Trace quantitative sampling and storing device for pharmaceutical analysis

Abstract

The invention relates to a trace quantitative sampling and storing device for drug analysis, which relates to the technical field of sampling and storing, and comprises a sampling barrel for extracting a drug, a storage tank for storing the drug, and a conveying mechanism for conveying the drug in the sampling barrel into the storage tank for storage, the storage tank is used for placing the storage tank; the stabilizing mechanism is arranged in the storage tank and is used for preventing the storage tank from shaking so as to prolong the medicine storage time; the stabilizing mechanism comprises an outer stabilizing frame rotationally installed on the storage box, an inner stabilizing frame rotationally installed on the outer stabilizing frame, a fixing assembly arranged on the inner stabilizing frame and used for fixing the storage tank and a balance weight structure connected to the inner stabilizing frame and used for lowering the gravity center of the inner stabilizing frame, and the balance weight structure is provided with an inserting groove allowing the storage tank to be in inserting fit. The rotating axis of the outer stabilizing frame is orthogonal to the rotating axis of the inner stabilizing frame. The storage tank is effectively prevented from shaking when the storage tank is used for storing medicine in a standing manner.

Description

Technical Field

[0001] This invention relates to the field of sampling and storage technology, and in particular to a micro-quantitative sampling and storage device for drug analysis. Background Technology

[0002] The micro-quantitative sampling and storage device for pharmaceutical analysis is specifically designed for the field of pharmaceutical analysis. It aims to achieve micro-quantitative sampling and preservation of pharmaceutical solutions, ensuring the accuracy of sampling and the safety of preservation.

[0003] In existing related technologies, micro-quantitative sampling and storage devices for drug analysis typically consist of a sampling tube and a storage tank. The sampling tube is responsible for extracting the drug and then transferring the extracted drug into the storage tank, where the drug is stored statically.

[0004] In the above structure, when the storage tank is in a static storage state, it is easily subject to accidental human impact, which may cause the storage tank to shake, thereby disrupting the stable storage environment of the drug and ultimately shortening the effective storage period of the drug. Summary of the Invention

[0005] To prevent shaking of the storage tank when storing drugs in a static state, the present invention provides a micro-quantitative sampling and storage device for drug analysis.

[0006] The present invention provides a micro-quantitative sampling and storage device for drug analysis, which adopts the following technical solution: A micro-quantitative sampling and storage device for drug analysis includes a sampling tube for extracting drugs, a storage tank for storing drugs, and a conveying mechanism for conveying the drugs in the sampling tube into the storage tank for storage. It also includes a storage box for placing the storage tank and a stabilizing mechanism disposed in the storage box for preventing the storage tank from shaking and thus prolonging the drug storage time. The stabilizing mechanism includes an outer stabilizing frame rotatably mounted on the storage tank, an inner stabilizing frame rotatably mounted on the outer stabilizing frame, a fixing component disposed on the inner stabilizing frame for fixing the storage tank, and a counterweight structure connected to the inner stabilizing frame for lowering the center of gravity of the inner stabilizing frame. The counterweight structure has a plug-in slot for the storage tank to be plugged in and fitted. The rotation axis of the outer stabilizer is orthogonal to the rotation axis of the inner stabilizer.

[0007] By adopting the above technical solution, the sampling tube is responsible for extracting a small amount of drug, and then the drug in the sampling tube is transferred to the storage tank through the conveying mechanism to complete the connection between sampling and storage. The storage tank is placed in the storage box. The rotation axes of the outer stabilizer and the inner stabilizer are orthogonal, so when the storage box is subjected to external vibration or tilting, the two can rotate adaptively along different axes to counteract the swaying in multiple directions such as horizontal and vertical, and keep the inner stabilizer in a relatively horizontal state. At the same time, the counterweight structure lowers the overall center of gravity, reduces the swaying amplitude of the inner stabilizer, and further improves stability. Meanwhile, the insertion slot of the counterweight structure can be directly inserted into the storage tank to achieve the initial positioning of the storage tank. Then, the fixing components on the inner stabilizer will firmly fix the storage tank to prevent relative displacement of the storage tank in the insertion slot and prevent the storage tank from shaking, thereby extending the drug storage time.

[0008] Optionally, the fixing assembly includes a fixing block that is slidably mounted on the inner stabilizer and clamped from both sides of the storage tank, a first threaded rod symmetrically arranged on the inner stabilizer and used to drive the fixing block to move, and a synchronization structure that drives the two first threaded rods to rotate synchronously; one of the first threaded rods has a handle wheel at its end for easy manual rotation.

[0009] By adopting the above technical solution, the first threaded rod connected to it is driven to rotate by turning the handle wheel. Then, the other first threaded rod is driven to rotate synchronously by the synchronous structure, ensuring that the two first threaded rods have the same speed and direction. The first threaded rod drives the fixed block connected to it to move. The fixed block moves to the middle and applies clamping force from both sides of the storage tank until the storage tank is firmly fixed in the insertion slot.

[0010] Optionally, a pull-out structure for removing the storage tank from the storage tank is provided between the storage tank and the stabilizing mechanism. The pull-out structure includes a pull-out frame slidably installed in the storage tank, sliding rollers fixedly installed on both sides of the pull-out frame, and sliding grooves formed on both sides of the inner wall of the storage tank for the sliding rollers to slide. The external stabilizer is rotatably mounted inside the pull-out frame and can move synchronously with the pull-out frame.

[0011] By adopting the above technical solution, the pull-out frame is manually pulled, causing the sliding rollers on both sides of the pull-out frame to roll along the sliding groove, thus restricting the movement of the pull-out frame to a fixed trajectory. At the same time, since the outer stabilizer is rotatably installed inside the pull-out frame, the movement of the pull-out frame will drive the outer stabilizer, the inner stabilizer, and the fixed storage tank to move synchronously. When the pull-out frame is pulled outward, the storage tank is moved out of the storage box along with it, making it convenient to replace the storage tank.

[0012] Optionally, a refrigeration assembly is installed on the bottom surface of the storage box; the refrigeration assembly includes a refrigeration unit and a refrigeration pipe connected to the refrigeration unit for releasing cold air; The counterweight structure includes a counterweight box, with an air inlet through the top of the counterweight box. A cooling fan is installed inside the counterweight box to deliver cold air upwards to the storage tank for continuous cooling and preservation. The pull-out bracket is located above the refrigeration component, and a vent hole is provided at the bottom of the pull-out bracket to allow cold air to pass through.

[0013] By adopting the above technical solution, after the refrigeration unit is started, the refrigerant is compressed and delivered to the refrigeration pipe. The refrigeration pipe releases cold air, creating a low-temperature environment in the bottom area of ​​the storage tank. Then, by starting the cooling fan in the counterweight box, the cold air released by the refrigeration pipe is drawn upward, so that the cold air always acts directly on the storage tank placed in the insertion slot of the counterweight box through the vent and air supply holes, achieving low-temperature preservation throughout the process.

[0014] Optionally, a protective box is installed on the top of the storage tank, a sealing cover for sealing is movably installed at the inlet of the storage tank, and the conveying mechanism is disposed inside the protective box; The conveying mechanism includes an extraction component disposed within the protective box for extracting the drug into the sampling cylinder, a lifting and conveying component disposed within the protective box for transferring the drug in the sampling cylinder into the storage tank, and a moving component for moving the sealing cap to open the storage tank.

[0015] By adopting the above technical solution, the drug is extracted into the sampling cylinder by activating the extraction component in the protective box, and then the drug in the sampling cylinder is moved into the storage tank by activating the lifting and conveying component. When the lifting and conveying component is working, the moving component is driven to work simultaneously to fully open the inlet of the storage tank, so as to avoid obstructing the conveying when the lifting and conveying component moves the drug in the sampling cylinder into the storage tank.

[0016] Optionally, the sampling cylinder has an extraction chamber for preliminary placement of the drug after extraction. One end of the extraction chamber is provided with a drug inlet and a drug outlet. The drug inlet has a one-way valve structure for allowing the drug to enter the extraction chamber from the outside in one direction, and the drug outlet has a control valve structure for allowing the drug to flow out of the extraction chamber. The extraction assembly includes an extraction disc slidably installed in the extraction cavity, a second threaded cylinder connected to the extraction disc, a second threaded rod threadedly connected to the second threaded cylinder, and a drive motor for driving the second threaded rod to rotate; the second threaded cylinder has a limiting structure that restricts its circumferential rotation.

[0017] By adopting the above technical solution, the drive motor is started to drive the second threaded rod to rotate. Since the second threaded cylinder is threadedly connected to the second threaded rod and cannot rotate circumferentially due to the restriction structure, the rotational motion of the threaded rod is converted into the axial linear sliding of the second threaded cylinder, which in turn drives the extraction disc to slide synchronously in the extraction cavity. When the extraction disc slides away from the drug inlet hole, the volume inside the extraction cavity increases and a negative pressure is formed. At this time, the one-way valve structure opens and the control valve structure closes. The drug enters the extraction cavity unidirectionally through the drug inlet hole, completing the drug extraction. When material delivery is required, the drive motor rotates in the opposite direction, driving the extraction disc to slide closer to the drug outlet hole. The volume of the extraction cavity decreases and the internal pressure increases. The one-way valve structure closes and the control valve structure opens, and the drug in the extraction cavity is discharged through the drug outlet hole.

[0018] Optionally, a support plate for mounting the sampling cylinder is installed in the protective box, and a conveying pipe is installed through the support plate. The upper end of the conveying pipe is connected to the drug outlet of the sampling cylinder. The lifting and conveying assembly includes a rotating shaft rotatably mounted on the protective box, a dual-axis motor for driving the rotating shaft to rotate, a drive gear fixedly connected to the rotating shaft, and a drive rack fixedly connected to the top of the support plate and meshing with the drive gear. When the support plate rises and falls, it drives the sampling cylinder to have a drug-taking state and a drug-delivery state. In the drug-taking state, the lower end of the delivery tube is separated from the storage tank, and the extraction component drives the sampling cylinder to extract the drug. In the drug-delivery state, the lower end of the delivery tube is inserted into the storage tank, and the extraction component drives the drug inside the sampling cylinder to be transferred to the storage tank.

[0019] By adopting the above technical solution, the dual-axis motor drives the rotating shaft to rotate, which in turn drives the drive gear fixed on the rotating shaft to rotate synchronously. At the same time, since the drive gear meshes with the drive rack fixed on the top of the support plate, the rotational motion of the drive gear is converted into the linear lifting motion of the drive rack, thereby driving the support plate and the sampling cylinder and conveying pipe installed on it to lift synchronously.

[0020] When in the drug extraction state, the dual-axis motor rotates in the forward direction, and the drive gear drives the drive rack to move upward. At this time, the lower end of the conveying pipe is completely separated from the storage tank, and the extraction component starts to work, extracting the drug through the drug inlet of the sampling cylinder and temporarily storing the drug in the extraction chamber.

[0021] When in the drug delivery state, the dual-axis motor rotates in reverse, and the drive gear drives the drive rack to move downward. At this time, the lower end of the delivery tube is precisely inserted into the inlet of the storage tank, the extraction component starts to work in reverse, and the control valve structure is opened at the same time. The drug flows directly into the storage tank through the delivery tube, completing the leak-free transfer.

[0022] Optionally, a first cylindrical magnet is installed on the support plate, and a second cylindrical magnet is installed on the inner stabilizer. The first cylindrical magnet and the second cylindrical magnet are attracted to each other by opposite poles, so as to keep the storage tank stable when the feed pipe is inserted into the storage tank.

[0023] By adopting the above technical solution, when the support plate descends into the drug delivery state, the first cylindrical magnet installed on the support plate moves closer to the second cylindrical magnet on the inner stabilizer in sync with the support plate. Since the two are opposite magnetic poles, they generate a stable attraction force when they approach each other. The attraction force will pull the inner stabilizer to finely adjust its position, so that the inlet of the storage tank is accurately aligned with the lower end of the delivery tube, ensuring that the delivery tube is smoothly inserted.

[0024] Optionally, the moving component includes a third threaded rod rotatably mounted on the storage tank, a third threaded cylinder threadedly connected to the third threaded rod, and a limiting guide structure connected to the third threaded cylinder to restrict the rotation of the third threaded cylinder; the sealing cover is fixedly connected to the third threaded cylinder and can move synchronously with the third threaded cylinder; a linkage component is connected between the third threaded rod and the rotating shaft to synchronously drive the sealing cover to open the inlet of the storage tank when the lifting and conveying component is running.

[0025] By adopting the above technical solution, when the dual-axis motor of the lifting and conveying assembly drives the rotating shaft to rotate, the linkage assembly synchronously transmits the power of the rotating shaft to the third threaded rod, so that the third threaded rod rotates synchronously with the rotating shaft. The third threaded cylinder is threadedly connected to the third threaded rod and cannot rotate circumferentially due to the limitation of the positioning guide structure. Therefore, the rotational motion of the third threaded rod is converted into the axial linear movement of the third threaded cylinder, driving the third threaded cylinder to move away from the inlet of the storage tank. The sealing cover opens accordingly, making room for the insertion of the conveying pipe, and realizing the synchronous action of the support plate descending, the conveying pipe approaching, and the sealing cover opening.

[0026] Optionally, the linkage assembly includes a first worm gear structure mounted on the rotating shaft and a second worm gear structure mounted on the third threaded rod, with a linkage rod connecting the first worm gear structure and the second worm gear structure.

[0027] By adopting the above technical solution, when the dual-axis motor of the lifting and conveying component drives the rotating shaft to rotate, the rotating shaft drives the first worm gear structure on it to work. The first worm gear structure drives the linkage rod to rotate. When the linkage rod rotates, it drives the second worm gear structure to work. The second worm gear structure drives the third threaded rod to rotate, thereby realizing the synchronous linkage between the lifting and conveying component and the moving component.

[0028] In summary, the present invention has at least one of the following beneficial technical effects: 1. The storage tank is placed in the storage box. The rotation axes of the outer and inner stabilizers are orthogonal, so when the storage box is subjected to external vibration or tilting, the two can rotate adaptively along different axes to counteract the swaying in multiple directions such as horizontal and vertical, keeping the inner stabilizer in a relatively horizontal state. At the same time, the counterweight structure lowers the overall center of gravity, reduces the swaying amplitude of the inner stabilizer, further improves stability, and prevents the storage tank from shaking, thereby extending the drug storage time. 2. By releasing cold air through the cooperation of the refrigeration unit and the refrigeration pipe, a low-temperature environment is formed in the bottom area of ​​the storage box. Then, by starting the cooling fan in the counterweight box, the cold air released by the refrigeration pipe is drawn upward, so that the cold air always acts directly on the storage tank placed in the insertion slot of the counterweight box through the vent and air supply holes, thus achieving low-temperature preservation throughout the process. 3. When the dual-axis motor of the lifting and conveying assembly drives the rotating shaft to rotate, the linkage assembly synchronously transmits the power of the rotating shaft to the third threaded rod, so that the third threaded rod rotates synchronously with the rotating shaft. The third threaded cylinder is threadedly connected to the third threaded rod and cannot rotate circumferentially due to the limitation of the limiting guide structure. Therefore, the rotational motion of the third threaded rod is converted into the axial linear movement of the third threaded cylinder, driving the third threaded cylinder to move away from the inlet of the storage tank. The sealing cover opens accordingly, making room for the insertion of the conveying pipe, and realizing the synchronous action of the support plate descending, the conveying pipe approaching, and the sealing cover opening. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a micro-quantitative sampling and storage device for drug analysis. Figure 2 This is an overall cross-sectional view of a micro-quantitative sampling and storage device for drug analysis. Figure 3 This is an exploded view of the pull-out structure; Figure 4 This is a schematic diagram of the stabilizing mechanism; Figure 5 This is a structural diagram of the fixed component; Figure 6 This is a schematic diagram of the structure between the support plate and the inner stabilizer when the drug delivery system is in operation. Figure 7 This is an exploded view of the extracted components; Figure 8 This is a structural schematic diagram of the lifting and conveying assembly; Figure 9 This is a structural diagram of the moving components and the linkage components.

[0030] The parts referred to by the numbers in the attached diagrams are as follows: 1. Sampling cylinder; 11. Extraction chamber; 12. Inlet port; 13. Outlet port; 14. Extraction pipe; 141. One-way valve structure; 15. Conveying pipe; 151. Control valve structure; 2. Storage tank; 21. Sealing cover; 3. Storage box; 31. Control panel; 32. Pull-out structure; 321. Pull-out frame; 322. Sliding roller; 323. Sliding groove; 324. Lifting groove; 325. Exit groove; 326. Vent hole; 33. Protective box; 34. Support plate; 341. Upper plate; 342. Lower plate. 343. Plate; 344. Support column; 345. Support base; 346. Arc-shaped plate; 347. First cylindrical magnet; 348. Second cylindrical magnet; 4. Stabilizing mechanism; 41. Outer stabilizer; 42. Inner stabilizer; 43. Fixing assembly; 431. Fixing block; 432. First threaded rod; 433. Handwheel; 434. Synchronization structure; 4341. Synchronization pulley; 4342. Synchronization belt; 435. Rectangular plate; 436. Guide plate; 437. Sliding bar; 438. Sliding groove; 44. Counterweight structure; 441. Counterweight box; 442. Connecting rod; 44 3. Suction fan; 444. Insertion slot; 445. Air outlet; 45. First rotating column; 46. Second rotating column; 5. Refrigeration assembly; 51. Refrigeration unit; 52. Refrigeration pipe; 6. Conveying mechanism; 61. Extraction assembly; 611. Extraction plate; 612. Second threaded cylinder; 613. Second threaded rod; 614. Drive motor; 615. Limiting structure; 6151. Drive plate; 6152. T-shaped slide plate; 6153. T-shaped chute; 62. Lifting and conveying assembly; 621. Rotating shaft; 622. Dual-axis motor; 623. Drive gear; 624. 625. Drive rack; 626. Waist-shaped hole; 627. Fixed base; 628. T-shaped moving plate; 629. T-shaped moving groove; 63. Moving assembly; 630. Third threaded rod; 631. Third threaded cylinder; 632. Limiting guide structure; 6331. Connecting block; 6332. Telescopic guide post; 634. Rectangular block; 64. Linkage assembly; 641. First worm gear structure; 6411. First worm segment; 6412. First worm wheel; 642. Second worm gear structure; 6421. Second worm segment; 6422. Second worm wheel; 643. Linkage rod. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0032] This invention discloses a micro-quantitative sampling and storage device for drug analysis.

[0033] Reference Figure 1 and Figure 2A micro-quantitative sampling and storage device for drug analysis includes a sampling cylinder 1, a storage tank 2, a storage box 3, a conveying mechanism 6, and a stabilizing mechanism 4. The sampling cylinder 1 has an extraction chamber 11 for initial placement of extracted drugs. One end of the extraction chamber 11 has a drug inlet 12 and a drug outlet 13. The drug inlet 12 of the sampling cylinder 1 is connected to a suction pipe 14 for extracting drugs into the sampling cylinder 1. A one-way valve structure 141 is installed in the suction pipe 14 to prevent drug backflow. The drug outlet 13 of the sampling cylinder 1 is connected to a conveying pipe 15 for conveying drugs to the storage tank 2 for storage. A control valve structure 151 is installed on the conveying pipe 15. When drug delivery is required, the control valve structure 151 is opened to allow the drug to pass through the conveying pipe 15. The storage tank 2 is located inside the storage box 3 for convenient storage. A control panel 31 is installed on the storage box 3 to control the operation of the conveying mechanism 6.

[0034] In this embodiment, both the one-way valve structure 141 and the control valve structure 151 are conventional prior art, and will not be described in detail here.

[0035] The conveying mechanism 6 is used to transport the drug extracted from the sampling cylinder 1 to the storage tank 2 for storage. The stabilizing mechanism 4 is used to prevent the storage tank 2 from shaking due to human touch or other factors when it is stationary, thereby extending the drug storage time.

[0036] Reference Figure 2 and Figure 3 The storage box 3 is equipped with a pull-out structure 32 for removing the storage tank 2 from the storage box 3. The pull-out structure 32 includes a pull-out frame 321, a sliding roller 322, a sliding groove 323, a lifting groove 324, and an exit groove 325. The sliding groove 323, the lifting groove 324, and the exit groove 325 are symmetrically opened on the inner walls of both sides of the storage box 3. The sliding roller 322 is fixedly installed on both sides of the pull-out frame 321, and the other end of the sliding roller 322 is movably installed in the sliding groove 323. The lifting groove 324 is vertically opened. One end of the sliding groove 323 is connected to the lifting groove 324, and the end of the lifting groove 324 away from the sliding groove 323 is connected to the exit groove 325. The exit groove 325 penetrates through the storage box 3.

[0037] When it is necessary to remove storage tank 2 from storage box 3, the pull-out frame 321 is pulled outward, and the sliding rollers 322 on both sides of the pull-out frame 321 move horizontally along the corresponding sliding grooves 323. At this time, the horizontal trajectory of the sliding grooves 323 ensures that the pull-out frame 321 moves smoothly outward with storage tank 2, gradually separating it from storage box 3. When the sliding rollers 322 move to the end of the sliding grooves 323, the pull-out frame 321 is lifted upward, so that the sliding rollers 322 enter the lifting grooves 324. When the sliding rollers 322 move to the end of the lifting grooves 324, the pull-out frame 321 is pulled horizontally again, so that the sliding rollers 322 enter the exit grooves 325. Since the exit grooves 325 penetrate storage box 3, the sliding rollers 322 can be separated from storage box 3 along the exit grooves 325. Finally, storage tank 2 is smoothly removed with the pull-out frame 321.

[0038] Reference Figure 2 and Figure 4 The stabilizing mechanism 4 is located inside the pull-out frame 321. The stabilizing mechanism 4 includes an outer stabilizing frame 41, an inner stabilizing frame 42, a fixing component 43, and a counterweight structure 44. The counterweight structure 44 includes a counterweight box 441 and connecting rods 442 around it.

[0039] A first rotating column 45 is fixedly installed on the outer side of the outer stabilizer 41. The first rotating column 45 is rotatably installed on both inner sides of the pull-out bracket 321, allowing the outer stabilizer 41 to rotate about the first rotating column 45 as its axis of rotation. A second rotating column 46 is fixedly installed on the outer side of the inner stabilizer 42. The second rotating column 46 is rotatably connected to the inner side of the outer stabilizer 41, allowing the inner stabilizer 42 to rotate about the second rotating column 46 as its axis of rotation. In this embodiment, the axis of rotation of the outer stabilizer 41 is orthogonal to the axis of rotation of the inner stabilizer 42.

[0040] The counterweight box 441 has a downward-facing recessed top with a insertion slot 444, into which the storage tank 2 is inserted. The connecting rod 442 securely connects the counterweight box 441 and the inner stabilizer 42.

[0041] When the storage box 3 tilts or shakes due to human touch, the first rotating columns 45 on both sides of the pull-out frame 321 connect the outer stabilizing frame 41 to the pull-out frame 321, allowing the outer stabilizing frame 41 to rotate freely around the axis of the first rotating column 45. The second rotating column 46 on the inner side of the outer stabilizing frame 41 connects to the inner stabilizing frame 42, allowing the inner stabilizing frame 42 to rotate freely around the axis of the second rotating column 46. Therefore, the inner stabilizing frame 42 can rotate around the axes of the first rotating column 45 and the second rotating column 46. At the same time, under the action of the counterweight box 441 and the connecting rod 442, it automatically adjusts its posture to always maintain a horizontal state, preventing the storage tank 2 from tilting synchronously with the storage box 3, reducing the shaking of the internal drugs and extending the drug storage time.

[0042] Reference Figure 2 and Figure 5The fixing component 43 is disposed on the top of the inner stabilizer 42 to fix the storage tank 2.

[0043] The fixing component 43 includes a fixing block 431, a first threaded rod 432, a handle wheel 433, and a synchronization structure 434.

[0044] Two first threaded rods 432 and two fixing blocks 431 are symmetrically arranged on both sides of the storage tank 2. A rectangular plate 435 is fixedly installed on the top of the inner stabilizer 42. The two first threaded rods 432 are rotatably installed on the corresponding rectangular plates 435. Two external threads with opposite directions are provided on the outer side of the two first threaded rods 432. A guide plate 436 is fixedly installed on the rectangular plate 435. The fixing blocks 431 are slidably installed on the guide plate 436. The fixing blocks 431 allow the two first threaded rods 432 to pass through simultaneously and are threadedly connected to drive the two fixing blocks 431 closer together to clamp and fix the storage tank 2.

[0045] A sliding bar 437 is fixedly installed at the bottom of the fixed block 431, and a sliding groove 438 is provided on the inner stabilizer 42 for the sliding bar 437 to slide and be installed.

[0046] The synchronization structure 434 includes two synchronization pulleys 4341 and a synchronization belt 4342. The two synchronization pulleys 4341 are respectively fixedly installed on the outside of the two corresponding first threaded rods 432, and the synchronization belt 4342 is sleeved on the outside of the two synchronization pulleys 4341 to drive the two first threaded rods 432 to rotate synchronously. A handle wheel 433 is installed at the end of one of the first threaded rods 432 so that the first threaded rod 432 can be manually driven to rotate.

[0047] During operation, the storage tank 2 is first inserted into the slot 444 of the counterweight box 441 for initial positioning. Then, the handle wheel 433 is manually turned to drive one of the connected first threaded rods 432 to rotate. Through the meshing transmission of the synchronous pulley 4341 and the synchronous belt 4342, the other first threaded rod 432 is driven to rotate synchronously. When the two first threaded rods 432 rotate synchronously, the two fixed blocks 431 connected to them can move towards the center synchronously along the guide plate 436. At the same time, the sliding strip 437 at the bottom of the fixed block 431 slides along the sliding groove 438 on the inner stabilizer 42, further restricting the movement direction of the fixed block 431 and ensuring its smooth movement. Finally, the storage tank 2 is clamped and fixed from both sides.

[0048] Reference Figure 2 A refrigeration assembly 5 is installed on the bottom surface of the storage box 3. The refrigeration assembly 5 includes a refrigeration unit 51 and a refrigeration pipe 52 connected to the refrigeration unit 51 and used to release cold air.

[0049] The pull-out shelf 321 is located above the refrigeration component 5, and a vent 326 is provided through the bottom of the pull-out shelf 321 for the passage of cold air. The top of the counterweight box 441 is provided with an air supply hole 445, and a cooling fan 443 is installed in the inner cavity of the counterweight box 441 to deliver cold air upward to the storage tank 2 for continuous cooling, so that the storage tank 2 is always kept at a low temperature.

[0050] During operation, the refrigeration unit 51 is first activated, and the low-temperature cooling water generated by the refrigeration unit 51 releases cold air through the refrigeration pipe 52, creating a low-temperature environment in the bottom area of ​​the storage tank 3. At the same time, the suction fan 443 is activated to generate upward suction, drawing cold air into the counterweight box 441 through the vent 326 at the bottom of the pull-out bracket 321. The cold air is then directly transported upward through the air outlet 445 at the top of the counterweight box 441. The cold air acts on the bottom and side walls of the storage tank 2, keeping the storage tank 2 at a low temperature to meet the requirements for low-temperature drug storage.

[0051] Reference Figure 2 A protective box 33 is fixedly installed on the top of the storage tank 3, and the conveying mechanism 6 is disposed inside the protective box 33. A sealing cover 21 for sealing is movably installed at the inlet of the storage tank 2. The conveying mechanism 6 includes an extraction component 61, a lifting and conveying component 62, and a moving component 63.

[0052] The extraction assembly 61 is used to extract and discharge the drug. The lifting and conveying assembly 62 is used to transport the drug in the sampling cylinder 1 to the storage tank 2 for storage. The moving assembly 63 is used to simultaneously open the sealing cover 21 when the lifting and conveying assembly 62 is conveying the drug to avoid obstructing the drug delivery.

[0053] Reference Figure 2 , Figure 6 and Figure 7 The protective box 33 is equipped with a support plate 34 for mounting the sampling cylinder 1. The support plate 34 includes an upper plate 341, a lower plate 342, and a support column 343 connecting the upper plate 341 and the lower plate 342. The material conveying pipe 15 is installed through the lower plate 342.

[0054] The extraction assembly 61 includes an extraction disc 611, a second threaded cylinder 612, a second threaded rod 613, a drive motor 614, and a limiting structure 615. The limiting structure 615 includes a drive plate 6151, a T-shaped slide plate 6152, and a T-shaped groove 6153.

[0055] The extraction disc 611 is slidably installed inside the extraction cavity 11. The second threaded cylinder 612 passes through the sampling cylinder 1 and its end is fixedly connected to the extraction disc 611. A support base 344 is fixedly installed on the lower plate 342, and the support base 344 is fixedly installed with the sampling cylinder 1 to support the sampling cylinder 1. An arc-shaped plate 345 is fixedly installed on the lower plate 342, and a drive motor 614 is fixedly installed on the arc-shaped plate 345. The output end of the drive motor 614 is fixedly connected to the end of the second threaded rod 613, and the second threaded cylinder 612 is threadedly connected to the second threaded rod 613 to drive the extraction disc 611 to move.

[0056] The drive plate 6151 is fixedly installed on the outside of the second threaded cylinder 612, the T-shaped slide plate 6152 is fixedly installed on the bottom of the drive plate 6151, the T-shaped slide groove 6153 is opened on the top of the lower plate 342, and the T-shaped slide plate 6152 is slidably installed in the T-shaped slide groove 6153 to restrict the movement of the second threaded cylinder 612 so that the second threaded cylinder 612 can only move horizontally.

[0057] When it is necessary to extract the drug, the drive motor 614 is first started to rotate forward. The drive motor 614 drives the second threaded rod 613 to rotate, which drives the second threaded cylinder 612, which is threaded to the second threaded rod 613, to move outward along the axis of the second threaded rod 613. This causes the extraction plate 611 to slide outward synchronously. At this time, a negative pressure is formed inside the sampling cylinder 1, and the drug is extracted through the extraction tube 14, which is connected to the drug inlet hole 12 of the sampling cylinder 1.

[0058] When it is necessary to discharge the drug, the control valve structure 151 is opened and the drive motor 614 is reversed, causing the second threaded cylinder 612 to move into the sampling cylinder 1, pushing the extraction plate 611 to compress the internal space, and discharging the drug through the conveying pipe 15 connected to the drug outlet 13 of the sampling cylinder 1, thus achieving precise discharge.

[0059] Reference Figure 2 and Figure 8 The lifting and conveying assembly 62 includes a rotating shaft 621, a dual-axis motor 622, a drive gear 623, and a drive rack 624 that meshes with the drive gear 623.

[0060] A waist-shaped hole 625 is provided on one side of the protective box 33, and the material extraction pipe 14 is slidably installed in the waist-shaped hole 625. A fixing seat 626 is fixedly installed on the inner wall of the top of the protective box 33, and a dual-axis motor 622 is fixedly installed on the fixing seat 626. A rotating shaft 621 is fixedly connected to the output end of the dual-axis motor 622, a drive gear 623 is fixedly installed on the rotating shaft 621, and the bottom of the drive rack 624 is fixedly installed on the upper plate 341, with the drive rack 624 meshing with the drive gear 623.

[0061] A T-shaped movable plate 627 is fixedly installed on the drive rack 624, and a T-shaped movable groove 628 is provided on the side wall of the protective box 33. The T-shaped movable plate 627 is slidably installed in the T-shaped movable groove 628 to restrict the movement of the drive rack 624 to only lifting and lowering.

[0062] Reference Figure 6 A first cylindrical magnet 346 is fixedly installed on the lower plate 342, and a second cylindrical magnet 347 is installed on the inner stabilizer 42. The first cylindrical magnet 346 and the second cylindrical magnet 347 attract each other due to their opposite polarities, so as to keep the storage tank 2 stable when the conveying pipe 15 is inserted into the storage tank 2.

[0063] When the support plate 34 is raised or lowered, it drives the sampling cylinder 1 to have both drug collection and drug delivery states.

[0064] When in the drug dispensing state, the dual-axis motor 622 rotates in the forward direction, driving the rack 624 to lift the support plate 34, so that the lower end of the conveying pipe 15 is completely separated from the storage tank 2. At this time, the extraction pipe 14 extends out through the waist-shaped hole 625 of the protective box 33, contacts the drug to be sampled, and then the extraction component 61 is activated to drive the extraction disk 611 to complete the quantitative extraction of the drug, preparing for drug delivery.

[0065] When in drug delivery mode, the dual-axis motor 622 rotates in reverse, driving the rack 624 to lower the support plate 34. The lower end of the delivery pipe 15 is precisely inserted into the storage tank 2. Then, the extraction component 61 works in reverse, pushing the drug in the sampling cylinder 1 into the storage tank 2 through the delivery pipe 15, thus completing the drug transfer.

[0066] When the support plate 34 descends during drug delivery, the first cylindrical magnet 346 on the lower plate 342 and the second cylindrical magnet 347 on the inner stabilizer 42 gradually approach each other. Since the two magnets are opposite poles, they will generate a stable adsorption force, which will firmly attract the inner stabilizer 42 and the lower plate 342, thereby stabilizing the relative position of the delivery pipe 15 and the storage tank 2, and further improving the accuracy and reliability of micro-drug delivery.

[0067] Reference Figure 2 and Figure 9 The moving component 63 includes a third threaded rod 631, a third threaded cylinder 632, and a limiting guide structure 633. The limiting guide structure 633 includes a connecting block 6331 and a telescopic guide post 6332.

[0068] The third threaded rod 631 is rotatably mounted inside the storage tank 3. The third threaded cylinder 632 is threadedly connected to the third threaded rod 631. The connecting block 6331 is fixedly mounted on the outside of the third threaded cylinder 632. The telescopic guide post 6332 is connected between the connecting block 6331 and the side wall of the storage tank 3 to restrict the movement of the third threaded cylinder 632, allowing it to move only horizontally. A rectangular block 634 is fixedly mounted on the end of the third threaded cylinder 632, and the rectangular block 634 is fixedly mounted on the sealing cover 21.

[0069] A linkage assembly 64 is connected between the third threaded rod 631 and the rotating shaft 621 to synchronously drive the sealing cover 21 to open the inlet of the storage tank 2 during the operation of the lifting and conveying assembly 62. The linkage assembly 64 includes a first worm gear structure 641, a second worm gear structure 642, and a linkage rod 643. The first worm gear structure 641 includes a first worm segment 6411 and a first worm wheel 6412 meshing with the first worm segment 6411. The second worm gear structure 642 includes a second worm segment 6421 and a second worm wheel 6422 meshing with the second worm segment 6421.

[0070] Reference Figure 2 and Figure 9 The linkage rod 643 is rotatably mounted on the protective box 33. The first worm gear segment 6411 is fixedly mounted on the rotating shaft 621, and the first worm wheel 6412 is fixedly mounted on the linkage rod 643. The second worm gear segment 6421 is fixedly mounted on the linkage rod 643, and the second worm wheel 6422 is fixedly mounted on the third threaded rod 631, so as to synchronously drive the third threaded rod 631 to rotate when the rotating shaft 621 rotates.

[0071] During operation, when the dual-axis motor 622 drives the rotating shaft 621 to rotate, the first worm gear segment 6411 on the rotating shaft 621 meshes with the first worm wheel 6412 on the linkage rod 643, causing the first worm wheel 6412 and the linkage rod 643 to rotate synchronously. When the linkage rod 643 rotates, the second worm gear segment 6421 on the linkage rod 643 meshes with the second worm wheel 6422 on the third threaded rod 631, causing the second worm wheel 6422 and the third threaded rod 631 to rotate synchronously. When the third threaded rod 631 rotates, it drives the third threaded cylinder 632, which is threaded to it, to move only horizontally under the cooperation of the connecting block 6331 and the telescopic guide post 6332. When the third threaded cylinder 632 moves horizontally, it directly drives the rectangular block 634 and the sealing cover 21 to move synchronously, thereby opening the inlet of the storage tank 2, so that when the conveying pipe 15 is inserted into the storage tank 2, the sealing cover 21 is in the open state to avoid obstructing the conveying. After the material is conveyed, the conveying pipe 15 exits the storage tank 2, and the sealing cover 21 closes to seal the inlet of the storage tank 2.

[0072] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A micro-quantitative sampling and storing device for pharmaceutical analysis, comprising a sampling cylinder (1) for extracting a pharmaceutical, a storing tank (2) for storing the pharmaceutical, and a conveying mechanism (6) for conveying the pharmaceutical in the sampling cylinder (1) to the storing tank (2) for storage, characterized in that: The storage tank (2) is placed in a storage box (3), and a stabilizing mechanism (4) is arranged in the storage box (3) to avoid shaking of the storage tank (2) and prolong the storage time of the medicine; The stabilizing mechanism (4) comprises an outer stabilizing frame (41) rotatably arranged in the storage box (3), an inner stabilizing frame (42) rotatably arranged in the outer stabilizing frame (41), a fixing assembly (43) arranged in the inner stabilizing frame (42) and used for fixing the storage tank (2), and a counterweight structure (44) connected to the inner stabilizing frame (42) and used for lowering the gravity center of the inner stabilizing frame (42), wherein the counterweight structure (44) is provided with a plug-in groove (444) for plug-in cooperation with the storage tank (2); The rotation axis of the outer stabilizing frame (41) is orthogonal to the rotation axis of the inner stabilizing frame (42).

2. The micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 1, characterized in that: The fixing assembly (43) comprises a fixing block (431) slidably arranged in the inner stabilizing frame (42) and clamping the storage tank (2) from both sides, a first threaded rod (432) symmetrically arranged in the inner stabilizing frame (42) and used for driving the fixing block (431) to move, and a synchronous structure (434) for driving the two first threaded rods (432) to synchronously rotate; one end of the first threaded rod (432) is provided with a handle wheel (433) facilitating manual rotation.

3. The micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 1, characterized in that: A pulling structure (32) for taking out the storage tank (2) from the storage box (3) is arranged between the storage box (3) and the stabilizing mechanism (4), the pulling structure (32) comprises a pulling frame (321) slidably arranged in the storage box (3), a sliding roller (322) fixedly arranged on both sides of the pulling frame (321), and a sliding groove (323) opened in the inner wall of the storage box (3) and used for sliding of the sliding roller (322); The outer stabilizing frame (41) is rotatably arranged in the pulling frame (321) and can synchronously move with the pulling frame (321).

4. The micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 3, characterized in that: A refrigeration assembly (5) is arranged on the inner bottom surface of the storage box (3), the refrigeration assembly (5) comprises a refrigeration machine (51) and a refrigeration pipe (52) connected to the refrigeration machine (51) and used for releasing cold air; The counterweight structure (44) comprises a counterweight box (441), the top of the counterweight box (441) is provided with a gas feeding hole (445), and a cold air suction fan (443) is arranged in the inner cavity of the counterweight box (441) to upwardly convey cold air to the storage tank (2) for temperature reduction and storage; The pulling frame (321) is located above the refrigeration assembly (5), and the bottom of the pulling frame (321) is provided with a gas permeation hole (326) for passing of cold air.

5. The micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 1, characterized in that: A protection box (33) is arranged on the top of the storage box (3), a sealing cover (21) for sealing is movably arranged at the inlet of the storage tank (2), and the conveying mechanism (6) is arranged in the protection box (33). The conveying mechanism (6) comprises an extraction assembly (61) arranged in the protection box (33) and used for extracting medicine into the sampling cylinder (1), a lifting and conveying assembly (62) arranged in the protection box (33) and used for transferring the medicine in the sampling cylinder (1) into the storage tank (2), and a moving assembly (63) used for moving the sealing cover (21) to open the storage tank (2).

6. A micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 5, characterized in that: The sampling cylinder (1) has an extraction cavity (11) for initially placing the extracted medicine, one end of the extraction cavity (11) is provided with a medicine inlet hole (12) and a medicine outlet hole (13), the medicine inlet hole (12) is provided with a one-way valve structure (141) for allowing the medicine to enter the extraction cavity (11) from the outside in a one-way manner, and the medicine outlet hole (13) is provided with a control valve structure (151) for allowing the medicine to flow out of the extraction cavity (11). The extraction assembly (61) comprises an extraction disc (611) slidably arranged in the extraction cavity (11), a second threaded cylinder (612) connected to the extraction disc (611), a second threaded rod (613) threadedly connected to the second threaded cylinder (612), and a driving motor (614) for driving the second threaded rod (613) to rotate; the second threaded cylinder (612) is provided with a limiting structure (615) for limiting the circumferential rotation thereof.

7. The micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 5, characterized in that: The protection box (33) is provided with a support plate (34) for mounting the sampling cylinder (1), and a conveying pipe (15) is arranged through the support plate (34) and connected to the medicine outlet hole (13) of the sampling cylinder (1). The lifting and conveying assembly (62) comprises a rotating shaft (621) rotatably arranged in the protection box (33), a double-shaft motor (622) for driving the rotating shaft (621) to rotate, a driving gear (623) fixedly connected to the rotating shaft (621), and a driving rack (624) fixedly connected to the top of the support plate (34) and engaged with the driving gear (623). The support plate (34) drives the sampling cylinder (1) to have a medicine taking state and a medicine conveying state; in the medicine taking state, the lower end of the conveying pipe (15) is separated from the storage tank (2), and the extraction assembly (61) drives the sampling cylinder (1) to extract medicine; in the medicine conveying state, the lower end of the conveying pipe (15) is inserted into the storage tank (2), and the extraction assembly (61) drives the medicine in the sampling cylinder (1) to be transferred into the storage tank (2).

8. A micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 7, characterized in that: The support plate (34) is provided with a first cylindrical magnet (346), the inner stabilizing frame (42) is provided with a second cylindrical magnet (347), and the first cylindrical magnet (346) and the second cylindrical magnet (347) are attracted to each other to keep the storage tank (2) stable when the conveying pipe (15) is inserted into the storage tank (2).

9. A micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 8, characterized in that: The moving assembly (63) comprises a third threaded rod (631) rotatably installed on the storage box (3), a third threaded cylinder (632) threadedly connected to the third threaded rod (631), and a limiting guide structure (633) connected to the third threaded cylinder (632) to limit rotation of the third threaded cylinder (632); the sealing cover (21) is fixedly connected to the third threaded cylinder (632) and can move synchronously with the third threaded cylinder (632); the third threaded rod (631) and the rotating shaft (621) are connected with a linkage assembly (64) to synchronously drive the sealing cover (21) to open the inlet of the storage tank (2) when the lifting and feeding assembly (62) operates.

10. The micro-quantitative sampling and storage device for pharmaceutical analysis according to claim 9, characterized in that: The linkage assembly (64) comprises a first worm gear structure (641) installed on the rotating shaft (621) and a second worm gear structure (642) installed on the third threaded rod (631), and the first worm gear structure (641) and the second worm gear structure (642) are connected with a linkage rod (643).

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