Analysis titration device for drug inspection

Abstract

The utility model relates to the technical field of medicine inspection, and discloses an analysis titration device for medicine inspection, which comprises a titration table, the top of the titration table is connected with a stand column through a clamping block, quick release mechanisms are arranged on the rear side of the titration table at equal intervals and are clamped with the stand column, a lifting mechanism is arranged in the stand column, and the lifting mechanism is connected with the stand column. The lifting mechanism is connected with the pipe clamp; the lifting mechanism comprises a rotating shaft, the rotating shaft is rotationally connected into the stand column, a handle is arranged at the outer end of the rotating shaft, a gear is arranged in the middle of the rotating shaft, and a middle-sized groove is formed in the front side of the stand column. According to the utility model, the mounting and dismounting convenience of the stand column is improved through the quick dismounting mechanism, the experiment preparation time is shortened, and the applicability and operation convenience of equipment are improved. A lifting mechanism and a ratchet wheel and pawl locking mechanism are adopted, so that accurate adjustment and stability of the height of the burette are ensured, and the problem of unstable height in the prior art is solved.

Description

Technical Field

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

[0002] Titration analysis, used in drug inspection, is a quantitative analytical method that involves adding a standard solution of known concentration to a solution of the analyte until the reaction is complete. By calculating the concentration and volume of the standard solution consumed, the content of the analyte is estimated based on stoichiometry. Because this method relies on precise measurement of solution volume, it is also called volumetric analysis. Titration analysis is widely used in drug inspection to accurately determine the content of the active ingredients in drugs, ensuring that drug quality meets standards. It is an important tool for drug quality control and inspection.

[0003] A titration apparatus for pharmaceutical testing mainly consists of a burette, titration stand, and conical flask or beaker. The burette is the key component, and it comes in acidic and alkaline types. The liquid flow rate is controlled by a glass stopcock or rubber tubing and a glass bead. The titration stand is used to hold the burette, and the conical flask or beaker holds the solution to be titrated. The working principle is to add a standard solution of known concentration dropwise from the burette to the solution to be tested, and determine the reaction endpoint based on the color change of the indicator, thereby calculating the content of the analyte.

[0004] The analytical titration apparatus has a fixed height, and the burette rack cannot be adjusted, which makes it unable to accommodate test tubes or beakers of different volumes in actual use, reducing the flexibility and compatibility of experiments. To address this issue, an analytical titration apparatus for pharmaceutical testing is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an analytical titration device for pharmaceutical testing, aiming to improve the problem that existing analytical titration devices have a fixed height and the burette rack cannot be adjusted, which makes it impossible to adapt to test tubes or beakers of different volumes in actual use, reducing the flexibility and compatibility of experiments.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an analytical titration device for pharmaceutical testing, comprising a titration stage, the top of which is connected to a column via a locking block, quick-release mechanisms being equidistantly arranged on the rear side of the titration stage and engaging with the column, and a lifting mechanism being provided inside the column and connected to a tube clamp.

[0007] The lifting mechanism includes a rotating shaft rotatably connected to the inside of a column. A handle is provided at the outer end of the rotating shaft, and a gear is provided in the middle of the rotating shaft. A medium-sized groove is provided on the front side of the column, and a medium-sized slider slides inside the medium-sized groove. A rack is provided on the inner side of the medium-sized slider, and the rack meshes with the gear. A connecting rod is provided on the outer side of the medium-sized slider, and a pipe clamp is provided at the outer end of the connecting rod. A burette is provided in the pipe clamp, and a locking component is also provided on the inner side of the column.

[0008] As a further description of the above technical solution: the locking assembly includes an L-shaped plate, which is disposed inside the column. A ratchet is disposed on the inner side of the rotating shaft, and a pawl is engaged with the ratchet. The end of the pawl away from the rotating shaft is rotatably connected to the inner side of the L-shaped plate by a screw. A fixing plate is disposed inside the column, and a spring is disposed between the fixing plate and the pawl. An L-shaped rod is disposed on the top of the pawl, and the L-shaped rod passes through a square hole in the column.

[0009] As a further description of the above technical solution: the quick-release mechanism includes square boxes, all of which are equidistantly arranged on the rear side of the titration stage. T-shaped sliders slide inside each square box, and springs are provided between each T-shaped slider and the inner wall of the square box. A locking rod and a pull rod are respectively provided on the outside of each T-shaped slider, and the locking rods are engaged with the round holes on the outside of the column.

[0010] As a further description of the above technical solution: a display screen is provided at the front of the titration stage, a button is provided on the side near the titration stage, and a beaker is provided on the top of the titration stage;

[0011] As a further description of the above technical solution: the top opening of the beaker is directly opposite the outlet of the burette;

[0012] As a further description of the above technical solution: the top of the titration stage is provided with an anti-slip pad to enhance the stability of the equipment on the experimental table surface;

[0013] As a further description of the above technical solution: the bottom four corners of the titration stage are provided with support bases, and the support bases are evenly distributed.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model employs a quick-release mechanism, utilizing components such as a square box, T-shaped slider, spring 2, locking rod, and pull rod to achieve rapid disassembly and installation of the column, greatly improving the convenience of the device and the efficiency of experimental preparation. Compared to the common fixed connection structures in existing technologies, traditional devices require longer disassembly and installation times and are less flexible. The quick-release mechanism solves the problems of complex and time-consuming disassembly, significantly improving the applicability and ease of operation of the device in different experimental environments.

[0016] 2. This utility model employs a lifting mechanism, utilizing the synergistic action of a rotating shaft, gears, racks, and a medium-sized slider, combined with a ratchet and pawl locking mechanism, to achieve precise adjustment of the burette height and ensure its stability. The meshing design of the ratchet and pawl effectively prevents accidental displacement of the burette during adjustment, improving the reliability of the device. Compared to existing technologies that lack an effective locking device after burette height adjustment, leading to instability, the ratchet and pawl locking mechanism solves this deficiency, ensuring the stability of the burette, making the titration process more precise, and improving the repeatability and accuracy of experimental results. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of an analytical titration device for pharmaceutical testing proposed in this utility model;

[0018] Figure 2 This is an unfolded view of an analytical titration apparatus for pharmaceutical testing proposed in this utility model;

[0019] Figure 3 A cross-sectional view of an analytical titration apparatus for pharmaceutical testing proposed in this utility model. Figure 1 ;

[0020] Figure 4 A cross-sectional view of an analytical titration apparatus for pharmaceutical testing proposed in this utility model. Figure 2 ;

[0021] Figure 5 for Figure 1 Internal structure diagram of the columns in the overall structural diagram.

[0022] Legend:

[0023] 1. Titration stage; 2. Lifting mechanism; 201. Handle; 202. Medium slider; 203. Rotating shaft; 204. Gear; 205. Connecting rod; 206. L-shaped plate; 207. Fixing plate; 208. L-shaped rod; 209. Rack; 2010. Ratchet; 2011. Spring 1; 2012. Pawl; 3. Quick release mechanism; 301. Square box; 302. T-shaped slider; 303. Spring 2; 304. Clamping rod; 305. Pull rod; 4. Medium groove; 5. Display screen; 6. Button; 7. Support base; 8. Beaker; 9. Column; 10. Tube clamp; 11. Burette; 12. Square hole; 13. Locking block. Detailed Implementation

[0024] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3 This utility model provides an embodiment of an analytical titration device for pharmaceutical testing, including a titration stage 1. The top of the titration stage 1 is connected to a column 9 via a locking block 13 to ensure that the titration stage 1 is firmly fixed during use and to prevent displacement due to external forces. Quick-release mechanisms 3 are equidistantly arranged on the rear side of the titration stage 1 and are engaged with the column 9. The quick-release mechanisms 3 make the connection between the titration stage 1 and the column 9 more convenient, allowing for quick disassembly or installation of the column 9, reducing experimental preparation time and improving experimental efficiency. A lifting mechanism 2 is provided inside the column 9 and is connected to a tube clamp 10. The lifting mechanism 2 can adjust the height of the burette 11 as needed to adapt to different experimental containers and ensure that the burette 11 always maintains the correct position during the experiment.

[0026] The quick-release mechanism 3 includes a square box 301, which is equidistantly arranged on the rear side of the titration stage 1. The square box 301 is the supporting part of the quick-release mechanism 3, ensuring the stability of the entire mechanism. T-shaped sliders 302 slide inside the square box 301. Springs 303 are provided between the T-shaped sliders 302 and the inner wall of the square box 301. The springs 303 play a buffering and restoring role, preventing the quick-release mechanism 3 from becoming excessively loose or unstable during use. The T-shaped sliders 302 are respectively provided with locking rods 304 and pull rods 305. The locking rods 304 and pull rods 305 provide disassembly and connection methods, ensuring the convenience of the quick-release mechanism 3. The locking rods 304 are engaged with the round holes on the outside of the column 9, and the locking rods 304 firmly fix the column 9 on the titration stage 1, enhancing the stability of the equipment.

[0027] A display screen 5 is installed at the front of the titration stand 1. The display screen 5 serves as the operating interface, providing real-time experimental information for easy data monitoring and adjustment by the operator. A button 6 is located near the side of the titration stand 1, serving as the control interface for easy operation of the apparatus by the experimenter. A beaker 8 is installed on the top of the titration stand 1. The beaker 8 is used to hold the solution required for the titration process. The top opening of the beaker 8 is directly opposite the outlet of the burette 11 to ensure that the titration liquid flows accurately into the beaker 8 and avoids splashing. An anti-slip pad is installed on the top of the titration stand 1 to enhance the stability of the equipment on the experimental platform, prevent slippage, and ensure that the equipment remains stable and does not move during the experiment. Support bases 7 are installed at the four corners of the bottom of the titration stand 1. The evenly distributed support bases 7 at the four corners provide additional stability, preventing the titration stand 1 from tilting and ensuring stability during the experiment.

[0028] Reference Figures 4-5 The lifting mechanism 2 includes a rotating shaft 203, which is rotatably connected inside the column 9. The rotating shaft 203, as the core component of the lifting mechanism 2, drives the lifting and lowering of the burette 11. A handle 201 is provided at the outer end of the rotating shaft 203 for easy rotation by the operator. A gear 204 is located in the middle of the rotating shaft 203. A medium-sized groove 4 is provided on the front side of the column 9, and a medium-sized slider 202 slides inside the medium-sized groove 4. A rack 209 is provided on the inner side of the medium-sized slider 202, and the rack 209 meshes with the gear 204. The gear 204 engages with the rack 209. The medium slider 202 is moved up and down to adjust the height of the burette 11. A connecting rod 205 is provided on the outside of the medium slider 202, and a tube clamp 10 is provided at the outer end of the connecting rod 205. The tube clamp 10 is provided with the burette 11. A locking component is also provided on the inside of the column 9. The connecting rod 205 serves as a connecting part between the slider and the tube clamp 10, connecting the tube clamp 10 to the slider to ensure that the burette 11 is always in the correct position during the adjustment process. The tube clamp 10 firmly holds the burette 11. The locking component is used to lock the position of the lifting mechanism 2 to prevent the position of the burette 11 from shifting after adjustment.

[0029] The locking assembly includes an L-shaped plate 206, which is disposed inside the column 9. The L-shaped plate 206 serves as the basic component of the locking mechanism and is fixed inside the column 9. A ratchet 2010 is disposed on the inner side of the rotating shaft 203, and the ratchet 2010 is engaged with a pawl 2012. The ratchet 2010, as a key part of the locking device, engages with the pawl 2012 to prevent accidental rotation of the rotating shaft 203. The end of the pawl 2012 away from the rotating shaft 203 is rotatably connected to the inner side of the L-shaped plate 206 via a screw. A fixing plate 207 is disposed inside the column 9. The fixed plate 207 ensures the stability of the pawl 2012. A spring 2011 is provided between the fixed plate 207 and the pawl 2012. The spring 2011 provides appropriate elasticity to ensure that the pawl 2012 can be stably engaged. An L-shaped rod 208 is provided on the top of the pawl 2012. The L-shaped rod 208 serves as an operating rod to facilitate the release of the pawl 2012. The L-shaped rod 208 passes through the square hole 12 of the column 9. By operating the L-shaped rod 208, the pawl 2012 can be effectively released, and the height of the burette 11 can be adjusted to ensure the stability of the burette 11 after adjustment.

[0030] Working principle: When the experimenter needs to perform titration analysis, the column 9 is first fixed to the top of the titration stage 1 by the locking block 13 to ensure the stability of the titration stage 1. Then, the quick-release mechanism 3 set on the rear side of the titration stage 1 allows the column 9 to be quickly disassembled or installed by locking the locking rod 304 with the round hole of the column 9, which facilitates the preparation work before the experiment. The quick-release mechanism 3 provides stable connection and disassembly force through the T-shaped slider 302 and the second spring 303 to ensure that the column 9 is firmly installed and quickly disassembled.

[0031] After preparation, turn handle 201 to rotate shaft 203, which in turn drives gear 204. Gear 204 meshes with rack 209, causing medium slider 202 to slide in medium groove 4, adjusting the height of burette 11 in clamp 10. At this time, burette 11 can be height adjusted according to experimental needs to accommodate test tubes or beakers 8 of different volumes and ensure the stability of burette 11. The outer side of medium slider 202 is connected to clamp 10 through connecting rod 205 to ensure that burette 11 is always in the correct position during adjustment. During adjustment, ratchet 2010 meshes with pawl 2012 to prevent burette 11 from sliding down unexpectedly after adjustment. When it is necessary to adjust burette 11 to move downward, release ratchet 2010 by moving L-shaped rod 208. Hold handle 201 firmly when releasing ratchet 2010, and release ratchet 2010 after moving to ensure that burette 11 is always kept at the accurate height.

[0032] After the titration process begins, the solution flows from the burette 11 into the beaker 8, and the opening of the beaker 8 is directly opposite the outlet of the burette 11, ensuring that the solution can flow into the beaker 8 accurately and avoid splashing. During the titration process, the height of the burette 11 remains unchanged to ensure the accuracy and stability of the reaction process. When the burette 11 reaches the required height, the internal locking component starts to work. The ratchet 2010 engages with the pawl 2012, and the position of the burette 11 is fixed by the pressure provided by the spring 2011, preventing accidental movement after height adjustment and ensuring the stability of the burette 11 during the titration process.

[0033] After titration, the experimenter can easily disassemble the equipment using the quick-release mechanism 3. First, loosen the lever 304 and disconnect the column 9 from the titration stage 1. The anti-slip pad on the top of the titration stage 1 increases the stability of the equipment during the experiment and prevents slippage. The support base 7 at the bottom provides additional stability through equidistant distribution, preventing the titration stage 1 from tilting and ensuring the accuracy of the experiment.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An analytical titration apparatus for pharmaceutical testing, comprising a titration stage (1), characterized in that: The top of the titration stage (1) is connected to the column (9) via a locking block (13). Quick-release mechanisms (3) are provided at equal intervals on the rear side of the titration stage (1), and the quick-release mechanisms (3) are engaged with the column (9). A lifting mechanism (2) is provided inside the column (9), and the lifting mechanism (2) is connected to the tube clamp (10). The lifting mechanism (2) includes a rotating shaft (203), which is rotatably connected to the inside of the column (9). A handle (201) is provided at the outer end of the rotating shaft (203). A gear (204) is provided in the middle of the rotating shaft (203). A medium groove (4) is provided on the front side of the column (9). A medium slider (202) slides inside the medium groove (4). A rack (209) is provided on the inner side of the medium slider (202), and the rack (209) meshes with the gear (204). A connecting rod (205) is provided on the outer side of the medium slider (202). A pipe clamp (10) is provided at the outer end of the connecting rod (205). A burette (11) is provided in the pipe clamp (10). A locking component is also provided on the inner side of the column (9).

2. The analytical titration apparatus for pharmaceutical testing according to claim 1, characterized in that: The locking assembly includes an L-shaped plate (206) disposed inside the column (9). A ratchet (2010) is disposed on the inner side of the rotating shaft (203). The ratchet (2010) is engaged with a pawl (2012). One end of the pawl (2012) away from the rotating shaft (203) is rotatably connected to the inner side of the L-shaped plate (206) by a screw. A fixing plate (207) is disposed inside the column (9). A spring (2011) is disposed between the fixing plate (207) and the pawl (2012). An L-shaped rod (208) is disposed on the top of the pawl (2012). The L-shaped rod (208) passes through the square hole (12) of the column (9).

3. The analytical titration apparatus for pharmaceutical testing according to claim 1, characterized in that: The quick-release mechanism (3) includes a square box (301), which is equidistantly arranged on the rear side of the titration stage (1). T-shaped sliders (302) slide inside each square box (301). Springs (303) are provided between the T-shaped sliders (302) and the inner wall of the square box (301). A locking rod (304) and a pull rod (305) are respectively provided on the outside of the T-shaped sliders (302), and the locking rods (304) are engaged with the round holes on the outside of the column (9).

4. The analytical titration apparatus for pharmaceutical testing according to claim 1, characterized in that: The titration stage (1) is equipped with a display screen (5) at the front and a button (6) on the side near the titration stage (1). A beaker (8) is provided on the top of the titration stage (1).

5. The analytical titration apparatus for pharmaceutical testing according to claim 4, characterized in that: The top opening of the beaker (8) is directly opposite the outlet of the burette (11).

6. The analytical titration apparatus for pharmaceutical testing according to claim 1, characterized in that: The titration stage (1) is equipped with an anti-slip pad on its top to enhance the stability of the equipment on the experimental table.

7. The analytical titration apparatus for pharmaceutical testing according to claim 1, characterized in that: The titration stage (1) has four support bases (7) at its bottom corners, and the support bases (7) are evenly distributed.

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