Test tube cleaning device in full-automatic rapid method COD (Chemical Oxygen Demand) tester

Abstract

The utility model provides a test tube cleaning device in a full-automatic rapid method COD (Chemical Oxygen Demand) tester. The cleaning device comprises a shell, a first cavity and a second cavity are formed in the shell, the upper ends of the first cavity and the second cavity are open, and test tubes can penetrate through the upper ends of the first cavity and the second cavity; an overflow port is formed in the side wall of the first chamber, and a flushing pipe is vertically arranged in the first chamber; a window is formed in the side wall of the second cavity, and a water inlet hole and a water drainage hole are formed in the side wall of the shell; and the material transferring manipulator comprises a clamping jaw capable of realizing rotation, and the clamping jaw penetrates through the window, extends into the second cavity and is used for overturning the test tube. The test tube cleaning device in the full-automatic rapid method COD tester is compact in structure, small in installation space, capable of achieving automatic cleaning of the test tube, high in cleaning efficiency and good in cleaning effect, effectively improves the continuity and the overall efficiency of the experimental process, reduces human intervention and ensures the accuracy and reliability of experimental data.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid detection field, especially in a test tube cleaning device in full -automatic quick method COD determination appearance. BACKGROUND

[0002] In the field of wastewater treatment and environmental protection, chemical oxygen demand (COD) determination is an important water quality detection means. The traditional COD determination method often uses full-automatic quick method COD determination appearance, and the pipette is used for accurately sucking and transferring the measured substance in the sample. This kind of pipette is usually small in size, has the characteristics of high precision and fast response, greatly improves the efficiency and accuracy of determination. However, the existing full-automatic quick method COD determination appearance usually lacks automatic cleaning function for test tubes. This leads to the fact that the operator must manually clean the test tube before and after each experiment, which not only increases the additional workload, but also may cause cross contamination, affecting the accuracy of the determination result.

[0003] Most of the COD determination instruments on the current market can provide continuous automatic operation, but still rely on manual intervention in the key link of test tube cleaning, and cannot realize true "full automation" operation. This situation limits the widespread use of the determination instrument, especially in laboratory environments that require frequent and accurate detection. Therefore, developing a full-automatic quick method COD determination appearance that can integrate automatic test tube cleaning function has important practical significance for improving environmental protection detection efficiency and accuracy and solving the problems caused by manual cleaning. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a test tube cleaning device in full-automatic quick method COD determination appearance, which can realize automatic cleaning, has good cleaning effect and can reduce the labor intensity of scientific researchers.

[0005] The utility model provides a test tube cleaning device in full-automatic quick method COD determination appearance, which comprises:

[0006] The material moving manipulator 2 is used for grabbing the test tube and moving the material;

[0007] The cleaning device 4 is located on the moving path of the material moving manipulator 2, and the cleaning device 4 comprises a shell 41, a first cavity 40a and a second cavity 40b are formed in the shell 41, the upper ends of the first cavity 40a and the second cavity 40b are open and can contain the test tube; the side wall of the first cavity 40a is provided with an overflow port 404 communicated with the second cavity 40b, and a flushing pipe 42 is vertically arranged in the first cavity 40a; the side wall of the second cavity 40b is provided with a window 403, the side wall of the shell 41 is provided with a water inlet hole communicated with the flushing pipe 42 and used for water supply and a drain hole communicated with the bottom surface of the second cavity 40b and used for water drainage;

[0008] The transfer manipulator 3 comprises a clamping jaw 31 capable of rotating, which penetrates through the window 403 and extends into the second chamber 40b for overturning the test tube.

[0009] The present application is provided with a cleaning device 4, which can overturn and automatically flush the test tube, ensuring that the test tube is thoroughly cleaned. The flushing pipe 42 sprays water flow to efficiently clean (flush) the inside of the test tube and remove residues; the overflow port 404 discharges surface sewage, which ensures the cleaning effect while reducing water resource waste. It eliminates the manual intervention of test tube cleaning, realizing truly "full automation" operation.

[0010] Further, the longitudinal section of the second chamber 40b is circular, i.e. the second chamber 40b is a horizontally arranged cylindrical space, which facilitates the stable overturning of the test tube therein, on the one hand facilitating processing, and on the other hand improving space utilization. The rotation axis of the clamping jaw 31 is coaxial with the second chamber 40b, which facilitates processing and assembly and improves space utilization, realizing the miniaturization design of the whole.

[0011] Further, the window 403 is coaxial with the second chamber 40b, which facilitates processing, and at the same time facilitates the coaxial installation of the clamping jaw 31.

[0012] Further, the connecting line direction of the first chamber 40a and the second chamber 40b is perpendicular to the opening direction of the window 403; it can effectively control the overall width of the shell 41, the layout is reasonable, which facilitates compact installation of the equipment, improves space utilization, and realizes miniaturization design of the equipment.

[0013] Further, the cross section of the first chamber 40a is circular, and the flushing pipe 42 is coaxial with the first chamber 40a; it facilitates processing, and at the same time improves the overall compactness, facilitating volume control.

[0014] Further, the depth of the second chamber 40b is greater than the depth of the first chamber 40a.

[0015] Further, a communication hole 405 is arranged between the first chamber 40a and the second chamber 40b, the communication hole 405 is located at the upper end of the overflow port 404, and the side wall of the shell 41 is provided with an air pipe 43 in communication with the first chamber 40a; the communication hole 405 and the air pipe are arranged, the air pipe is connected with a fan to form air flow, which is the exhaust end of the measuring instrument, ensuring the air circulation inside the measuring instrument, effectively exhausting the steam and odor generated during the cleaning process, improving the comfort of the working environment, and at the same time ensuring the long-term stable operation of the equipment.

[0016] Further, the upper end of the first chamber 40a is provided with a first opening 401, the upper end of the second chamber 40b is provided with a second opening 402, and the top surface of the shell 41 is provided with a groove 4012 communicating the first opening 401 and the second opening 402, and the length direction of the groove 4012 is parallel to the connecting line of the first opening 401 and the second opening 402; the groove 4012 structure can avoid the residual liquid in the inverted test tube from dripping onto the surface of the shell 41, and can drain it into the first chamber 40a or the second chamber 40b, ensuring the cleanliness of the shell 41.

[0017] Further, the width of the groove 4012 is greater than or equal to the outer diameter of the test tube, ensuring that the dripping liquid can enter the groove 4012 and ensuring the cleanliness of the surface of the shell 41.

[0018] Further, the shell 41 is spliced from an upper shell and a lower shell, which is convenient for manufacturing, processing, and subsequent maintenance and cleaning.

[0019] Further, it also includes a discharge pipe 6 for collecting disposable pipette tips and a storage groove 5 for placing bottle caps, and the discharge pipe 6 and the storage groove 5 are located on the movement path of the material moving manipulator 2; automatic uncapping, liquid pouring and cleaning are realized, and the degree of automation is improved.

[0020] Further, the shell 41 is spliced from an upper shell and a lower shell, which is convenient for manufacturing, processing, and subsequent maintenance and cleaning.

[0021] Further, quick couplings are arranged on the water inlet hole and the drain hole, which can realize quick connection with the water inlet pipe and the water outlet pipe.

[0022] The application sets a cleaning device, which can overturn and automatically flush the test tube, ensuring thorough cleaning of the test tube. The flushing pipe sprays water flow to efficiently clean (flush) the inside of the test tube and remove residues; the overflow port discharges surface sewage to keep the liquid level of the first chamber constant, avoid splashing, and protect the operating environment. While ensuring the cleaning effect, the application reduces water resource waste. The application eliminates manual intervention in test tube cleaning, realizing truly "full automation" operation. The test tube cleaner in the full-automatic rapid COD determination instrument has compact structure, small installation space, can realize automatic cleaning of the test tube, and has high cleaning efficiency and good effect, effectively improving the coherence and overall efficiency of the experimental process, reducing human intervention, and ensuring the accuracy and reliability of experimental data. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1It is the structure schematic diagram of test tube cleaning device in full automatic quick method COD determination appearance;

[0024] Figure 2 It is the partial enlarged view of test tube cleaning device in full automatic quick method COD determination appearance;

[0025] Figure 3 It is the installation schematic diagram of material transfer manipulator of test tube cleaning device in full automatic quick method COD determination appearance;

[0026] Figure 4 It is the structure schematic diagram of cleaning device of test tube cleaning device in full automatic quick method COD determination appearance;

[0027] Figure 5 It is the first plane section view of cleaning device of test tube cleaning device in full automatic quick method COD determination appearance;

[0028] Figure 6 It is the second plane section view of cleaning device of test tube cleaning device in full automatic quick method COD determination appearance;

[0029] Figure 7 It is the third plane section view of cleaning device of test tube cleaning device in full automatic quick method COD determination appearance.

[0030] In the figure: 1, installation platform, 2, material transfer manipulator, 3, material transfer manipulator, 31, clamping jaw, 4, cleaning device, 40a, first chamber, 40b, second chamber, 401, first opening, 402, second opening, 4012, groove body, 403, window, 404, overflow port, 405, communication hole, 406, drainage flow channel, 41, shell, 42, flushing pipe, 43, air pipe, 451, first quick connector, 452, second quick connector, 5, storage groove, 6, discharge pipe. DETAILED DESCRIPTION

[0031] The embodiment of the utility model is described in detail below with reference to the drawings.

[0032] Reference Figures 1-7 The utility model provides a kind of test tube cleaning device in full automatic quick method COD determination appearance, with test tube cleaning function, it includes installation platform 1, material transfer manipulator 2, cleaning device 4 and material transfer manipulator 3 are equipped on installation platform 1;

[0033] Material transfer manipulator 2 is used to grab test tube and carry out material transfer;The material transfer manipulator 2 has three-axis sliding table, can realize the movement of X axis, Y axis and Z axis, is equipped with claw body on the material transfer manipulator 2, for the clamping of test tube, simultaneously, the claw body can realize rotation, cooperate with material transfer manipulator 3, for the loading and unloading (tighten or loosen) of test tube cover body.

[0034] The cleaning device 4 is used for cleaning the test tube, which is located on the moving path of the material transfer robot 2. The cleaning device 4 includes a housing 41 which is a cuboid structure. A first chamber 40a and a second chamber 40b are formed in the housing 41. The upper ends of the first chamber 40a and the second chamber 40b are open, and the test tube can pass through the first chamber 40a and the second chamber 40b vertically to realize the flushing and overturning of the test tube. An overflow port 404 is arranged on the side wall of the first chamber 40a. The overflow port 404 is in communication with the second chamber 40b. When the liquid level exceeds the overflow port 404, the liquid automatically flows into the second chamber 40b. The residual liquid floating on the liquid surface is discharged to the second chamber 40b through the overflow port 404, so that the liquid level in the first chamber 40a can be kept constant, and the cleaning efficiency and effect are improved. During the flushing, the lower end of the test tube is located below the liquid level, so that the lower end of the test tube is “sealed”, and the splashing of water during the flushing is prevented, and the operating environment is kept clean. A flushing pipe 42 is vertically arranged in the first chamber 40a. The flushing pipe 42 is a cylindrical pipe body. The top of the flushing pipe 42 is used as a water outlet end, and the bottom of the flushing pipe 42 is connected to a water inlet pipe. A window 403 is arranged on the side wall of the second chamber 40b. The window 403 is an opening structure, and is used for allowing the clamping jaw 31 of the material transfer robot 3 to pass through. A water inlet hole and a drainage hole are arranged on the side wall of the housing 41. In this embodiment, a drainage flow channel 406 is formed in the housing 41. The drainage flow channel 406 is in communication with the drainage hole and the second chamber 40b. The drainage flow channel 406 is parallel to the length direction of the housing 41, and is tangent to the bottom surface of the second chamber 40b. The drainage flow channel 406 is convenient for processing, and can ensure sufficient drainage. The water inlet hole is in communication with the flushing pipe 42, and is used for supplying water to the flushing pipe 42. A first quick connector 451 is arranged on the water inlet hole. The first quick connector 451 is connected to a water supply pipe by a pipe body. A pump is arranged on the water supply pipe, and provides power for the water flow. The drainage hole is in communication with the bottom surface of the second chamber 40b, and is used for draining water. A second quick connector 452 is arranged on the drainage hole. The second quick connector 452 can be quickly connected to a drainage pipe, and is used for discharging the cleaning liquid.

[0035] The material transfer robot 3 includes a clamping jaw 31. The clamping jaw 31 can rotate. The clamping jaw 31 passes through the window 403 and extends into the second chamber 40b. The clamping jaw 31 is used for overturning the test tube. After the test tube which has the opening facing upward is overturned by 180 degrees, the opening of the test tube faces downward, so that the liquid can be poured out and the next flushing operation is realized. Meanwhile, the material transfer robot 3 can realize the rotation and shaking of the test tube, and can clamp and fix the test tube when the cover is assembled or disassembled.

[0036] The cleaning device 4 is arranged to overturn and automatically wash the test tube, so as to ensure that the test tube is thoroughly cleaned. The flushing pipe 42 sprays water flow to efficiently clean (wash) the inside of the test tube and remove residues. The overflow port 404 discharges surface sewage to keep the liquid level of the first chamber 40a constant, avoid splashing and protect the operating environment. The cleaning device 4 ensures the cleaning effect while reducing water waste. The cleaning device 4 eliminates manual intervention in the cleaning of the test tube and realizes truly automatic operation.

[0037] To improve the compactness and aesthetics of the overall structure, the longitudinal section of the second chamber 40b is circular, i.e., the second chamber 40b is a horizontally arranged cylindrical space, so that the test tube is stably overturned therein. On the one hand, this facilitates processing, and on the other hand, it improves space utilization. The rotation axis of the clamping jaw 31 is coaxial with the second chamber 40b, which facilitates processing and improves space utilization, thereby achieving miniaturization design of the whole. In this embodiment, the window 403 is coaxial with the second chamber 40b, which facilitates processing and facilitates coaxial installation of the clamping jaw 31. The cross section of the first chamber 40a is circular, i.e., the first chamber 40a is a vertically arranged cylindrical space, and the flushing pipe 42 is coaxially arranged with the first chamber 40a. This facilitates processing and improves the compactness of the whole, facilitates volume control, facilitates cleaning of the cleaning device 4, and avoids dead angles. In this application, the depth (vertical direction) of the second chamber 40b is greater than the depth of the first chamber 40a. When the test tube is overturned in the second chamber 40b, the upper end can be prevented from leaking, and the insertion depth of the test tube in the first chamber 40a during washing can be effectively controlled, thereby improving the cleaning efficiency.

[0038] To reduce the overall volume of the cleaning device 4, the connecting line direction of the first chamber 40a and the second chamber 40b is perpendicular to the opening direction of the window 403. Specifically, taking the length direction of the shell 41 as the left-right direction and the width direction as the front-rear direction, the first chamber 40a and the second chamber 40b are arranged at the left and right ends of the shell 41, and the window 403 is arranged at the front end or the rear end of the second chamber 40b. This can effectively control the overall width of the shell 41, has a reasonable layout, facilitates compact installation of the equipment, improves space utilization, and realizes miniaturization design of the equipment.

[0039] To improve the internal working environment of the measuring instrument, a communication hole 405 is arranged between the first chamber 40a and the second chamber 40b to communicate the first chamber 40a and the second chamber 40b. The communication hole 405 is located at the upper end of the overflow port 404. A air pipe 43 is arranged on the side wall of the shell 41, which communicates with the first chamber 40a. The air pipe 43 is connected with a fan to generate negative pressure and form air flow, serving as an exhaust end of the measuring instrument to ensure air circulation inside the measuring instrument, effectively discharge steam and odor generated during the cleaning process, improve the comfort of the working environment, and ensure long-term stable operation of the equipment.

[0040] In order to further improve the working environment, ensure the surface of the shell 41 clean, avoid the droplets, in the application, the first chamber 40a upper end is provided with a first opening 401, the second chamber 40b upper end is provided with a second opening 402, while, the top surface of the shell 41 is provided with a groove 4012, the groove 4012 is strip-shaped, and the first opening 401 and the second opening 402 are communicated, the length direction of the groove 4012 is parallel to the connecting line of the first opening 401 and the second opening 402, that is, the length direction of the groove 4012 is parallel to the length direction of the shell 41, that is, left and right arrangement; the structure of the groove 4012 is arranged, which can avoid the residual liquid in the inverted test tube from falling on the surface of the shell 41, and can drain it to the first chamber 40a or the second chamber 40b, so as to ensure the cleanliness of the shell 41; in order to achieve better effect, the width of the groove 4012 in the embodiment is greater than or equal to the outer diameter of the test tube, so as to ensure that the falling liquid can enter the groove 4012 completely, and ensure the surface of the shell 41 clean.

[0041] In order to facilitate processing, manufacturing and assembly, in the application, the shell 41 adopts split structure, which is spliced by upper shell and lower shell, and the two are connected in a detachable manner, which is convenient for later maintenance and cleaning.

[0042] In order to further improve the degree of automation, in the application, the measuring instrument further comprises a discharge pipe 6 and a storage tank 5, the discharge pipe 6 is used for placing or discharging the disposable gun head, the storage tank 5 is used for placing the bottle cap of the test tube, the discharge pipe 6 and the storage tank 5 are located on the moving path of the material moving manipulator 2, so as to realize automatic opening, pouring and cleaning, and improve the degree of automation.

[0043] The working process of the application is described as follows:

[0044] The material moving manipulator 2 inserts the test tube with the cover into the second chamber 40b from top to bottom, and the test tube is clamped and fixed by the clamping jaw 31 of the material rotating manipulator 3, the material moving manipulator 2 rotates and loosens the cover on the upper end of the test tube until the cover is separated from the test tube, the material moving manipulator 2 moves the cover to above the storage groove 5 and then loosens, so that the cover is discharged; at the same time, the material rotating manipulator 3 rotates by 180 degrees, so that the opening end of the test tube faces downward, the liquid in the test tube is discharged into the second chamber 40b, and is discharged through the drainage channel 406 of the second chamber 40b; after the turning, the test tube in the second chamber 40b is moved into the first chamber 40a by the material moving manipulator 2, and the flushing pipe 42 is inserted into the test tube; when it is detected that the test tube is located in the second chamber 40b (detected by the feedback of the material moving manipulator 2), the flushing pipe 42 discharges water and realizes flushing, after the flushing is completed, the test tube in the first chamber 40a is moved into the second chamber 40b by the material moving manipulator 2, the clamping jaw 31 of the material rotating manipulator 3 clamps and fixes the test tube and shakes off the excess water after cleaning by rotating. Then the material moving manipulator 2 moves the test tube after the water is shaken off to the test tube waiting position, so that the test tube is placed and dried.

[0045] The cleaning device is arranged, the test tube can be turned over and automatically flushed, and the test tube can be thoroughly cleaned. The flushing pipe sprays water flow, the inside of the test tube is efficiently cleaned (flushed), and residual substances are removed; the overflow port discharges surface sewage, so that the liquid level of the first chamber is constant, splashing is avoided, and the operation environment is protected. While ensuring the cleaning effect, water resource waste is reduced. The application eliminates manual intervention in the cleaning of the test tube, and realizes truly "full automation" operation. The test tube cleaner in the full-automatic rapid COD determination instrument has the advantages of compact structure, small installation space, automatic cleaning of the test tube, high cleaning efficiency and good cleaning effect, effectively improves the continuity and overall efficiency of the experimental process, reduces human intervention, and ensures the accuracy and reliability of experimental data.

[0046] The above only describes preferred embodiments of the application, and it should be noted that, for ordinary skilled persons in the technical field, without departing from the technical principles of the application, a plurality of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection range of the application.

Claims

1. A test tube cleaner in a full-automatic rapid COD determination instrument, characterized in that, The utility model relates to a test tube washing device, which comprises the following parts: a transfer manipulator for grabbing test tubes and transferring them; a washing device located on the moving path of the transfer manipulator, which comprises a shell with a first chamber and a second chamber formed inside, the upper ends of the first chamber and the second chamber being open and capable of allowing test tubes to pass through; the side wall of the first chamber is provided with an overflow port communicating with the second chamber, and a flushing pipe is vertically arranged in the first chamber; the side wall of the second chamber is provided with a window, the side wall of the shell is provided with a water inlet hole communicating with the flushing pipe and used for supplying water and a drain hole communicating with the bottom of the second chamber and used for draining water; a rotating manipulator comprising a clamping jaw capable of rotating, the clamping jaw passing through the window and extending into the second chamber for overturning test tubes.

2. The test tube cleaner in the full-automatic rapid COD determination instrument according to claim 1, characterized in that: The longitudinal section of the second chamber is circular, and the rotation axis of the clamping jaw is coaxial with the second chamber.

3. The test tube cleaner in the automatic rapid COD determination instrument according to claim 2, characterized in that: The window is coaxial with the second chamber.

4. The test tube cleaner in the automatic rapid COD determination apparatus according to claim 1, wherein: The connecting line direction of the first chamber and the second chamber is perpendicular to the opening direction of the window.

5. The test tube cleaner in the automatic rapid COD determination apparatus according to claim 1, wherein: The cross section of the first chamber is circular, and the flushing pipe is coaxial with the first chamber.

6. The test tube cleaner in the automatic rapid COD determination apparatus according to claim 1, wherein: The depth of the second chamber is greater than that of the first chamber.

7. The test tube cleaner in the automatic rapid COD determination instrument according to claim 1, characterized in that: A communication hole is arranged between the first chamber and the second chamber, the communication hole being located at the upper end of the overflow port, and the side wall of the shell is provided with an air pipe communicating with the first chamber.

8. The test tube cleaner in the automatic rapid COD determination apparatus according to claim 1, wherein: The upper end of the first chamber is provided with a first opening, the upper end of the second chamber is provided with a second opening, and the top surface of the shell is provided with a groove body communicating the first opening and the second opening, the length direction of the groove body being parallel to the connecting line of the first opening and the second opening.

9. The test tube cleaner in the automatic rapid COD determination apparatus according to claim 8, wherein: The width of the groove body is greater than or equal to the outer diameter of the test tube.

10. The test tube cleaner in the automatic rapid method COD determination instrument according to claim 1, characterized in that: The shell is spliced by an upper shell and a lower shell.

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