groove 1 that communicates with the slot, and a toothed key 1 is provided on the inner wall of the movable groove 1. The gear 2 is located in the movable groove 1 and meshes with the toothed key 1.

[0013] Furthermore, multiple arc-shaped flanges are fixedly connected to the inner wall of the first movable groove. A movable rod is movably inserted inside the rotating column and the second gear, with one end of the movable rod fixedly connected to one side of the disc body. The other end of the movable rod extends into the first movable groove and is rotatably connected to a ball bearing. The second movable groove is opened inside the rotating column, and a reset plate and a spring are provided in the second movable groove. The reset plate is fixedly connected to the outside of the movable rod. The two ends of the spring are respectively connected to the inner wall of the second movable groove and one side of the reset plate. Multiple guide strips are fixedly connected to the outer surface of the movable rod, and multiple guide grooves are opened inside the rotating column to accommodate multiple guide strips.

[0014] Furthermore, a pretreatment component is also connected inside the housing, and the pretreatment component includes an air ring fixed inside the housing, a hollow rotating ring II rotatably connected inside the housing and rotatably connected to the upper end of the air ring, an annular cavity opened inside the hollow rotating ring II and connected to the air outlet of the air ring, multiple air outlets opened inside the hollow rotating ring II and connected to the annular cavity, a dynamic sealing part connected to the connection end face of the air ring and the hollow rotating ring II, and a miniature air pump fixed inside the housing and whose output end is connected to the input end of the air ring. The input end of the miniature air pump extends outward through the housing, and an annular groove is opened on the inner wall of the slot to facilitate the exposure of multiple air outlets.

[0015] Furthermore, the air ring includes an annular body rotatably connected inside the housing, a cavity opened inside the annular body, a plurality of alternating partitions fixed to the inner wall of the cavity, an inlet opened on one side of the annular body and connected to the cavity, and an annular exhaust port opened at the upper end of the annular body, and the annular exhaust port is connected to the annular cavity.

[0016] Furthermore, a gear three is rotatably connected inside the housing, and a servo motor two is also fixed inside the housing, with the output shaft of the servo motor two fixedly connected to the gear three. A toothed key three that meshes with the gear three is opened on the outer surface of the hollow rotating ring two. A heat-conducting part two is fixedly connected to one side of the outer surface of the servo motor two, and the heat-conducting part two penetrates the housing and extends outward.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] (1) This solution is equipped with an anti-scattering treatment component. By driving the cleaning brush and the polishing brush to rotate, the cleaning brush first can generate physical shear force on the water droplets and water marks attached to the outer surface of the glass test tube, directly removing the liquid film and trace particles from the surface of the test tube. After the initial cleaning, the polishing brush performs a second "polishing" wipe on the tube wall to further remove fine water marks and fine hairs. The cleaning brush and the polishing brush work together to spray the solution from the nozzle, which can effectively remove water marks on the outer surface of the test tube, avoid changes in optical transmittance due to water marks, reduce deviation, stabilize absorbance reading, and improve detection accuracy.

[0019] (2) This solution is equipped with a deep cleaning component. While the hollow rotating ring rotates, the gear two can contact the key one. The key one drives the gear two, the rotating column and the cleaning brush two to rotate. The cleaning brush two is in perpendicular contact with the test tube surface. When rotating, it forms a tangential friction force. The friction shear force generated can peel off the attached water droplets, water marks, microparticles and even biofilms radially, improving the peeling effect on stubborn water marks.

[0020] (3) In this scheme, an arc-shaped flange is provided in the active groove. When the gear 2 moves in the active groove, the ball contacts the arc-shaped flange. The arc-shaped flange pushes the ball and the moving rod to move. The moving rod moves inside the rotating column and drives the disc and the cleaning brush 2 to move towards the test tube. This allows the cleaning brush 2 to gradually advance from "lightly touching the test tube" to "applying a certain pressure to the surface of the test tube". This gradual contact avoids sudden high impact force and reduces the risk of scratches caused by the abrupt pressing of the bristles. At the same time, it can more deeply peel off stubborn water spots and mineral deposits. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the drain port structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the slot structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 5 This is a front sectional view of the housing of the present invention;

[0026] Figure 6 This is a schematic diagram of the anti-scattering processing component structure of the present invention;

[0027] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B;

[0028] Figure 8 This is a schematic diagram showing the positional relationship between the water storage box, the heat-conducting part, and the shell of the present invention;

[0029] Figure 9 This is a lower sectional view of the housing of the present invention;

[0030] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at point C;

[0031] Figure 11 This is a schematic diagram of the deep cleaning component structure of the present invention;

[0032] Figure 12 This is a cross-sectional view of the rotating column of the present invention;

[0033] Figure 13 This is a schematic diagram of the preprocessing component structure of the present invention.

[0034] Explanation of the labels in the diagram:

[0035] 1. Housing; 11. Energy Storage Unit; 12. Circuit Board; 2. Display Touch Unit; 3. Protective Cover; 4. Charging Unit; 5. Slot; 51. Opening; 52. Sealing Ring; 53. Drainage Chamber; 54. Movable Groove I; 55. Arc-shaped Flange; 56. Tooth Key I; 57. Annular Groove; 6. Detection Light Source; 7. Anti-scattering Treatment Component; 71. Hollow Ring; 711. Nozzle; 72. Hollow Rotating Ring I; 73. Cleaning Brush I; 74. Polishing Brush; 75. Servo Motor I; 76. Gear I; 77. Tooth Key II; 78. Heat Conducting Unit I; 79. Miniature Pump Body; 80. 8. Water storage box; 9. Light source receiver; 10. Deep cleaning assembly; 11. Rotating column; 12. Gear II; 13. Disc; 14. Cleaning brush II; 15. Movable rod; 16. Guide bar; 17. Ball bearing; 18. Movable groove II; 19. Reset plate; 20. Spring; 10. Pretreatment assembly; 11. Air ring; 12. Hollow rotating ring II; 13. Air outlet; 14. Dynamic seal; 15. Partition plate; 16. Servo motor II; 17. Gear III; 18. Gear key III; 19. Miniature air pump; 10. Annular cavity; 111. Heat conduction part II. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1 to 13 A handheld water quality tester includes a housing 1, a slot 5 formed inside the housing 1, a detection light source 6 fixed to the inner wall of the slot 5, and a light source receiver 8.

[0038] It also includes an anti-scattering treatment component 7 connected inside the housing 1, and the anti-scattering treatment component 7 includes a hollow ring 71 fixed to the inner wall of the slot 5, a flow channel opened inside the hollow ring 71, multiple nozzles 711 fixed to the inner wall of the hollow ring 71 and connected to the flow channel, a liquid supply component connected inside the housing 1 and supplying liquid to the flow channel, a hollow rotating ring 72 rotatably connected inside the housing 1, multiple cleaning brushes 73 and multiple polishing brushes 74 fixed to the inner wall of the hollow rotating ring 72 and extending into the slot 5, a drive unit connected inside the housing 1 and driving the hollow rotating ring 72 to rotate, multiple openings 51 opened on the inner wall of the slot 5 and located below the hollow rotating ring 72, two sealing rings 52 fixed to the inner wall of the slot 5, and multiple drain chambers 53 opened inside the housing 1 and connected to the multiple openings 51, and the drain port of the drain chamber 53 is opened at the lower end of the housing 1.

[0039] The liquid supply assembly includes a micro pump body 79 fixed inside the housing 1 and its output end connected to the flow channel of the hollow ring body 71, and a water storage box 80 located inside the housing 1. The input end of the micro pump body 79 is connected to the output end of the water storage box 80. A groove for accommodating the water storage box 80 is opened on one side of the housing 1, and the water storage box 80 is snapped into the groove.

[0040] The drive unit includes a key 77 integrally formed on the outer surface of the hollow rotating ring 72, a gear 76 rotatably connected inside the housing 1 and meshing with the key 77, a servo motor 75 fixed inside the housing 1, and a heat-conducting part 78 fixed on one side of the outer surface of the servo motor 75 and extending outward through the housing 1. The output shaft of the servo motor 75 is fixed to one side of the gear 76.

[0041] The housing 1 is also fixedly connected to a display touch unit 2 on one side, and an energy storage unit 11 and a circuit board 12 are also fixedly connected inside the housing 1. The circuit board 12 is electrically connected to the energy storage unit 11, the display touch unit 2, the detection light source 6, the light source receiving unit 8, and the anti-scattering processing component 7.

[0042] A protective cover 3 is rotatably connected to one side of the housing 1, and the protective cover 3 covers the outside of the slot 5. A charging part 4 is fixedly connected to one side of the housing 1, and the charging part 4 is electrically connected to the energy storage part 11.

[0043] By adopting the above technical solution, rotating the protective cover 3 exposes the slot 5. The anti-scattering processing component 7 is controlled by the display touch unit 2. The test tube containing the water sample to be tested is slowly inserted into the slot 5. As the test tube moves downwards in the slot 5, it first passes through the hollow ring 71. The micro-pump 79 pumps the cleaning solution (which can be deionized water or a low-concentration surfactant solution) from the water storage box 80 into the flow channel within the hollow ring 71. The cleaning solution enters the nozzle 711 from the flow channel and is then discharged from the nozzle 711, spraying a small amount of solution onto the outer surface of the test tube. The liquid moves downwards through the hollow ring 71 into the hollow rotating ring 72. The servo motor 75 drives the gear 76 to rotate, which in turn rotates the hollow rotating ring 72. The cleaning brush 73 on the inner wall of the hollow rotating ring 72 exerts physical shear force on the water droplets and watermarks adhering to the outer surface of the glass test tube, directly removing the liquid film and trace particles from the test tube surface. The polishing brush 74 on the inner wall of the hollow rotating ring 72 performs a secondary "polishing" wipe on the tube wall, further removing fine watermarks and lint, effectively removing... Watermarks on the outer surface of the test tube prevent changes in optical transmittance caused by watermarks, reducing deviation and stabilizing absorbance readings, thus improving detection accuracy. The test tube, passing through the hollow rotating ring 72, continues downward and inserts into two sealing rings 52. The sealing rings 52 are made of rubber; their inner walls contact the outer surface of the test tube to provide a seal, preventing liquid from flowing to the bottom of the slot 5, and to scrape off the cleaned material and liquid from the outer surface of the test tube. The material flows with the liquid from the opening 51 into the drainage chamber 53. Finally... The liquid is discharged from the drain port of the drain chamber 53 and continues to move downward through the two sealing rings 52 until it reaches the bottom of the slot 5 and can no longer move. The detection light source 6 and the light source receiver 8 are controlled by the display touch unit 2. The detection light source 6 emits light of a specific wavelength (such as ultraviolet light or visible light) that passes through the water sample in the test tube. The light source receiver 8 (photoelectric sensor) detects the intensity change of the transmitted light or scattered light and feeds the result back to the circuit board 12. The display touch unit 2 can display the detection data. The above light source detection is a mature detection technology and will not be described in detail here.

[0044] like Figures 9-11 As shown, the hollow rotating ring 72 is also connected to a plurality of deep cleaning components 9. The deep cleaning components 9 include a rotating column 91 rotatably connected inside the hollow rotating ring 72, a gear 92 fixed to one end of the rotating column 91, a disc 93 connected to the other end of the rotating column 91, and a plurality of cleaning brushes 94 fixed to one side of the disc 93 and extending into the slot 5. The housing 1 has an active groove 54 that communicates with the slot 5, and a toothed key 56 is provided on the inner wall of the active groove 54. The gear 92 is located in the active groove 54 and meshes with the toothed key 56.

[0045] By adopting the above technical solution, when the hollow rotating ring 72 rotates, it can drive multiple rotating columns 91 to rotate. When the multiple rotating columns 91 rotate, the gear 92 will contact the key 56. The key 56 drives the gear 92 and the rotating columns 91 to rotate. The rotating columns 91 rotate inside the hollow rotating ring 72. When the rotating columns 91 rotate, they drive the disc 93 and the cleaning brush 94 to rotate. The cleaning brush 94 is in perpendicular contact with the surface of the test tube. When rotating, it forms a tangential friction force. The frictional shear force generated can peel off the attached water droplets, water marks, microparticles and even biofilms radially, improving the peeling effect on stubborn water marks.

[0046] like Figures 9-12 As shown, multiple arc-shaped flanges 55 are fixedly connected to the inner wall of the first movable groove 54. A movable rod 95 is movably inserted into the interior of the rotating column 91 and the second gear 92. One end of the movable rod 95 is fixedly connected to one side of the disc body 93. The other end of the movable rod 95 extends into the first movable groove 54 and is rotatably connected to a ball bearing 96. A second movable groove 97 is opened inside the rotating column 91. A reset plate 98 and a spring 99 are provided in the second movable groove 97. The reset plate 98 is fixedly connected to the outside of the movable rod 95. The two ends of the spring 99 are respectively connected to the inner wall of the second movable groove 97 and one side of the reset plate 98. Multiple guide strips 951 are fixedly connected to the outer surface of the movable rod 95. Multiple guide grooves 951 are opened inside the rotating column 91 to accommodate the multiple guide strips 951.

[0047] By adopting the above technical solution, when gear 2 92 moves in movable groove 1 54, ball 96 contacts arc-shaped flange 55. Arc-shaped flange 55 pushes ball 96 and movable rod 95 to move. Movable rod 95 moves inside rotating column 91 and drives disc 93 and cleaning brush 2 94 to move towards test tube, so that cleaning brush 2 94 can gradually advance from "lightly touching test tube" to "applying a certain pressure to test tube surface". This gradual contact avoids sudden high impact force, reduces the risk of scratches caused by abruptly pressing in the bristles, and can also remove stubborn water spots and mineral deposits more deeply.

[0048] like Figure 5 , Figure 7 and Figure 13As shown, a pretreatment component 10 is also connected inside the housing 1. The pretreatment component 10 includes an air ring 101 fixed inside the housing 1, a hollow rotating ring 102 rotatably connected inside the housing 1 and rotatably connected to the upper end of the air ring 101, an annular cavity 110 opened inside the hollow rotating ring 102 and connected to the air outlet of the air ring 101, multiple air outlets 103 opened inside the hollow rotating ring 102 and connected to the annular cavity 110, a dynamic sealing part 104 connected to the end face of the connection between the air ring 101 and the hollow rotating ring 102 (gas dynamic sealing technology is a mature existing technology. In this application, a magnetic fluid sealing method can be used for end face dynamic sealing, which will not be described in detail here), a miniature air pump 109 fixed inside the housing 1 and whose output end is connected to the input end of the air ring 101, and the input end of the miniature air pump 109 extends outward through the housing 1. The inner wall of the slot 5 is provided with an annular groove 57 to facilitate the exposure of multiple air outlets 103.

[0049] The air ring 101 includes an annular body rotatably connected inside the housing 1, a cavity opened inside the annular body, a plurality of alternating partitions 105 fixed to the inner wall of the cavity, an inlet opened on one side of the annular body and connected to the cavity, and an annular exhaust port opened at the upper end of the annular body, and the annular exhaust port is connected to the annular cavity 110.

[0050] Gear 3 107 is rotatably connected inside the housing 1. Servo motor 2 106 is also fixed inside the housing 1, and the output shaft of servo motor 2 106 is fixed to gear 3 107. The outer surface of hollow rotating ring 2 102 is provided with tooth key 3 108 that meshes with gear 3 107. A heat-conducting part 2 111 is fixed to one side of the outer surface of servo motor 2 106, and the heat-conducting part 2 111 penetrates the housing 1 and extends outward.

[0051] By adopting the above technical solution, before the test tube is inserted into the slot 5, the micro air pump 109 can deliver gas into the air ring 101. After the gas is evenly distributed by multiple baffles 105, the air discharged from the annular exhaust port at the upper end of the air ring 101 is evenly discharged and enters the interior of the hollow rotating ring 102. It then enters the air outlet 103 from the annular cavity 110 inside the hollow rotating ring 102, and finally exits from the air outlet 103 and blows onto the outer surface of the test tube. The airflow discharged from the air outlet 103 can first blow away loose dust, fiber debris, and particulate matter from the surface of the test tube, reducing the subsequent brush load. If water droplets or liquid films remain on the surface of the test tube, the airflow... It can also disperse large droplets and remove some of the surface water film, thus reducing the amount of water absorbed by the bristles. The servo motor 2 106 drives the gear 3 107 to rotate, which in turn drives the hollow rotating ring 2 102 to rotate. The air outlet 103 also moves with the rotation of the hollow rotating ring 2 102, forming a spiral or ring-shaped uniform coverage. This ensures that every inch of the test tube surface is treated with the same intensity of airflow. Not only does it ensure uniform coverage around the circumference, but it also achieves a more thorough and efficient pre-cleaning by utilizing the centrifugal force generated by rotation and the gas-induced eddies, thereby providing the best workpiece surface condition for the subsequent brushing process.

[0052] Instructions for use: Rotate the protective cover 3 to expose the slot 5. Control the anti-scattering processing component 7 via the display touch unit 2. Slowly insert the test tube containing the water sample into the slot 5. As the test tube moves downward in the slot 5, the anti-scattering processing component 7 inside the housing 1 can generate physical shear force on the water droplets and watermarks attached to the outer surface of the glass test tube, directly removing the liquid film and trace particles from the surface of the test tube, taking away fine watermarks and fine lint. It can effectively remove watermarks on the outer surface of the test tube, avoid changes in optical transmittance due to watermarks, reduce deviation, stabilize absorbance readings, and improve detection accuracy. Then rotate the protective cover 3 to cover the upper part of the test tube. The protective cover 3 acts as a light shield. Then control the detection light source 6 and the light source receiver 8 via the display touch unit 2. The detection light source 6 emits light of a specific wavelength that passes through the water sample in the test tube. The light source receiver 8 detects the intensity change of the transmitted or scattered light and feeds the result back to the circuit board 12. The display touch unit 2 can display the detection data.

[0053] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A handheld water quality analyzer, comprising a housing, a slot formed inside the housing, a detection light source and a light source receiver fixed to the inner wall of the slot, characterized in that: It also includes an anti-scattering treatment component connected inside the housing, and the anti-scattering treatment component includes a hollow ring fixed to the inner wall of the slot, a flow channel opened inside the hollow ring, multiple nozzles fixed to the inner wall of the hollow ring and connected to the flow channel, a liquid supply component connected inside the housing and supplying liquid to the flow channel, a hollow rotating ring 1 rotatably connected inside the housing, multiple cleaning brushes 1 and multiple polishing brushes fixed to the inner wall of the hollow rotating ring 1 and extending into the slot, a drive unit connected inside the housing and driving the hollow rotating ring 1 to rotate, multiple openings opened on the inner wall of the slot and located below the hollow rotating ring 1, two sealing rings fixed to the inner wall of the slot, and multiple drain chambers opened inside the housing and connected to the multiple openings, and the drain port of the drain chamber is opened at the lower end of the housing; The hollow rotating ring 1 is also connected to a number of deep cleaning components. The deep cleaning components include a rotating column rotatably connected inside the hollow rotating ring 1, a gear 2 fixed to one end of the rotating column, a disc body connected to the other end of the rotating column, and a number of cleaning brushes 2 fixed to one side of the disc body and extending into the slot. The housing has a movable groove 1 that communicates with the slot, and a toothed key 1 is provided on the inner wall of the movable groove 1. The gear 2 is located in the movable groove 1 and meshes with the toothed key 1. Multiple arc-shaped flanges are fixedly connected to the inner wall of the first movable groove. A movable rod is movably inserted inside the rotating column and the second gear, and one end of the movable rod is fixedly connected to one side of the disc. The other end of the movable rod extends into the first movable groove and is rotatably connected to a ball. The second movable groove is opened inside the rotating column, and a reset plate and a spring are provided in the second movable groove. The reset plate is fixedly connected to the outside of the movable rod. The two ends of the spring are respectively connected to the inner wall of the second movable groove and one side of the reset plate. Multiple guide strips are fixedly connected to the outer surface of the movable rod, and multiple guide grooves are opened inside the rotating column to accommodate multiple guide strips. The housing is also connected to a pretreatment component, which includes an air ring fixed inside the housing. The air ring includes an annular body rotatably connected inside the housing, a cavity opened inside the annular body, a plurality of alternately arranged partitions fixed to the inner wall of the cavity, an inlet opened on one side of the annular body and connected to the cavity, and an annular exhaust port opened at the upper end of the annular body. The pretreatment component also includes a hollow rotating ring II rotatably connected inside the housing and rotatably connected to the upper end of the air ring, an annular cavity opened inside the hollow rotating ring II and connected to the annular exhaust port, multiple air outlets opened inside the hollow rotating ring II and connected to the annular cavity, a dynamic sealing part connected to the connection end face of the air ring and the hollow rotating ring II, and a miniature air pump fixed inside the housing and whose output end is connected to the input end of the air ring. The input end of the miniature air pump extends outward through the housing, and the inner wall of the slot is provided with an annular groove to facilitate the exposure of multiple air outlets.

2. The handheld water quality analyzer according to claim 1, characterized in that: The liquid supply assembly includes a miniature pump body fixed inside the housing and whose output end is connected to the hollow annular flow channel, and a water storage box located inside the housing. The input end of the miniature pump body is connected to the output end of the water storage box. A groove for accommodating the water storage box is opened on one side of the housing, and the water storage box is snapped into the groove.

3. A handheld water quality analyzer according to claim 2, characterized in that: The drive unit includes a key-tooth structure integrally formed on the outer surface of a hollow rotating ring, a gear rotatably connected inside the housing and meshing with the key-tooth structure, a servo motor fixed inside the housing, and a heat-conducting part fixed to one side of the outer surface of the servo motor and extending outward through the housing. The output shaft of the servo motor is fixed to one side of the gear.

4. A handheld water quality analyzer according to claim 3, characterized in that: A display touch unit is also fixedly connected to one side of the housing, and an energy storage unit and a circuit board are also fixedly connected inside the housing. The circuit board is electrically connected to the energy storage unit, the display touch unit, the detection light source, the light source receiver, and the anti-scattering processing component.

5. A handheld water quality analyzer according to claim 4, characterized in that: A protective cover is rotatably connected to one side of the housing, and the protective cover is placed outside the slot. A charging unit is fixedly connected to one side of the housing, and the charging unit is electrically connected to the energy storage unit.

6. A handheld water quality analyzer according to claim 5, characterized in that: Gear 3 is rotatably connected inside the housing. Servo motor 2 is also fixed inside the housing, and the output shaft of servo motor 2 is fixed to gear 3. A toothed key 3 that meshes with gear 3 is opened on the outer surface of hollow rotating ring 2. A heat-conducting part 2 is fixed to one side of the outer surface of servo motor 2, and the heat-conducting part 2 penetrates the housing and extends outward.

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