An experimental dissolver for pharmaceutical analysis

By combining a stirring rod driven by a servo motor and a conveying blade controlled by a stepper motor, the problem of low dissolution efficiency of large-volume lumpy materials in pharmaceutical analysis is solved, achieving rapid dissolution and reducing residue.

CN224293096UActive Publication Date: 2026-05-29CHANGSHA NO 4 HOSPITAL +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA NO 4 HOSPITAL
Filing Date
2025-04-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing pharmaceutical analytical dissolvers have low dissolution efficiency when processing large-volume lumps of materials, which can easily lead to material residue.

Method used

The combination of a stirring rod driven by a servo motor and a conveying blade controlled by a stepper motor, along with electric heating and a temperature sensor, enables automated stirring and pre-crushing of materials. The addition of a slant bar and pressure plate structure further improves dissolving efficiency.

Benefits of technology

It enables rapid dissolution of large-volume lumpy materials, reduces dissolution time and residue, and improves dissolution efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of experimental dissolver for pharmaceutical analysis, including box, the top of the box is fixedly connected with fixed frame, and it is set as ∩ type. The utility model belongs to the technical field of medical instrument, specifically a kind of experimental dissolver for pharmaceutical analysis, which solves the problem of residue of blocky material by directly pouring materials into a bottle during pharmaceutical analysis, using a glass rod or other rod for manual stirring and dissolving.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a laboratory dissolver for pharmaceutical analysis. Background Technology

[0002] Pharmacy mainly studies the sources, processing, properties, effects, analysis, identification, formulation, production, storage, and discovery of new drugs. Its main tasks are to continuously provide more effective drugs and improve drug quality, ensure drug safety, and treat or cure diseases in a way that minimizes harm and maximizes benefits for patients.

[0003] Many existing pharmaceutical analysis laboratory dissolvers involve directly pouring the material into the bottle and manually stirring it with a glass rod or other rod to dissolve it. However, for large-volume lumpy materials, they cannot be dissolved quickly, which can easily lead to the residue of lumpy materials. Utility Model Content

[0004] The technical problem this invention aims to solve is that in pharmaceutical analysis, materials are directly poured into a bottle and manually stirred and dissolved using rods such as glass rods. However, this method cannot quickly dissolve large-volume lumpy materials, which can easily lead to the residue of lumpy materials.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a laboratory dissolver for pharmaceutical analysis, comprising a housing, wherein a fixing frame is fixedly connected to the top of the housing in a U-shape, and further comprising...

[0006] A stirring and dissolving assembly, located on a fixed frame and inside a housing, includes a stirring rod. A servo motor is fixedly installed on the top wall of the fixed frame, and a disc is fixedly connected to the output end of the servo motor. The stirring rod is connected to the bottom of the disc via a universal joint. The stirring rod and the disc are eccentrically positioned. The lower end of the stirring rod penetrates through the center of the top of the housing and is located inside the housing. The connection between the stirring rod and the housing is via a universal joint. A ring of electric heating elements is fixedly connected to the inner wall of the housing.

[0007] The feeding assembly is located on one side of the housing and includes a feeding cylinder. The feeding cylinder is fixedly connected to the side wall of the housing and communicates with the inside of the housing. The top side of the feeding cylinder is open. A stepper motor is fixedly installed on the outer wall of the feeding cylinder, and its output end is located inside the feeding cylinder. The output end of the stepper motor is fixedly connected to a conveying blade.

[0008] Furthermore, a vertical cylinder is fixedly connected to the top of the feed cylinder, and the vertical cylinder is connected to the feed cylinder through an opening. A feeding pipe connected to the vertical cylinder is fixedly connected to one side of the vertical cylinder. An electric push rod is vertically and fixedly connected to the top of the vertical cylinder. The free end of the electric push rod is located inside the vertical cylinder, and a pressure plate is fixedly connected to the free end of the electric push rod.

[0009] Furthermore, a diagonal rod is fixedly connected to the middle of the stirring rod, the bottom wall of the inner chamber is inclined, and a temperature sensor is provided at the top of the inner chamber.

[0010] Furthermore, a controller is fixedly installed on the mounting frame, and the servo motor, stepper motor, electric push rod, electric heating element and temperature sensor are all electrically connected to the controller.

[0011] Furthermore, a discharge pipe is provided at the bottom of one side of the box, and an exhaust pipe is provided at the top of one side of the box.

[0012] Furthermore, a reinforcing rod is fixedly connected between the feed cylinder and the housing, and the bottom of the feed tube is inclined.

[0013] The beneficial effects of this utility model after adopting the above structure are as follows:

[0014] (1) The electric heating element heats the temperature inside the box and monitors the internal temperature through a temperature sensor until it reaches the appropriate temperature.

[0015] (2) The rotation of the conveying blades can add materials into the box at a uniform speed. The conveying blades can crush larger materials, reduce the dissolution time in the later stage, and can also move the pressure plate down when the material is added to avoid larger materials from staying inside the vertical cylinder.

[0016] (3) The uniform rotation of the disc drives the stirring rod to rotate inside the box, and the inclined rod allows the material to flow continuously, reducing the dissolution time. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the overall structure of a laboratory dissolver for pharmaceutical analysis proposed in this utility model;

[0019] Figure 2 This is a front view of a laboratory dissolver for pharmaceutical analysis proposed in this utility model;

[0020] Figure 3 A cross-section of a laboratory dissolver for pharmaceutical analysis proposed in this utility model. Figure 1 ;

[0021] Figure 4 A cross-section of a laboratory dissolver for pharmaceutical analysis proposed in this utility model. Figure 2 ;

[0022] Figure 5 This is a partial cross-sectional view of an experimental dissolver for pharmaceutical analysis proposed in this utility model.

[0023] In the attached diagram: 1. Box body, 2. Fixing frame, 3. Stirring rod, 4. Servo motor, 5. Disc, 6. Reinforcing rod, 7. Electric heating element, 8. Feed cylinder, 9. Stepper motor, 10. Conveying blade, 11. Vertical cylinder, 12. Feeding pipe, 13. Electric push rod, 14. Pressure plate, 15. Inclined rod, 16. Controller, 17. Temperature sensor, 18. Discharge pipe, 19. Exhaust pipe. Detailed Implementation

[0024] like Figure 1-2 As shown, a pharmaceutical analysis experimental dissolver includes a housing 1 with an inclined bottom wall, a discharge pipe 18 at the bottom of one side of the housing 1, an exhaust pipe 19 at the top of one side of the housing 1, a fixed frame 2 fixedly connected to the top of the housing 1 in a U-shape, and also includes a stirring and dissolving assembly and a feeding assembly.

[0025] like Figure 1-4 As shown, to improve the dissolution rate of materials, a stirring and dissolving assembly is installed on the fixed frame 2 and inside the box 1, including a stirring rod 3. A servo motor 4 is fixedly installed on the top wall of the fixed frame 2. A disc 5 is fixedly connected to the output end of the servo motor 4. The stirring rod 3 is connected to the bottom of the disc 5 through a universal joint. The stirring rod 3 and the disc 5 are eccentrically positioned. The lower end of the stirring rod 3 passes through the center of the top of the box 1 and is located inside the box 1. The connection between the stirring rod 3 and the box 1 is through a universal joint. A ring of electric heating elements 7 is fixedly connected to the inner wall of the box 1. A diagonal rod 15 is fixedly connected to the middle of the stirring rod 3. A temperature sensor 17 is installed at the top of the box 1. The electric heating elements 7 heat the temperature inside the box 1. The servo motor 4 makes the disc 5 rotate at a uniform speed. The rotation of the disc 5 drives the stirring rod 3 to rotate inside the box 1. With the help of the diagonal rod 15, the materials flow continuously, thereby increasing the dissolution efficiency.

[0026] like Figure 1-5As shown, to reduce the addition of large pieces of material, a feeding assembly is located on one side of the housing 1, including a feeding cylinder 8. The feeding cylinder 8 is fixedly connected to the side wall of the housing 1 and communicates with the interior of the housing 1. A reinforcing rod 6 is fixedly connected between the feeding cylinder 8 and the housing 1. The top of the feeding cylinder 8 is open on one side. A stepper motor 9 is fixedly installed on the outer wall of the feeding cylinder 8, and its output end is located inside the feeding cylinder 8. A conveying blade 10 is fixedly connected to the output end of the stepper motor 9. A vertical cylinder 11 is fixedly connected to the top of the feeding cylinder 8. The vertical cylinder 11 communicates with the feeding cylinder 8 through the opening. One side of the vertical cylinder 11 is fixedly connected to... A feeding pipe 12 is connected to the vertical cylinder 11. The bottom of the feeding pipe 12 is inclined. The top of the vertical cylinder 11 is vertical and fixedly connected to an electric push rod 13. The free end of the electric push rod 13 is located inside the vertical cylinder 11. The free end of the electric push rod 13 is fixedly connected to a pressure plate 14. The material is conveyed laterally under the rotation of the conveying paddle 10. During the process, the conveying paddle 10 can crush larger materials, reduce the subsequent dissolution time, and when the material is added, the electric push rod 13 can be controlled to extend and the pressure plate 14 can be moved down to press down the material and prevent larger materials from staying inside the vertical cylinder 11.

[0027] The controller 16 is fixedly installed on the mounting bracket 2. The servo motor 4, stepper motor 9, electric push rod 13, electric heating element 7 and temperature sensor 17 are all electrically connected to the controller 16.

[0028] In practical use, the electric heating element 7 is turned on to heat the temperature inside the box 1. The internal temperature is monitored by the temperature sensor 17 until a suitable temperature is reached. The material is then added through the feeding pipe 12. The stepper motor 9 is turned on, and the rotation of the conveying blade 10 can add the material into the box 1 at a uniform speed. During the horizontal conveying process, the conveying blade 10 can crush larger materials, reducing the subsequent dissolution time. When the material is added, the electric push rod 13 can be extended to move the pressure plate 14 downward, pressing down the material and preventing larger materials from staying inside the vertical cylinder 11. After the material enters the box 1, the servo motor 4 is turned on to make the disc 5 rotate at a uniform speed. The rotation of the disc 5 drives the stirring rod 3 to rotate inside the box 1. With the help of the inclined rod 15, the material can flow continuously, reducing the dissolution time. The exhaust pipe 19 can discharge the gas generated during the dissolution process. Finally, the dissolved material is discharged through the discharge pipe 18 under the guidance of the bottom wall of the box 1.

[0029] 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. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pharmaceutical analysis experimental dissolver, comprising a housing (1), wherein a fixing frame (2) is fixedly connected to the top of the housing (1) and is arranged in a U-shape, characterized in that: Also includes The stirring and dissolving assembly is located on the fixed frame (2) and inside the box (1), including a stirring rod (3). A servo motor (4) is fixedly installed on the top wall of the fixed frame (2). A disc (5) is fixedly connected to the output end of the servo motor (4). The stirring rod (3) is connected to the bottom of the disc (5) through a universal joint. The stirring rod (3) and the disc (5) are eccentrically arranged. The lower end of the stirring rod (3) passes through the center of the top of the box (1) and is located inside the box (1). The connection between the stirring rod (3) and the box (1) is connected through a universal joint. A ring of electric heating elements (7) is fixedly connected to the inner wall of the box (1). The feeding assembly is located on one side of the housing (1) and includes a feeding cylinder (8). The feeding cylinder (8) is fixedly connected to the side wall of the housing (1) and communicates with the inside of the housing (1). The top side of the feeding cylinder (8) is open. A stepper motor (9) is fixedly installed on the outer wall of the feeding cylinder (8), and its output end is located inside the feeding cylinder (8). The output end of the stepper motor (9) is fixedly connected to a conveying blade (10).

2. The experimental dissolver for pharmaceutical analysis according to claim 1, characterized in that: The top of the feed cylinder (8) is fixedly connected to a vertical cylinder (11), which is connected to the feed cylinder (8) through an opening. A feeding pipe (12) is fixedly connected to one side of the vertical cylinder (11). The top of the vertical cylinder (11) is vertical and fixedly connected to an electric push rod (13). The free end of the electric push rod (13) is located inside the vertical cylinder (11), and a pressure plate (14) is fixedly connected to the free end of the electric push rod (13).

3. The experimental dissolver for pharmaceutical analysis according to claim 1, characterized in that: The stirring rod (3) is fixedly connected to the middle of the inclined rod (15), the bottom wall of the box (1) is inclined, and the top of the box (1) is provided with a temperature sensor (17).

4. The experimental dissolver for pharmaceutical analysis according to claim 2, characterized in that: The controller (16) is fixedly installed on the fixed frame (2). The servo motor (4), stepper motor (9), electric push rod (13), electric heating element (7) and temperature sensor (17) are all electrically connected to the controller (16).

5. A laboratory dissolver for pharmaceutical analysis according to any one of claims 1-4, characterized in that: The bottom side of the box (1) is provided with a discharge pipe (18), and the top side of the box (1) is provided with an exhaust pipe (19).

6. The experimental dissolver for pharmaceutical analysis according to claim 2, characterized in that: A reinforcing rod (6) is fixedly connected between the feed cylinder (8) and the box (1), and the bottom of the feed pipe (12) is inclined.