Portable high-precision ozone colorimeter

Abstract

The invention relates to a portable high-precision ozone colorimeter, and belongs to the technical field of water ozone concentration metering equipment. The colorimeter comprises a colorimeter body, a cuvette, a box body, a plurality of storage tanks arranged in the box body, and a cleaning detection mechanism, the cleaning detection mechanism comprises an ultrasonic detection assembly and a trigger assembly which correspond to the storage tank, and the colorimeter body comprises a shell, a slot which is formed in one side of the shell and corresponds to the cuvette, and a light absorption detection assembly and a stop assembly which are arranged in the shell. When the storage tank is arranged in the box body, the trigger assembly enables the ultrasonic detection assembly to detect whether cleaning liquid exists in the storage tank, when the cuvette is pulled out of the slot, the stop assembly limits the cuvette to be inserted into the slot, and when the ultrasonic detection assembly detects that the storage tank is converted from the state of storing the cleaning liquid to the state of not storing the cleaning liquid, the limiting effect is relieved; pollution of the colorimeter is reduced; and the detection precision is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water body ozone concentration measuring equipment, and in particular relates to a portable high-precision ozone colorimeter. Background Art

[0002] In the field of water quality monitoring, accurate measurement of ozone concentration in water is crucial for evaluating its disinfection effect and ensuring water quality safety. Potassium iodide-DPD (N,N-diethyl-p-phenylenediamine) colorimetry is a commonly used ozone concentration detection technology. This method generates free iodine through the reaction of ozone with potassium iodide, which then reacts with the DPD reagent to form a color-developing substance. The color depth is proportional to the ozone concentration, thereby achieving quantitative analysis of the ozone concentration in water. Due to its simple operation and high sensitivity, the colorimeter is widely used in environmental monitoring, drinking water and wastewater treatment.

[0003] However, the existing ozone colorimeter has some shortcomings in actual use, which affects its detection accuracy and ease of operation. When carrying out ozone detection, the colorimeter needs to be cleaned and zeroed before the formal detection to ensure the accuracy of the measurement. The lack of these steps may cause instrument measurement deviations, which in turn affects the accuracy of the final measurement results. In addition, the existing ozone colorimeter is usually bulky and inconvenient to carry, especially difficult to operate in the field or on-site detection. Therefore, how to improve the detection accuracy and portability of the ozone colorimeter has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The purpose of the present invention is to provide a portable high-precision ozone colorimeter in order to solve the above problems.

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

[0006] A portable high-precision ozone colorimeter comprises a colorimeter body and a colorimetric dish for storing a liquid to be tested, a box body and a plurality of storage tanks arranged inside the box body, and a cleaning and detection mechanism;

[0007] The cleaning detection mechanism includes an ultrasonic detection component and a trigger component which are arranged inside the box and correspond to the storage tanks one by one. When the storage tanks are loaded into the box, the trigger component enables the ultrasonic detection component to detect whether there is cleaning liquid in the storage tanks;

[0008] The colorimeter body includes a shell, a slot arranged on one side of the shell and corresponding to the cuvette, and a light absorption detection component and a stopper component arranged in the shell; when the cuvette is pulled out of the slot, the stopper component restricts the cuvette from being inserted into the slot; when the ultrasonic detection component detects that the storage tank changes from a state of containing cleaning liquid to a state of not containing cleaning liquid, the restriction effect of the stopper component is released.

[0009] As a further optimization scheme of the present invention, the box body includes a storage box, a box cover arranged on one side of the storage box, and an inner liner fixed to the inner side of the storage box, and the inner liner is provided with detection grooves corresponding one to one with the storage tanks; the ultrasonic detection component includes an ultrasonic generator and an ultrasonic receiver arranged opposite to each other in the detection grooves, and a controller 2 connected to the ultrasonic generator and the ultrasonic receiver.

[0010] As a further optimization scheme of the present invention, a slide groove is provided on the side of the detection groove, and the trigger assembly includes an abutment plate slidably arranged on the inner side of the detection groove, a protrusion fixedly arranged on the edge of the abutment plate and corresponding to the slide groove, and a position switch for detecting the position of the protrusion. When the storage tank is embedded in the detection groove, the protrusion is in place, and the abutment plate is spring-connected to the end of the slide groove.

[0011] As a further optimization solution of the present invention, the ultrasonic receiver is fixedly arranged at one end of the detection slot, the ultrasonic generator is fixedly arranged at the inner side of the abutment plate, and the ultrasonic generator is located at the center of the abutment plate.

[0012] As a further optimization solution of the present invention, protrusions are provided on both sides of the edge of the abutting plate, and the position switch is arranged corresponding to one of the protrusions.

[0013] As a further optimization scheme of the present invention, an indicator light is provided on the outside of the box body. When the limiting effect of the stop assembly is released, the indicator light is in a first working state. When the stop assembly limits the cuvette and the cleaning detection mechanism detects that at least one storage tank is in a state of storing cleaning liquid, the indicator light is in a second working state. When the stop assembly limits the cuvette and the cleaning detection mechanism detects that none of the storage tanks is in a state of storing cleaning liquid, the indicator light is in a third working state.

[0014] As a further optimization scheme of the present invention, the storage tank includes a tank body and a tank cover rotatably arranged on the top of the tank body, a turning handle is fixedly arranged on the outer side of the tank cover, a drain port is opened on the side wall of the top of the tank body, and a water outlet is opened on the side wall of the tank cover, and when the tank cover is rotated by the turning handle, the water outlet and the drain port can be intersected or staggered.

[0015] As a further optimization scheme of the present invention, a water inlet is provided on the top wall of the tank body, and a water inlet is provided on the top wall of the tank cover. When the tank cover is rotated by the handle, the water inlet and the water inlet can intersect or intersect, and two baffle bars corresponding to the handle are provided on the outside of the tank body.

[0016] As a further optimization solution of the present invention, the light absorption detection component includes a light source and a light intensity sensor symmetrically arranged on both sides of the slot, and a controller connected to the light source and the light intensity sensor.

[0017] As a further optimization scheme of the present invention, the colorimeter body also includes a display, a zero adjustment button, a measurement button and a power button which are arranged on the shell and connected to the controller. Each time the colorimeter body is turned on, if the measurement button is pressed without zeroing, the light absorption detection component will not respond.

[0018] The beneficial effects of the present invention are:

[0019] 1) The present invention stores the colorimeter body and the cleaning liquid storage tank in a box, detects the use status of the cleaning liquid through a trigger component and an ultrasonic detection component, and when the cuvette is pulled out of the slot, the stopper component restricts the cuvette from being inserted into the slot. When the ultrasonic detection component detects that the storage tank changes from a state of storing cleaning liquid to a state of not storing cleaning liquid, the restriction of the stopper component is released, so that the detection personnel can be prevented from inserting the unwashed cuvette into the slot, thereby reducing the pollution of the colorimeter and improving the detection accuracy;

[0020] 2) After the convex block of the trigger assembly is in place, the position switch is triggered. After a delay of a period of time, if the position switch remains in the triggered state, the ultrasonic generator emits ultrasonic waves, thereby avoiding ultrasonic detection errors caused by the storage tank not being fully pressed into the detection groove, and avoiding frequent ultrasonic emission of the ultrasonic detection assembly, thereby saving power loss and extending the service life of the equipment;

[0021] 3) The present invention rotates the tank cover clockwise by the handle, and when the handle abuts against a lever, the water inlet is aligned with the water inlet, and the storage tank is in a water filling state. The tank cover is rotated counterclockwise by the handle, and when the handle abuts against another lever, the water outlet is aligned with the drain outlet, and the storage tank is in a water discharge state. When using the storage tank, there is no need to separate the tank body and the tank cover, and the state conversion can be completed by single-handed operation, thereby improving the convenience of operation, avoiding the operation of putting the storage tank back, and contaminating the cuvette, and further improving the accuracy of ozone detection;

[0022] 4) After the main body of the present invention is turned on each time, if the measurement button is pressed without zeroing, the light absorption detection component will not respond, so as to avoid the detection personnel from performing ozone concentration detection when zeroing is not performed, thereby improving the accuracy of ozone concentration detection;

[0023] 5) In the present invention, when the limiting effect of the stop assembly is released, when the stop assembly limits the cuvette and the cleaning detection mechanism detects that at least one storage tank is in a state of storing cleaning liquid, when the stop assembly limits the cuvette and the cleaning detection mechanism detects that any storage tank is not in a state of storing cleaning liquid, the indicator lights are in three different working states respectively, so as to remind the detection personnel to perform corresponding detection, cleaning and cleaning liquid filling work, thereby further improving the convenience and accuracy of colorimeter operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the split structure of the present invention;

[0026] Figure 3 is a partial cross-sectional view of a colorimeter body of the present invention;

[0027] Figure 4 is a partial cross-sectional view of the storage box of the present invention;

[0028] Figure 5 It is a schematic diagram of the side view structure of the colorimeter body of the present invention;

[0029] Figure 6 It is a schematic diagram of the top view of the storage tank of the present invention;

[0030] Figure 7 It is a schematic diagram of the side structure of the storage tank of the present invention.

[0031] In the figure: 1. Colorimeter body; 2. Colorimetric dish; 3. Box; 4. Storage tank; 5. Cleaning and testing mechanism; 6. Dropper; 7. Indicator light; 11. Shell; 12. Slot; 13. Light absorption detection assembly; 14. Stop assembly; 15. Display; 16. Zero adjustment button; 17. Measurement button; 18. Power button; 19. Shading cover; 31. Storage box; 32. Box cover; 33. Lining; 34. Testing slot; 35. Slide; 36. Groove; 37. Receiving slot; 38. Storage slot; 41. Tank body; 42, tank cover; 43, handle; 44, drain outlet; 45, water outlet; 46, water inlet; 47, water inlet; 48, stopper; 51, ultrasonic detection component; 52, trigger component; 131, light source; 132, light intensity sensor; 133, controller one; 141, sleeve; 142, electromagnet; 143, stopper; 511, ultrasonic generator; 512, ultrasonic receiver; 513, controller two; 521, abutment plate; 522, bump; 523, position switch. DETAILED DESCRIPTION

[0032] 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.

[0033] Example

[0034] like Figure 1-3As shown, a portable high-precision ozone colorimeter includes a colorimeter body 1 and a cuvette 2 for storing a liquid to be tested. It also includes a box 3 and a plurality of storage tanks 4 arranged inside the box 3, and a cleaning detection mechanism 5. The colorimeter body 1 and the cuvette 2 are placed inside the box 3 during storage and transportation. The cleaning detection mechanism 5 includes an ultrasonic detection component 51 and a trigger component 52 arranged inside the box 3 and corresponding to the storage tank 4. When the storage tank 4 is loaded into the box 3, the trigger component 52 enables the ultrasonic detection component 51 to detect whether there is cleaning liquid in the storage tank 4. The ultrasonic detection component 51 performs a detection after a period of time after the storage tank 4 is embedded in the box 3 and the trigger component 52 is triggered, which can avoid the ultrasonic detection component 51 from frequently emitting ultrasonic waves, save power loss and extend the service life of the ultrasonic detection component 51.

[0035] See also Figure 3 The colorimeter body 1 includes a housing 11, a slot 12 disposed on one side of the housing 11 and corresponding to the cuvette 2, a light absorption detection assembly 13 and a stopper assembly 14 disposed in the housing 11. The light absorption detection assembly 13 includes a light source 131 and a light intensity sensor 132 symmetrically disposed on both sides of the slot 12, and a controller 133 connected to the light source 131 and the light intensity sensor 132. The colorimeter body 1 also includes a display 15, a zero adjustment button 16, a measurement button 17 and a power button 18 disposed on the housing 11 and connected to the controller 133. A light shielding cover 19 is provided on one side of the housing 11 having the slot 12.

[0036] When the cuvette 2 is pulled out of the slot 12, the end of the stopper assembly 14 extends into the slot 12 to restrict the cuvette 2 from being inserted into the slot 12; when the ultrasonic detection assembly 51 detects that the storage tank 4 changes from a state of having cleaning liquid to a state of not having cleaning liquid, the end of the stopper assembly 14 is pulled out of the slot 12 to release the restriction on the cuvette 2. It should be noted that the ultrasonic detection assembly 51 detects that the storage tank 4 changes from a state of having cleaning liquid to a state of not having cleaning liquid, which involves two ultrasonic detections.

[0037] Specifically, during the cleaning liquid filling stage, when the storage tank 4 is filled with cleaning liquid and embedded in the box 3 at a position corresponding to the ultrasonic detection component 51, the trigger component 52 is triggered, and the trigger component 52 causes the ultrasonic detection component 51 to perform an ultrasonic detection to determine that the storage tank 4 is in a state where cleaning liquid is stored. During the ozone detection preparation stage, the colorimetric dish 2 needs to be cleaned. At this time, the storage tank 4 filled with cleaning liquid is taken out. After cleaning, the storage tank 4 is re-embedded in the box 3. At this time, the trigger component 52 causes the ultrasonic detection component 51 to perform an ultrasonic detection again to determine that the storage tank 4 is in a state where no cleaning liquid is stored. After the above two ultrasonic detections, the stopper component 14 releases its limiting effect.

[0038] The preparation stage of the first ozone detection after the colorimeter body 1 is turned on also involves zeroing work. In the preparation stage of zeroing work, the cuvette 2 also needs to be cleaned. In this embodiment, the cleaning liquid is preferably pure water. The liquid in the cuvette 2 during zeroing is the cleaning liquid. After cleaning the cuvette 2, the remaining cleaning liquid in the storage tank 4 is poured into the cuvette 2, and the formal zeroing work can be performed. It should be noted that when the liquid to be tested is extracted from the water body to be tested for ozone detection, it is necessary to press the measurement button 17 to start the light absorption detection component 13. After each power-on of the colorimeter body 1, if the measurement button 17 is pressed in the non-zeroing state, the light absorption detection component 13 does not respond. In addition, the zeroing work is essentially equivalent to an ozone detection work, and the only difference is that during the formal zeroing work, the liquid to be tested added to the cuvette 2 is the cleaning liquid, and the light absorption detection component 13 is turned on by pressing the zeroing button 16. Therefore, its specific working process will not be described in detail. Next, the device and process for extracting the test liquid from the water body for ozone detection are introduced in detail.

[0039] like Figure 3-5 As shown, the box body 3 includes a storage box 31, a box cover 32 hinged to the rear side of the top of the storage box 31, and a liner 33 fixed to the inner side of the storage box 31. The liner 33 is provided with a detection slot 34 corresponding to the storage tank 4. The storage box 31 is also provided with a handle at the rear side, which is not shown in the figure. The ultrasonic detection component 51 includes an ultrasonic generator 511 and an ultrasonic receiver 512 arranged oppositely in the detection slot 34, and a controller 2 513 connected to the ultrasonic generator 511 and the ultrasonic receiver 512. The controller 2 513 is connected to the controller 1 133 through a wireless signal. The storage box 31 and the housing 11 are provided with wireless signal transmitters connected to the controller 1 513 and the controller 2 133 respectively, so that after the ultrasonic detection component 51 detects the state of the storage tank 4, the controller 2 513 can adjust the stopper component 14 through the controller 1 133.

[0040] A slide groove 35 is provided on the side of the detection groove 34, and the trigger assembly 52 includes an abutment plate 521 slidably provided inside the detection groove 34, a convex block 522 fixedly provided at the edge of the abutment plate 521 and corresponding to the slide groove 35, and a position switch 523 for detecting the position of the convex block 522. When the storage tank 4 is inserted into the detection groove 34, the storage tank 4 is clamped between the abutment plate 521 and the detection groove 34, the convex block 522 on the abutment plate 521 is in position, and the abutment plate 521 is spring-connected with the end of the slide groove 35. Specifically, the ultrasonic receiver 512 is fixedly provided at one end of the detection groove 34, and the ultrasonic generator 511 is fixedly provided inside the abutment plate 521, and the ultrasonic generator 511 is located at the center of the abutment plate 521. Both sides of the edge of the abutment plate 521 are provided with convex blocks 522, and the position switch 523 is provided corresponding to one of the convex blocks 522. Each detection slot 34 has a pair of slide slots 35 on its side, one of which is recessed to one side to form a groove 36 for mounting the position switch 523. The pair of slide slots 35 are respectively matched with two protrusions 522 on the abutment plate 521, so that the forces on both sides of the trigger assembly 52 are more balanced.

[0041] In addition, the ozone colorimeter also includes a dropper 6, and a receiving tank 37 corresponding to the dropper 6, the colorimeter body 1 and the cuvette 2 is provided on the inner liner 33. Ozone detection involves potassium iodide reagent and DPD reagent. Two storage tanks 38 are also provided on the inner liner 33, and the packaging bags corresponding to the above two reagents are placed in the two storage tanks 38 respectively. The following is a detailed description of the cleaning liquid filling stage, the ozone detection preparation stage and the formal ozone detection stage.

[0042] During the cleaning liquid filling stage, the storage tank 4 is taken out from the detection tank 34, the cleaning liquid is added to the storage tank 4, and the storage tank 4 is put back into the detection tank 34. During the process of putting the storage tank 4, the abutment plate 521 is pushed backward by one end of the storage tank 4, so that a space sufficient to accommodate the storage tank 4 is formed in the detection tank 34, and then the storage tank 4 can be pressed into the detection tank 34.

[0043] After the abutment plate 521 moves backward to its position, the protrusion 522 reaches the rear end of the slide groove 35 and triggers the position switch 523. After a delay, if the position switch 523 remains in the triggered state, the ultrasonic wave is emitted through the ultrasonic generator 511. The purpose of the delay is to avoid ultrasonic detection errors caused by the storage tank 4 not being fully pressed into the detection groove 34. After the ultrasonic generator 511 emits the ultrasonic wave, the ultrasonic wave is received by the ultrasonic receiver 512, and the time interval from the emission to the reception of the ultrasonic wave is analyzed by the controller 2 513 to determine whether the ultrasonic wave has passed through the cleaning liquid. The controller 2 513 analyzes the ultrasonic reception time and determines that the ultrasonic wave has passed through the cleaning liquid, and records the state of the storage tank 4 in the detection groove 34 as a state in which the cleaning liquid is stored. According to the above process, the controller 2 513 records the state of the storage tank 4 in each detection groove 34 in turn.

[0044] In the ozone detection preparation stage, the colorimeter body 1, the cuvette 2 and the storage tank 4 are taken out from the lining 33. The cleaning liquid in the storage tank 4 is used to clean the cuvette 2, and the liquid to be tested is sucked from the water body to be tested through the dropper 6, and the liquid to be tested is dripped into the cuvette 2. After the storage tank 4 is placed in the detection tank 34, the trigger component 52 is triggered, and the trigger component 52 starts the ultrasonic detection component 51. The ultrasonic detection component 51 performs ultrasonic receiving time analysis according to the above process, and determines that the ultrasonic wave has not passed through the cleaning liquid, that is, it is determined that the storage tank 4 has changed from a state of storing cleaning liquid to a state of not storing cleaning liquid. The controller 2 513 releases the limiting effect of the stopper component 14 through the controller 1 133.

[0045] In the formal ozone detection stage, insert the cuvette 2 into the slot 12. Then tear open the two packaging bags in turn, pour the potassium iodide reagent and the DPD reagent into the cuvette 2 in turn, and put the light shielding cover 19 on the outside of the cuvette 2. The ozone in the liquid to be tested reacts with the potassium iodide to generate free iodine, and the free iodine reacts with the DPD to generate a red color-developing substance. After a period of reaction, press the measurement button 17, the light source 131 emits an ultraviolet light source, and the light intensity sensor 132 cooperates with the controller 133 to analyze the absorbance of the color-developing substance to ultraviolet light, thereby obtaining the ozone concentration of the liquid to be tested. After pulling out the cuvette 2, the absorbance changes significantly, and the stop assembly 14 automatically restores its limiting effect. After that, the water body to be tested can be sampled and ozone tested multiple times according to the above process.

[0046] The stopper assembly 14 is a device with telescopic capability. In this embodiment, the stopper assembly 14 includes a sleeve 141 fixedly mounted on the inner side of the housing 11, and two electromagnets 142 arranged inside the sleeve 141, wherein one electromagnet 142 is fixedly mounted on the inner side of the housing 11, and the other electromagnet 142 is slidably connected to the sleeve 141. A stopper 143 is fixedly mounted on the side of the electromagnet 142 slidably connected to the sleeve 141 facing the slot 12, and the electromagnet 142 is spring-connected to the inner wall of the housing 11. A through hole corresponding to the stopper 143 is provided on the slot 12, and the stopper 143 is preferably a rod-shaped structure. When the stopper assembly 14 plays a limiting role, the two electromagnets 142 are energized and repel each other, pushing the rod-shaped structure to be embedded in the slot 12. When the limiting role is released, the two electromagnets 142 are de-energized, and the electromagnet 142 close to the slot 12 drives the rod-shaped structure out of the slot 12 under the action of the spring.

[0047] Further, an indicator light 7 is provided on the outside of the box body 3. When the limiting effect of the stopper assembly 14 is released, the indicator light 7 is in the first working state. When the stopper assembly 14 limits the cuvette 2 and the cleaning detection mechanism 5 detects that at least one storage tank 4 is in a state of storing cleaning liquid, the indicator light 7 is in the second working state. When the stopper assembly 14 limits the cuvette 2 and the cleaning detection mechanism 5 detects that any storage tank 4 is not in a state of storing cleaning liquid, the indicator light 7 is in the third working state. In this embodiment, in the first working state, the indicator light 7 is green, in the second working state, the indicator light 7 is red, and in the third working state, the indicator light 7 is red and flashes continuously. It is used to remind the detection personnel to perform corresponding detection, cleaning and cleaning liquid filling work. In addition, in some other embodiments, the specific working state of the indicator light 7 can also be adjusted according to actual needs. For example, the three working states are distinguished by three different light colors.

[0048] Further, see Figure 6 and Figure 7 The storage tank 4 is cylindrical as a whole, and includes a tank body 41 and a tank cover 42 rotatably arranged on the top of the tank body 41. A handle 43 is fixedly arranged on the outside of the tank cover 42. A drain port 44 is provided on the side wall at the top of the tank body 41, and a water outlet 45 is provided on the side wall of the tank cover 42. When the tank cover 42 is rotated by the handle 43, the water outlet 45 can intersect or intersect with the drain port 44. The top wall and the bottom wall of the tank body 41 are both flat, and the top wall of the tank cover 42 is flat. A water inlet 46 is provided on the top wall of the tank body 41, and a water inlet 47 is provided on the top wall of the tank cover 42. When the tank cover 42 is rotated by the handle 43, the water inlet 47 can intersect or intersect with the water inlet 46. Two blocking rods 48 corresponding to the handle 43 are provided on the outside of the tank body 41.

[0049] During the process of loading the cleaning liquid, the tank cover 42 is rotated clockwise by the rotating handle 43, and when the rotating handle 43 abuts the baffle 48 on one side of the tank body 41, the water inlet 47 is aligned with the water inlet 46, and the storage tank 4 is in a water filling state, and the cleaning liquid can be injected into the tank body 41. When using the cleaning liquid in the storage tank 4, the tank cover 42 is rotated counterclockwise by the rotating handle 43, and when the rotating handle 43 abuts the baffle 48 on the other side of the tank body 41, the storage tank 4 is in a water discharge state, and the water outlet 45 is aligned with the drain port 44, so that the cleaning liquid can be poured out of the storage tank 4 conveniently. When using the storage tank 4, there is no need to separate the tank body 41 and the tank cover 42, and the storage tank 4 can be put into a water filling state, a water discharge state or a completely closed state by a single-handed operation. Improve the convenience of operation, and avoid the contamination of the contrast color dish 2 caused by the contamination of both hands during the process of putting the storage tank 4 back. Further improve the accuracy of ozone detection.

[0050] 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 portable high-precision ozone colorimeter, comprising a colorimeter body (1) and a cuvette (2) for storing a liquid to be tested, characterized in that: It also includes a box body (3), a plurality of storage tanks (4) arranged inside the box body (3), and a cleaning and detection mechanism (5); The cleaning detection mechanism (5) comprises an ultrasonic detection component (51) and a trigger component (52) which are arranged inside the box (3) and correspond one-to-one with the storage tank (4); when the storage tank (4) is loaded into the box (3), the trigger component (52) causes the ultrasonic detection component (51) to detect whether cleaning liquid is present in the storage tank (4); The colorimeter body (1) comprises a housing (11), a slot (12) arranged on one side of the housing (11) and corresponding to the cuvette (2), and a light absorption detection component (13) and a stopper component (14) arranged in the housing (11); when the cuvette (2) is pulled out of the slot (12), the stopper component (14) restricts the cuvette (2) from being inserted into the slot (12); when the ultrasonic detection component (51) detects that the storage tank (4) changes from a state in which cleaning liquid is stored to a state in which no cleaning liquid is stored, the restriction effect of the stopper component (14) is released.

2. The portable high-precision ozone colorimeter according to claim 1, characterized in that: The box body (3) comprises a storage box (31), a box cover (32) arranged on one side of the storage box (31), and an inner lining (33) fixedly arranged on the inner side of the storage box (31), wherein the inner lining (33) is provided with detection slots (34) corresponding to the storage tanks (4) one by one; the ultrasonic detection component (51) comprises an ultrasonic generator (511) and an ultrasonic receiver (512) arranged opposite to each other in the detection slots (34), and a second controller (513) connected to the ultrasonic generator (511) and the ultrasonic receiver (512).

3. The portable high-precision ozone colorimeter according to claim 2, characterized in that: A slide groove (35) is provided on the side of the detection groove (34). The trigger assembly (52) comprises an abutment plate (521) slidably arranged inside the detection groove (34), a convex block (522) fixedly arranged on the edge of the abutment plate (521) and corresponding to the slide groove (35), and a position switch (523) for detecting the position of the convex block (522). When the storage tank (4) is inserted into the detection groove (34), the convex block (522) is in position, and the abutment plate (521) is spring-connected to the end of the slide groove (35).

4. The portable high-precision ozone colorimeter according to claim 3, characterized in that: The ultrasonic receiver (512) is fixedly arranged at one end of the detection slot (34), and the ultrasonic generator (511) is fixedly arranged on the inner side of the abutment plate (521), and the ultrasonic generator (511) is located at the center of the abutment plate (521).

5. The portable high-precision ozone colorimeter according to claim 3, characterized in that: Both sides of the edge of the abutment plate (521) are provided with protrusions (522), and the position switch (523) is arranged corresponding to one of the protrusions (522).

6. The portable high-precision ozone colorimeter according to claim 1, characterized in that: An indicator light (7) is provided on the outside of the box body (3). When the limiting effect of the stopper assembly (14) is released, the indicator light (7) is in a first working state. When the stopper assembly (14) limits the cuvette (2) and the cleaning detection mechanism (5) detects that at least one storage tank (4) is in a state of storing cleaning liquid, the indicator light (7) is in a second working state. When the stopper assembly (14) limits the cuvette (2) and the cleaning detection mechanism (5) detects that any storage tank (4) is not in a state of storing cleaning liquid, the indicator light (7) is in a third working state.

7. The portable high-precision ozone colorimeter according to claim 1, characterized in that: The storage tank (4) comprises a tank body (41) and a tank cover (42) rotatably arranged on the top of the tank body (41); a rotating handle (43) is fixedly arranged on the outer side of the tank cover (42); a water discharge port (44) is provided on the side wall of the top of the tank body (41); and a water outlet (45) is provided on the side wall of the tank cover (42); when the tank cover (42) is rotated by the rotating handle (43), the water outlet (45) and the water discharge port (44) can be intersected or staggered.

8. The portable high-precision ozone colorimeter according to claim 7, characterized in that: A water inlet (46) is provided on the top wall of the tank body (41), and a water inlet (47) is provided on the top wall of the tank cover (42). When the tank cover (42) is rotated by a rotating handle (43), the water inlet (47) and the water inlet (46) can be intersected or interlaced. Two blocking rods (48) corresponding to the rotating handle (43) are provided on the outer side of the tank body (41).

9. The portable high-precision ozone colorimeter according to claim 1, characterized in that: The light absorption detection component (13) comprises a light source (131) and a light intensity sensor (132) symmetrically arranged on both sides of the slot (12), and a controller (133) connected to the light source (131) and the light intensity sensor (132).

10. The portable high-precision ozone colorimeter according to claim 9, characterized in that: The colorimeter body (1) further comprises a display (15), a zero adjustment button (16), a measurement button (17) and a power button (18) which are arranged on the housing (11) and connected to the controller 1 (133). Each time the colorimeter body (1) is turned on, if the measurement button (17) is pressed in a non-zero adjustment state, the light absorption detection component (13) does not respond.

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