Potentiometric titrator for medicament detection

Abstract

The utility model relates to a potentiometric titrator for medicament detection. The device comprises a workbench, the top of the workbench is fixedly provided with a detector and a second supporting plate, the inner surface of the second supporting plate is slidably provided with a first transverse plate, the bottom of the first transverse plate is rotatably provided with a second transverse plate, and the inner surface of the second transverse plate is slidably provided with two clamping blocks. The opposite surfaces of the two clamping blocks are jointly and movably connected with a titrator, and a mixing barrel is movably mounted at the top of the worktable. The clamping mechanism is used for fixedly storing the mixing barrel; the clamping mechanism comprises three clamping plates, and three sliding grooves are formed in the top of the workbench. An output shaft of a first motor drives a rotating disc to rotate, three fourth grooves are matched with a sliding groove and a third groove to enable three clamping plates to be close to one another, in the process, a limiting plate slides on the inner surface of the third groove, the third groove can limit the clamping plates through the limiting plate at the moment, and then the three clamping plates clamp a mixing barrel.

Description

Technical Field

[0001] This utility model relates to the field of potentiometric titrator technology, and in particular to a potentiometric titrator for pharmaceutical testing. Background Technology

[0002] A potentiometric titrator is an analytical instrument that determines the titration endpoint by measuring changes in solution potential. In pharmaceutical testing, it is mainly used to accurately determine the content of drug components. Its core principle is: during titration, the analyte reacts chemically with the titrant. The potential abrupt change point of the solution (corresponding to the reaction endpoint) is monitored in real time by electrodes, and the concentration of the analyte is calculated by combining this with the amount of titrant consumed.

[0003] A search revealed that patent document CN213715151 U discloses an automatic potentiometric titrator, which includes a base, a potentiometric titrator body disposed on the base, and a measuring mechanism disposed on the base. The measuring mechanism includes a sample injection component for adding titrant to the sample cup, a lifting and positioning component disposed on the base for positioning the sample cup, a support component mounted on the potentiometric titrator body, a stirring component mounted on the support component for stirring the liquid in the sample cup, and a measuring electrode mounted on the support component for measuring the potential of the sample.

[0004] In actual use, the support components can support the sample and adjust the height of the sample. However, the spring-controlled arc-shaped positioning block is prone to displacement due to vibration and the clamping is unstable. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem of unstable clamping of the sample to be tested in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a potentiometric titrator for pharmaceutical detection, including a worktable, a detector and a second support plate fixedly installed on the top of the worktable, a first horizontal plate slidably installed on the inner surface of the second support plate, a second horizontal plate rotatably installed on the bottom of the first horizontal plate, two clamping blocks slidably installed on the inner surface of the second horizontal plate, and a titrator movably connected to the opposing surfaces of the two clamping blocks, and a mixing tank movably installed on the top of the worktable;

[0007] It also includes a clamping mechanism for securing the mixing tank;

[0008] The clamping mechanism includes three clamping plates. The top of the worktable has three sliding grooves. The three clamping plates are slidably installed on the inner surfaces of the three sliding grooves. A turntable is rotatably installed in the inner cavity of the worktable. The top of the turntable has three fourth grooves. The three clamping plates are slidably installed on the inner surfaces of the three fourth grooves.

[0009] In one embodiment of the present invention, a carrier plate is movably mounted on the top of the detector, and a first groove is provided on the top of the workbench, with a collection bucket movably mounted on the inner surface of the first groove.

[0010] In one embodiment of the present invention, a first support plate is fixedly installed in the inner cavity of the workbench, a first motor is fixedly installed on the top of the first support plate, and the output shaft of the first motor is fixedly installed at the bottom of the turntable.

[0011] In one embodiment of the present invention, a third groove is provided on the inner surface of the slide groove, and a limiting plate is fixedly installed on the outer surface of the clamping plate, and the limiting plate is slidably installed on the inner surface of the third groove.

[0012] In one embodiment of the present invention, a second groove is provided on one side of the workbench, a storage box is slidably installed on the inner surface of the second groove, and two rollers are rotatably installed on the outer surface of the storage box.

[0013] In one embodiment of this utility model, a second motor is fixedly installed on the top of the second support plate, and a threaded rod is fixedly connected to the output shaft of the second motor. The threaded rod is threadedly connected to the first horizontal plate. A third motor is fixedly installed on the top of the first horizontal plate, and the output shaft of the third motor passes through the first horizontal plate and is fixedly connected to the top of the second horizontal plate.

[0014] In one embodiment of this utility model, a sliding hole is provided at the top of the first horizontal plate, and a limiting rod is slidably installed on the inner surface of the sliding hole. The limiting rod is fixedly installed in the inner cavity of the second support plate. A third horizontal plate is provided on one side of the second horizontal plate, and a bidirectional threaded rod is rotatably installed on the inner surface of the third horizontal plate. Both clamping blocks are threadedly connected to the bidirectional threaded rod. One end of the bidirectional threaded rod passes through the third horizontal plate and is fixedly connected to a fourth motor. The fourth motor is fixedly installed on one side of the second horizontal plate.

[0015] In one embodiment of this utility model, a fifth motor is fixedly installed at the bottom of the first horizontal plate, the output shaft of the fifth motor passes through the first horizontal plate and is fixedly connected to a fourth horizontal plate, the fourth horizontal plate is rotatably installed at the top of the first horizontal plate, a sixth motor is fixedly installed at the top of the fourth horizontal plate, the output shaft of the sixth motor passes through the fourth horizontal plate and is fixedly connected to an electric telescopic rod, and a stirring block is fixedly connected to the output end of the electric telescopic rod.

[0016] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0017] The potentiometric titrator for pharmaceutical testing described in this utility model rotates a turntable via the output shaft of a first motor. Three fourth grooves, in conjunction with a sliding groove and a third groove, bring three clamping plates closer together. During this process, a limiting plate slides on the inner surface of the third groove, which then limits the clamping plates via the limiting plate. The three clamping plates then clamp the mixing tank. The output shaft of a fifth motor drives the fourth horizontal plate and the stirring block to the top of the mixing tank. Next, an electric telescopic rod extends to bring the stirring block into the inner cavity of the mixing tank. The output shaft of a sixth motor rotates the electric telescopic rod and the stirring block to stir the sample inside the mixing tank.

[0018] The potentiometric titrator for pharmaceutical testing described in this utility model uses a third motor to drive the titrator to the top of the mixing tank. The output shaft of the second motor, along with a threaded rod, moves the first horizontal plate downward, allowing the titrator to remove the sample from the mixing tank. Then, the third motor drives the second horizontal plate to rotate to the top of the carrier plate, where the titrator drips the sample onto the carrier plate, and the detection instrument completes the testing. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0021] Figure 2 This is a perspective view of the workbench connection structure in this utility model;

[0022] Figure 3 This is a perspective view of the turntable connection structure of this utility model;

[0023] Figure 4 This is a perspective view of the storage box installation structure in this utility model;

[0024] Figure 5 This is a perspective view of the clamping block driving structure in this utility model;

[0025] Figure 6 This is a perspective view of the stirring block driving structure in this utility model.

[0026] Explanation of reference numerals in the accompanying drawings: 1. Workbench; 11. Detector; 12. Carrier tray; 13. First groove; 131. Collection bucket; 14. Second groove; 2. Slide groove; 21. Third groove; 22. First support plate; 23. First motor; 24. Turntable; 25. Fourth groove; 26. Clamping plate; 261. Limiting plate; 27. Mixing bucket; 3. Storage box; 31. Roller; 4. Second support plate; 41. Second motor; 42. Threaded rod; 43. First horizontal plate; 431. Sliding hole; 432. Limiting rod; 44. Third motor; 45. Second horizontal plate; 451. Third horizontal plate; 452. Bidirectional threaded rod; 453. Fourth motor; 454. Clamping block; 455. Titrator; 46. Fourth horizontal plate; 461. Fifth motor; 462. Sixth motor; 463. Electric telescopic rod; 464. Stirring block. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0028] Reference Figures 1 to 6 As shown, a potentiometric titrator for pharmaceutical testing according to this utility model includes a worktable 1. A detector 11 and a second support plate 4 are fixedly installed on the top of the worktable 1. A first horizontal plate 43 is slidably installed on the inner surface of the second support plate 4. A second horizontal plate 45 is rotatably installed on the bottom of the first horizontal plate 43. Two clamping blocks 454 are slidably installed on the inner surface of the second horizontal plate 45. The two clamping blocks 454 are movably connected to the titrator 455 on their opposing surfaces. A mixing tank 27 is movably installed on the top of the worktable 1. The device also includes a clamping mechanism for fixing and storing the mixing tank 27. The clamping mechanism includes three clamping plates 26. Three sliding grooves 2 are opened on the top of the worktable 1. The three clamping plates 26 are slidably installed on the inner surface of the three sliding grooves 2 respectively. A turntable 24 is rotatably installed in the inner cavity of the worktable 1. Three fourth grooves 25 are opened on the top of the turntable 24. The three clamping plates 26 are slidably installed on the inner surface of the three fourth grooves 25 respectively.

[0029] When fixing the measurement sample, the general fixing structure uses a spring to push the arc-shaped fixing plate to fix the measurement sample. This method is prone to instability and causes the measurement sample to tilt.

[0030] In use, the sample is first placed in the mixing tank 27. The three clamping plates 26 slide along the three sliding grooves 2 and move closer to each other to clamp the mixing tank 27. Then, the first horizontal plate 43 slides the second horizontal plate 45 up and down so that the titrator 455 can be inserted into the mixing tank 27 to extract the sample. Then, the second horizontal plate 45 rotates along the first horizontal plate 43 to transfer the sample to be tested onto the detector 11 for testing.

[0031] Furthermore, such as Figure 1 and Figure 2 As shown, a carrier plate 12 is movably mounted on the top of the detector 11, and a first groove 13 is provided on the top of the workbench 1. A collection bucket 131 is movably mounted on the inner surface of the first groove 13.

[0032] In use, the sample to be tested is taken out from the mixing tank 27 and then transferred to the carrier plate 12, which facilitates the testing of the sample and also makes it convenient for staff to clean the carrier plate 12.

[0033] Furthermore, such as Figure 2 and Figure 3 As shown, a first support plate 22 is fixedly installed in the inner cavity of the workbench 1, a first motor 23 is fixedly installed on the top of the first support plate 22, and the output shaft of the first motor 23 is fixedly installed at the bottom of the turntable 24.

[0034] The inner surface of the slide 2 is provided with a third groove 21, and a limiting plate 261 is fixedly installed on the outer surface of the clamping plate 26. The limiting plate 261 is slidably installed on the inner surface of the third groove 21.

[0035] In use, the first motor 23 drives the turntable 24 to rotate via its output shaft. The turntable 24 then moves the clamping plate 26 via three fourth grooves 25. At this time, the limiting plate 261 slides on the inner surface of the third groove 21. Under the combined limiting of the slide groove 2 and the third groove 21, the three clamping plates 26 move closer to each other to clamp the mixing barrel 27.

[0036] Furthermore, such as Figure 4 As shown, a second groove 14 is provided on one side of the workbench 1, and a storage box 3 is slidably installed on the inner surface of the second groove 14. Two rollers 31 are rotatably installed on the outer surface of the storage box 3.

[0037] When using this utility model, the staff can place the parts used in the testing process into the inner cavity of the storage box 3. When the storage box 3 needs to be pulled out, the two rollers 31 will roll in the inner cavity of the worktable 1. This makes the storage box 3 more stable during the process of pulling out or sliding into the inner cavity of the worktable 1. At the same time, the two rollers 31 support the storage box 3 and, together with the second groove 14, enable the storage box 3 to always maintain balance.

[0038] Furthermore, such as Figure 5 As shown, a second motor 41 is fixedly installed on the top of the second support plate 4, and a threaded rod 42 is fixedly connected to the output shaft of the second motor 41. The threaded rod 42 is threadedly connected to the first horizontal plate 43. A third motor 44 is fixedly installed on the top of the first horizontal plate 43, and the output shaft of the third motor 44 passes through the first horizontal plate 43 and is fixedly connected to the top of the second horizontal plate 45.

[0039] The first horizontal plate 43 has a sliding hole 431 at its top. A limit rod 432 is slidably installed on the inner surface of the sliding hole 431. The limit rod 432 is fixedly installed in the inner cavity of the second support plate 4. A third horizontal plate 451 is provided on one side of the second horizontal plate 45. A bidirectional threaded rod 452 is rotatably installed on the inner surface of the third horizontal plate 451. Both clamping blocks 454 are threadedly connected to the bidirectional threaded rod 452. One end of the bidirectional threaded rod 452 passes through the third horizontal plate 451 and is fixedly connected to a fourth motor 453. The fourth motor 453 is fixedly installed on one side of the second horizontal plate 45.

[0040] In use, the second motor 41 drives the threaded rod 42 to rotate via its output shaft. The limiting rod 432 slides on the inner surface of the sliding hole 431 to limit the first horizontal plate 43, allowing the first horizontal plate 43 to slide up and down along the second support plate 4. The fourth motor 453 drives the bidirectional threaded rod 452 to rotate via its output shaft. The bidirectional threaded rod 452 controls the two clamping blocks 454 to clamp the titrator 455. Then, the third motor 44 drives the second horizontal plate 45 to rotate via its output shaft. The second horizontal plate 45 can transfer the test sample on the titrator 455 to the carrier plate 12.

[0041] Furthermore, such as Figure 6 As shown, a fifth motor 461 is fixedly installed at the bottom of the first horizontal plate 43. The output shaft of the fifth motor 461 passes through the first horizontal plate 43 and is fixedly connected to a fourth horizontal plate 46. The fourth horizontal plate 46 is rotatably installed on the top of the first horizontal plate 43. A sixth motor 462 is fixedly installed on the top of the fourth horizontal plate 46. The output shaft of the sixth motor 462 passes through the fourth horizontal plate 46 and is fixedly connected to an electric telescopic rod 463. A stirring block 464 is fixedly connected to the output end of the electric telescopic rod 463.

[0042] In use, the fourth horizontal plate 46 is rotated by the output shaft of the fifth motor 461, which moves the fourth horizontal plate 46 and the electric telescopic rod 463 to the top of the mixing tank 27. Then, the output end of the electric telescopic rod 463 extends to place the stirring block 464 in the inner cavity of the mixing tank 27. The sixth motor 462 rotates the electric telescopic rod 463 and the stirring block 464 to stir and mix the test sample in the mixing tank 27. After stirring, the sixth motor 462 drives the stirring block 464 to the top of the collection tank 131. At this time, the sample remaining on the stirring block 464 will drip into the collection tank 131. This makes it easier for the staff to clean the stirring block 464 and prevents the sample residue on the stirring block 464 from dripping onto the workbench 1.

[0043] Working principle: First, the sample is placed in the mixing tank 27. Then, the mixing tank 27 is placed between three clamping plates 26. The output shaft of the first motor 23 drives the turntable 24 to rotate. The three fourth grooves 25 cooperate with the sliding groove 2 and the third groove 21 to bring the three clamping plates 26 closer to each other. During this process, the limiting plate 261 slides on the inner surface of the third groove 21. The third groove 21 can limit the clamping plate 26 through the limiting plate 261. Then, the three clamping plates 26 clamp the mixing tank 27. The output shaft of the fifth motor 461 drives the fourth horizontal plate 46 and the stirring block 464 to the top of the mixing tank 27. Then, the electric telescopic rod 463 extends to bring the stirring block 464 into the inner cavity of the mixing tank 27. The output shaft of the sixth motor 462 drives the electric telescopic rod 463 and the stirring block 464 to rotate to stir the sample in the inner cavity of the mixing tank 27.

[0044] After stirring, the stirring block 464 is removed from the inner cavity of the mixing tank 27. The titrator 455 is driven to the top of the mixing tank 27 by the third motor 44. The output shaft of the second motor 41, along with the threaded rod 42, moves the first horizontal plate 43 downward, allowing the titrator 455 to remove the sample from the mixing tank 27. Then, the second horizontal plate 45 is driven to rotate to the top of the carrier plate 12 by the third motor 44. The titrator 455 drips the sample onto the carrier plate 12 and completes the detection by the detector 11.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A potentiometric titrator for pharmaceutical testing, comprising a workbench (1), wherein a detector (11) and a second support plate (4) are fixedly mounted on the top of the workbench (1), a first horizontal plate (43) is slidably mounted on the inner surface of the second support plate (4), a second horizontal plate (45) is rotatably mounted on the bottom of the first horizontal plate (43), two clamping blocks (454) are slidably mounted on the inner surface of the second horizontal plate (45), and the titrator (455) is movably connected to the opposing surfaces of the two clamping blocks (454), and a mixing tank (27) is movably mounted on the top of the workbench (1); It also includes a clamping mechanism for securing the storage mixing container (27); Its features are: The clamping mechanism includes three clamping plates (26), and the top of the worktable (1) is provided with three sliding grooves (2). The three clamping plates (26) are slidably installed on the inner surface of the three sliding grooves (2). A turntable (24) is rotatably installed in the inner cavity of the worktable (1). The top of the turntable (24) is provided with three fourth grooves (25), and the three clamping plates (26) are slidably installed on the inner surface of the three fourth grooves (25).

2. The potentiometric titrator for pharmaceutical detection according to claim 1, characterized in that: The detector (11) has a carrier plate (12) movably mounted on its top, and the workbench (1) has a first groove (13) on its top, with a collection bucket (131) movably mounted on the inner surface of the first groove (13).

3. The potentiometric titrator for pharmaceutical detection according to claim 2, characterized in that: The inner cavity of the workbench (1) is fixedly installed with a first support plate (22), and a first motor (23) is fixedly installed on the top of the first support plate (22). The output shaft of the first motor (23) is fixedly installed on the bottom of the turntable (24).

4. The potentiometric titrator for pharmaceutical detection according to claim 3, characterized in that: The inner surface of the slide groove (2) is provided with a third groove (21), and a limiting plate (261) is fixedly installed on the outer surface of the clamping plate (26). The limiting plate (261) is slidably installed on the inner surface of the third groove (21).

5. A potentiometric titrator for pharmaceutical detection according to claim 4, characterized in that: A second groove (14) is provided on one side of the workbench (1), and a storage box (3) is slidably installed on the inner surface of the second groove (14). Two rollers (31) are rotatably installed on the outer surface of the storage box (3).

6. A potentiometric titrator for pharmaceutical detection according to claim 5, characterized in that: A second motor (41) is fixedly installed on the top of the second support plate (4). The output shaft of the second motor (41) is fixedly connected to a threaded rod (42). The threaded rod (42) is threadedly connected to the first horizontal plate (43). A third motor (44) is fixedly installed on the top of the first horizontal plate (43). The output shaft of the third motor (44) passes through the first horizontal plate (43) and is fixedly connected to the top of the second horizontal plate (45).

7. A potentiometric titrator for pharmaceutical detection according to claim 6, characterized in that: The first horizontal plate (43) has a sliding hole (431) at the top. A limit rod (432) is slidably installed on the inner surface of the sliding hole (431). The limit rod (432) is fixedly installed in the inner cavity of the second support plate (4). A third horizontal plate (451) is provided on one side of the second horizontal plate (45). A bidirectional threaded rod (452) is rotatably installed on the inner surface of the third horizontal plate (451). Both clamping blocks (454) are threadedly connected to the bidirectional threaded rod (452). One end of the bidirectional threaded rod (452) passes through the third horizontal plate (451) and is fixedly connected to a fourth motor (453). The fourth motor (453) is fixedly installed on one side of the second horizontal plate (45).

8. A potentiometric titrator for pharmaceutical detection according to claim 7, characterized in that: A fifth motor (461) is fixedly installed at the bottom of the first horizontal plate (43). The output shaft of the fifth motor (461) passes through the first horizontal plate (43) and is fixedly connected to a fourth horizontal plate (46). The fourth horizontal plate (46) is rotatably installed on the top of the first horizontal plate (43). A sixth motor (462) is fixedly installed on the top of the fourth horizontal plate (46). The output shaft of the sixth motor (462) passes through the fourth horizontal plate (46) and is fixedly connected to an electric telescopic rod (463). A stirring block (464) is fixedly connected to the output end of the electric telescopic rod (463).

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