A liquid medicine mixing and stirring device

By using a bent-tube stirrer in the drug solution mixing device, the problem of poor stirring efficiency of existing devices has been solved, achieving low-energy and high-efficiency drug solution mixing and improving the mixing uniformity.

CN224672121UActive Publication Date: 2026-08-25JIANGSU YUNYANG PHARMA GRP
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Patent Information

Application Number
CN202521625223.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2026-08-25
Estimated Expiration
2035-08-01

AI Technical Summary

Technical Problem

Existing pharmaceutical mixing devices have poor stirring efficiency, and low-power motors are difficult to drive, while high-power motors consume a lot of energy. Large stirring surfaces of impellers or blades lead to excessive mixed gas in the liquid.

Method used

A drug solution mixing and stirring device was designed, which adopts a bent tube stirrer. The bent tube has a circular arc surface and a small contact area with the mixture, resulting in low resistance when rotating. The stirrer is driven by a gear transmission group to form a waterspout-shaped vortex, which improves the mixing uniformity.

Benefits of technology

It reduces stirring energy consumption, improves the uniformity and efficiency of the mixture, reduces gas mixing, and saves energy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of liquid medicine mixing and stirring device, comprising: stirrer;Stirrer is sleeved on rotating shaft, the plug-in hole of elbow pipe cooperates with the limiting post on supporting plate, the clamping post on sleeve pipe cooperates with the clamping groove on rotating shaft, locking block is connected by screw and the threaded hole on rotating shaft end face, the lower portion of locking block is equipped with limiting block, limiting block is pressed against clamping post.The utility model is provided with elbow pipe on stirrer, elbow pipe has arc surface and with small contact area of mixed liquid, the resistance received when rotating is small, energy consumption will be low, when the symmetrical elbow pipe rotates, can make mixed liquid form waterspout vortex, vortex gradually becomes larger from bottom to top, can make mixed liquid stir more evenly, improve stirring efficiency.
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Description

Technical Field

[0001] This utility model belongs to the technical field of stirring devices, specifically, it relates to a drug liquid mixing and stirring device. Background Technology

[0002] In the pharmaceutical production process, it is often necessary to mix different types of liquid medicines together, so a liquid medicine mixing device is required. The mixing device is equipped with a stirring device, which usually uses a paddle or blade to stir the liquid. However, the stirring resistance is high, and a low-power motor cannot drive it, while a high-power motor consumes a lot of energy. The large stirring surface of the paddle or blade causes a large amount of gas to be mixed in the liquid. In order to improve the stirring efficiency, a liquid medicine mixing stirring device is provided. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a drug liquid mixing and stirring device to solve the problem of poor stirring efficiency in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model discloses a liquid mixing and stirring device, including: a shell; a power chamber and a mixing tank are provided inside the shell, the mixing tank is provided above the power chamber, the power chamber is provided with a motor, a reducer and a gear transmission group, and the mixing tank is provided with a stirrer; the stirrer is fixed on the rotating shaft of the gear transmission group, the upper end face of the rotating shaft is provided with a groove, the two sides of the groove are provided with threaded holes, the outer side of the rotating shaft is symmetrically provided with a support plate, the upper end face of the support plate is provided with a limiting post, the stirrer has a sleeve, the upper end of the inner side of the sleeve is provided with a locking post, the outer side of the sleeve is symmetrically provided with a bend, the bottom of the bend is provided with an insertion hole, the stirrer is sleeved on the rotating shaft, the insertion hole of the bend cooperates with the limiting post on the support plate, the locking post on the sleeve cooperates with the groove on the rotating shaft, the locking block is connected to the threaded hole on the end face of the rotating shaft by a screw, the lower part of the locking block is provided with a limiting block, and the limiting block abuts against the locking post.

[0005] Furthermore, the aforementioned tray is triangular in shape.

[0006] Furthermore, the aforementioned bend is U-shaped, with both ends connected to the outer side of the sleeve.

[0007] Furthermore, the bottom surface of the aforementioned limiting block is an arc surface.

[0008] Compared with the prior art, this application can achieve the following technical effects:

[0009] The stirrer of this invention is equipped with a curved tube. The curved tube has an arc surface and a small contact area with the mixture, so the resistance encountered during rotation is small and the energy consumption is low. When the symmetrical curved tube rotates, it can make the mixture form a waterspout-shaped vortex. The vortex gradually increases from bottom to top, which can make the mixture more evenly stirred and improve the stirring efficiency.

[0010] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0012] Figure 1 This is a schematic diagram of a mixing device according to one embodiment of the present invention;

[0013] Figure 2 This is an exploded view of the stirrer according to one embodiment of the present invention.

[0014] Attached Figure Labels

[0015] 1. Outer shell; 2. Power compartment; 3. Motor; 4. Motor shaft; 5. Reducer; 6. Gear transmission assembly; 7. Mixing tank; 8. Stirrer; 11. Soaking tank; 12. First valve; 13. Infusion pipe; 14. Flow regulator; 16. Medicine basket; 18. Top cover; 19. Second valve; 20. Outlet pipe; 61. Rotating shaft; 62. Slot; 63. Threaded hole; 64. Support plate; 65. Limiting post; 30. Sleeve; 31. Snap-fit ​​post; 32. Bend; 40. Locking block; 41. Through hole; 42. Limiting block; 50. Screw. Detailed Implementation

[0016] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0017] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a mixing device according to one embodiment of the present invention; Figure 2 This is an exploded view of the stirrer according to one embodiment of the present invention.

[0018] A liquid mixing device includes a power chamber 2 located at the bottom inner side of an outer casing 1. A motor 3 is mounted on the left side of the power chamber 2, and a motor shaft 4 is rotatably connected to the motor 3. A reducer 5 is rotatably connected to the motor shaft 4, and a gear transmission assembly 6 is rotatably connected to the reducer 5. A mixing tank 7 is located above the power chamber 2 and is situated inside the outer casing 1. An agitator 8 is installed inside the mixing tank 7, with its lower end penetrating through the bottom of the mixing tank 7 and the top of the power chamber 2 and connected to the gear transmission assembly 6. The center point of the mixing tank 7 and the center point of the agitator 8 are on the same vertical line. The mixing tank 7 is equipped with a straight line to ensure that the stirring 8 fully mixes the medicinal liquid when it rotates. A soaking tank 11 is located at the top of the outer shell 1, and a first valve 12 is located at the bottom of the soaking tank 11. The first valve 12 is also located on the upper inner side of the outer shell 1. Two soaking tanks 11, two first valves 12, two infusion pipes 13, and two flow buffers 14 are provided. These components are symmetrical about the center point of the mixing tank 7. Different types of medicinal materials are soaked in the soaking tank 11 to extract the medicinal liquid. The bottom of the first valve 12 is connected to the infusion pipe 13, and the lower end of the infusion pipe 13 passes through the top of the mixing tank 7 and connects to the flow buffer 14. The flow buffer 14 is located on the inner walls of the left and right sides of the mixing tank 7. A medicine basket 16 is installed inside the soaking tank 11, and the surface of the medicine basket 16 has a mesh structure. The medicine soaking tank 11 is equipped with a top cover 18, and the bottom right side of the mixing tank 7 is equipped with a second valve 19, and the bottom of the second valve 19 is connected to the liquid outlet pipe 20. At the same time, the lower end of the liquid outlet pipe 20 passes through the top of the power chamber 2 and the lower front side of the outer shell 1. The liquid outlet pipe 20 is L-shaped, and the distance between the bottom of the liquid outlet pipe 20 and the bottom of the outer shell 1 is smaller than the distance between the bottom of the mixing tank 7 and the bottom of the outer shell 1, thereby increasing the liquid outlet speed.

[0019] Working principle: When using this medicine mixing device, first lift the top cover 18 upwards, and place the different types of medicinal materials into the medicine baskets 16 inside the two soaking tanks 11 respectively. Add the medicine solution medium to the two soaking tanks 11 respectively, and then reconnect the top cover 18 to the top of the soaking tanks 11. After the medicinal materials have been soaked, open the first valve 12 to allow the medicine solution in the soaking tanks 11 to flow through the first valve 12 into the infusion pipe 13, and then from the infusion pipe 13 into the flow buffer 14. The flow buffer 14 is a container with a trapezoidal vertical cross-section and an open bottom structure. When the medicine solution flows into the flow buffer 14... When the two different types of medicinal liquids have flowed into the mixing tank 7, the external power is turned on and the motor 3 is started. The motor shaft 4 drives the reducer 5 and the gear transmission group 6 to start rotating. The gear transmission group 6 drives the stirrer 8 to start rotating slowly inside the mixing tank 7, thereby mixing the medicinal liquids in the mixing tank 7. When the medicinal liquids are mixed, the external power is turned off and the second valve 19 is started, so that the mixed medicinal liquids in the mixing tank 7 can be discharged through the liquid outlet pipe 20. This completes the whole work.

[0020] The agitator 8 is fixed on the rotating shaft 61 of the gear transmission assembly 6. The upper end face of the rotating shaft 61 is provided with a groove 62, and threaded holes 63 are provided on both sides of the groove 62. The outer side of the rotating shaft 61 is symmetrically provided with a support plate 64, and the upper end face of the support plate 64 is provided with a limiting post 65. The agitator 8 has a sleeve 30, and the upper end of the inner side of the sleeve 30 is provided with a locking post 31. The outer side of the sleeve 30 is symmetrically provided with a bent tube 32, and the bottom of the bent tube 32 is provided with an insertion hole. The agitator 8 is sleeved on the rotating shaft 61. The insertion hole of the bent tube 32 cooperates with the limiting post 65 on the support plate 64. The locking post 31 on the sleeve 30 cooperates with the groove 62 on the rotating shaft 61. The locking block 40 is connected to the threaded hole 63 on the end face of the rotating shaft 61 by a screw 50 passing through the through hole 41. The lower part of the locking block 40 is provided with a limiting block 42, and the limiting block 42 abuts against the locking post 31.

[0021] The tray 64 is triangular in shape, which can support the agitator 8. The limiting post 65 on the tray 64 can limit the rotation of the agitator 8, so that the rotating shaft 61 can drive the agitator 8.

[0022] The bend 32 is U-shaped, with both ends connected to the outer side of the sleeve 30. The area of ​​the bend 32 intersecting the blade and the mixture is small, so the resistance is naturally small, which can reduce energy consumption.

[0023] The bottom surface of the limiting block 42 is an arc surface, which abuts against the surface of the locking post 31, thus effectively limiting movement and reducing shaking.

[0024] The stirrer 8 of this invention is equipped with a bent tube 32. The bent tube 32 has an arc surface and a small contact area with the mixture, so the resistance it encounters when rotating is small and the energy consumption is low. When the symmetrical bent tube 32 rotates, it can make the mixture form a waterspout-shaped vortex. The vortex gradually increases from bottom to top, which can make the mixture more evenly stirred and improve the stirring efficiency.

[0025] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A pharmaceutical liquid mixing and stirring device, comprising: shell; The inner side of the outer shell is provided with a power chamber and a mixing tank. The mixing tank is located above the power chamber. The power chamber is provided with a motor, a reducer and a gear transmission assembly. The mixing tank is provided with a stirrer. The stirrer is characterized in that it is fixed on the rotating shaft of the gear transmission assembly. The upper end face of the rotating shaft is provided with a groove, and threaded holes are provided on both sides of the groove. Support plates are symmetrically arranged on the outer side of the rotating shaft, and limiting posts are provided on the upper end face of the support plates. The stirrer has a sleeve, and a snap-fit ​​post is provided at the upper end of the inner side of the sleeve. Bending tubes are symmetrically arranged on the outer side of the sleeve, and insertion holes are provided at the bottom of the bending tubes. The stirrer is sleeved on the rotating shaft. The insertion holes of the bending tubes cooperate with the limiting posts on the support plates. The snap-fit ​​posts on the sleeves cooperate with the grooves on the rotating shaft. The locking block is connected to the threaded holes on the end face of the rotating shaft by screws. A limiting block is provided at the lower part of the locking block, and the limiting block abuts against the snap-fit ​​post.

2. The pharmaceutical solution mixing and stirring device as described in claim 1, characterized in that, The tray is triangular in shape.

3. The pharmaceutical solution mixing and stirring device as described in claim 2, characterized in that, The bend is U-shaped, with both ends connected to the outer side of the sleeve.

4. The pharmaceutical solution mixing and stirring device as described in claim 3, characterized in that, The bottom surface of the limiting block is an arc surface.