A medicine liquid concentration quality control pipette type sampling device

Abstract

The utility model relates to the technical field of medicine quality detection, concretely to a medicine liquid concentration quality control pipette type sampling device, including casing, clamping groove and pipette body, the casing side symmetry has opened clamping groove, the casing upper end is connected with adjusting mechanism, the adjusting mechanism inboard is provided with extrusion mechanism, the casing inboard is provided with clamping mechanism, the clamping mechanism clamps and has the pipette body, the pipette body sets up in the casing inboard. The utility model is provided with adjusting mechanism, in the use process, rotates screw pipe to be able to drive extrusion mechanism and moves along the casing axial up and down, and the medicine container of different liquid level height is adapted easily, when adjusting to the appropriate height, rotates the limit ring and makes the soft rubber ring closely adhere to the casing upper surface, to this avoid the height accidental change in the sampling process.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical quality testing technology, and in particular to a dropper-type sampling device for controlling the concentration and quality of liquid pharmaceuticals. Background Technology

[0002] In the field of pharmaceutical production and quality testing, the accurate control of liquid drug concentration is a key link in ensuring drug efficacy and medication safety. Sampling is required before testing the liquid drug concentration. Dropper sampling has become one of the commonly used sampling methods in laboratories and production lines due to its simple operation and controllable sampling volume.

[0003] Existing dropper sampling devices for controlling the concentration of liquid drugs are prone to shaking or shifting due to external force during sampling, which can change the position of the sampling port and cause deviations in the sampling volume, affecting the accuracy of the test data. Furthermore, the current sampling method relies on manual squeezing of the dropper head, and the squeezing force and reset speed depend entirely on the operator's experience. This is not only labor-intensive, but also prone to inconsistencies in the sampling volume due to differences in human operation, making it difficult to ensure the stability of batch sampling.

[0004] Therefore, this utility model proposes a dropper-type sampling device for controlling the concentration and quality of liquid medicines. Utility Model Content

[0005] To overcome the common problem that dropper-type sampling devices used for controlling the concentration and quality of liquid medicines are prone to shaking or shifting due to external force during the sampling process, resulting in changes in the sampling port position, and thus causing deviations in the sampling amount and affecting the accuracy of the test data.

[0006] The technical solution of this utility model is as follows: a dropper sampling device for controlling the concentration and quality of liquid medicine, comprising a shell, a slot and a dropper body. The shell has symmetrical slots on its side. An adjustment mechanism is threadedly connected to the upper end of the shell. A squeezing mechanism is provided inside the adjustment mechanism. A clamping mechanism is provided inside the shell. The clamping mechanism clamps the dropper body, and the dropper body is located inside the shell.

[0007] Preferably, the adjustment mechanism includes a threaded tube, a clamping plate, a limiting ring, and a soft rubber ring. The upper end of the housing is threadedly connected to the threaded tube, the clamping plate is provided above the threaded tube, the side of the threaded tube is threadedly connected to the limiting ring, and the lower end of the limiting ring is connected to the soft rubber ring.

[0008] Preferably, the limiting ring is disposed above the housing, and the soft rubber ring is attached to the upper surface of the housing.

[0009] Preferably, the extrusion mechanism includes a cylindrical groove, a circular plate, a slide rod, a pressure rod, and a support spring. The cylindrical groove is provided inside the threaded tube, and the circular plate is slidably connected inside the cylindrical groove. The slide rod is connected to the upper end of the circular plate, and the pressure rod is connected to the lower end of the circular plate. A support spring is provided on the side of the pressure rod.

[0010] Preferably, the slide rod is slidably connected to the upper end of the threaded tube, the lower end of the pressure rod is slidably connected to the lower end of the threaded tube, the support spring is disposed inside the cylindrical groove, one end of the support spring is connected to the lower wall of the circular plate, and the other end of the support spring is connected to the bottom surface inside the cylindrical groove.

[0011] Preferably, the clamping mechanism includes a connecting rod, a threaded rod, a square rod, a clamping plate, and a limiting strip. The connecting rod and the threaded rod are provided inside the slot on one side, and two connecting rods are provided inside the slot on the other side. Two square rods are slidably arranged on the side of the connecting rod. The square rods are threadedly connected to the threaded rods. The square rods are connected to the clamping plates. There are two clamping plates. The dropper body is arranged between the two clamping plates. A limiting strip is provided on the side of the clamping plate.

[0012] The beneficial effects of this utility model are: 1. It is equipped with an adjustment mechanism. During use, rotating the threaded tube will drive the squeezing mechanism to move up and down along the shell axis, easily adapting to medicine containers with different liquid levels. After adjusting to the appropriate height, rotating the limit ring will make the soft rubber ring fit tightly against the upper surface of the shell, thereby avoiding unexpected changes in height during sampling. 2. Equipped with a squeezing mechanism, the device automatically resets during use via a support spring. When the sliding rod is pressed down, the circular plate drives the pressure rod to squeeze the dropper head, expelling air and compressing the support spring. After releasing the sliding rod, the support spring drives the circular plate, sliding rod, and pressure rod to reset, allowing the dropper head to naturally return to its original position and draw in liquid. The entire process eliminates the need for manual control of the squeezing force and reset speed, reducing operator workload and ensuring consistent squeezing and reset speed of the dropper head for each sampling. This minimizes the impact of human error on the sample volume and improves the efficiency and stability of batch sampling. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention. Figure 2 The diagram shown is a three-dimensional structural schematic of the adjustment mechanism of this utility model; Figure 3 The diagram shown is a three-dimensional structural schematic of the extrusion mechanism of this utility model; Figure 4 The diagram shown is a three-dimensional structural schematic of the clamping mechanism of this utility model. Figure 5The diagram shown is a three-dimensional structural schematic of the limiting strip of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Slot; 3. Adjustment mechanism; 31. Threaded tube; 32. Clamping plate; 33. Limiting ring; 34. Soft rubber ring; 4. Extrusion mechanism; 41. Cylindrical groove; 42. Circular plate; 43. Slide rod; 44. Pressure rod; 45. Support spring; 5. Clamping mechanism; 51. Connecting rod; 52. Threaded rod; 53. Square rod; 54. Clamping plate; 55. Limiting strip; 6. Dropper body. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5 This utility model provides a technical solution: a dropper sampling device for controlling the concentration and quality of liquid medicine, including a shell 1, a slot 2 and a dropper body 6. The slot 2 is symmetrically opened on the side of the shell 1. An adjustment mechanism 3 is threadedly connected to the upper end of the shell 1. A squeezing mechanism 4 is provided inside the adjustment mechanism 3. A clamping mechanism 5 is provided inside the shell 1. The clamping mechanism 5 clamps the dropper body 6. The dropper body 6 is located inside the shell 1.

[0017] The adjusting mechanism 3 includes a threaded tube 31, a clamping plate 32, a limiting ring 33, and a soft rubber ring 34. The threaded tube 31 is threadedly connected to the upper end of the housing 1. The clamping plate 32 is set above the threaded tube 31. The limiting ring 33 is threadedly connected to the side of the threaded tube 31. The soft rubber ring 34 is connected to the lower end of the limiting ring 33. The limiting ring 33 is set above the housing 1. The soft rubber ring 34 is in contact with the upper surface of the housing 1. According to the required amount of liquid medicine to be sampled, the threaded tube 31 is rotated, so that the threaded tube 31 moves up and down along the axial direction of the housing 1. When the threaded tube 31 moves to a suitable sampling height, the limiting ring 33 on the side of the threaded tube 31 is rotated, so that the soft rubber ring 34 at the lower end of the limiting ring 33 is tightly in contact with the upper surface of the housing 1. At this time, the limiting ring 33 and the soft rubber ring 34 work together to restrict the threaded tube 31 from moving further, thereby fixing the sampling height of the squeezing mechanism 4 and avoiding the impact of height changes on sampling accuracy during the sampling process.

[0018] The extrusion mechanism 4 includes a cylindrical groove 41, a circular plate 42, a slide rod 43, a pressure rod 44, and a support spring 45. The cylindrical groove 41 is located inside the threaded tube 31. The circular plate 42 is slidably connected inside the cylindrical groove 41. The slide rod 43 is connected to the upper end of the circular plate 42, and the pressure rod 44 is connected to the lower end of the circular plate 42. A support spring 45 is located on the side of the pressure rod 44. The slide rod 43 is slidably connected to the upper end of the threaded tube 31, and the lower end of the pressure rod 44 is slidably connected to the lower end of the threaded tube 31. The support spring 45 is located inside the cylindrical groove 41. One end of the support spring 45 is connected to the lower wall of the circular plate 42, and the other end is connected to the bottom surface inside the cylindrical groove 41. Pressing down on the slide rod 43 causes the circular plate 42 to move within the cylindrical groove 41 inside the threaded tube 31. As the circular plate 42 slides downwards, it compresses the support spring 45. Simultaneously, the circular plate 42 moves downwards, causing the pressure rod 44 to move downwards in sync. During the movement of the pressure rod 44, it squeezes the rubber head of the dropper body 6, thereby expelling the air inside the dropper body 6. Then, the lower end of the dropper body 6 is inserted into the liquid medicine to be sampled, and the slide rod 43 is slowly released. At this time, the compressed support spring 45 pushes the circular plate 42 to slide upwards. The circular plate 42 drives the slide rod 43 and the pressure rod 44 to move upwards in sync. At this time, the squeezing force of the pressure rod 44 on the rubber head of the dropper body 6 disappears, and the rubber head of the dropper body 6 returns to its original shape under its own elasticity. At the same time, a negative pressure is formed inside, drawing the liquid medicine into the dropper body 6, thereby completing the sampling operation.

[0019] The clamping mechanism 5 includes a connecting rod 51, a threaded rod 52, a square rod 53, a clamping plate 54, and a limiting strip 55. One side of the slot 2 has a connecting rod 51 and a threaded rod 52, and the other side of the slot 2 has two connecting rods 51. Two square rods 53 are slidably arranged on the side of the connecting rods 51. The square rods 53 are threadedly connected to the threaded rods 52. The square rods 53 are connected to the clamping plates 54. There are two clamping plates 54. The dropper body 6 is arranged between the two clamping plates 54. The clamping plate 54 has a limiting strip 55 on its side. The dropper body 6 to be used is placed inside the housing 1, so that the dropper body 6 is between the two clamping plates 54. Then, the threaded rod 52 is rotated. The rotation of the threaded rod 52 will drive the two square rods 53 to slide along the connecting rod 51. At the same time, the square rods 53 slide and drive the clamping plates 54 to move synchronously. When the two clamping plates 54 are tightly attached to the outer wall of the dropper body 6, the clamping and fixing of the dropper body 6 is completed.

[0020] Working principle: According to Figures 4 to 5First, place the dropper body 6 to be used inside the housing 1, so that the dropper body 6 is between the two clamping plates 54. Then rotate the threaded rod 52. The rotation of the threaded rod 52 will drive the two square rods 53 to slide along the connecting rod 51. While the square rods 53 are sliding, they will drive the clamping plates 54 to move synchronously. When the two clamping plates 54 are tightly attached to the outer wall of the dropper body 6, the clamping and fixing of the dropper body 6 is completed. At the same time, the limiting strip 55 set on the side of the clamping plate 54 can limit the dropper body 6 from shifting during the sampling process, ensuring the stability of the clamping without affecting the sampling. according to Figures 1 to 2 Depending on the required amount of liquid medicine to be sampled, rotate the threaded tube 31 to move it up and down along the axis of the housing 1. When the threaded tube 31 moves to a suitable sampling height, rotate the limiting ring 33 on the side of the threaded tube 31 so that the soft rubber ring 34 at the lower end of the limiting ring 33 fits tightly against the upper surface of the housing 1. At this time, the limiting ring 33 and the soft rubber ring 34 work together to restrict the threaded tube 31 from continuing to move, thereby fixing the sampling height of the extrusion mechanism 4 and avoiding the impact of height changes on sampling accuracy during the sampling process. according to Figure 3 Press down on the slide bar 43. The slide bar 43 drives the circular plate 42 to slide downward in the cylindrical groove 41 inside the threaded tube 31. When the circular plate 42 slides downward, it compresses the support spring 45. At the same time, the circular plate 42 drives the pressure rod 44 to move downward in sync. During the movement of the pressure rod 44, it squeezes the rubber head of the dropper body 6 to expel the air inside the dropper body 6. Then, insert the lower end of the dropper body 6 into the liquid medicine to be sampled. Slowly release the slide bar 43. At this time, the compressed support spring 45 pushes the circular plate 42 to slide upward. The circular plate 42 drives the slide bar 43 and the pressure rod 44 to move upward in sync. At this time, the squeezing force of the pressure rod 44 on the rubber head of the dropper body 6 disappears. The rubber head of the dropper body 6 returns to its original shape under its own elasticity. At the same time, a negative pressure is formed inside, which draws the liquid medicine into the dropper body 6, thus completing the sampling operation.

[0021] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dropper-type sampling device for controlling the concentration and quality of liquid medicines, comprising a housing (1), a slot (2), and a dropper body (6), characterized in that: The shell (1) has symmetrical slots (2) on its side. The upper end of the shell (1) is threaded with an adjustment mechanism (3). The inner side of the adjustment mechanism (3) is provided with a squeezing mechanism (4). The inner side of the shell (1) is provided with a clamping mechanism (5). The clamping mechanism (5) clamps the dropper body (6). The dropper body (6) is located inside the shell (1).

2. The dropper-type sampling device for controlling the concentration and quality of pharmaceutical liquids according to claim 1, characterized in that: The adjustment mechanism (3) includes a threaded tube (31), a clamping plate (32), a limiting ring (33) and a soft rubber ring (34). The upper end of the housing (1) is threaded with the threaded tube (31), the clamping plate (32) is provided above the threaded tube (31), the side of the threaded tube (31) is threaded with the limiting ring (33), and the lower end of the limiting ring (33) is connected with the soft rubber ring (34).

3. The dropper-type sampling device for controlling the concentration and quality of pharmaceutical liquids according to claim 2, characterized in that: The limiting ring (33) is disposed above the housing (1), and the soft rubber ring (34) is attached to the upper surface of the housing (1).

4. A dropper-type sampling device for controlling the concentration and quality of pharmaceutical liquids according to claim 2, characterized in that: The extrusion mechanism (4) includes a cylindrical groove (41), a circular plate (42), a slide rod (43), a pressure rod (44), and a support spring (45). The threaded tube (31) has a cylindrical groove (41) inside. A circular plate (42) is slidably connected inside the cylindrical groove (41). A slide rod (43) is connected to the upper end of the circular plate (42). A pressure rod (44) is connected to the lower end of the circular plate (42). A support spring (45) is provided on the side of the pressure rod (44).

5. A dropper-type sampling device for controlling the concentration and quality of pharmaceutical liquids according to claim 4, characterized in that: The slide rod (43) is slidably connected to the upper end of the threaded tube (31), the lower end of the pressure rod (44) is slidably connected to the lower end of the threaded tube (31), the support spring (45) is set inside the cylindrical groove (41), one end of the support spring (45) is connected to the lower wall of the circular plate (42), and the other end of the support spring (45) is connected to the bottom surface inside the cylindrical groove (41).

6. A dropper-type sampling device for controlling the concentration and quality of pharmaceutical liquids according to claim 1, characterized in that: The clamping mechanism (5) includes a connecting rod (51), a threaded rod (52), a square rod (53), a clamping plate (54), and a limiting strip (55). The connecting rod (51) and the threaded rod (52) are provided inside the slot (2) on one side, and two connecting rods (51) are provided inside the slot (2) on the other side. Two square rods (53) are slidably provided on the side of the connecting rod (51). The square rods (53) are threadedly connected to the threaded rods (52). The square rods (53) are connected to the clamping plate (54). There are two clamping plates (54). The dropper body (6) is provided between the two clamping plates (54). The limiting strip (55) is provided on the side of the clamping plate (54).

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