Medicament preparation device for clinical pharmacy

Abstract

The invention discloses a medicament preparation device for clinical pharmacy, and belongs to the technical field of medicament preparation, the medicament preparation device comprises a medicament preparation barrel vertically placed above the ground, and medicament feeding hoppers are uniformly mounted at the upper end of the medicament preparation barrel; the driving column is mounted in the center of the upper end of the medicament preparation barrel in a penetrating and lifting manner; the movable frame is fixedly mounted on the inner side of the upper end of the medicament preparation barrel through a first spring, sealing plugs are uniformly and fixedly mounted on the outer side of the movable frame, and the sealing plugs correspond to the lower end of the medicament feeding hopper in position; the stirring shaft is fixedly mounted at the lower end of the driving column, fixing rods are uniformly and fixedly mounted on the outer side of the stirring shaft, the outer sides of the fixing rods are telescopically sleeved with telescopic cylinders, and liquid conveying pipes are uniformly and fixedly mounted on the outer sides of the telescopic cylinders. According to the drug preparation device for clinical pharmacy, intermittent feeding of drugs can be achieved, multi-direction and multi-mode stirring of the drugs can be achieved, and the mixing and preparation effect of the drugs is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drug preparation, in particular to a drug preparation device for clinical pharmacy. Background Art

[0002] Clinical pharmacy is a pharmaceutical discipline that studies the rationality and effectiveness of drug prevention and treatment. It mainly studies the theories and methods for drugs to achieve the highest therapeutic effect during metabolism in the human body. Pharmacists in the pharmacy department need to use drug preparation equipment to mix multiple drugs when conducting drug research.

[0003] Prior art 1 (application number: 202022461317.9, Chinese patent with application date of 2020-10-29) discloses a clinical pharmaceutical drug preparation device, which drives a driving motor, a rotating shaft, a stirring barrel, and a stirring rod in the stirring barrel. The driving motor drives the rotating shaft to rotate, and the rotating shaft drives the stirring barrel to rotate. The stirring rod in the stirring barrel stirs the medicine inside when the stirring barrel rotates, thereby avoiding artificial mixing of medicines and making the mixing more uniform. Prior art 2 (application number: 202323283074.4, Chinese patent with application date of 2023-12-04) discloses a clinical pharmaceutical drug preparation device, which can achieve stirring and mixing of drugs and cleaning of drugs on the stirring rod to prevent residual drugs on the stirring rod from affecting the uniform mixing of drugs. Drugs are added through a drug adding hopper, and the stirrer stirs and mixes the drugs. At the same time, the cleaner cleans the working stirrer to prevent drugs from sticking to the stirrer and making the drugs mixed unevenly. When the existing medicine preparation device is used, the stirring mechanism is single, which makes it impossible to stir multiple medicines evenly in multiple directions. The medicine mixing and configuration efficiency is low, resulting in uneven drug component content, affecting dosage and efficacy, and there are certain usage defects. Summary of the invention

[0004] The purpose of the present invention is to provide a drug preparation device for clinical pharmacy to solve the problem raised by the above-mentioned background technology that the stirring mechanism of the drug preparation device currently on the market is single, making it impossible to stir multiple drugs evenly in multiple directions, and the efficiency of drug mixing and configuration is low, resulting in uneven drug component content, affecting dosage and efficacy.

[0005] To achieve the above object, the present invention provides the following technical solution: a drug preparation device for clinical pharmacy, comprising a drug preparation barrel placed vertically above the ground, a drug delivery hopper evenly installed on the upper end of the drug preparation barrel, and a driving motor fixedly installed on the outer side of the drug preparation barrel; It also includes: a driving column, which is installed at the upper center of the medicine dispensing barrel for lifting, and a lifting component is connected between the driving column and the driving motor; The movable frame is fixedly mounted on the inner side of the upper end of the medicine dispensing barrel by a first spring, and a sealing plug is evenly fixedly mounted on the outer side of the movable frame, and the sealing plug and the lower end position of the medicine delivery hopper are arranged correspondingly, and an adjusting component for adjusting the height of the movable frame is connected between the movable frame and the driving column; The stirring shaft is fixedly installed at the lower end of the driving column. A fixing rod is evenly fixedly installed on the outer side of the stirring shaft, and a telescopic sleeve is provided on the outer side of the fixing rod, and an infusion tube is evenly fixedly installed on the outer side of the telescopic sleeve. At the same time, an air transmission component is arranged between the driving column, the stirring shaft and the fixed rod.

[0006] Preferably, the lifting assembly includes a reciprocating screw fixedly mounted on the output end of the driving motor, and the outer thread of the reciprocating screw is connected to a lifting adjustment frame, and the end of the lifting adjustment frame away from the reciprocating screw is rotatably connected to a driving column.

[0007] Preferably, the adjustment component includes a first magnetic plate fixedly mounted on the outside of the driving column, and a second magnetic plate is fixedly mounted on the lower surface of the movable frame, and both the first magnetic plate and the second magnetic plate are arranged in an annular structure, and at the same time, the relative magnetic poles of the first magnetic plate and the second magnetic plate are the same, and the movable frame moves upward under the action of the magnetic force of the first magnetic plate and the second magnetic plate to compress the first spring.

[0008] Preferably, the sealing plug is arranged in a conical structure, and the sealing plug is fitted to the lower end of the medicine delivery hopper to achieve sealing of the medicine delivery hopper.

[0009] Preferably, a spiral first guide groove is formed on the outer wall of the driving column, and a first ball is embedded in the inner wall of the through hole at the upper end of the medicine dispensing barrel, and the first ball rolls along the first guide groove, while the driving column performs synchronous reciprocating rotation during the lifting process.

[0010] Preferably, a first magnetic block is fixedly installed on the outer side of one end of the telescopic cylinder close to the inner wall of the medicine dispensing barrel, and a second magnetic block is embedded and installed at an equal angle on the inner wall of the medicine dispensing barrel, and the magnetic poles of the opposite surfaces of the first magnetic block and the second magnetic block are the same, and a second spring is connected between the fixed rod and the telescopic cylinder.

[0011] Preferably, a second guide groove is provided on the outside of the telescopic cylinder, and a fixing frame is fixedly installed on the outside of the stirring shaft, and a second ball is embedded in the inner wall of the fixing frame. At the same time, the second ball rolls along the second guide groove, and the telescopic cylinder rotates synchronously when the outside of the fixed rod is telescopically adjusted.

[0012] Preferably, a sealing rubber sheet is provided on the inner side of the telescopic cylinder for interference sliding, and the sealing rubber sheet is fixedly mounted on the end of the fixed rod, and the medicine is sucked in and discharged through the infusion tube during the telescopic adjustment of the telescopic cylinder.

[0013] Preferably, an air pipe is provided through the driving column and the stirring shaft, and a one-way valve structure is provided at the upper and lower ends of the air pipe respectively, and an air pressure regulating branch pipe is embedded and installed on the inner side of the fixing rod, and the air pressure regulating branch pipe and the air pipe are communicated with each other, and when the sealing rubber sheet slides back and forth inside the telescopic cylinder, the air pressure regulating branch pipe extracts and injects air from the air pipe, and when the air pressure inside the air pipe increases, air is injected into the medicine through its lower end, thereby improving the stirring and mixing effect of the medicine by the generation of bubbles.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the clinical pharmaceutical drug preparation device can realize intermittent delivery of drugs, and can realize multi-directional and multi-mode stirring of drugs, effectively improving the mixing and configuration effect of drugs, the specific contents are as follows; 1. A reciprocating screw and a lifting adjustment frame are provided. By starting the driving motor to drive the reciprocating screw to rotate, the reciprocating screw can drive the lifting adjustment frame to reciprocate and lift. At this time, the lifting adjustment frame can drive the stirring shaft to lift and lower, so as to adjust the stirring position of the equipment and improve the stirring effect; 2. A movable frame and a sealing plug are provided. As the stirring shaft moves downward, it will drive the first magnetic sheet to move downward synchronously and reciprocally, so that the magnetic force on the movable frame is reduced. At this time, the movable frame will move downward under the elastic force of the first spring, so that the sealing plug is separated from the lower end of the medicine feeding hopper, so that the medicine in the medicine feeding hopper can be discharged into the medicine configuration barrel, realizing intermittent feeding; 3. A driving column and a stirring shaft are provided. As the driving column reciprocates and rises, the first ball on the inner wall of the through hole at the upper end of the medicine dispensing barrel rolls along the first guide groove. Since the first guide groove is spirally arranged, the driving column will synchronously reciprocate during the lifting and lowering adjustment process, thereby further improving the stirring effect of the medicine; 4. A fixed rod, a telescopic cylinder, a first magnetic block and a second magnetic block are provided. As the stirring shaft rotates, the first magnetic block on the outer side of the telescopic cylinder will intermittently approach the second magnetic block, so that the telescopic cylinder and the fixed rod are telescopically adjusted. At the same time, the second ball on the fixed frame will slide along the second guide groove, thereby driving the telescopic cylinder to rotate synchronously during the telescopic adjustment process. At this time, the telescopic cylinder can use the infusion tube on its outer side to stir the medicine in multiple positions and directions, effectively improving the mixing configuration effect of the medicine; 5. A sealing film, an air pipe and an air pressure regulating branch pipe are provided. With the telescopic adjustment of the fixed rod and the telescopic cylinder, the sealing film slides on the inner side of the telescopic cylinder. At this time, the telescopic cylinder can reciprocately suck and discharge the medicine through the infusion tube, thereby improving the fluidity of the medicine to assist the mixing of the medicine. During the sliding process of the sealing film, the air pressure regulating branch pipe will extract the air in the air pipe and supply air to the air pipe, so that the air pipe can inhale the outside air through the upper end and supply air to the medicine in the medicine preparation barrel through the lower end, thereby further improving the mixing effect of the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the installation structure of the drive column of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 This is a schematic diagram of the installation structure of the fixed rod and the telescopic cylinder of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the stirring shaft of the present invention; Figure 8 It is a schematic cross-sectional view of the fixing rod and the telescopic cylinder of the present invention.

[0016] In the figure: 1. medicine preparation barrel; 2. medicine delivery hopper; 3. driving motor; 4. reciprocating screw; 5. lifting adjustment frame; 6. driving column; 7. first magnetic sheet; 8. first spring; 9. movable frame; 10. second magnetic sheet; 11. sealing plug; 12. stirring shaft; 13. first guide groove; 14. first ball; 15. fixing rod; 16. telescopic cylinder; 17. second spring; 18. first magnetic block; 19. second magnetic block; 20. infusion tube; 21. second guide groove; 22. fixing frame; 23. second ball; 24. sealing film; 25. gas pipe; 26. gas pressure regulating branch. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1-Figure 5As shown, the existing medicine preparation device cannot intermittently dispense medicine, so that too much medicine is dispensed at one time and the subsequent stirring burden is increased. In order to solve this technical problem, this embodiment discloses the following technical content; A drug preparation device for clinical pharmacy, comprising a drug preparation barrel 1 vertically placed above the ground, a drug delivery hopper 2 evenly installed on the upper end of the drug preparation barrel 1, and a driving motor 3 fixedly installed on the outer side of the drug preparation barrel 1; It also includes: a driving column 6, which is installed at the upper center of the medicine dispensing barrel 1 for lifting, and a lifting component is connected between the driving column 6 and the driving motor 3; The movable frame 9 is fixedly mounted on the inner side of the upper end of the medicine dispensing barrel 1 through the first spring 8, and the outer side of the movable frame 9 is evenly fixedly mounted with a sealing plug 11, and the sealing plug 11 and the lower end position of the medicine delivery hopper 2 are arranged correspondingly, and an adjusting component for adjusting the height of the movable frame 9 is connected between the movable frame 9 and the driving column 6; The lifting assembly includes a reciprocating screw 4 fixedly mounted on the output end of the driving motor 3, and the outer thread of the reciprocating screw 4 is connected to a lifting adjustment frame 5, and the end of the lifting adjustment frame 5 away from the reciprocating screw 4 is rotatably connected to a driving column 6.

[0019] The adjusting component includes a first magnetic plate 7 fixedly mounted on the outside of the driving column 6, and a second magnetic plate 10 is fixedly mounted on the lower surface of the movable frame 9, and both the first magnetic plate 7 and the second magnetic plate 10 are arranged in an annular structure, and at the same time, the opposite surface magnetic poles of the first magnetic plate 7 and the second magnetic plate 10 are the same, and the movable frame 9 moves upward under the action of the magnetic force of the first magnetic plate 7 and the second magnetic plate 10 to compress the first spring 8.

[0020] The sealing plug 11 is provided in a conical structure, and the sealing plug 11 is fitted to the lower end of the medicine delivery hopper 2 to seal the medicine delivery hopper 2 .

[0021] By adopting the above technical scheme, the medicine is poured into the medicine feeding hopper 2 in advance, and then the driving motor 3 is started. At this time, the driving motor 3 will drive the reciprocating screw 4 to rotate, so that the reciprocating screw 4 drives the lifting and adjusting frame 5 to perform reciprocating lifting and adjusting through the threaded connection. At this time, the lifting and adjusting frame 5 will drive the driving column 6 and the stirring shaft 12 to perform synchronous lifting and adjusting. When the driving column 6 and the stirring shaft 12 move downward, they will drive the first magnetic sheet 7 on the outside to move downward synchronously, so that the first magnetic sheet 7 is away from the second magnetic sheet 10. At this time, the movable frame 9 will move downward under the elastic force of the first spring 8, thereby driving the sealing plug 11 to move downward synchronously, so that the lower end of the medicine feeding hopper 2 is unblocked and discharge is realized. When the first magnetic sheet 7 moves upward, it will drive the movable frame 9 to move upward through the magnetic action, so that the sealing plug 11 automatically blocks the lower end of the medicine feeding hopper 2, thereby realizing intermittent feeding.

[0022] Embodiment 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1. The stirring mechanism of the existing clinical pharmaceutical drug preparation device is fixed, so that the stirring direction and method of the drug are single, and the drug cannot be fully mixed. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 3-Figure 8 As shown; The stirring shaft 12 is fixedly installed on the lower end of the driving column 6. A fixing rod 15 is evenly fixedly installed on the outer side of the stirring shaft 12, and a telescopic sleeve 16 is provided on the outer side of the fixing rod 15. A liquid infusion tube 20 is evenly fixedly installed on the outer side of the telescopic sleeve 16. At the same time, an air transmission component is arranged between the driving column 6, the stirring shaft 12 and the fixing rod 15.

[0023] A spiral first guide groove 13 is formed on the outer wall of the driving column 6, and a first ball 14 is embedded in the inner wall of the through hole at the upper end of the medicine dispensing barrel 1, and the first ball 14 rolls along the first guide groove 13, while the driving column 6 performs synchronous reciprocating rotation during the lifting process.

[0024] A first magnetic block 18 is fixedly installed on the outer side of one end of the telescopic cylinder 16 close to the inner wall of the medicine dispensing barrel 1, and a second magnetic block 19 is embedded and installed at an equal angle on the inner wall of the medicine dispensing barrel 1, and the magnetic poles of the opposite surfaces of the first magnetic block 18 and the second magnetic block 19 are the same. At the same time, a second spring 17 is connected between the fixed rod 15 and the telescopic cylinder 16.

[0025] A second guide groove 21 is provided on the outer side of the telescopic cylinder 16, and a fixing frame 22 is fixedly installed on the outer side of the stirring shaft 12, and a second ball 23 is embedded in the inner wall of the fixing frame 22. At the same time, the second ball 23 rolls along the second guide groove 21, and the telescopic cylinder 16 rotates synchronously when the outer side of the fixed rod 15 is telescopically adjusted.

[0026] A sealing rubber sheet 24 is provided inside the telescopic cylinder 16 for interference sliding, and the sealing rubber sheet 24 is fixedly mounted on the end of the fixed rod 15 , and the medicine is sucked in and discharged through the infusion tube 20 during the telescopic adjustment of the telescopic cylinder 16 .

[0027] An air pipe 25 is provided through the driving column 6 and the stirring shaft 12, and a one-way valve structure is provided at the upper and lower ends of the air pipe 25 respectively, and an air pressure regulating branch pipe 26 is embedded and installed on the inner side of the fixing rod 15, and the air pressure regulating branch pipe 26 and the air pipe 25 are connected. When the sealing film 24 slides back and forth inside the telescopic cylinder 16, the air pressure regulating branch pipe 26 extracts and injects air from the air pipe 25, and when the air pressure inside the air pipe 25 increases, air is injected into the medicine through its lower end, thereby improving the stirring and mixing effect of the medicine by generating bubbles.

[0028] By adopting the above technical solution, during the lifting and lowering adjustment of the driving column 6, the first ball 14 on the inner wall of the through hole at the top of the medicine dispensing barrel 1 will roll back and forth along the first guide groove 13, thereby driving the driving column 6 to drive the stirring shaft 12 to rotate back and forth synchronously. At this time, the stirring shaft 12 can use the fixed rod 15 and the telescopic cylinder 16 to preliminarily stir the medicine, and as the stirring shaft 12 rotates, the first magnetic block 18 at the end of the telescopic cylinder 16 will intermittently pass through the second magnetic block 19, so that the telescopic cylinder 16 and the fixed rod 15 are telescopically adjusted under the action of the magnetic force and the elastic force of the second spring 17, and as the fixed rod 15 and the telescopic cylinder 16 are telescopically adjusted, the second ball 23 embedded in the lower surface of the fixing frame 22 will roll along the second guide groove 21 opened on the outer side of one end of the telescopic cylinder 16, thereby driving the telescopic cylinder 16 to telescope. During the process, the telescopic cylinder 16 rotates synchronously. At this time, the telescopic cylinder 16 can use the infusion tube 20 on its outer side to stir the medicine in multiple directions, thereby improving the stirring effect. As the fixed rod 15 and the telescopic cylinder 16 are telescopically adjusted, the sealing film 24 will slide back and forth on the inner side of the telescopic cylinder 16. At this time, the telescopic cylinder 16 will suck and discharge the medicine through the infusion tube 20 under the action of negative pressure, accelerate the flow of the medicine, and thus achieve full stirring of the medicine. At the same time, the movement of the sealing film 24 will cause the air pressure regulating branch pipe 26 to extract air from the air supply pipe 25 and supply air to the air supply pipe 25 under the action of negative pressure. Since the upper and lower ends of the air supply pipe 25 are respectively provided with a one-way valve structure, the air supply pipe 25 can automatically take in air through the upper end and supply air to the medicine through the lower end, thereby further improving the mixing effect through the generation of bubbles.

[0029] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drug preparation device for clinical pharmacy, comprising a drug preparation barrel (1) placed vertically above the ground, a drug delivery hopper (2) evenly mounted on the upper end of the drug preparation barrel (1), and a driving motor (3) fixedly mounted on the outer side of the drug preparation barrel (1); It is characterized in that Also includes: A driving column (6) is installed to penetrate the center of the upper end of the medicine dispensing barrel (1) for lifting, and a lifting component is connected between the driving column (6) and the driving motor (3); A movable frame (9) is fixedly mounted on the inner side of the upper end of the medicine dispensing barrel (1) via a first spring (8); a sealing plug (11) is evenly and fixedly mounted on the outer side of the movable frame (9); the sealing plug (11) and the lower end of the medicine dispensing hopper (2) are arranged in a corresponding position; and an adjusting component for adjusting the height of the movable frame (9) is connected between the movable frame (9) and the driving column (6); The stirring shaft (12) is fixedly mounted on the lower end of the driving column (6); a fixing rod (15) is evenly fixedly mounted on the outer side of the stirring shaft (12); a telescopic sleeve (16) is provided on the outer side of the fixing rod (15); and a liquid infusion tube (20) is evenly fixedly mounted on the outer side of the telescopic sleeve (16); and a gas transmission assembly is provided between the driving column (6), the stirring shaft (12) and the fixing rod (15).

2. A clinical pharmaceutical preparation device according to claim 1, characterized in that: The lifting assembly comprises a reciprocating screw (4) fixedly mounted on the output end of the driving motor (3), the outer thread of the reciprocating screw (4) is connected to a lifting adjustment frame (5), and the end of the lifting adjustment frame (5) away from the reciprocating screw (4) is penetrated and rotatably connected to a driving column (6).

3. A clinical pharmaceutical preparation device according to claim 1, characterized in that: The adjustment component comprises a first magnetic sheet (7) fixedly mounted on the outside of the driving column (6), and a second magnetic sheet (10) is fixedly arranged on the lower surface of the movable frame (9), and both the first magnetic sheet (7) and the second magnetic sheet (10) are arranged in an annular structure, and the opposite magnetic poles of the first magnetic sheet (7) and the second magnetic sheet (10) are the same, and the movable frame (9) moves upward under the action of the magnetic force of the first magnetic sheet (7) and the second magnetic sheet (10) to compress the first spring (8).

4. A clinical pharmaceutical preparation device according to claim 1, characterized in that: The sealing plug (11) is provided in a conical structure, and the sealing plug (11) is fitted to the lower end of the medicine delivery hopper (2) to achieve sealing of the medicine delivery hopper (2).

5. A clinical pharmaceutical preparation device according to claim 1, characterized in that: The outer wall of the driving column (6) is provided with a spiral first guide groove (13), and a first ball (14) is embedded and installed in the inner wall of the through hole at the upper end of the medicine dispensing barrel (1), and the first ball (14) rolls along the first guide groove (13), while the driving column (6) performs synchronous reciprocating rotation during the lifting process.

6. A clinical pharmaceutical drug preparation device according to claim 1, characterized in that: A first magnetic block (18) is fixedly mounted on the outer side of one end of the telescopic cylinder (16) close to the inner wall of the medicine dispensing barrel (1), and a second magnetic block (19) is embedded and mounted at an equal angle on the inner wall of the medicine dispensing barrel (1), and the magnetic poles of the opposing surfaces of the first magnetic block (18) and the second magnetic block (19) are the same, and a second spring (17) is connected between the fixed rod (15) and the telescopic cylinder (16).

7. A clinical pharmaceutical preparation device according to claim 6, characterized in that: A second guide groove (21) is formed on the outer side of the telescopic cylinder (16), and a fixing frame (22) is fixedly mounted on the outer side of the stirring shaft (12), and a second ball (23) is embedded and mounted on the inner wall of the fixing frame (22). The second ball (23) rolls along the second guide groove (21), and the telescopic cylinder (16) rotates synchronously when the outer side of the fixing rod (15) is telescopically adjusted.

8. A clinical pharmaceutical preparation device according to claim 7, characterized in that: A sealing rubber sheet (24) is provided on the inner side of the telescopic cylinder (16) in an interference sliding manner, and the sealing rubber sheet (24) is fixedly mounted on the end of the fixed rod (15). During the telescopic adjustment process of the telescopic cylinder (16), medicine is inhaled and discharged through the infusion tube (20).

9. A clinical pharmaceutical preparation device according to claim 8, characterized in that: An air supply pipe (25) is provided through the driving column (6) and the stirring shaft (12), and the upper and lower ends of the air supply pipe (25) are respectively provided with a one-way valve structure, and an air pressure regulating branch pipe (26) is embedded and installed inside the fixing rod (15), and the air pressure regulating branch pipe (26) and the air supply pipe (25) are connected. When the sealing rubber sheet (24) reciprocates inside the telescopic cylinder (16), the air pressure regulating branch pipe (26) extracts and injects air from the air supply pipe (25), and when the air pressure inside the air supply pipe (25) increases, air is injected into the medicine through its lower end, thereby improving the stirring and mixing effect of the medicine by generating bubbles.

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