A sampling device for detecting purity of deuterated methanol

Abstract

The application discloses a kind of deuterated methanol purity detection sampling devices, belong to detection sampling technical field.The upper surface of bottom plate is fixedly connected operation box, the upper surface rear of operation box is fixedly connected support baffle, the upper surface of operation box is fixedly connected purity detection box, the left side of purity detection box is fixedly connected deuterated methanol solution tank, the lower surface of deuterated methanol solution tank is fixedly connected with the upper surface of support baffle, the lower surface of deuterated methanol solution tank and located in the front of support baffle is provided with liquid outlet mechanism, the right side of purity detection box is fixedly connected cleaning tank, the inside upper surface of purity detection box is fixedly connected with purity detector, the lower surface of purity detector is fixedly connected telescopic link one, the lower surface of telescopic link one is fixedly connected with liquid suction device.The application realizes the full isolation liquid taking of deuterated methanol by mechanical cooperation, and after detection, the inside automatic cleaning of detection container is completed using the brush in cleaning tank.

Description

Technical Field

[0001] This invention relates to the field of detection and sampling technology, specifically to a device for detecting and sampling the purity of deuterated methanol. Background Technology

[0002] Deuterated methanol is an important advanced deuteration reagent and intermediate for deuterated drugs. It is widely used in HNMR detection, deuteration labeling in clinical drugs, intermediates for deuterated drugs, and materials such as OLEDs. Because deuterated methanol requires a very high degree of deuteration, generally above 99.8%, and a water content of less than one-thousandth, the purity of deuterated methanol is often unavoidable before use.

[0003] Existing methods for testing the purity of deuterated methanol often involve manually pouring the solution into a container from the container holding the deuterated methanol. This can cause the solution to splash out and injure the operator's skin, or introduce other impurities that could contaminate the remaining deuterated methanol inside the container. Furthermore, existing testing techniques cannot clean the storage container after use, requiring manual cleaning by the operator. Summary of the Invention

[0004] In view of this, the present invention provides a sampling device for detecting the purity of deuterated methanol, which achieves complete isolation of deuterated methanol liquid through mechanical cooperation, and automatically cleans the inside of the detection container by using a brush in the cleaning tank after detection.

[0005] A sampling device for detecting the purity of deuterated methanol includes a base plate, an operating box, a support baffle, a purity detection box, a liquid dispensing mechanism, a cleaning box, a purity detector, a telescopic rod, and a liquid aspirator. An operation box is fixedly connected to the upper surface of the base plate. A support baffle is fixedly connected to the rear of the upper surface of the operation box. A purity detection box is fixedly connected to the upper surface of the operation box. A deuterated methanol solution tank is fixedly connected to the left side of the purity detection box. The lower surface of the deuterated methanol solution tank is fixedly connected to the upper surface of the support baffle. A liquid discharge mechanism is provided on the lower surface of the deuterated methanol solution tank in front of the support baffle. A cleaning box is fixedly connected to the right side of the purity detection box. A purity detector is fixedly connected to the upper surface inside the purity detection box. A telescopic rod is fixedly connected to the lower surface of the purity detector. A liquid aspirator is fixedly connected to the lower surface of the telescopic rod.

[0006] Furthermore, a control handle is provided on the left side of the control box, and a threaded rod is fixedly connected to the right end of the control handle. The right end of the threaded rod extends into the interior of the control box and is rotatably connected to the right side of the interior of the control box via a rotating shaft. A sliding block is threadedly connected to the outer wall of the threaded rod, and the bottom of the sliding block is slidably connected to the lower surface of the interior of the control box. A through-type sliding groove is provided on the upper surface of the control box, and the top end of the sliding block extends through the sliding groove to the top of the control box and is fixedly connected to a placement box. A detection container is provided inside the placement box.

[0007] Furthermore, the liquid dispensing mechanism includes a connecting pipe that is connected to the deuterated methanol solution tank. A protective shell is fixedly connected to the lower surface of the connecting pipe. A control pipe is disposed inside the protective shell and is connected to the connecting pipe. A liquid outlet is integrally formed on the lower surface of the protective shell and is connected to the control pipe. A rotating handle is disposed on the left side of the protective shell, and a rotating rod is fixedly connected to the right side of the rotating handle. The right end of the rotating rod extends into the interior of the control pipe and is rotatably connected to the right side of the interior of the control pipe via a rotating shaft. Two protrusions are fixedly connected to the outer wall of the rotating rod inside the control pipe. A piston plate three is slidably connected inside the control pipe and below the rotating rod. Multiple through-holes are formed on the upper surface of the piston plate three. Multiple insertion posts are integrally formed on the lower surface of the piston plate three. A control plate is rotatably connected to the right side of the insertion post via a rotating shaft. A spring one is fixedly connected to the lower surface of the control plate and the right side of the insertion post. A limiting block is fixedly connected to the left side of the insertion post and below the control plate. A insertion plate is fixedly connected inside the control pipe and below the piston plate three. Multiple insertion pipes are integrally formed on the upper surface of the insertion plate. Multiple torsion springs are fixedly connected to the rotating rod and the upper surface of the piston plate three.

[0008] Furthermore, a support plate is fixedly connected inside the cleaning tank. A water tank is fixedly connected to the upper surface of the support plate. A telescopic rod is rotatably connected to the lower surface of the support plate via a pivot. A cleaning column is fixedly connected to the lower surface of the telescopic rod. Multiple brushes are integrally formed on the outer wall of the cleaning column. A movable pipe is provided inside the cleaning column. The interior of the movable pipe is connected to the water tank via a flexible hose. Multiple water outlet pipes are integrally formed on both sides of the movable pipe. Multiple water outlet holes are integrally formed on both sides of the cleaning column. A squeezing block is fixedly connected to the lower surface of the movable pipe. The inner sidewall of the squeezing block has openings on opposite sides. A through-type sliding vertical groove is provided. The lower surface of the extrusion block extends to the bottom of the cleaning column. A limiting and fixing plate is slidably connected inside the extrusion block. Multiple springs are fixedly connected to the limiting and fixing plate and the lower surface of the extrusion block. The left and right ends of the limiting and fixing plate pass through two sliding vertical grooves and are fixedly connected to the inner sidewall of the cleaning column. A support plate is fixedly connected to the left side of the inside of the cleaning tank. A drive motor is fixedly connected to the upper surface of the support plate. A bevel gear is fixedly connected to the right end of the output shaft of the drive motor. A bevel gear is fixedly connected to the outer sidewall of the telescopic rod. The bevel gear and the bevel gear mesh with each other.

[0009] Furthermore, both the purity testing box and the cleaning box are provided with operating doors on their front surfaces, and both operating doors are provided with pull handles on their front surfaces.

[0010] Furthermore, the front surfaces of both operating doors are provided with transparent glass.

[0011] Furthermore, both the deuterated methanol solution tank and the water tank have integrally formed addition ports on their upper surfaces, and the outer walls of both addition ports are threaded with sealing caps.

[0012] Beneficial effects: 1. Before use, align the outlet with the detection container. Then, rotate the handle to rotate the rotating rod. The rotating rod will drive two cams to rotate inside the control pipe. When the two cams rotate to the bottom, they will push the piston plate three downward, thereby inserting the plug into the plug pipe on the plug plate. The plug pipe will push the control plate upward, allowing deuterated methanol to flow through the plug pipe to the outlet. Once a sufficient amount has flowed, release the handle. The two torsion springs will rebound, causing the rotating rod and handle to reset, thereby causing the piston plate three to rise. The control plate will seal the plug due to the pressure, the spring three, and the limit block, preventing deuterated methanol from leaking when not in use. This achieves complete isolation between the deuterated methanol extraction process and the outside environment, avoiding splashing of deuterated methanol or the introduction of impurities.

[0013] 2. When using this invention, after the deuterated methanol has been tested inside the purity testing chamber, the control handle can be cranked to move the testing container into the cleaning chamber. Then, the drive motor and telescopic rod two are started, and the cleaning column is inserted into the bottom of the testing container and rotated. When the cleaning column is inserted into the bottom of the testing container, the squeezing block two is squeezed and moves the moving pipe upward, thereby aligning the water outlet pipe on the outside of the moving pipe with the water outlet of the cleaning column. When the cleaning column rotates, it will rotate and discharge water into the testing container. The cleaning of the inside of the testing container can be completed by the brush. When the cleaning is completed, the drive motor and telescopic rod two can be turned off. The squeezing block two will be driven to reset by the spring four, thereby moving the water outlet pipe on the outside of the moving pipe away from the water outlet of the cleaning column, preventing water leakage during cleaning operations.

[0014] 3. The detection container of the present invention is placed in the operation box. The injection of deuterated methanol into the detection container through the liquid dispensing mechanism, the purity detection, and the transfer of the detection container are all completed by the actuator. The entire operation eliminates the possibility of solution splashing out and damaging the operator's skin, or being introduced into the operator by other impurities. It can effectively protect the operator's personal safety and has a high degree of safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a sampling device for detecting the purity of deuterated methanol according to the present invention. Figure 2 This is a schematic diagram of the overall front section structure of a sampling device for detecting the purity of deuterated methanol according to the present invention; Figure 3 This is a frontal cross-sectional schematic diagram of the liquid outlet mechanism of a sampling device for detecting the purity of deuterated methanol according to the present invention. Figure 4 This invention relates to a sampling device for detecting the purity of deuterated methanol. Figure 2 Enlarged structural diagram at point A; Figure 5 This invention relates to a sampling device for detecting the purity of deuterated methanol. Figure 2 Enlarged structural diagram at point B; Figure 6 This invention relates to a sampling device for detecting the purity of deuterated methanol. Figure 3 A magnified structural diagram at point C.

[0016] Figure 7 This is a schematic diagram showing the alignment of the water outlet pipe and water outlet hole in a sampling device for detecting the purity of deuterated methanol according to the present invention.

[0017] In the diagram: 1. Base plate; 2. Control box; 3. Support baffle; 4. Purity testing box; 5. Deuterated methanol solution tank; 6. Dispensing mechanism; 7. Cleaning box; 8. Purity detector; 9. Telescopic rod one; 10. Suction device; 11. Anti-slip support leg; 12. Control handle; 13. Threaded rod; 14. Sliding block; 15. Sliding groove; 16. Placement box; 17. Testing container; 18. Support plate one; 19. Water tank; 20. Telescopic rod two; 21. Cleaning column; 22. Brush; 23. Moving pipe; 24. Water outlet pipe; 25. Water outlet hole; 26. Squeezing block; 27. Limiting and fixing plate; 28. Spring two; 29. Support plate two; 30. Drive motor; 31. Bevel gear one; 32. Bevel gear two; 33. Operating door; 34. Pull handle; 35. Transparent glass; 36. Adding port; 37. Sealing cover; 38. Sliding vertical groove; 601. Connecting pipe; 602. Protective shell; 603. Control pipe; 604. Liquid outlet; 605. Rotating handle; 606. Rotating rod; 607. Cam; 608. Piston plate three; 609. Drain hole; 610. Insertion post; 611. Control board; 612. Spring one; 613. Limit block; 614. Insertion plate; 615. Insertion pipe; 616. Torsion spring. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] This invention provides a sampling device for detecting the purity of deuterated methanol, as shown in the attached figure. Figure 1 and 2 As shown, the device includes a base plate 1, an operation box 2 fixedly connected to the upper surface of the base plate 1, a support baffle 3 fixedly connected to the rear of the upper surface of the operation box 2, a purity detection box 4 fixedly connected to the upper surface of the operation box 2 on the right side of the support baffle 3, a deuterated methanol solution tank 5 fixedly connected to the left side of the purity detection box 4, a liquid discharge mechanism 6 provided on the lower surface of the deuterated methanol solution tank 5 in front of the support baffle 3, a cleaning box 7 fixedly connected to the upper surface of the operation box 2 on the right side of the purity detection box 4, a purity detector 8 fixedly connected to the upper surface inside the purity detection box 4, a telescopic rod 9 fixedly connected to the lower surface of the purity detector 8, a liquid aspirator 10 fixedly connected to the lower surface of the telescopic rod 9, and multiple anti-slip support legs 11 fixedly connected to the lower surface of the base plate 1.

[0020] In use, the deuterated methanol in the deuterated methanol solution tank 5 is controlled by the liquid dispensing mechanism 6 to flow into the container, thereby transporting the outflowing deuterated methanol to the purity testing chamber 4 for testing. When the container is transported to the purity testing chamber 4, the telescopic rod 9 can be activated, which will drive the liquid aspirator 10 to suck up the deuterated methanol in the container. Then, the deuterated methanol is transported to the purity detector 8 to test the purity of the deuterated methanol. When the use is finished, the container is transported to the cleaning chamber 7 to clean the container after use.

[0021] In this embodiment, a control handle 12 is provided on the left side of the operation box 2, and a threaded rod 13 is fixedly connected to the right end of the control handle 12. The right end of the threaded rod 13 extends into the interior of the operation box 2 and is rotatably connected to the right side of the interior of the operation box 2 via a rotating shaft. A sliding block 14 is threadedly connected to the outer wall of the threaded rod 13, and the bottom of the sliding block 14 is slidably connected to the lower surface of the interior of the operation box 2. A through sliding groove 15 is provided on the upper surface of the operation box 2, and the top end of the sliding block 14 extends through the sliding groove 15 to the top of the operation box 2 and is fixedly connected to a placement box 16. A detection container 17 is provided inside the placement box 16. In use, the screw rod 13 is rotated by shaking the control handle 12. The rotation of the screw rod 13 causes the outer sliding block 14 to move, thereby transporting the placement box 16 above the sliding block 14 along the sliding groove 15 to the interior of the purity detection box 4 and the cleaning box 7. After the liquid dispensing mechanism 6 pours a certain amount of deuterated methanol into the detection container 17, the detection container 17 is moved to the bottom of the purity detection box 4 for detection by shaking the control handle 12.

[0022] As attached Figure 3 and 4As shown, in this embodiment, the liquid dispensing mechanism 6 includes a connecting pipe 601, which is connected to the deuterated methanol solution tank 5. A protective shell 602 is fixedly connected to the lower surface of the connecting pipe 601. A control pipe 603 is provided inside the protective shell 602, which is connected to the connecting pipe 601. A liquid outlet 604 is integrally formed on the lower surface of the protective shell 602, which is connected to the control pipe 603. A rotating handle 605 is provided on the left side of the protective shell 602, and a rotating rod 606 is fixedly connected to the right side of the rotating handle 605. The right end of the rotating rod 606 extends into the inside of the control pipe 603 and is connected to the right side of the inside of the control pipe 603. Two cams 607 are fixedly connected to the outer wall of the rotating rod 606 and inside the control pipe 603 via a rotating shaft. A piston plate 608 is slidably connected inside the control pipe 603 and below the rotating rod 606. Multiple through-holes 609 are provided on the upper surface of the piston plate 608. Multiple insertion posts 610 are integrally formed on the lower surface of the piston plate 608. A control plate 611 is rotatably connected to the inner right side of each insertion post 610 via a rotating shaft. A spring 612 is fixedly connected to the lower surface of the control plate 611 and the inner right side of the insertion post 610. A limit block 613 is fixedly connected to the inner left side of the insertion post 610 and below the control plate 611. (See attached diagram) Figure 6 As shown. Inside the control pipe 603 and below the piston plate 608, a plug plate 614 is fixedly connected. Multiple plug pipes 615 are integrally formed on the upper surface of the plug plate 614. Multiple torsion springs 616 are fixedly connected to the rotating rod 606 and the upper surface of the piston plate 608.

[0023] In use, before use, align the outlet 604 with the detection container 17. Then, rotate the handle 605 to drive the rotating rod 606 to rotate. The rotating rod 606 will drive the two cams 607 to rotate inside the control pipe 603. When the two cams 607 rotate to the bottom, they will push the piston plate 608 downward, thereby inserting the plug 610 into the plug pipe 615 on the plug plate 614. The plug pipe 615 will push the control plate 611 upward, thereby allowing deuterated methanol to flow through the plug pipe 615 to the outlet 604. When a sufficient amount has flowed, release the handle 605. The two torsion springs 616 will rebound, causing the rotating rod 606 and the handle 605 to return to their original positions, thereby causing the piston plate 608 to rise. The control plate 611 will seal the plug 610 due to the pressure, the spring 612, and the limiting block 613, preventing leakage when not in use.

[0024] As attached Figure 5 and 7As shown, in this embodiment, a support plate 18 is fixedly connected inside the cleaning tank 7. A water tank 19 is fixedly connected to the upper surface of the support plate 18. A telescopic rod 20 is rotatably connected to the lower surface of the support plate 18 via a pivot. A cleaning column 21 is fixedly connected to the lower surface of the telescopic rod 20. Multiple brushes 22 are integrally formed on the outer wall of the cleaning column 21. A moving pipe 23 is provided inside the cleaning column 21. The inside of the moving pipe 23 is connected to the water tank 19 via a flexible hose. Multiple water outlet pipes 24 are integrally formed on both sides of the moving pipe 23. Multiple water outlet holes 25 are integrally formed on both sides of the cleaning column 21. A squeezing block 26 is fixedly connected to the lower surface of the moving pipe 23. The inner sidewall of the squeezing block 26 is opposite to the side... A through-type sliding vertical groove 38 is provided. The lower surface of the extrusion block 26 extends to the bottom of the cleaning column 21. A limiting fixing plate 27 is slidably connected inside the extrusion block 26. Multiple springs 28 are fixedly connected to the limiting fixing plate 27 and the lower surface of the extrusion block 26. The left and right ends of the limiting fixing plate 27 pass through two sliding vertical grooves 38 respectively and are fixedly connected to the inner side wall of the cleaning column 21. A support plate 29 is fixedly connected to the left side of the inside of the cleaning box 7. A drive motor 30 is fixedly connected to the upper surface of the support plate 29. A bevel gear 31 is fixedly connected to the right end of the output shaft of the drive motor 30. A bevel gear 32 is fixedly connected to the outer side wall of the telescopic rod 20. The bevel gear 31 and the bevel gear 32 are meshed together. When using this invention, after the deuterated methanol has been tested inside the purity testing chamber 4, the control handle 12 can be cranked to move the testing container 17 into the cleaning chamber 7. Then, the drive motor 30 and the telescopic rod 20 are started, and the cleaning column 21 is inserted into the inner wall of the testing container 17 and rotated. When the cleaning column 21 is inserted into the bottom of the testing container 17, the squeezing block 26 is squeezed and moves the moving pipe 23 upward, thereby aligning the water outlet pipe 24 on the outside of the moving pipe 23 with the water outlet hole 25 of the cleaning column 21. When the cleaning column 21 rotates, it will rotate and discharge water into the testing container 17. The cleaning of the inside of the testing container 17 can be completed by the brush 22. When the cleaning is completed, the drive motor 30 and the telescopic rod 20 are turned off. The squeezing block 26 will be driven to reset the moving pipe 23 under the rebound of the spring 28, thereby moving the water outlet pipe 24 on the outside of the moving pipe 23 away from the water outlet hole 25 of the cleaning column 21 to prevent water leakage during the cleaning operation.

[0025] In this embodiment, both the purity testing chamber 4 and the cleaning chamber 7 are provided with operating doors 33 on their front surfaces. Both operating doors 33 are provided with pull handles 34 on their front surfaces and transparent glass 35 on their front surfaces. During use, the interior of the purity testing chamber 4 and the cleaning chamber 7 can be operated in a timely manner, and the internal conditions can also be observed through the transparent glass 35.

[0026] In this embodiment, the upper surfaces of the deuterated methanol solution tank 5 and the water tank 19 are integrally formed with an inlet 36. The outer walls of the two inlets 36 are threaded with sealing caps 37. When the solution is used up, it can be replenished through the inlet 36. The sealing caps 37 can effectively protect the internal solution from contamination.

[0027] The working principle of this device is as follows: When using this invention, the control handle 12 is cranked to rotate the threaded rod 13. The rotation of the threaded rod 13 will move the outer sliding block 14, thereby conveying the placement box 16 above the sliding block 14 along the sliding groove 15 to the interior of the purity detection box 4 and the cleaning box 7. After deuterated methanol is poured into the detection container 17 through the liquid dispensing mechanism 6, the detection container 17 moves into the purity detection box 4 by rotating the threaded rod 13. After the deuterated methanol has been detected in the purity detection box 4, the control handle 12 is cranked again to move the detection container 17 into the cleaning box 7. Then, the drive motor 30 and the telescopic rod 20 are started to insert the cleaning column 21 into the detection container 17. When the bottom of the cleaning column 21 is inserted into the bottom of the detection container 17, the squeezing block 26 is squeezed and moves the moving pipe 23 upward, thereby aligning the water outlet 24 on the outside of the moving pipe 23 with the water outlet 25 of the cleaning column 21. When the cleaning column 21 rotates, it will rotate and discharge water into the detection container 17. The cleaning of the inside of the detection container 17 can be completed by the brush 22. When the cleaning is completed, the drive motor 30 and the telescopic rod 20 can be turned off. The squeezing block 26 will drive the moving pipe 23 to reset under the rebound of the spring 28, thereby moving the water outlet 24 on the outside of the moving pipe 23 away from the water outlet 25 of the cleaning column 21 to prevent water leakage during the cleaning operation.

[0028] All electrical components mentioned in this article are real-world electrical components.

[0029] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sampling device for detecting the purity of deuterated methanol, characterized in that, It includes a base plate, control box, support baffle, purity detection box, liquid dispensing mechanism, cleaning box, purity detector, telescopic rod, and liquid aspirator; An operation box is fixedly connected to the upper surface of the base plate. A support baffle is fixedly connected to the rear of the upper surface of the operation box. A purity detection box is fixedly connected to the upper surface of the operation box. A deuterated methanol solution tank is fixedly connected to the left side of the purity detection box. The lower surface of the deuterated methanol solution tank is fixedly connected to the upper surface of the support baffle. A liquid discharge mechanism is provided on the lower surface of the deuterated methanol solution tank in front of the support baffle. A cleaning box is fixedly connected to the right side of the purity detection box. A purity detector is fixedly connected to the upper surface inside the purity detection box. A telescopic rod is fixedly connected to the lower surface of the purity detector. A liquid aspirator is fixedly connected to the lower surface of the telescopic rod.

2. The deuterated methanol purity detection and sampling device as described in claim 1, characterized in that, A control handle is provided on the left side of the control box. A threaded rod is fixedly connected to the right end of the control handle. The right end of the threaded rod extends into the interior of the control box and is rotatably connected to the right side of the interior of the control box via a rotating shaft. A sliding block is threadedly connected to the outer wall of the threaded rod. The bottom of the sliding block is slidably connected to the lower surface of the interior of the control box. A through-type sliding groove is provided on the upper surface of the control box. The top end of the sliding block extends through the sliding groove to the top of the control box and is fixedly connected to a placement box. A detection container is provided inside the placement box.

3. The deuterated methanol purity detection and sampling device as described in claim 2, characterized in that, The liquid dispensing mechanism includes a connecting pipe that is connected to the deuterated methanol solution tank. A protective shell is fixedly connected to the lower surface of the connecting pipe. A control pipe is disposed inside the protective shell and is connected to the connecting pipe. A liquid outlet is integrally formed on the lower surface of the protective shell and is connected to the control pipe. A rotating handle is disposed on the left side of the protective shell, and a rotating rod is fixedly connected to the right side of the rotating handle. The right end of the rotating rod extends into the interior of the control pipe and is rotatably connected to the right side of the interior of the control pipe via a rotating shaft. Two cams are fixedly connected to the outer wall of the rotating rod inside the control pipe. A piston plate three is slidably connected inside the control pipe and below the rotating rod. The upper surface of the piston plate three has multiple through-holes for water seepage. Multiple insertion posts are integrally formed on the lower surface of the piston plate three. A control plate is rotatably connected to the right side of the insertion post via a rotating shaft. A spring one is fixedly connected to the lower surface of the control plate and the right side of the insertion post. A limiting block is fixedly connected to the left side of the insertion post and below the control plate. An insertion plate is fixedly connected inside the control pipe and below the piston plate three. Multiple insertion pipes are integrally formed on the upper surface of the insertion plate. Multiple torsion springs are fixedly connected to the rotating rod and the upper surface of the piston plate three.

4. The deuterated methanol purity detection and sampling device as described in claim 3, characterized in that, A support plate is fixedly connected inside the cleaning tank. A water tank is fixedly connected to the upper surface of the support plate. A telescopic rod is rotatably connected to the lower surface of the support plate via a pivot. A cleaning column is fixedly connected to the lower surface of the telescopic rod. Multiple brushes are integrally formed on the outer wall of the cleaning column. A movable pipe is installed inside the cleaning column. The interior of the movable pipe is connected to the water tank via a flexible hose. Multiple water outlet pipes are integrally formed on both sides of the movable pipe. Multiple water outlet holes are integrally formed on both sides of the cleaning column. A squeezing block is fixedly connected to the lower surface of the movable pipe. A through-hole is formed on the inner side wall of the squeezing block on each side. The sliding vertical groove of the extrusion block extends to the bottom of the cleaning column. A limiting and fixing plate is slidably connected inside the extrusion block. Multiple springs are fixedly connected to the limiting and fixing plate and the inner lower surface of the extrusion block. The left and right ends of the limiting and fixing plate pass through the two sliding vertical grooves respectively and are fixedly connected to the inner sidewall of the cleaning column. A support plate is fixedly connected to the left side of the inside of the cleaning box. A drive motor is fixedly connected to the upper surface of the support plate. A bevel gear is fixedly connected to the right end of the output shaft of the drive motor. A bevel gear is fixedly connected to the outer sidewall of the telescopic rod. The bevel gear and the bevel gear mesh with each other.

5. The deuterated methanol purity detection and sampling device as described in claim 4, characterized in that, Both the purity testing box and the cleaning box are equipped with operating doors on their front surfaces, and both operating doors are equipped with pull handles on their front surfaces.

6. The deuterated methanol purity detection and sampling device as described in claim 4 or 5, characterized in that, The upper surfaces of both the deuterated methanol solution tank and the water tank are integrally formed with addition ports, and the outer walls of both addition ports are threaded with sealing caps.

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