Domestic drinking water detection equipment and detection method thereof

Abstract

The invention relates to the technical field of drinking water detection, and discloses domestic drinking water detection equipment, which comprises a mixing mechanism for mixing a medicament and a water sample; the auxiliary mechanism is arranged below the mixing mechanism, and the auxiliary mechanism is used for mounting the mixing mechanism; and the clamping mechanism is arranged in front of the mixing mechanism. According to the invention, the mixing mechanism is arranged, specifically, a gear at the top is rotated, so that the gear at the bottom is driven by meshing connection to rotate clockwise, then a short rotating rod is driven to rotate during clockwise rotation, and a sliding block is driven to move through a long rotating rod rotationally connected with the short rotating rod, so that the sliding block reciprocates left and right along the sliding rod; therefore, the medicament can be more fully mixed with the water sample through left-right shaking, the measurement error caused by non-uniform mixing is reduced, and the accuracy of detection data is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking water detection, and in particular to a domestic drinking water detection device and a detection method thereof. Background Art

[0002] Drinking water testing is the process of assessing the quality of drinking water supplied to the public. It aims to ensure that the water quality meets national or regional health standards and protects public health. Drinking water testing uses a series of chemical, physical, and biological tests to confirm whether the pH value, turbidity, residual chlorine, total bacteria count, E. coli, heavy metals, and organic pollutants in the water meet the regulations, ensuring the safety and reliability of drinking water.

[0003] Chemicals are used in the process of drinking water testing. These chemicals are placed in test tubes and mixed with water samples. However, these chemicals may be locally aggregated under the influence of external factors, so that the reaction can only occur in local areas, affecting the accuracy of the test values. For this reason, we propose a drinking water testing equipment and its testing method. Summary of the Invention

[0004] The purpose of the present invention is to provide a drinking water detection device and a detection method thereof to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a drinking water detection device and a detection method thereof, comprising a mixing mechanism for mixing a reagent with a water sample;

[0007] An auxiliary mechanism, the auxiliary mechanism being arranged below the mixing mechanism and being used for installing the mixing mechanism;

[0008] A clamping mechanism, the clamping mechanism being arranged in front of the mixing mechanism and being used to fix the test tube containing the medicine and the water sample;

[0009] Wherein, the mixing mechanism abuts against the auxiliary mechanism.

[0010] Further, the mixing mechanism includes a mixing assembly, and the mixing assembly is used to shake the test tube;

[0011] a positioning assembly, the positioning assembly being disposed inside the mixing assembly and in contact with the mixing assembly;

[0012] Wherein, the positioning component is used to output power to the mixing component.

[0013] Furthermore, the auxiliary mechanism includes an auxiliary component, the auxiliary component is arranged on the side of the mixing component, and the auxiliary component is used to install the mixing component;

[0014] A detection assembly is provided below the two auxiliary assemblies and the mixing assembly, and is used to support the mixing assembly from the bottom;

[0015] The top of the detection component contacts the bottom of the positioning component and the auxiliary component.

[0016] Furthermore, the clamping mechanism includes a clamping assembly, the clamping assembly is arranged on the front side of the mixing assembly, and the back side of the clamping assembly extends into the interior of the mixing assembly;

[0017] A limiting assembly, wherein the limiting assembly is arranged on the right side of the clamping assembly, and the left side of the limiting assembly contacts the right side of the clamping assembly;

[0018] Wherein, the back surface of the clamping component abuts against the front surface of the mixing component.

[0019] Furthermore, the mixing assembly includes a rectangular shell, a shell covering plate is installed on the front side of the rectangular shell, a sliding rod is installed horizontally at the center of the interior of the rectangular shell, two gears are provided at the left center of the front side of the slide rod, the two gears are arranged in a longitudinal array with the rectangular shell as the center, the two gears mesh with each other, the back side of the gear at the top passes through the rectangular shell to extend outward and is rotatably connected, the front side of the gear at the top passes through the shell covering plate to extend outward and is rotatably connected, the back side of the gear at the bottom passes through the slide rod to extend backward and is rotatably connected, a short rotating rod is installed on the back side of the top right side of the short rotating rod, a long rotating rod is rotatably connected to the front side of the bottom right side of the long rotating rod, the front side of the slider is sleeved on the outer wall of the slide rod, and the slider is slidably connected to the slide rod;

[0020] By setting the meshing of the two gears, the top gear can drive the bottom gear to rotate, and then the bottom gear can drive the long rotating rod to rotate through the short rotating rod installed on the back;

[0021] The top right side of the short rotating rod and the bottom left side of the long rotating rod are penetrated by a pin shaft, and the short rotating rod and the long rotating rod are rotationally connected through the pin shaft.

[0022] Furthermore, the positioning assembly includes a positioning block, the positioning block is sleeved on the outer side of the gear located at the top, and the left side of the positioning block is installed on the left inner wall of the rectangular shell;

[0023] The top gear can be positioned by setting a positioning block to prevent the top gear from being misaligned with the bottom gear due to factors such as collision, thereby affecting the meshing between the two gears;

[0024] Wherein, the positioning assembly also includes a motor, which is installed on the front side of the housing cover plate, and the coupling at the output end on the back side of the motor is installed on the front side of the gear located at the top.

[0025] Furthermore, the auxiliary component includes two U-shaped protrusions, and the sides of the two U-shaped protrusions that are close to each other are installed on the side outer wall of the rectangular shell, a T-shaped plug plate is inserted at the center of the U-shaped protrusion, a sliding groove is opened on the rear side of the center of the U-shaped protrusion, a slide plate is slidably connected inside the sliding groove, a pull rod is installed at the center of the slide plate, the two pull rods extend outward through the U-shaped protrusion on the sides away from each other and are slidably connected, the sides of the two pull rods that are close to each other are inserted through the T-shaped plug plate and inserted into the U-shaped protrusion, a spring is installed at the gap between the sliding groove and the slide plate, and a handle is installed at the center of the back of the slide plate;

[0026] The detection assembly includes a detection instrument, which is arranged below the rectangular housing. The top of the detection instrument is mounted on a U-shaped protrusion and the bottom outer wall of the rectangular housing. A bottom plate is mounted below the detection instrument. A back plate is mounted on the rear side of the top of the bottom plate. The front of the back plate is mounted on the rectangular housing and the back outer wall of the detection instrument. Three support plates are mounted on the back of the back plate. The three support plates are arranged in a horizontal array with the back plate as the center.

[0027] By arranging a spring between the slide and the slide, the slide can be reset by the rebound caused by the spring releasing the stress outward;

[0028] The handle penetrates the back of the U-shaped protrusion and extends outwards, and the handle is slidably connected to the inner wall of the U-shaped protrusion at the penetration point.

[0029] Furthermore, the clamping assembly includes an L-shaped plate, the L-shaped plate is connected to the front of the slider by screws, a curved circular hole is opened at the bottom of the L-shaped plate, a bidirectional screw rod is provided at the top of the L-shaped plate, a cylindrical guide rail is provided below the bidirectional screw rod, and a clamping plate is provided on the left and right sides of the L-shaped plate, the top of the rear side of the clamping plate is threadedly connected to the bidirectional screw rod, and the top and bottom of the rear side of the clamping plate are slidably connected to the cylindrical guide rail;

[0030] The limit assembly includes a knob and two square plates, the knob is mounted on the right outer wall of the bidirectional screw, the two square plates are respectively arranged on the left and right sides of the bidirectional screw, the top of the square plate is rotatably connected to the bidirectional screw, the bottom of the square plate is in contact with the cylindrical guide rail on the side away from each other, and the outer wall of the side of the slide groove is mounted on the outer wall of the two square plates on the side close to each other;

[0031] The cylindrical guide rails can provide guidance for the movement of the left and right clamping plates, and can also prevent the clamping plates from shaking during movement, which may cause the clamping of the test tube to loosen.

[0032] The left side thread of the outer wall of the bidirectional screw and the right side thread of the outer wall are opened in opposite directions and are mirror images of each other.

[0033] The present invention has the following beneficial effects:

[0034] (1) The present invention sets a mixing mechanism, specifically, rotates the top gear, so that the bottom gear rotates clockwise under the drive of the meshing connection, and then drives the short rotating rod to rotate during the clockwise rotation, and drives the slider to move through the long rotating rod rotatably connected to the short rotating rod, so that the slider moves back and forth along the slider. In this way, the medicine can be more fully mixed with the water sample by shaking left and right, reducing the measurement error caused by uneven mixing and ensuring the accuracy of the detection data.

[0035] (2) The present invention provides an auxiliary mechanism, specifically, by pushing the handle outward, so that the slide drives the pull rod to slide outward, and the pull rod is pulled out from the center of the T-shaped plug plate. When the pull rod moves, the slide squeezes the spring, allowing the spring to absorb the pressure. In this way, the connection between the U-shaped protrusion and the T-shaped plug plate can be released, and the disassembly of the rectangular shell and the shell cover can be completed. When the handle is released, the spring drives the pull rod to reset and the installation of the U-shaped protrusion and the T-shaped plug plate is completed, which facilitates regular maintenance of the internal parts of the rectangular shell, avoids malfunctions caused by wear of parts, and ensures the stability of equipment operation.

[0036] (3) The present invention sets a clamping mechanism, specifically, places the test tube at the center of the circular hole of the L-shaped plate, and then rotates the bidirectional screw, so that the bidirectional screw drives the clamps connected by threads on the outer surfaces to approach each other, and the clamps move along the cylindrical guide rail. In this way, the test tube can be clamped from the left and right sides, so that the test tube can be connected to the slider through the L-shaped plate, preventing the test tube from sliding off the equipment when the slider is working, thereby ensuring that the equipment can work smoothly.

[0037] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the backplane of the present invention;

[0041] Figure 3 Schematic diagram of the cross section of the shell sealing plate of the present invention;

[0042] Figure 4 This is a schematic diagram of the long rotating rod structure of the present invention;

[0043] Figure 5 Schematic diagram of the cross section of the U-shaped protrusion of the present invention;

[0044] Figure 6 This is a schematic diagram of the bottom plate structure of the present invention;

[0045] Figure 7 This is a schematic diagram of the L-shaped plate structure of the present invention;

[0046] Figure 8 It is a schematic diagram of the cylindrical guide rail structure of the present invention.

[0047] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0048] In the figure: 1. mixing mechanism; 11. mixing component; 111. rectangular shell; 112. shell closing plate; 113. sliding rod; 114. gear; 115. short rotating rod; 116. long rotating rod; 117. slider; 12. positioning component; 121. positioning block; 122. motor; 2. auxiliary mechanism; 21. auxiliary component; 211. U-shaped protrusion; 212. T-shaped plug plate; 213. slide groove; 214. slide plate; 215. pull rod; 216. handle; 22. detection component; 221. detection instrument; 222. bottom plate; 223. back plate; 224. support plate; 3. clamping mechanism; 31. clamping component; 311. L-shaped plate; 312. bidirectional screw rod; 313. cylindrical guide rail; 314. splint; 32. limit assembly; 321. knob; 322. square and round plate. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] See also Figures 1-8 As shown, the present invention is a drinking water detection device and a detection method thereof, comprising a mixing mechanism 1, the mixing mechanism 1 is used for mixing a reagent with a water sample;

[0051] Auxiliary mechanism 2, which is arranged below the mixing mechanism 1 and is used for installing the mixing mechanism 1;

[0052] The clamping mechanism 3 is arranged in front of the mixing mechanism 1 and is used to fix the test tube containing the medicine and the water sample;

[0053] Here, the mixing mechanism 1 is in contact with the auxiliary mechanism 2 .

[0054] The mixing mechanism 1 includes a mixing assembly 11, which is used to shake the test tube;

[0055] A positioning component 12 is disposed inside the mixing component 11 and contacts the mixing component 11;

[0056] The positioning assembly 12 is used to output power to the mixing assembly 11 .

[0057] The auxiliary mechanism 2 includes an auxiliary component 21, which is arranged on the side of the mixing component 11 and is used to install the mixing component 11;

[0058] A detection assembly 22 is provided below the two auxiliary assemblies 21 and the mixing assembly 11. The detection assembly 22 is used to support the mixing assembly 11 from the bottom;

[0059] The top of the detection component 22 contacts the bottom of the positioning component 12 and the auxiliary component 21 .

[0060] The clamping mechanism 3 includes a clamping assembly 31, which is disposed on the front side of the mixing assembly 11, and the back side of the clamping assembly 31 extends into the interior of the mixing assembly 11;

[0061] The limiting component 32 is arranged on the right side of the clamping component 31, and the left side of the limiting component 32 contacts the right side of the clamping component 31;

[0062] The back surface of the clamping component 31 abuts against the front surface of the mixing component 11 .

[0063] The mixing assembly 11 includes a rectangular shell 111, a shell sealing plate 112 is installed on the front of the rectangular shell 111, and a slide bar 113 is installed horizontally at the center of the interior of the rectangular shell 111. Two gears 114 are provided at the left center of the front of the slide bar 113. The two gears 114 are arranged in a longitudinal array with the rectangular shell 111 as the center. The two gears 114 are meshed with each other, and the back of the gear 114 at the top penetrates the rectangular shell 111 to extend outward and be rotatably connected. The front of the gear 114 at the top penetrates the shell sealing plate 112 to extend outward and be rotatably connected. The back of the gear 114 at the bottom penetrates the slide bar 113 to extend backward and be rotatably connected. A short rotating rod 115 is installed on the back of the gear 114 at the bottom. The back of the top right side of the short rotating rod 115 is rotatably connected to the long rotating rod 116. The front of the bottom right side of the long rotating rod 116 is rotatably connected to a slider 117. The front of the slider 117 is sleeved on the outer wall of the slider 113, and the slider 117 is slidably connected to the slider 113.

[0064] Rotate the top gear 114, so that the bottom gear 114 rotates clockwise under the drive of the meshing connection, and then drives the short rotating rod 115 to rotate during the clockwise rotation, and drives the slider 117 to move through the long rotating rod 116 rotatably connected to the short rotating rod 115, so that the slider 117 moves back and forth along the slide bar 113. In this way, the medicine can be more fully mixed with the water sample by shaking left and right, reducing the measurement error caused by uneven mixing and ensuring the accuracy of the test data;

[0065] The top right side of the short rotating rod 115 and the bottom left side of the long rotating rod 116 are penetrated by a pin, and the short rotating rod 115 and the long rotating rod 116 are rotationally connected via the pin.

[0066] The positioning assembly 12 includes a positioning block 121, which is sleeved on the outside of the gear 114 at the top, and the left side of the positioning block 121 is mounted on the left inner wall of the rectangular housing 111;

[0067] The positioning assembly 12 further includes a motor 122 , which is mounted on the front of the housing cover 112 , and a coupling at the output end on the back of the motor 122 is mounted on the front of the gear 114 at the top.

[0068] The auxiliary component 21 includes two U-shaped protrusions 211. The sides of the two U-shaped protrusions 211 that are close to each other are installed on the side outer wall of the rectangular shell 111. A T-shaped plug plate 212 is inserted at the center of the U-shaped protrusion 211. A sliding groove 213 is opened on the rear side of the center of the U-shaped protrusion 211. A slide plate 214 is slidably connected inside the sliding groove 213. A pull rod 215 is installed at the center of the slide plate 214. The two pull rods 215 extend outwardly through the U-shaped protrusion 211 on the sides away from each other and are slidably connected. The sides of the two pull rods 215 that are close to each other are both inserted into the T-shaped plug plate 212 and inserted into the U-shaped protrusion 211. A spring is installed in the gap between the sliding groove 213 and the slide plate 214. A handle 216 is installed at the center of the back of the slide plate 214.

[0069] The detection assembly 22 includes a detection instrument 221, which is arranged below the rectangular housing 111. The top of the detection instrument 221 is mounted on the U-shaped protrusion 211 and the bottom outer wall of the rectangular housing 111. A bottom plate 222 is mounted below the detection instrument 221. A back plate 223 is mounted on the rear side of the top of the bottom plate 222. The front of the back plate 223 is mounted on the rectangular housing 111 and the back outer wall of the detection instrument 221. Three support plates 224 are mounted on the back of the back plate 223. The three support plates 224 are arranged in a horizontal array with the back plate 223 as the center.

[0070] The handle 216 is pushed outward, so that the slide plate 214 drives the pull rod 215 to slide outward, so that the pull rod 215 is pulled out from the center of the T-shaped plug plate 212. When the pull rod 215 moves, the slide plate 214 squeezes the spring, allowing the spring to absorb the pressure. In this way, the connection between the U-shaped protrusion 211 and the T-shaped plug plate 212 is released, and the disassembly of the rectangular housing 111 and the housing cover 112 is completed. When the handle 216 is released, the spring drives the pull rod 215 to return to its original position, completing the installation of the U-shaped protrusion 211 and the T-shaped plug plate 212. This facilitates regular maintenance of the internal parts of the rectangular housing 111, avoids malfunctions caused by parts wear, and ensures the stability of the equipment operation.

[0071] The handle 216 penetrates through the back of the U-shaped protrusion 211 and extends outwards. The handle 216 is slidably connected to the inner wall of the U-shaped protrusion 211 at the penetration point.

[0072] The clamping assembly 31 includes an L-shaped plate 311, which is connected to the front of the slider 117 by screws. A curved circular hole is provided at the bottom of the L-shaped plate 311. A bidirectional screw rod 312 is provided at the top of the L-shaped plate 311, and a cylindrical guide rail 313 is provided below the bidirectional screw rod 312. Clamps 314 are provided on the left and right sides of the L-shaped plate 311. The top of the rear side of the clamping plate 314 is threadedly connected to the bidirectional screw rod 312, and the top and bottom of the rear side of the clamping plate 314 are slidably connected to the cylindrical guide rail 313.

[0073] The limiting assembly 32 includes a knob 321 and two square plates 322. The knob 321 is mounted on the right outer wall of the bidirectional screw rod 312. The two square plates 322 are respectively arranged on the left and right sides of the bidirectional screw rod 312. The top of the square plate 322 is rotatably connected to the bidirectional screw rod 312. The bottom of the square plate 322 is in contact with the side away from the cylindrical guide rail 313. The side outer wall of the slide groove 213 is mounted on the outer wall of the two square plates 322 on the side close to each other.

[0074] Place the test tube at the center of the circular hole of the L-shaped plate 311, and then rotate the bidirectional screw rod 312 so that the bidirectional screw rod 312 drives the clamping plates 314 connected by the thread on the outer surface to move closer to each other, so that the clamping plates 314 move along the cylindrical guide rail 313. In this way, the test tube can be clamped from the left and right sides, so that the test tube can be connected to the slider 117 through the L-shaped plate 311, preventing the test tube from sliding off the device when the slider 117 is working, ensuring that the device can work smoothly.

[0075] The left side thread of the outer wall of the bidirectional screw rod 312 and the right side thread of the outer wall are opened in opposite directions and are mirror images of each other.

[0076] When in use, first put the water sample into the test tube, then put the test reagent into the test tube, and then place the test tube on the round hole of the L-shaped plate 311, and then turn the knob 321 to rotate the bidirectional screw rod 312 and drive the two clamping plates 314 to approach each other through the threaded connection, clamping the test tube horizontally, and then start the motor 122 to drive the top slide 214 to rotate counterclockwise, and then the engagement between the two slides 214 causes the bottom slide 214 to rotate clockwise and drive the short rotating rod 115 installed on the back to rotate, and then the long rotating rod 116 is driven to rotate through the top right side of the short rotating rod 115, and then the long rotating rod 116 drives the slider 117 to move, so that the slider 117 slides back and forth along the outer surface of the slide rod 113, and then the test tube is driven in through the slider 117 Move the test tube, shake the test tube repeatedly so that the medicine in the test tube can be fully mixed with the water sample to ensure the accuracy of the test result. Then turn off the motor 122 to stop the mixing mechanism 1 and the clamping mechanism 3. Then take out the test tube and put it into the detection instrument 221 at the bottom, and then start the detection instrument 221. The model of the detection instrument 221 is Hach-DR6000. Its working principle is based on spectrophotometry. The detection instrument 221 will emit ultraviolet or visible light to illuminate the water sample during detection. The light that passes through the water sample is received by the detector of the detection instrument 221. The absorbance is calculated according to the change in light intensity, and then compared with the preset calibration curve to quantitatively analyze the concentration of the target substance, thereby obtaining the test turbidity, heavy metals, organic pollutants and other parameters of the water sample, which is convenient for the staff to judge whether the water quality of the water sample meets the requirements;

[0077] Finally, after long-term use, the lubricating oil of gear 114 will gradually disappear. If the lubricating oil is not replenished in time, the two gears 114 will easily get stuck, which will affect the stability of the mixing mechanism 1. At this time, the mixing component 11 can be opened through the auxiliary component 21, and the handle 216 can be moved in the direction away from each other, so that the handle 216 drives the pull rod 215 to slide outward through the slide plate 214, compressing the spring and pulling the slide plate 214 out of the groove of the T-shaped insert plate 212, releasing the connection between the two U-shaped protrusions 211 and the T-shaped insert plate 212, and then turning the screw to separate the L-shaped plate 311 from the slider 117, and then remove the outer shell cover 112, and replenish lubricating oil to the meshing point of the two gears 114 so that the two gears 114 can maintain stably meshing.

[0078] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drinking water testing device, characterized in that: include: A mixing mechanism (1), wherein the mixing mechanism (1) is used for mixing a medicine with a water sample; An auxiliary mechanism (2), the auxiliary mechanism (2) being arranged below the mixing mechanism (1), and the auxiliary mechanism (2) being used for installing the mixing mechanism (1); A clamping mechanism (3), the clamping mechanism (3) being arranged in front of the mixing mechanism (1), and the clamping mechanism (3) being used to fix a test tube containing a medicine and a water sample; Wherein, the mixing mechanism (1) abuts against the auxiliary mechanism (2).

2. The drinking water testing device according to claim 1, characterized in that: The mixing mechanism (1) comprises a mixing assembly (11), and the mixing assembly (11) is used to shake the test tube; a positioning assembly (12), the positioning assembly (12) being disposed inside the mixing assembly (11), the positioning assembly (12) being in contact with the mixing assembly (11); Wherein, the positioning component (12) is used to output power to the mixing component (11).

3. The drinking water testing device according to claim 2, characterized in that: The auxiliary mechanism (2) comprises an auxiliary component (21), the auxiliary component (21) is arranged on the side of the mixing component (11), and the auxiliary component (21) is used to install the mixing component (11); A detection component (22), the detection component (22) being arranged below the two auxiliary components (21) and the mixing component (11), the detection component (22) being used to support the mixing component (11) from the bottom; The top of the detection component (22) contacts the bottom of the positioning component (12) and the auxiliary component (21).

4. The drinking water testing device according to claim 3, characterized in that: The clamping mechanism (3) comprises a clamping assembly (31), wherein the clamping assembly (31) is arranged on the front side of the mixing assembly (11), and the back side of the clamping assembly (31) extends into the interior of the mixing assembly (11); A limiting component (32), wherein the limiting component (32) is arranged on the right side of the clamping component (31), and the left side of the limiting component (32) contacts the right side of the clamping component (31); The back surface of the clamping component (31) abuts against the front surface of the mixing component (11).

5. The drinking water testing device according to claim 4, characterized in that: The mixing assembly (11) includes a rectangular shell (111), a shell cover plate (112) is installed on the front of the rectangular shell (111), a slide bar (113) is installed horizontally at the center of the interior of the rectangular shell (111), and two gears (114) are provided at the center of the left side of the front of the slide bar (113). The two gears (114) are arranged in a longitudinal array with the rectangular shell (111) as the center. The two gears (114) are meshed with each other, and the back of the gear (114) at the top penetrates the rectangular shell (111) and extends outward and is rotatably connected. The gear (114) at the top The front of the gear (114) extends outward through the housing cover (112) and is rotatably connected. The back of the gear (114) at the bottom extends backward through the slide bar (113) and is rotatably connected. A short rotating rod (115) is installed on the back of the gear (114) at the bottom. The back of the right top of the short rotating rod (115) is rotatably connected to a long rotating rod (116). The front of the right bottom of the long rotating rod (116) is rotatably connected to a slider (117). The front of the slider (117) is sleeved on the outer wall of the slide bar (113). The slider (117) is slidably connected to the slide bar (113). The top right side of the short rotating rod (115) and the bottom left side of the long rotating rod (116) are penetrated by a pin, and the short rotating rod (115) and the long rotating rod (116) are rotationally connected via the pin.

6. The drinking water testing device according to claim 5, characterized in that: The positioning assembly (12) includes a positioning block (121), the positioning block (121) is sleeved on the outside of the gear (114) located at the top, and the left side of the positioning block (121) is installed on the left inner wall of the rectangular housing (111); The positioning assembly (12) further comprises a motor (122), the motor (122) being mounted on the front of the housing cover plate (112), and the coupling at the output end on the back of the motor (122) being mounted on the front of the gear (114) located at the top.

7. The drinking water testing device according to claim 6, characterized in that: The auxiliary component (21) includes two U-shaped protrusions (211), and the sides of the two U-shaped protrusions (211) that are close to each other are installed on the outer wall of the side of the rectangular shell (111); a T-shaped plug plate (212) is inserted at the center of the U-shaped protrusion (211); a sliding groove (213) is opened on the rear side of the center of the U-shaped protrusion (211); a slide plate (214) is slidably connected inside the sliding groove (213); a pull rod (215) is installed at the center of the slide plate (214); the two pull rods (215) extend outwardly and are slidably connected on the sides away from each other, penetrate the U-shaped protrusion (211), and are slidably connected; the sides of the two pull rods (215) that are close to each other penetrate the T-shaped plug plate (212) and are inserted with the U-shaped protrusion (211); a spring is installed at the gap between the sliding groove (213) and the slide plate (214); a handle (216) is installed at the center of the back of the slide plate (214); The detection assembly (22) comprises a detection instrument (221), the detection instrument (221) is arranged below the rectangular housing (111), the top of the detection instrument (221) is mounted on the U-shaped protrusion (211) and the bottom outer wall of the rectangular housing (111), a bottom plate (222) is mounted below the detection instrument (221), a back plate (223) is mounted on the rear side of the top of the bottom plate (222), the front of the back plate (223) is mounted on the rectangular housing (111) and the back outer wall of the detection instrument (221), and three support plates (224) are mounted on the back of the back plate (223), and the three support plates (224) are arranged in a horizontal array with the back plate (223) as the center. The handle (216) penetrates the back of the U-shaped protrusion (211) and extends outwards, and the handle (216) is slidably connected to the inner wall of the U-shaped protrusion (211) at the penetration point.

8. The drinking water testing device according to claim 7, characterized in that: The clamping assembly (31) includes an L-shaped plate (311), the L-shaped plate (311) and the front of the slider (117) are connected together by screws, a curved circular hole is provided at the bottom of the L-shaped plate (311), a bidirectional screw rod (312) is provided at the top of the L-shaped plate (311), a cylindrical guide rail (313) is provided below the bidirectional screw rod (312), and a clamping plate (314) is provided on the left and right sides of the L-shaped plate (311), the top of the rear side of the clamping plate (314) is threadedly connected to the bidirectional screw rod (312), and the top and bottom of the rear side of the clamping plate (314) are slidably connected to the cylindrical guide rail (313); The limit assembly (32) includes a knob (321) and two square plates (322), wherein the knob (321) is mounted on the right outer wall of the bidirectional screw rod (312), and the two square plates (322) are respectively arranged on the left and right sides of the bidirectional screw rod (312), the top of the square plate (322) is rotatably connected to the bidirectional screw rod (312), the bottom of the square plate (322) is in contact with the cylindrical guide rail (313) on the side away from each other, and the side outer wall of the slide groove (213) is mounted on the outer wall of the two square plates (322) on the side close to each other; The left side thread of the outer wall of the bidirectional screw rod (312) and the right side thread of the outer wall are opened in opposite directions and are mirror images of each other.

9. A method for using a drinking water testing device, characterized in that: Using the drinking water testing device as claimed in claim 8, the method comprises the following steps: Step 1: Place the water sample into the test tube, then place the test agent into the test tube, then place the test tube on the circular hole of the L-shaped plate (311), and then turn the knob (321) to rotate the bidirectional screw rod (312) and simultaneously drive the two clamping plates (314) to move closer to each other through the threaded connection, thereby clamping the test tube horizontally; Step 2: Start the motor (122), so that the motor (122) drives the top slide (214) to rotate counterclockwise, and then the bottom slide (214) is rotated clockwise by the engagement between the two slides (214), and at the same time drives the short rotating rod (115) installed on the back to rotate, and then drives the long rotating rod (116) to rotate through the top of the right side of the short rotating rod (115), and then drives the slider (117) to move, so that the slider (117) slides back and forth along the outer surface of the slider (113), and then drives the test tube to move through the slider (117), and repeatedly shakes the test tube so that the medicine in the test tube can be fully mixed with the water sample to ensure the accuracy of the test result; Step 3: Turn off the motor (122) to stop the mixing mechanism (1) and the clamping mechanism (3), then take out the test tube and put it into the detection instrument (221) at the bottom, and then start the detection instrument (221). The detection instrument (221) is a model of Hach-DR6000, and its working principle is based on spectrophotometry. The detection instrument (221) emits ultraviolet or visible light to illuminate the water sample during detection. The light that passes through the water sample is received by the detector of the detection instrument (221). The absorbance is calculated according to the change in light intensity, and then compared with the preset calibration curve to quantitatively analyze the concentration of the target substance, thereby obtaining the test turbidity, heavy metals, organic pollutants and other parameters of the water sample, which is convenient for the staff to judge whether the water quality of the water sample meets the requirements; Step 4: When the gear (114) is used for a long time, the lubricating oil will gradually disappear. If the lubricating oil is not replenished in time, it will cause the two gears (114) to be easily stuck, thereby affecting the working stability of the mixing mechanism (1). At this time, the mixing component (11) can be opened by the auxiliary component (21), and the handle (216) is moved in the direction away from each other, so that the handle (216) drives the pull rod (215) to slide outward through the slide plate (214), compresses the spring and pulls the slide plate (214) out of the notch of the T-shaped plug plate (212), releases the connection between the two U-shaped protrusions (211) and the T-shaped plug plate (212), then turns the screw to separate the L-shaped plate (311) from the slider (117), and then removes the shell cover (112), replenishes the lubricating oil to the meshing part of the two gears (114), so that the two gears (114) maintain stable meshing.

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