Water antibiotic monitoring device and method based on spectral characteristics

Abstract

The invention relates to a water antibiotic monitoring device and method based on spectral characteristics, and belongs to the technical field of water antibiotic spectral analysis. The device comprises a spectrum detection mechanism and two groups of cuvettes, the device further comprises a water sample transfer mechanism for alternately transferring the two groups of cuvettes, a water sample extraction mechanism is arranged on one side of the spectrum detection mechanism, and the water sample extraction mechanism alternately adds water samples into the two groups of cuvettes. When the water sample extraction mechanism adds a water sample into one group of cuvettes, the other group of cuvettes enter the spectrum detection mechanism under the action of the water sample transfer mechanism, the spectrum detection mechanism extracts spectrum characteristics of the water sample and analyzes antibiotic evaluation indexes, after analysis is finished, the water sample transfer mechanism takes out the cuvettes in the spectrum detection mechanism, and the water sample transfer mechanism transfers the cuvettes into the spectrum detection mechanism. The water sample in the cuvette is removed, so that the manpower is saved, and the water antibiotic monitoring efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of spectral analysis of water antibiotics, and in particular relates to a device and method for monitoring water antibiotics based on spectral characteristics. Background Art

[0002] Due to human activities such as aquaculture development, landfill, and pharmaceutical factory emissions, the content of antibiotics in water bodies has increased. Therefore, the measurement of antibiotics in water bodies has gradually become an environmental issue of global concern. Existing methods for detecting antibiotics in water bodies include chemical analysis, biosensor method, and spectral analysis. Spectroscopic analysis is a commonly used rapid, non-destructive detection technology with high sensitivity and broad application prospects. In this method, the sample is placed in the cuvette of the spectrometer for detection. The specific wavelength light beam emitted by the light source passes through the sample. By analyzing the absorption or scattering characteristics of the light and extracting the spectral characteristics, the antibiotics in the water body can be effectively identified and quantified. This detection method simplifies the operation process and avoids complex chemical treatment, so it has great application potential in antibiotic monitoring.

[0003] However, the existing spectral feature detection methods still have certain shortcomings in application. On the one hand, in most spectrometers, sample detection requires a lot of manual operations, including manually adding water samples to the cuvette, manually placing the cuvette and adjusting the position, and manually opening and closing the optical chamber cover above the cuvette rack. This not only reduces the detection efficiency, but also makes continuous and real-time monitoring difficult to achieve. On the other hand, the existing measurement devices for water antibiotics are difficult to achieve automated and online monitoring of the antibiotic content in water, resulting in the timeliness and accuracy of the test results being affected in long-term environmental monitoring. Therefore, it is of great practical significance to develop a monitoring device and method that can automatically and continuously detect antibiotics in water. Summary of the invention

[0004] The purpose of the present invention is to provide a water antibiotic monitoring device and method based on spectral characteristics in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A water antibiotic monitoring device based on spectral characteristics, comprising a spectral detection mechanism and a cuvette, wherein the cuvette is provided in two groups, the device further comprises a water sample transport mechanism for alternately transporting the two groups of cuvettes, a water sample extraction mechanism is provided on one side of the spectral detection mechanism, and the water sample extraction mechanism alternately adds water samples to the two groups of cuvettes;

[0007] When the water sample extraction mechanism adds water samples to one group of cuvettes, the other group of cuvettes containing water samples enters the spectral detection mechanism under the action of the corresponding water sample transport mechanism. The spectral detection mechanism extracts the spectral characteristics of the water samples and analyzes the antibiotic evaluation index. After the analysis is completed, the water sample transport mechanism takes out the cuvettes in the spectral detection mechanism and clears the water samples in the cuvettes.

[0008] As a further optimization scheme of the present invention, the water sample transport mechanism includes a mounting frame, a main track arranged above the spectral detection mechanism and fixed to the top of the mounting frame, auxiliary tracks respectively arranged on both sides of the main track and slidably connected to the mounting frame, a track driving member for driving the auxiliary track to dock or separate from the main track, a traveling member corresponding one to one to the auxiliary track, a lifting member fixed to the bottom of the traveling member, a flipping assembly fixed to the lower end of the lifting member, and a locking member fixed to the output end of the flipping assembly, and the locking member is used to connect the cuvette.

[0009] As a further optimization scheme of the present invention, the spectrum detection mechanism includes a spectrometer and an upper cover adjustment member, and a host computer connected to the spectrometer. The spectrometer has an optical chamber cover, and the upper cover adjustment member is used to adjust the opening and closing state of the optical chamber cover.

[0010] As a further optimization scheme of the present invention, the water sample extraction mechanism includes two pumping components respectively arranged on both sides of the mounting frame, and the pumping components include a metering pump, a water inlet pipe arranged at the water inlet of the metering pump, an upper water pipe arranged at the water outlet of the metering pump, a three-way valve arranged at one end of the upper water pipe, and a water outlet pipe and a return water pipe respectively arranged at the two ports of the three-way valve.

[0011] As a further optimization scheme of the present invention, the walking part includes a hanger, a roller rotatably arranged on the top of the hanger, a driving gear rotatably arranged on the inner side of the hanger, and a gear driving member for rotating the driving gear. The bottom of the main track and the auxiliary track are provided with convex teeth corresponding to the driving gear, so that when the driving gear rotates, the roller can roll on the main track or the auxiliary track.

[0012] As a further optimization scheme of the present invention, the track driving member includes a linear driving member arranged on the top of the mounting frame, a slide arranged on the output shaft of the linear driving member, and an actuator fixed on one side of the slide, and the actuator is used to push the hanger so that the secondary track corresponding to the hanger is close to or away from the main track.

[0013] As a further optimization solution of the present invention, the device further comprises two assembly racks, the two groups of cuvettes are respectively arranged inside the two assembly racks, and the locking member is connected to the cuvettes by locking the assembly racks.

[0014] As a further optimization scheme of the present invention, the flipping assembly includes an assembly frame fixedly mounted at the bottom of the lifting component, and a first motor fixedly mounted on the inner side of the assembly frame, the locking member includes a connecting frame fixedly mounted at the output end of the first motor, two bidirectional screw rods respectively rotated on both sides of the connecting frame, two pairs of nut pairs slidably mounted on both sides of the connecting frame, and a screw driving member for driving the two bidirectional screw rods to rotate, the two pairs of nut pairs are respectively threadedly connected to the two bidirectional screw rods, and an insertion rod is provided on the side close to the paired nut pairs, the assembly frame includes an assembly plate, and connecting tubes corresponding to the insertion rods one by one, and the cuvette is fixed on the inner side of the assembly plate.

[0015] As a further optimization solution of the present invention, an outer cylinder is fixedly provided on one side of the assembly frame, and an inner cylinder corresponding to the outer cylinder is fixedly provided on one end of the connecting frame.

[0016] A method for monitoring antibiotics in water based on spectral characteristics comprises the following steps:

[0017] S1, adding water samples to the front group of cuvettes in sequence through the water sample extraction mechanism;

[0018] S2, adding water samples to the latter group of cuvettes in sequence through the water sample extraction mechanism, during which the former group of cuvettes carrying water samples are loaded into the spectrum detection mechanism through the water sample transport mechanism, extracting spectral features and analyzing antibiotic evaluation indicators. After the analysis is completed, the water sample transport mechanism takes out the cuvettes in the spectrum detection mechanism and removes the water samples in the cuvettes;

[0019] S3, adding water samples to the front group of cuvettes in sequence through the water sample extraction mechanism, during which the water sample transport mechanism and the spectrum detection mechanism analyze the antibiotic evaluation index of the rear group of cuvettes in the manner of step S2, and remove the water samples;

[0020] S4. According to the method of step S2 and step S3, water samples are added alternately to the two groups of cuvettes, and the analysis of antibiotic evaluation indicators and the removal of water samples are performed alternately.

[0021] The beneficial effects of the present invention are:

[0022] 1) The present invention continuously detects water bodies through a spectral detection mechanism, extracts and analyzes the spectral characteristics of water samples, realizes the monitoring of antibiotics in water bodies, avoids complex chemical treatment, analyzes antibiotic evaluation indicators of water samples through a water sample transport mechanism and a spectral detection mechanism, and alternately adds water samples to two groups of cuvettes. During the process of adding water samples to the first group of cuvettes, the second group of cuvettes analyzes and removes water samples, thereby saving labor and improving real-time monitoring and detection efficiency;

[0023] 2) The present invention performs water sample analysis once at a certain interval, and the corresponding water sample extraction mechanism intermittently adds water sample to the cuvette. When adding water sample, the ports corresponding to the three-way valve, the metering pump and the water outlet pipe are opened, and the other ports are closed. When the addition of water sample stops, the ports corresponding to the three-way valve, the metering pump and the water return pipe are opened, and the other ports are closed, so that the residual water in the water sample extraction mechanism is pumped out to prevent the retained water from entering the next cuvette, thereby improving the accuracy of water sample analysis;

[0024] 3) The present invention arranges a split track above the spectrum detection mechanism. When transporting samples, the two sub-tracks are alternately spliced ​​with the main track through the track driving component. The main track and the sub-track are provided with convex teeth corresponding to the driving gear of the walking component. The walking component cooperates with the lifting component to adjust the injection position of the grouped cuvettes and load the samples, ensuring that there is no mutual interference between the two groups of cuvettes, improving the positioning accuracy of the cuvettes, and preventing water samples from spilling out of the cuvettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the working state of the present invention during sample delivery operation;

[0026] Figure 2 It is a schematic diagram of the working state of the present invention during the filling operation;

[0027] Figure 3 It is a schematic diagram of the working state of the present invention during spectrum detection;

[0028] Figure 4 It is a schematic diagram of the working state of the present invention during sample unloading operation;

[0029] Figure 5 yes Figure 1 The enlarged view of point A in the middle;

[0030] Figure 6 It is a schematic diagram of the structure of the spectrum detection mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the walking component of the present invention;

[0032] Figure 8 yes Figure 1 The enlarged view of point B in the middle;

[0033] Fig. 9 It is a schematic diagram of the structure of the flip assembly of the present invention;

[0034] Fig.10 It is a schematic diagram of the locking member structure of the present invention;

[0035] Fig.11 It is a structural schematic diagram of a shaping frame of the present invention.

[0036] In the figure: 1. Spectral detection mechanism; 2. Cuvette; 3. Water sample transport mechanism; 4. Water sample extraction mechanism; 5. Assembly rack; 6. Sample unloading channel; 11. Spectrometer; 12. Upper cover adjustment member; 31. Mounting rack; 32. Main track; 33. Auxiliary track; 34. Track driving member; 35. Walking member; 36. Lifting member; 37. Turning assembly; 38. Locking member; 39. Forming rack; 41. Metering pump; 42. Water inlet pipe; 43. Water supply pipe; 44. Three-way valve; 45. Water outlet pipe; 46. Return pipe; 51, assembly plate; 52, connecting tube; 341, linear drive member; 342, slide; 343, actuator; 351, hanger; 352, roller; 353, drive gear; 354, second motor; 355, worm; 356, worm wheel; 371, assembly frame; 372, first motor; 373, outer cylinder; 381, connecting frame; 382, ​​two-way screw; 383, nut pair; 384, plug rod; 385, inner cylinder; 386, third motor; 387, gear set. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0038] First embodiment

[0039] like Figure 1-6 As shown, this embodiment relates to a water antibiotic monitoring device based on spectral characteristics, which includes a spectral detection mechanism 1 and two groups of cuvettes 2. The cuvettes 2 are prismatic vessels with an upper opening, and the cuvettes 2 are made of transparent materials. The spectral detection mechanism 1 includes a spectrometer 11 and an upper cover adjustment member 12, as well as a host computer connected to the spectrometer 11. A light chamber is provided inside the spectrometer 11, and a light chamber cover is hinged on the top of the light chamber. The upper cover adjustment member 12 is used to adjust the opening and closing state of the light chamber cover. The upper cover adjustment member 12 is preferably an electric push rod connected to the light chamber cover at the output end. A sample rack is provided in the light chamber of the spectrometer 11, and the sample rack is filled with cuvettes 2, and a control sample dish is provided at one end of the sample rack, and a water control group is added to the control sample dish. The device also includes a water sample transport mechanism 3 for alternately transporting two groups of cuvettes 2, and a water sample extraction mechanism 4 is provided on one side of the spectral detection mechanism 1, and the water sample extraction mechanism 4 alternately adds water samples to the two groups of cuvettes 2. At the beginning of water body detection, no water sample is added to the two groups of cuvettes 2. At this time, water sample is added to one group of cuvettes 2 through the water sample extraction mechanism 4, and then the alternating sample injection-analysis-sample clearing workflow is performed. One group of cuvettes 2 with water sample added is the front group of cuvettes 2, and the other group of cuvettes 2 is the back group of cuvettes 2.

[0040] The alternating sampling-analysis-clearing workflow includes two alternating sub-processes. In the first sub-process: the water sample extraction mechanism 4 adds water sample to the next group of cuvettes 2. During this period, the water sample transport mechanism 3 transports the previous group of cuvettes 2 carrying water samples to the spectrometer 11, and the upper cover adjustment member 12 closes the optical chamber cover of the spectrometer 11. The spectrometer 11 cooperates with the host computer to extract the spectral characteristics of the previous group of water samples, and analyzes the antibiotic evaluation index to obtain the type and concentration of antibiotics in the previous group of water samples. After the analysis is completed, the upper cover adjustment member 12 opens the optical chamber cover of the spectrometer 11, and the water sample transport mechanism 3 takes out the previous group of cuvettes 2 in the spectrometer 11 and clears the water sample in the group of cuvettes 2. Extracting spectral characteristics of water samples and analyzing antibiotic evaluation indicators are prior arts, and will not be described in detail. Please refer to the Chinese patent document with publication number CN117664906B. In the second sub-process: the water sample extraction mechanism 4 adds water samples to the front group of cuvettes 2. During this period, the water sample transport mechanism 3 transports the rear group of cuvettes 2 containing the water samples to the spectrometer 11. The upper cover adjustment member 12 closes the optical chamber cover of the spectrometer 11. The spectrometer 11 cooperates with the host computer to extract the spectral characteristics of the rear group of water samples, and analyzes the antibiotic evaluation index to obtain the type and concentration of antibiotics in the rear group of water samples. After the analysis is completed, the upper cover adjustment member 12 opens the optical chamber cover of the spectrometer 11, and the water sample transport mechanism 3 takes out the rear group of cuvettes 2 in the spectrometer 11 and clears the water samples in the cuvettes 2.

[0041] Specifically, see Figure 1 and Figure 5The water sample transport mechanism 3 includes a mounting frame 31, a main track 32 arranged above the spectrum detection mechanism 1 and fixed on the lower surface of the top wall of the mounting frame 31, auxiliary tracks 33 respectively arranged on both sides of the main track 32 and slidably connected to the mounting frame 31, a track driving member 34 for driving the auxiliary track 33 to dock or separate with the main track 32, a walking component 35 corresponding to the auxiliary track 33, a lifting component 36 fixed at the bottom of the walking component 35, a flip assembly 37 fixed at the lower end of the lifting component 36, and a locking member 38 fixed at the output end of the flip assembly 37, the locking member 38 is used to connect the cuvette 2, a slider is provided on the top of the auxiliary track 33, and a slide rail corresponding to the slider is provided on the lower surface of the top wall of the mounting frame 31, the slider is slidably matched with the corresponding slide rail, the auxiliary track 33 is slidably connected with the mounting frame 31 through the cooperation of the slider and the slide rail, and the number of sliders on each auxiliary track 33 is preferably two. The water sample extraction mechanism 4 includes two pumping components respectively arranged on both sides of the mounting frame 31, and the two pumping components correspond to the two groups of cuvettes 2 respectively. The pumping components include a metering pump 41, a water inlet pipe 42 arranged at the water inlet of the metering pump 41, an upper water pipe 43 arranged at the water outlet of the metering pump 41, a three-way valve 44 arranged at one end of the upper water pipe 43, and an outlet pipe 45 and a return water pipe 46 respectively arranged at two ports of the three-way valve 44, the water inlet of the return water pipe 46 is arranged at the upper end of the three-way valve 44, the water inlet of the outlet pipe 45 is arranged at the lower end of the three-way valve 44, and the water outlet of the upper water pipe 43 is arranged at the front end of the three-way valve 44. The water inlets of the two water inlet pipes 42 are arranged close to each other, and the water outlets of the two return water pipes 46 are arranged away from the water inlet of the water inlet pipe 42. In addition, when the device is used for detection. The device further comprises two assembly racks 5 , and two groups of cuvettes 2 are respectively arranged inside the two assembly racks 5 , and the locking member 38 is connected to the cuvettes 2 by locking the assembly racks 5 .

[0042] When adding water sample, the running part 35 corresponding to the empty cuvette 2 is suspended on the auxiliary track 33, and the auxiliary track 33 is at the front end of the slide rail above it. At this time, the running part 35 is in the initial injection position, and one of the cuvettes 2 in a group of cuvettes 2 below the running part 35 is located directly below the corresponding outlet pipe 45. More specifically, at this time, the outlet of the outlet pipe 45 is directly above the front position of the opening of the cuvette 2. The front end of the three-way valve 44 is first connected to the upper end, and the metering pump 41 sucks the water in the measured water area to replace the water in the upper water pipe 43. The water in the upper water pipe 43 is discharged from the return water pipe 46. Then the front end of the three-way valve 44 is connected to the lower end, and the metering pump 41 pumps the water in the upper water pipe 43 into the cuvette 2 through the outlet pipe 45 in a quantitative manner, so as to add water sample to the empty cuvette 2. After a set period of time, the walking component 35 moves a short distance on the secondary track 33, so that the next empty cuvette 2 below it is located directly below the water outlet pipe 45, and the water sample extraction mechanism 4 adds water sample to the empty cuvette 2 according to the above method. Then the water sample transport mechanism 3 and the water sample extraction mechanism 4 add water sample to each cuvette 2 in a group of cuvettes 2 in turn according to the above method. After a group of cuvettes 2 are added with water samples, another group of cuvettes 2 completes water sample analysis and water sample removal, and the group of cuvettes 2 added with water samples begins to go to the spectrometer 11 for water sample analysis, and then removes the water sample, while the cuvette 2 that has just completed water sample removal goes to the corresponding pumping component for water pumping.

[0043] After a group of cuvettes 2 are added with water samples, the track driving member 34 pushes the walking member 35 and the auxiliary track 33 to move backward, so that the auxiliary track 33 reaches the rear end of the slide rail above it. At this time, the auxiliary track 33 is docked with the main track 32, and then the walking member 35 moves toward the main track 32. The walking member 35 moves the lifting member 36, the flip assembly 37, the locking member 38 and the assembly rack 5 and the cuvette 2 locked by the locking member 38 horizontally to the top of the optical chamber of the spectrometer 11, the lifting member 36 is stretched downward, and the locking member 38 releases the lock on the assembly rack 5, so that the cuvette 2 is embedded in the sample rack of the spectrometer 11. After the lifting member 36 is reset, the upper cover adjustment member 12 closes the optical chamber cover of the spectrometer 11, and then the spectrometer 11 cooperates with the host computer to analyze the water sample in the cuvette 2. After the analysis is completed, the upper cover adjustment member 12 opens the optical chamber cover of the spectrometer 11, the lifting member 36 is stretched downward again, the locking member 38 is fitted with the assembly frame 5 and locked, and the lifting member 36 is reset again, thereby driving the assembly frame 5 and the cuvette 2 to move upward through the flip assembly 37 and the locking member 38. The walking member 35 moves to the corresponding auxiliary track 33, and the track driving member 34 pushes the walking member 35 and the auxiliary track 33 forward. The flip assembly 37 flips the assembly frame 5 and the cuvette 2 in the assembly frame 5 by flipping the locking member 38, thereby leading out the water sample in the cuvette 2. Two unloading channels 6 corresponding to the two groups of cuvettes 2 are fixed in the mounting frame 31, and the unloading channel 6 is used to receive the water sample and guide the received water sample into the water area measured by the device. In this embodiment, the two sample unloading channels 6 have their sample inlet ends respectively arranged below the two water outlet pipes 45, and the walking component 35 is at the initial sample inlet position for sample unloading. In some other embodiments, the sample unloading position can also be arranged away from the initial sample inlet position. Accordingly, the position and length of the sample unloading channel 6 can be adjusted to adapt to the replaced sample unloading position. In addition, in some other embodiments, the water sample transport mechanism 3 can be replaced by two articulated mechanical arms. Compared with the right-angle water sample transport mechanism 3 of this embodiment, the articulated mechanical arms have a smaller footprint and a higher space utilization rate. However, the water sample transport mechanism 3 of this embodiment is simple to program and has a high positioning accuracy. It is not easy to cause the swing of the cuvette 2, which reduces the risk of spilling water samples, and the later maintenance cost of the device is relatively low.

[0044] Furthermore, if Figure 7-10As shown, the walking component 35 includes a hanger 351, a roller 352 rotatably arranged on the top of the hanger 351, a driving gear 353 rotatably arranged on the inner side of the hanger 351, and a gear driving member for rotating the driving gear 353. The bottom of the main track 32 and the auxiliary track 33 are both provided with convex teeth corresponding to the driving gear 353, so that when the driving gear 353 rotates, the roller 352 can roll on the main track 32 or the auxiliary track 33. The hanger 351 is U-shaped, and there are two pairs of rollers 352 arranged on the top of the hanger 351. The main track 32 and the auxiliary track 33 are both in an inverted T shape. The gear drive component includes a second motor 354 fixed to the bottom inner side of the hanger 351, a worm 355 fixed to the output end of the second motor 354, and a worm wheel 356 meshed with the upper side of the worm 355. The worm wheel 356 is fixed to the driving gear 353 through a rotating shaft, and the rotating shaft between the worm wheel 356 and the driving gear 353 is hinged on the inner wall of the hanger 351. The track driving member 34 includes a linear driving member 341 disposed on the top of the mounting frame 31, a slide 342 disposed on the output shaft of the linear driving member 341, and an actuator 343 fixed to one side of the slide 342. The actuator 343 is used to push the hanger 351 so that the secondary track 33 corresponding to the hanger 351 is close to or away from the main track 32. The actuator 343 is preferably a plate-shaped structure, and the linear driving member 341 is preferably a screw drive structure. The second motor 354 rotates the driving gear 353 through the worm 355 and the worm wheel 356. The driving gear 353 engages with the convex teeth on the secondary track 33 or the main track 32, and moves horizontally below the secondary track 33 or the main track 32, so that the walking component 35 walks along the secondary track 33 or the main track 32.

[0045] The track driving component 34 adjusts the secondary track 33 so that the secondary track 33 docks with the main track 32. During this process, the linear driving component 341 drives the slide 342 and the actuator 343 to move backward. The actuator 343 pushes the hanger 351 backward. The hanger 351 applies a backward thrust to the secondary track 33 through its inner wall. When the secondary track 33 reaches the rear end of the slide rail, the secondary track 33 docks with the main track 32. The linear driving component 341 stops driving the slide 342 to move. When the walking component 35 on the secondary track 33 is away from the slide 342, the linear driving component 341 continues to drive the slide 342 to move backward so that the slide 342 is behind the hanger 351. The track driving component 34 adjusts the sub-track 33 to separate the sub-track 33 from the main track 32. During this process, the walking component 35 returns from the main track 32 to the corresponding sub-track 33. The linear driving component 341 drives the slide 342 and the actuator 343 to move forward. The actuator 343 pushes the hanger 351 forward. The hanger 351 applies a forward thrust to the sub-track 33 through its inner wall. When the sub-track 33 reaches the front end of the slide, the walking component 35 is in the initial injection position. The linear driving component 341 stops driving the slide 342 to move. In the subsequent injection process, when the walking component 35 on the sub-track 33 is away from the slide 342, the linear driving component 341 continues to drive the slide 342 to move forward so that the slide 342 is in front of the hanger 351.

[0046] The flip assembly 37 includes an assembly frame 371 fixed to the bottom of the lifting component 36, and a first motor 372 fixed to the inner side of the assembly frame 371. The locking member 38 includes a connecting frame 381 fixed to the output end of the first motor 372, two bidirectional screw rods 382 respectively rotated on both sides of the connecting frame 381, two pairs of nut pairs 383 respectively slidably arranged on both sides of the connecting frame 381, and a screw driving member for driving the two bidirectional screw rods 382 to rotate. The two pairs of nut pairs 383 are respectively The screw drive member includes a third motor 386 fixedly arranged at one end of the connecting frame 381 and a gear set 387 arranged between the third motor 386 and the two bidirectional screw rods 382. The gear set 387 includes a main gear fixedly arranged at the output end of the third motor 386 and two sub-gears fixedly arranged at the ends of the two bidirectional screw rods 382, ​​and the main gear is meshed with the two sub-gears. The assembly frame 5 includes an assembly plate 51 and a connecting cylinder 52 corresponding to the plug rod 384. The inner side of the assembly plate 51 is provided with an assembly hole corresponding to the cuvette 2, and the cuvette 2 is fixed in the assembly hole on the inner side of the assembly plate 51. An outer cylinder 373 is fixedly arranged at one side of the assembly frame 371, and an inner cylinder 385 corresponding to the outer cylinder 373 is fixedly arranged at one end of the connecting frame 381, and the inner cylinder 385 is rotatably connected to the inner side of the outer cylinder 373.

[0047] When the locking member 38 locks the assembly rack 5, when the third motor 386 rotates forward, the gear set 387 drives the two bidirectional screws 382 to rotate, and the bidirectional screws 382 drive the two pairs of nut pairs 383 on the outer side thereof to approach each other, so that the insertion rod 384 on the nut pair 383 is inserted into the connecting tube 52, and the assembly plate 51 and the connecting rack 381 are locked together. When the locking member 38 unlocks the assembly rack 5, when the third motor 386 rotates reversely, the gear set 387 and the bidirectional screw 382 drive the two nut pairs 383 to move in the opposite direction, so that the insertion rod 384 is pulled out of the connecting tube 52, and the assembly rack 5 and the cuvette 2 are unlocked. During the process of clearing the water sample in the cuvette 2, the first motor 372 drives the connecting frame 381 to flip, and the flip angle is greater than 90°. The assembly plate 51 that is locked with the connecting frame 381 flips accordingly, and the assembly plate 51 drives the cuvette 2 to rotate. The water sample in the cuvette 2 flows into the sample unloading channel 6, and then the first motor 372 drives the connecting frame 381 to reset. The flip assembly 37 provides support for the connecting frame 381 through the cooperation of the outer cylinder 373 and the inner cylinder 385, so as to avoid stress concentration at the connection between the first motor 372 and the connecting frame 381. In addition, Fig.11 As shown, in some other embodiments, a shaping frame 39 is fixedly provided at the bottom of the lifting component 36, and one end of the bottom of the shaping frame 39 is hinged to the connecting frame 381, further providing support for the connecting frame 381, reducing the bending deformation of the connecting frame 381, and improving the positioning accuracy of the device.

[0048] Second embodiment

[0049] This embodiment relates to a method for monitoring water antibiotics based on spectral features. The method is applicable to the water antibiotic monitoring device in the previous embodiment, and specifically includes the following steps:

[0050] S1, in the initial stage of monitoring, the two auxiliary tracks 33 are separated from the main track 32, the moving part 35 is located at the front end of the slide rail, and water samples are added to the two groups of cuvettes 2 in batches. In the initial stage of monitoring, the group of cuvettes 2 to which the water samples are added first is the front group of cuvettes 2, and the group of cuvettes 2 to which the water samples are added later is the rear group of cuvettes 2. Water samples are added to the front group of cuvettes 2 in sequence through the water sample extraction mechanism 4;

[0051] S2, sequentially adding water samples to the latter group of cuvettes 2 through the water sample extraction mechanism 4, during the period of adding water samples to the latter group of cuvettes 2, the former group of cuvettes 2 carrying water samples are loaded into the spectrum detection mechanism 1 through the water sample transport mechanism 3, and the spectrum characteristics are extracted, and the antibiotic evaluation index is analyzed. After the analysis is completed, the water sample transport mechanism 3 takes out the former group of cuvettes 2 in the spectrum detection mechanism 1, and removes the water samples in the former group of cuvettes 2;

[0052] S3, adding water samples to the front group of cuvettes 2 in sequence through the water sample extraction mechanism 4. During the period when the front group of cuvettes 2 are adding water samples, the water sample transport mechanism 3 and the spectrum detection mechanism 1 analyze the antibiotic evaluation index of the rear group of cuvettes 2 in the manner of step S2, and remove the water samples;

[0053] S4. According to the method of step S2 and step S3, water samples are added alternately to the two groups of cuvettes 2, and the analysis of antibiotic evaluation indexes and the removal of water samples are performed alternately.

[0054] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A water antibiotic monitoring device based on spectral characteristics, comprising a spectral detection mechanism (1) and a cuvette (2), characterized in that: The cuvettes (2) are provided in two groups, and the device further comprises a water sample transport mechanism (3) for alternately transporting the two groups of cuvettes (2). A water sample extraction mechanism (4) is provided on one side of the spectrum detection mechanism (1), and the water sample extraction mechanism (4) alternately adds water samples to the two groups of cuvettes (2); When the water sample extraction mechanism (4) adds water samples to one of the groups of cuvettes (2), the other group of cuvettes (2) carrying water samples enters the spectrum detection mechanism (1) under the action of the water sample transport mechanism (3). The spectrum detection mechanism (1) extracts the spectrum characteristics of the water samples and analyzes the antibiotic evaluation index. After the analysis is completed, the water sample transport mechanism (3) takes out the cuvettes (2) in the spectrum detection mechanism (1) and removes the water samples in the cuvettes (2).

2. The water antibiotic monitoring device according to claim 1, characterized in that: The water sample transport mechanism (3) comprises a mounting frame (31), a main track (32) arranged above the spectrum detection mechanism (1) and fixed to the top of the mounting frame (31), auxiliary tracks (33) respectively arranged on both sides of the main track (32) and slidably connected to the mounting frame (31), a track driving member (34) for driving the auxiliary track (33) to dock with or separate from the main track (32), a traveling member (35) corresponding to the auxiliary track (33) in a one-to-one manner, a lifting member (36) fixed to the bottom of the lifting member (35), a flip assembly (37) fixed to the lower end of the lifting member (36), and a locking member (38) fixed to the output end of the flip assembly (37), wherein the locking member (38) is used to connect to the cuvette (2).

3. The water antibiotic monitoring device according to claim 2, characterized in that: The spectrum detection mechanism (1) comprises a spectrometer (11), an upper cover adjustment member (12), and a host computer connected to the spectrometer (11); the spectrometer (11) has an optical chamber cover, and the upper cover adjustment member (12) is used to adjust the open and closed state of the optical chamber cover.

4. The water antibiotic monitoring device according to claim 2, characterized in that: The water sample extraction mechanism (4) comprises two pumping components respectively arranged on both sides of the mounting frame (31), the pumping components comprising a metering pump (41), a water inlet pipe (42) arranged at the water inlet of the metering pump (41), an upper water pipe (43) arranged at the water outlet of the metering pump (41), a three-way valve (44) arranged at one end of the upper water pipe (43), and a water outlet pipe (45) and a return water pipe (46) respectively arranged at two ports of the three-way valve (44).

5. The water antibiotic monitoring device according to claim 2, characterized in that: The walking component (35) comprises a hanger (351), a roller (352) rotatably arranged on the top of the hanger (351), a driving gear (353) rotatably arranged on the inner side of the hanger (351), and a gear driving member for rotating the driving gear (353). The bottoms of the main track (32) and the auxiliary track (33) are both provided with convex teeth corresponding to the driving gear (353), so that when the driving gear (353) rotates, the roller (352) can roll on the main track (32) or the auxiliary track (33).

6. The water antibiotic monitoring device according to claim 5, characterized in that: The track driving member (34) comprises a linear driving member (341) arranged on the top of the mounting frame (31), a slide (342) arranged on the output shaft of the linear driving member (341), and an actuator (343) fixed to one side of the slide (342), wherein the actuator (343) is used to push the hanger (351) so that the secondary track (33) corresponding to the hanger (351) is close to or away from the main track (32).

7. The water antibiotic monitoring device according to claim 2, characterized in that: The device also comprises two assembly racks (5), the two groups of cuvettes (2) are respectively arranged inside the two assembly racks (5), and the locking member (38) is connected to the cuvettes (2) by locking the assembly racks (5).

8. The water antibiotic monitoring device according to claim 7, characterized in that: The flip assembly (37) comprises an assembly frame (371) fixedly mounted on the bottom of the lifting component (36), and a first motor (372) fixedly mounted on the inner side of the assembly frame (371); the locking member (38) comprises a connecting frame (381) fixedly mounted on the output end of the first motor (372); two bidirectional screw rods (382) respectively rotatably mounted on both sides of the connecting frame (381); two pairs of nut pairs (383) slidably mounted on both sides of the connecting frame (381); and a screw driving member for driving the two bidirectional screw rods (382) to rotate; the two pairs of nut pairs (383) are respectively threadedly connected to the two bidirectional screw rods (382); a plug rod (384) is disposed on the adjacent side of the paired nut pairs (383); the assembly frame (5) comprises an assembly plate (51) and a connecting tube (52) corresponding to the plug rod (384); and the cuvette (2) is fixedly mounted on the inner side of the assembly plate (51).

9. The water antibiotic monitoring device according to claim 8, characterized in that: An outer cylinder (373) is fixedly provided on one side of the assembly frame (371), and an inner cylinder (385) corresponding to the outer cylinder (373) is fixedly provided on one end of the connecting frame (381).

10. A method for monitoring antibiotics in water based on spectral characteristics, characterized in that: The water antibiotic monitoring device according to any one of claims 1 to 9 comprises the following steps: S1, adding water samples into the front group of cuvettes (2) in sequence through the water sample extraction mechanism (4); S2, water samples are added to the latter group of cuvettes (2) in sequence through the water sample extraction mechanism (4), during which the former group of cuvettes (2) carrying the water samples are loaded into the spectrum detection mechanism (1) through the water sample transport mechanism (3), the spectrum characteristics are extracted, and the antibiotic evaluation index is analyzed. After the analysis is completed, the water sample transport mechanism (3) takes out the cuvette (2) in the spectrum detection mechanism (1) and removes the water sample in the cuvette (2); S3, water samples are added to the front group of cuvettes (2) in sequence through the water sample extraction mechanism (4), during which the water sample transport mechanism (3) and the spectrum detection mechanism (1) analyze the antibiotic evaluation index of the rear group of cuvettes (2) in the manner of step S2, and remove the water samples; S4. According to the method of step S2 and step S3, water samples are added alternately to the two groups of cuvettes (2), and the analysis of antibiotic evaluation indexes and the removal of water samples are performed alternately.

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