Titration device for drug detection

Abstract

The utility model discloses a medicine detection titration device which comprises a device base, a square rod is fixedly connected to the top of the device base, and a supporting rod is slidably connected to the outer wall of the square rod. According to the medicine detection titration device provided by the utility model, the cam can be driven to rotate by controlling the servo motor, so that the movable block slides in the device base by pushing the fixed plate, and when the cam does not push the fixed plate, the movable block resets under the action of the elastic force of the first spring, so that the titration is finished. When titration operation is carried out, a burette can be fixed on a supporting rod, a beaker is placed in a bearing block, and then the moving block is controlled to slide in the device base in a reciprocating manner, so that the beaker is shaken; the phenomenon that the titrant is locally excessive or insufficient in the solution in the beaker is reduced, the condition that the flask is manually shaken is avoided, and the convenience of titration operation is improved.

Description

Technical Field

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

[0002] There are many testing items in drug testing, including drug quality testing, drug component testing, drug heavy metal testing, drug adverse reaction testing, etc. The purpose of drug testing is to prevent unqualified drugs from entering the market and to ensure drug safety. Titration in drug testing involves adding titrant to the solution of the drug being tested through a burette until the standard substance (often called titrant) in the titrant reacts completely with the drug being tested, and then calculating the content of the drug being tested according to the chemical formula stoichiometry.

[0003] For example, Chinese utility model patent (CN222152106U) discloses a drug detection titration device, which describes: "On the one hand, after the reaction is completed, the beaker can be directly removed from the inside of the receiving tank; on the other hand, the titrant in the burette can react with different test solutions, achieving the advantages of using one burette to react with different test liquids, and making it easier to remove the beaker, thus being more efficient and convenient." It also describes the technical problem that "after the titrant and analyte have reacted, it is necessary to release the clamp on the beaker and remove it, and then replace it with another beaker for titration detection, resulting in low operational efficiency."

[0004] In summary, existing technologies utilize loading strips to hold multiple beakers for titration. However, this method presents the following technical problems: during the titration process, the flask is typically gently shaken to ensure thorough mixing and prevent local over- or under-mixing. The aforementioned devices lack an auxiliary structure for shaking the beakers, necessitating manual shaking, which is cumbersome and reduces the device's practicality. Therefore, this application proposes a pharmaceutical titration device to address the aforementioned technical problems and provide a new technical solution. Utility Model Content

[0005] Therefore, it is necessary to provide a pharmaceutical titration device to address the aforementioned technical problems. By controlling a servo motor, a cam can be rotated, which in turn pushes a fixed plate, causing a moving block to slide inside the device base. When the cam stops pushing the fixed plate, the moving block returns to its original position under the force of a first spring, allowing it to slide back and forth within the device base. During titration, the burette can be fixed to the support rod, and the beaker placed in the receiving block. Controlling the moving block to slide back and forth within the device base agitates the beaker, reducing the possibility of localized excess or deficiency of titrant in the solution. This eliminates the need for manual shaking of the flask, improves the convenience of the titration operation, and enhances the practicality of the device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A titration device for drug testing, which is used in drug testing.

[0008] The drug detection titration device specifically includes:

[0009] The device base has a square rod fixedly connected to its top, a support rod slidably connected to the outer wall of the square rod, a first screw threadedly connected to the inner wall of the support rod, a rocking mechanism provided on the top of the device base and near the left and right sides, and a moving mechanism provided on each of the two rocking mechanisms, a plurality of second screws threadedly connected to the inner wall of the support rod, a clamping plate rotatably connected to the outer wall of the second screws, a sliding rod fixedly connected to the outer wall of the clamping plate, and the sliding rod slidably connected to the inner wall of the support rod.

[0010] The shaking mechanism includes a moving block, a fixed plate, a driving component, and a reset component. The moving block is slidably connected to the inner wall of the device base, and the fixed plate is fixedly connected to the outer wall of the moving block.

[0011] In a preferred embodiment of the drug testing titration device provided by this utility model, the driving component includes a servo motor, the servo motor is fixedly mounted on the top of the device base, and a cam is fixedly connected to the output end of the servo motor.

[0012] In a preferred embodiment of the drug detection titration device provided by this utility model, the reset component includes a fixing rod, and a plurality of fixing rods are fixedly connected to the inner wall of the device base. The plurality of fixing rods are slidably connected to the inner wall of the moving block, and a first spring is sleeved on the outside of the plurality of fixing rods. The two ends of the first spring are respectively fixedly connected to the outer wall of the moving block and the device base.

[0013] In a preferred embodiment of the drug testing titration device provided by this utility model, the moving mechanism includes a receiving block, a T-shaped slide rail, a blocking component, and a limiting component. Two T-shaped slide rails are slidably connected to the inner wall of the moving block, and both T-shaped slide rails are fixedly connected to the bottom of the receiving block.

[0014] In a preferred embodiment of the drug detection titration device provided by this utility model, the blocking component includes a T-shaped disk, a plurality of T-shaped disks are slidably connected to the inner wall of the moving block, a second spring is fixedly connected to the bottom of each of the plurality of T-shaped disks, the bottom of each of the plurality of second springs is fixedly connected to the inner wall of the moving block, and a hemisphere is fixedly connected to the top of each of the plurality of T-shaped disks, the hemisphere being movably inserted into the bottom of the receiving block.

[0015] In a preferred embodiment of the drug testing titration device provided by this utility model, the limiting component includes a connecting plate, the outer wall of the moving block is fixedly connected to the connecting plate, the inner wall of the receiving block is threadedly connected to a third screw, and the end of the third screw away from the receiving block passes through the connecting plate and is fixedly connected to a knob.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The pharmaceutical titration device provided by this utility model can drive a cam to rotate by controlling a servo motor, which in turn pushes a fixed plate to make a moving block slide inside the device base. When the cam stops pushing the fixed plate, the moving block returns to its original position under the action of a first spring, allowing the moving block to slide back and forth within the device base. During titration, the burette can be fixed on the support rod, and the beaker can be placed in the receiving block. The moving block is then controlled to slide back and forth within the device base, thus shaking the beaker. This reduces the occurrence of local excess or deficiency of titrant in the solution in the beaker, avoids the need for manual shaking of the flask, improves the convenience of titration operation, and enhances the practicality of the device.

[0018] The pharmaceutical titration device provided by this utility model allows the third screw to rotate by turning a knob, which in turn causes the knob to disengage from the connecting plate. This allows the receiving block, carrying the T-shaped slide rail, to slide on the moving block. After titration is completed in the beaker below the burette fixed on the current support rod, pushing the receiving block allows the beaker located below the burette to be replaced. This allows the solution in the burette to react with the corresponding test solution in different beakers. During the process of pushing the receiving block, initially, the receiving block compresses some hemispheres, causing the T-shaped disk to slide inwards into the moving block, thus disengaging the hemispheres from the bottom of the current receiving block. The corresponding groove in the burette allows the top of the hemisphere to contact the bottom of the receiving block. As the receiving block slides, the next groove on the receiving block moves above the hemisphere, causing the hemisphere to engage in the next groove. This allows the receiving block to be pushed a certain distance before being obstructed again by the hemisphere, ensuring that the receiving block can be pushed relatively accurately to a certain distance before stopping. This reduces the possibility of titrant dripping onto the inner wall of the beaker due to the burette not being properly aligned with it, thus reducing the amount of reagent actually participating in the reaction and affecting the accuracy of the titration. Attached Figure Description

[0019] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the drug testing titration device provided by this utility model;

[0021] Figure 2 A schematic diagram of the internal structure of the base of the drug testing titration device provided by this utility model;

[0022] Figure 3 An exploded structural diagram of part of the shaking mechanism of the drug testing titration device provided by this utility model;

[0023] Figure 4 A schematic diagram of the internal structure of the moving block and receiving block of the drug testing titration device provided by this utility model;

[0024] Figure 5 A schematic diagram of the structure of the receiving block of the drug testing titration device provided by this utility model after it has been moved.

[0025] The markings in the diagram are explained as follows:

[0026] 1. Device base; 2. Square rod; 3. Support rod; 4. First screw; 5. Shaking mechanism; 6. Moving mechanism; 7. Second screw; 8. Clamping plate; 9. Sliding rod; 10. Moving block; 11. Fixing plate; 12. Servo motor; 13. Cam; 14. Fixing rod; 15. First spring; 16. Receiving block; 17. T-shaped slide rail; 18. Second spring; 19. T-shaped disk; 20. Hemisphere; 21. Connecting plate; 22. Third screw; 23. Knob. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] As described in the background art, during the titration operation of the burette into the beaker, it is generally necessary to gently shake the flask to ensure that the solution is fully mixed in order to avoid local over- or under-mixing. However, the above-mentioned device does not have a structure to assist in shaking the beaker, so the beaker needs to be shaken manually, which is a rather troublesome process and reduces the practicality of the device.

[0029] To solve this technical problem, this utility model provides a drug detection titration device, which is applied to drug detection.

[0030] For details, please refer to Figures 1-3 The drug testing titration device specifically includes:

[0031] The device base 1 has a square rod 2 fixedly connected to its top. A support rod 3 is slidably connected to the outer wall of the square rod 2. A first screw 4 is threadedly connected to the inner wall of the support rod 3. A shaking mechanism 5 is provided on the top of the device base 1 and near the left and right sides. A moving mechanism 6 is provided on each of the two shaking mechanisms 5. Multiple second screws 7 are threadedly connected to the inner wall of the support rod 3. A clamping plate 8 is rotatably connected to the outer wall of the second screw 7. A sliding rod 9 is fixedly connected to the outer wall of the clamping plate 8. The sliding rod 9 is slidably connected to the inner wall of the support rod 3.

[0032] The shaking mechanism 5 includes a moving block 10, a fixed plate 11, a drive assembly, and a reset assembly. The moving block 10 is slidably connected to the inner wall of the device base 1, and the fixed plate 11 is fixedly connected to the outer wall of the moving block 10.

[0033] The pharmaceutical titration device provided by this utility model can drive the cam 13 to rotate by controlling the servo motor 12, which in turn pushes the fixed plate 11 to make the moving block 10 slide inside the device base 1. When the cam 13 does not push the fixed plate 11, the moving block 10 is reset under the action of the first spring 15, so that the moving block 10 can slide back and forth in the device base 1. During the titration operation, the burette can be fixed on the support rod 3, the beaker can be placed in the receiving block 16, and the moving block 10 can be controlled to slide back and forth in the device base 1 to shake the beaker, thereby reducing the phenomenon of local excess or deficiency of titrant in the solution of the beaker, avoiding the need for manual shaking of the flask, improving the convenience of the titration operation, and thus improving the practicality of the device.

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] Example 1:

[0036] Please refer to Figures 2-4 A drug testing titration device, comprising:

[0037] The drive assembly includes a servo motor 12. The servo motor 12 is fixedly mounted on the top of the device base 1. The output end of the servo motor 12 is fixedly connected to a cam 13. The servo motor 12 in the drive assembly drives the cam 13 to rotate, which can push the fixed plate 11. When the protrusion of the cam 13 presses against the fixed plate 11, it can push the fixed plate 11. When the protrusion of the cam 13 leaves the fixed plate 11, it can release the push on the fixed plate 11.

[0038] The reset assembly includes a fixing rod 14. Multiple fixing rods 14 are fixedly connected to the inner wall of the device base 1. The multiple fixing rods 14 are slidably connected to the inner wall of the moving block 10. A first spring 15 is sleeved on the outside of the multiple fixing rods 14. The two ends of the first spring 15 are fixedly connected to the outer wall of the moving block 10 and the device base 1, respectively. The reset assembly can cause the moving block 10 to slide towards the position of the cam 13 when the protrusion of the cam 13 leaves the fixing plate 11, so that the moving block 10 moves to the initial position before being pushed.

[0039] With the above structural design, the burette is inserted into the support rod 3, and then the two corresponding second screws 7 are rotated one by one. The rotation of the second screws 7 causes the corresponding clamping plate 8 to move under the restriction of the sliding rod 9, thus clamping the burette. Then, the first screw 4 can be loosened, allowing the support rod 3 to slide on the square rod 2, thereby adjusting the height of the burette. Then, beakers can be placed one by one into the corresponding slots on the receiving block 16. Then, by controlling the servo motor 12, the cam 13 can be rotated accordingly. Then, by pushing the fixed plate 11, the moving block 10 slides inside the device base 1, which causes the corresponding first spring 15 to deform. When the cam 13 does not push the fixed plate 11, the moving block 10 returns to its original position under the action of the spring force of the first spring 15. As the cam 13 continues to rotate, the moving block 10 can slide back and forth inside the device base 1, thereby shaking the beaker. When the titrant in the burette falls into the corresponding beaker, the shaking beaker can accelerate the rapid mixing of the original solution and the titrant in the beaker.

[0040] Example 2:

[0041] The drug detection titration device provided in Example 1 has been further optimized, specifically, as follows: Figures 4-5 As shown, the moving mechanism 6 includes a receiving block 16, a T-shaped slide rail 17, a blocking component, and a limiting component. The inner wall of the moving block 10 is slidably connected to two T-shaped slide rails 17. Both T-shaped slide rails 17 are fixedly connected to the bottom of the receiving block 16. The top of the receiving block 16 has multiple slots for placing beakers.

[0042] The blocking assembly includes T-shaped disks 19. Multiple T-shaped disks 19 are slidably connected to the inner wall of the moving block 10. The bottom of each T-shaped disk 19 is fixedly connected to a second spring 18. The bottom of each second spring 18 is fixedly connected to the inner wall of the moving block 10. A hemisphere 20 is fixedly connected to the top of each T-shaped disk 19. The hemisphere 20 is movably inserted into the bottom of the receiving block 16. When the receiving block 16 is pushed, the receiving block 16 will squeeze the hemisphere 20 inserted inside the receiving block 16. As the receiving block 16 is pushed further, the hemisphere 20 that was originally inserted inside the receiving block 16 will leave the receiving block 16. As the receiving block 16 is pushed further, the hemisphere 20 can be inserted into the next groove at the bottom of the receiving block 16, or leave the receiving block 16. The beaker above the receiving block 16 moves once, the beaker that was originally below the burette leaves, and the next beaker is below the burette.

[0043] The limiting component includes a connecting plate 21. The outer wall of the moving block 10 is fixedly connected to the connecting plate 21. The inner wall of the receiving block 16 is threadedly connected to a third screw 22. The end of the third screw 22 away from the receiving block 16 passes through the connecting plate 21 and is fixedly connected to a knob 23. Tightening the knob 23 will make the knob 23 fit tightly against the outer wall of the connecting plate 21, which will further limit the receiving block 16 and reduce the situation where the position of the receiving block 16 is offset due to the shaking of the receiving block 16.

[0044] With the above structural design, when it is necessary to switch the beaker located below the burette, turning the knob 23 will drive the third screw 22 to rotate, thereby causing the knob 23 to disengage from the connecting plate 21. This allows the receiving block 16, carrying the T-shaped slide rail 17, to slide on the moving block 10. Initially, during the pushing of the receiving block 16, the receiving block 16 compresses some hemispheres 20, causing the T-shaped disk 19 to slide inwards into the moving block 10. The second spring 18 deforms, causing the hemispheres 20 to leave the corresponding groove at the bottom of the current receiving block 16, so that the top of the hemispheres 20 is in contact with the bottom of the receiving block 16. As the receiving block 16... By sliding, the next groove on the receiving block 16 can be moved above the hemisphere 20, causing the hemisphere 20 to engage in the next groove. The hemisphere 20 closest to the receiving block 16 in the direction of movement changes from not contacting the receiving block 16 to engaging at the bottom of the receiving block 16. The hemisphere 20 closest to the bottom of the other end in the direction of movement of the receiving block 16 leaves the receiving block 16, allowing the receiving block 16 to be pushed relatively accurately a certain distance before stopping. This reduces the possibility of titrant dripping onto the inner wall of the beaker due to the burette not being properly aligned with the beaker. Then, tighten the knob 23 so that the knob 23 contacts the outside of the connecting plate 21, thus completing the switching of the beaker position.

Claims

1. A drug detection titration device, comprising a device base (1), characterized in that: A square rod (2) is fixedly connected to the top of the device base (1). A support rod (3) is slidably connected to the outer wall of the square rod (2). A first screw (4) is threadedly connected to the inner wall of the support rod (3). A shaking mechanism (5) is provided on the top of the device base (1) and near the left and right sides. A moving mechanism (6) is provided on each of the two shaking mechanisms (5). A plurality of second screws (7) are threadedly connected to the inner wall of the support rod (3). A clamping plate (8) is rotatably connected to the outer wall of the second screw (7). A sliding rod (9) is fixedly connected to the outer wall of the clamping plate (8). The sliding rod (9) is slidably connected to the inner wall of the support rod (3). The shaking mechanism (5) includes a moving block (10), a fixed plate (11), a driving component, and a reset component. The moving block (10) is slidably connected to the inner wall of the device base (1), and the fixed plate (11) is fixedly connected to the outer wall of the moving block (10).

2. The drug detection titration apparatus according to claim 1, characterized in that, The drive assembly includes a servo motor (12), which is fixedly mounted on the top of the device base (1), and a cam (13) is fixedly connected to the output end of the servo motor (12).

3. The drug detection titration apparatus according to claim 1, characterized in that, The reset assembly includes a fixing rod (14). Multiple fixing rods (14) are fixedly connected to the inner wall of the device base (1). The multiple fixing rods (14) are slidably connected to the inner wall of the moving block (10). A first spring (15) is sleeved on the outside of the multiple fixing rods (14). The two ends of the first spring (15) are fixedly connected to the outer wall of the moving block (10) and the device base (1), respectively.

4. The drug detection titration apparatus according to claim 1, characterized in that, The moving mechanism (6) includes a receiving block (16), a T-shaped slide rail (17), a blocking component, and a limiting component. The inner wall of the moving block (10) is slidably connected to two T-shaped slide rails (17), and both T-shaped slide rails (17) are fixedly connected to the bottom of the receiving block (16).

5. The drug detection titration apparatus according to claim 4, characterized in that, The blocking assembly includes a T-shaped disk (19), and multiple T-shaped disks (19) are slidably connected to the inner wall of the moving block (10). The bottom of each of the multiple T-shaped disks (19) is fixedly connected to a second spring (18), and the bottom of each of the multiple second springs (18) is fixedly connected to the inner wall of the moving block (10). The top of each of the multiple T-shaped disks (19) is fixedly connected to a hemisphere (20), and the hemisphere (20) is movably inserted into the bottom of the receiving block (16).

6. The drug detection titration apparatus according to claim 4, characterized in that, The limiting component includes a connecting plate (21), the outer wall of the moving block (10) is fixedly connected to the connecting plate (21), the inner wall of the receiving block (16) is threadedly connected to a third screw (22), and the end of the third screw (22) away from the receiving block (16) passes through the connecting plate (21) and is fixedly connected to a knob (23).

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