A precise dosing salt dissolving device

Abstract

The application relates to the technical field of medical and pharmaceutical equipment, in particular to a salt dissolving device for precise medicine dispensing, which comprises a tank body, a rotating shaft one is rotationally arranged at the lower end of the tank body, a rotating shaft two is rotationally arranged at the upper end of the tank body, a driving source is arranged at the power end of the rotating shaft one and the rotating shaft two, and a connecting rod is arranged between the rotating shaft one and the rotating shaft two. The compound stirring structure of the double rotating shafts matched with the inclined connecting rod is combined with a driving assembly and a rotating assembly to realize multidimensional movement of a stirring piece, the combined stirring piece design of the frame-shaped stirring plate and the inner stirring blade is matched, and meanwhile, the ultrasonic vibrator at the bottom of the tank body is supplemented, so that the limitation of single circumferential stirring of the traditional salt dissolving device is broken, the stirring range covers the whole tank body, salt particle deposition is obviously reduced, the mixing and dissolving efficiency of the salt reagent and the solvent is improved, the problem of local uneven concentration is avoided, and the overall consistency of the solution concentration is ensured.

Description

Technical Field

[0001] This application relates to the technical field of medical and pharmaceutical equipment, and in particular to a salt dissolving device for precise drug dispensing. Background Technology

[0002] In fields such as medical pharmaceuticals and biochemicals, where the precision of drug preparation is extremely important, salt dissolving devices are one of the core pieces of equipment for achieving precise mixing and dissolution of salt reagents and solvents. The uniformity of dissolution and the accuracy of concentration control directly affect the quality of subsequent drug preparation and the effectiveness of use.

[0003] However, traditional salt dissolving devices have many shortcomings in practical applications. The stirring method is simple, and the stirring paddle can usually only move in a circle along a fixed axis. The stirring range is limited to the middle area of ​​the tank. It is difficult to effectively disturb the salt particles in the corners and bottom of the tank, resulting in salt deposition, uneven local concentration of the solution, and affecting the accuracy of drug dosing.

[0004] Therefore, in view of the shortcomings of existing salt dissolving devices in terms of stirring uniformity, there is an urgent need to develop a salt dissolving device with precise control capabilities and efficient dissolution effect to meet the stringent requirements of precise drug dispensing scenarios. Utility Model Content

[0005] To address the problem of salt deposition and uneven local concentration in the solution caused by a single stirring method, this application provides a salt dissolving device for precise drug preparation.

[0006] This application provides a precision dispensing salt device, which adopts the following technical solution: it includes a tank, a rotating shaft rotatably mounted at the lower end of the tank, and a rotating shaft rotatably mounted at the upper end of the tank. Both the rotating shaft 1 and the rotating shaft 2 are equipped with a drive source. A connecting rod is provided between the rotating shaft 1 and the rotating shaft 2. The connecting rod is inclined. A drive component is provided between the lower end of the connecting rod and the rotating shaft 1, and a rotating component is provided between the upper end of the connecting rod and the rotating shaft 2. A stirring element is provided on the connecting rod, and a controller is installed on the front side of the tank.

[0007] Optionally, the drive assembly includes a connecting plate disposed inside the tank body. One end of the connecting plate is fixedly connected to the rotating shaft, and a connecting ball is rotatably mounted on the other end of the connecting plate. The connecting ball is fixedly connected to the lower end of the connecting rod.

[0008] Optionally, the rotating assembly includes a U-shaped frame one, which is installed at the lower end of the rotating shaft two. The opening of the U-shaped frame one faces downward. A connecting block is provided on the inner side of the U-shaped frame one. The two sides of the connecting block are rotatably connected to the U-shaped frame one through a connecting shaft one. A connecting shaft two is installed on the other two sides of the connecting block. A U-shaped frame two is provided below the connecting block. The two ends of the U-shaped frame two are rotatably connected to the corresponding connecting shaft two. The lower end of the U-shaped frame two is fixedly connected to the upper end of the connecting rod.

[0009] Optionally, the stirring component includes a stirring plate, which is frame-shaped, and both ends of the stirring plate are fixedly mounted on the connecting rod.

[0010] Optionally, the inner side of the stirring plate is provided with stirring blades, which are fixedly installed on the connecting rod.

[0011] Optionally, the upper end of the tank is equipped with an inlet pipe and a feed port, the lower end of the tank is equipped with an outlet pipe, a metering pump is installed on the inlet pipe and the outlet pipe, and a feeding tank is installed on the feed port.

[0012] Optionally, a concentration sensor and a level sensor are installed inside the tank. The concentration sensor is located at the bottom of the tank, and the level sensor is installed on the inner side wall of the tank. Both the concentration sensor and the level sensor are connected to the controller via signal cables.

[0013] Optionally, an ultrasonic vibrator is installed on the outer side of the bottom of the tank, with at least two ultrasonic vibrators evenly distributed around the bottom of the tank and electrically connected to the controller; the inner side wall of the tank is coated with a polytetrafluoroethylene anti-stick coating.

[0014] In summary, this application includes the following beneficial technical effects: 1. This utility model adopts a composite stirring structure with dual rotating shafts and inclined connecting rods, combining a drive component and a rotating component to achieve multi-dimensional movement of the stirring element. It is equipped with a combined stirring element design of frame-shaped stirring plate and inner stirring blades, and is supplemented by an ultrasonic vibrator at the bottom of the tank. This breaks through the limitation of the single circumferential stirring of traditional salt dissolving devices. The stirring range covers the entire interior of the tank, significantly reducing salt particle deposition. It improves the mixing and dissolution efficiency of salt reagents and solvents, avoids the problem of uneven local concentration, and ensures the overall consistency of solution concentration.

[0015] 2. This utility model achieves precise delivery of raw materials and solvents through metering pumps on the inlet and outlet pipes. Combined with concentration sensors, level sensors, and controllers inside the tank, it forms a closed-loop control system that can monitor the solution status in real time and dynamically adjust the feeding and stirring parameters. At the same time, the polytetrafluoroethylene anti-stick coating on the inside of the tank further reduces raw material adhesion loss, and the ultrasonic vibrator assists in enhancing the dissolution effect, thereby improving the control accuracy of the drug concentration. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a cross-sectional view of an embodiment of this application; Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of point A in the middle; Figure 4 This is an embodiment of the present application. Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the connecting rod connection in an embodiment of this application.

[0017] Reference numerals: 1. Tank body; 2. Controller; 3. Inlet pipe; 4. Outlet pipe; 5. Metering pump; 6. Feed inlet; 7. Feeding tank; 8. Rotating shaft one; 9. Rotating shaft two; 10. Drive source; 11. U-shaped frame one; 12. Connecting block; 13. Connecting shaft one; 14. Connecting shaft two; 15. U-shaped frame two; 16. Connecting rod; 17. Stirring plate; 18. Stirring blade; 19. Connecting plate; 20. Connecting ball. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0019] This application discloses a salt dissolving device for precise drug dispensing. For example... Figure 1 , Figure 2 As shown, the tank includes a tank body 1, which is made of 304 stainless steel. The upper end of the tank body 1 is equipped with an inlet pipe 3 and a feed port 6, and the lower end of the tank body 1 is equipped with an outlet pipe 4. A metering pump 5 is installed on the inlet pipe 3 and the outlet pipe 4. The metering pump 5 is a new Doughty ND series electromagnetic metering pump. A feeding tank 7 is installed on the feed port 6. The feeding tank 7 is made of transparent polycarbonate and is equipped with an electromagnetic feeding valve. A rotating shaft 8 is rotatably installed at the lower end of the tank body 1.

[0020] See Figure 2 , Figure 3 , Figure 5As shown, a rotating shaft 9 is rotatably mounted on the upper end of the tank body 1. Sealing rings are provided between the rotating shaft 8, the rotating shaft 9 and the tank body 1. A drive source 10 is provided at the power end of the rotating shaft 8 and the rotating shaft 9. For the drive source 10, such as the servo motor commonly found in the market, the specific structure and working principle are not described in detail or limited here. It is equipped with a planetary reducer. A connecting rod 16 is provided between the rotating shaft 8 and the rotating shaft 9. The connecting rod 16 is inclined and is made of 304 stainless steel seamless tube. A drive assembly is provided between the lower end of the connecting rod 16 and the rotating shaft 8. The drive assembly includes a connecting plate 19. The connecting plate 19 is located inside the tank body 1, and one end of the connecting plate 19 is fixedly connected to the rotating shaft 8.

[0021] See Figure 2 , Figure 4 , Figure 5 As shown, a connecting ball 20 is rotatably mounted on the other end of the connecting plate 19. The connecting ball 20 is fixedly connected to the lower end of the connecting rod 16. A rotating assembly is provided between the upper end of the connecting rod 16 and the second rotating shaft 9. The rotating assembly includes a U-shaped frame 11, which is installed on the lower end of the second rotating shaft 9. The opening of the U-shaped frame 11 faces downward. A connecting block 12 is provided on the inner side of the U-shaped frame 11. The two sides of the connecting block 12 are rotatably connected to the U-shaped frame 11 through a connecting shaft 13. A second connecting shaft 14 is installed on the other two sides of the connecting block 12.

[0022] See Figure 2 , Figure 5 As shown, a U-shaped frame 15 is provided below the connecting block 12. The opening of the U-shaped frame 15 faces upward. Both ends of the U-shaped frame 15 are rotatably connected to the corresponding connecting shaft 14. The lower end of the U-shaped frame 15 is fixedly connected to the upper end of the connecting rod 16. A stirring component is provided on the connecting rod 16. The stirring component includes a stirring plate 17. The stirring plate 17 is frame-shaped. Both ends of the stirring plate 17 are fixedly installed on the connecting rod 16. A stirring blade 18 is provided on the inner side of the stirring plate 17. The stirring blade 18 is spiral-shaped and fixedly installed on the connecting rod 16. A controller 2 is installed on the front side of the tank 1. An ultrasonic vibrator is installed on the outer side of the bottom of the tank 1.

[0023] See Figure 1 , Figure 2 As shown, at least two ultrasonic vibrators are evenly distributed around the bottom circumference of the tank 1. The ultrasonic vibrators are 20kHz high-frequency vibrators and are electrically connected to the controller 2. The inner wall of the tank 1 is coated with a polytetrafluoroethylene non-stick coating. A concentration sensor and a liquid level sensor are installed inside the tank 1. The concentration sensor is a conductivity type and the liquid level sensor is a capacitive type. The concentration sensor is located at the bottom of the tank 1, and the liquid level sensor is installed on the inner wall of the tank 1. Both the concentration sensor and the liquid level sensor are connected to the controller 2 via signal cables.

[0024] The implementation principle of a precision dispensing salt device for drug preparation in this application embodiment is as follows: The operator inputs core parameters such as the target solution concentration and target liquid level into the controller 2 according to the drug preparation requirements. The controller 2 calculates the precise dosage of the required solvent and salt reagent based on a preset algorithm and stores the control threshold. The controller 2 sends a start signal to the metering pump 5 on the inlet pipe 3. The metering pump 5 stably delivers the solvent into the tank 1 according to the calculated solvent dosage. During this process, the liquid level sensor collects liquid level data in real time and feeds it back to the controller 2. When the liquid level reaches the target value, the controller 2 instructs the metering pump 5 to stop working, completing the precise addition of solvent. The controller 2 adds salt reagent into the tank 1 according to the preset dosage. The reagent enters the solvent through the inlet 6, initially forming a mixed system. Next, stirring is carried out. Controller 2 sends a drive signal to drive source 10, and rotating shaft 8 and rotating shaft 9 start synchronously and drive the inclined connecting rod 16 to move. Under the universal transmission of connecting plate 19 and connecting ball 20 and the rotational cooperation of components such as U-shaped frame 11, connecting block 12, and U-shaped frame 15, the connecting rod 16 breaks through the limitation of single circular motion and drives the stirring components to perform multi-dimensional compound motion. The frame-shaped stirring plate 17 strongly agitates the mixture in the central and edge areas; the stirring blades 18 on its inner side further refine the stirring effect, creating shear disturbances in the local liquid; simultaneously, the controller 2 activates the ultrasonic vibrator at the bottom of the tank 1, and the vibrators distributed around the circumference of the tank 1 generate high-frequency vibrations, which are transmitted to the bottom and side walls of the tank 1, breaking the salt particle deposition trend and assisting the rapid dispersion and dissolution of the salt particles; the concentration sensor at the bottom of the tank 1 continuously collects solution concentration data and feeds it back to the controller 2 in real time, forming a dynamic concentration monitoring curve; if the concentration sensor detects that the solution concentration is lower than the target value, the controller 2 can instruct the feeding tank 7 to add salt reagents and appropriately increase the speed of the drive source 10 to enhance the stirring intensity, or increase the power of the ultrasonic vibrator to accelerate the dissolution of salt particles; if the concentration exceeds the threshold, the controller 2 can add a small amount of solvent through the liquid inlet pipe 3 and the metering pump 5 to accurately correct the concentration; until the solution concentration stabilizes within the target range, forming a closed-loop control.

[0025] When the concentration sensor continuously detects that the solution concentration meets the target value and remains stable, the controller 2 determines that the dissolution process is complete and instructs the drive source 10 and the ultrasonic vibrator to stop working; the controller 2 sends a start command to the metering pump 5 on the outlet pipe 4, and the metering pump 5 delivers the prepared precise concentration solution to the subsequent drug preparation equipment or storage container according to the preset requirements.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precision dispensing salt device, comprising a tank (1), characterized in that: The lower end of the tank (1) is rotatably mounted with a rotating shaft one (8), and the upper end of the tank (1) is rotatably mounted with a rotating shaft two (9). Both the power ends of the rotating shaft one (8) and the rotating shaft two (9) are provided with a drive source (10). A connecting rod (16) is provided between the rotating shaft one (8) and the rotating shaft two (9). The connecting rod (16) is inclined. A drive component is provided between the lower end of the connecting rod (16) and the rotating shaft one (8). A rotating component is provided between the upper end of the connecting rod (16) and the rotating shaft two (9). A stirring component is provided on the connecting rod (16). A controller (2) is installed on the front side of the tank (1).

2. The saline dissolving device for precise drug dispensing according to claim 1, characterized in that: The drive assembly includes a connecting plate (19), which is disposed inside the tank (1). One end of the connecting plate (19) is fixedly connected to the rotating shaft (8), and the other end of the connecting plate (19) is rotatably mounted with a connecting ball (20). The connecting ball (20) is fixedly connected to the lower end of the connecting rod (16).

3. The saline dissolving device for precise drug dispensing according to claim 1, characterized in that: The rotating assembly includes a U-shaped frame (11), which is installed at the lower end of the rotating shaft (9). The opening of the U-shaped frame (11) faces downward. A connecting block (12) is provided on the inner side of the U-shaped frame (11). The two sides of the connecting block (12) are rotatably connected to the U-shaped frame (11) through a connecting shaft (13). A connecting shaft (14) is installed on the other two sides of the connecting block (12). A U-shaped frame (15) is provided below the connecting block (12). The two ends of the U-shaped frame (15) are rotatably connected to the corresponding connecting shaft (14). The lower end of the U-shaped frame (15) is fixedly connected to the upper end of the connecting rod (16).

4. The saline dissolving device for precise drug dispensing according to claim 1, characterized in that: The stirring component includes a stirring plate (17), which is frame-shaped, and both ends of the stirring plate (17) are fixedly mounted on the connecting rod (16).

5. The saline dissolving device for precise drug dispensing according to claim 4, characterized in that: The stirring plate (17) is provided with stirring blades (18) on its inner side, and the stirring blades (18) are fixedly installed on the connecting rod (16).

6. The saline dissolving device for precise drug dispensing according to claim 1, characterized in that: The upper end of the tank (1) is equipped with an inlet pipe (3) and a feed inlet (6), the lower end of the tank (1) is equipped with an outlet pipe (4), a metering pump (5) is installed on the inlet pipe (3) and the outlet pipe (4), and a feeding tank (7) is installed on the feed inlet (6).

7. The saline dissolving device for precise drug dispensing according to claim 1, characterized in that: The tank (1) is equipped with a concentration sensor and a liquid level sensor. The concentration sensor is located at the bottom of the tank (1), and the liquid level sensor is installed on the inner side wall of the tank (1). Both the concentration sensor and the liquid level sensor are connected to the controller (2) via signal cables.

8. The saline dissolving device for precise drug dispensing according to claim 1, characterized in that: An ultrasonic vibrator is installed on the outer side of the bottom of the tank (1). At least two ultrasonic vibrators are evenly distributed around the bottom of the tank (1) and are electrically connected to the controller (2). The inner wall of the tank (1) is coated with a polytetrafluoroethylene anti-stick coating.

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