Stirring structure of injection preparation device

Abstract

The utility model relates to the technical field of stirring structures, in particular to a stirring structure of an injection liquid preparation device, which comprises a liquid medicine stirring barrel, a barrel cover connected with a top flange of the liquid medicine stirring barrel, a feeding pipe with a cover arranged at the top of the barrel cover, a rectangular cover body arranged at the top of the barrel cover, a lifting part arranged on the rectangular cover body, and a first motor connected with the lifting part. An output shaft of the first motor penetrates through the top of the rectangular cover body and is coaxially connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with an inner threaded pipe, a moving plate is arranged at the bottom end of the inner threaded pipe, and a stirring part is arranged on the moving plate. According to the stirring structure of the injection liquid preparation device, through the design of the lifting part, the first motor is used for driving the threaded rod to rotate, so that the inner threaded pipe and the movable plate are driven to move up and down, and the stirring part can perform movable stirring in the vertical direction; and the problems of non-uniform mixing and layering of the liquid medicine in the vertical direction can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agitating structure technical field, concretely is injection solution preparation device agitating structure. BACKGROUND

[0002] Injection is a kind of sterile liquid preparation that drug is prepared after being dissolved or dispersed, usually directly injected into human body to achieve the purpose of treatment, diagnosis or prevention.The preparation process of injection generally includes liquid preparation, filtration, filling and sterilization etc.Linkage.Liquid preparation link is the key step to ensure the uniformity, stability and purity of liquid, and in the liquid preparation process of injection, drug raw materials usually need to be mixed with solvent sufficiently to form uniform liquid preparation.To achieve this goal, stirring device is an indispensable component in liquid preparation system.

[0003] The patent with publication number CN220861133U discloses a kind of stirring device for preparing toad venom injection, including stirring barrel, the top of the inner chamber of stirring barrel is fixedly connected with first gear, the top of stirring barrel is fixedly installed with first motor, the inner chamber of first motor is provided with horizontal plate, the left and right sides of horizontal plate are rotatably connected with first rotating rod, the top and bottom of first rotating rod are fixedly connected with second gear and third gear, the left and right sides of the bottom of horizontal plate are rotatably connected with third gear, the bottom of third gear is fixedly connected with moving plate, the bottom of moving plate is fixedly connected with second rotating rod.The utility model can conveniently clean the inner wall of stirring barrel, the structure is simple, it is convenient for staff to use, improve the working efficiency of device, also can improve the mixing efficiency of toad venom injection, the stirring effect is good, improve the practicability of device.

[0004] The above prior art drives the screw rod to rotate by the forward rotation of the second motor, the screw rod drives the circular seat to move downward, the circular seat simultaneously drives the brush and the water collecting box to move downward, the water collecting box drives the spray head to move downward while spraying water on the inner wall of the stirring barrel, so that the inner wall of the stirring barrel can be conveniently cleaned.However, this technology still has some problems that cannot be ignored: first, since the screw rod and the brush are located inside the stirring barrel, the structure is relatively complex, and the threads and the brush part are easy to adhere to the solution, so it is often difficult to completely remove the attached liquid residue during cleaning;Second, the residue of threads and brush may cause cross contamination of the next batch of injection liquid preparation under incomplete cleaning, affecting the purity and quality of liquid preparation.In addition, although this technology can improve the cleaning efficiency of the inner wall of the stirring barrel, its stirring function is still limited to fixed-height stirring of the blade, and cannot realize up-down stirring, resulting in insufficient mixing of the liquid in the vertical direction, and there are problems of stratification or uneven mixing, therefore, we propose injection liquid preparation device agitating structure. SUMMARY

[0005] The utility model discloses a injection liquid preparation device stirring structure to solve the problem in the above background technique.

[0006] To realize above -mentioned purpose, the utility model provides the following technical scheme:

[0007] Injection liquid preparation device stirring structure, including liquid medicine stirring bucket, the main body container for containing liquid medicine and solvent, provide space for stirring and mixing, the top flange of liquid medicine stirring bucket is connected with the bucket cover, for sealing liquid medicine stirring bucket, prevent liquid medicine from leaking or external contaminant to enter, the top of bucket cover and the position close to the outer edge are equipped with the feed pipe with cover, for adding medicine raw material or solvent to the inside of liquid medicine stirring bucket, and prevent external contaminant from entering through the sealing cover, the top of bucket cover is equipped with rectangular cover body, for protection and installation elevating piece and stirring piece, and simultaneously provide structural support for it;

[0008] Lift piece is equipped on rectangular cover body, for driving stirring piece to move up and down, to realize the sufficient mixing and stirring of liquid medicine in the vertical direction, the first motor is fixedly connected to the top of rectangular cover body, and power is provided for lift piece, and driving screw rod rotates, the output shaft of first motor passes through the top of rectangular cover body and is coaxially connected with screw rod, and the vertical movement of stirring piece is realized by rotating and driving internal thread pipe to lift, the outer wall of screw rod is connected with internal thread pipe, and internal thread pipe converts the rotary motion of screw rod into linear motion, and is connected with moving plate to drive it to lift, the bottom end of internal thread pipe is equipped with moving plate, for bearing stirring piece, and lifting with internal thread pipe to realize up and down stirring;

[0009] Stirring piece is equipped on moving plate, for mixing liquid medicine in liquid medicine stirring bucket, and scraping the deposit on the barrel wall, the second motor is fixedly connected to the top of moving plate, and the first motor and the second motor are all connected with power supply and controller work, and the second motor provides rotary power for stirring piece, the output shaft of second motor passes through the top of moving plate and is coaxially connected with rotating rod, for transmitting the output power of second motor to stirring blade and U-shaped scraper, the outer wall of rotating rod and the position close to the bottom end are equipped with two stirring blades, and the liquid medicine is mixed horizontally by rotating, the outer wall of rotating rod and the position between two stirring blades are equipped with two connection cross bars that are symmetrically arranged left and right, for connecting and supporting U-shaped scraper, so that the scraper can stably operate, and the outer end of two connection cross bars is connected with U-shaped scraper, and the inner wall and bottom of liquid medicine stirring bucket are fitted, and the deposit is scraped, and the mixing uniformity is ensured.

[0010] Preferably, the bottom of the liquid medicine stirring barrel is provided with four matrix-arranged supporting legs for supporting the whole device and maintaining the stability of the device, and the bottom of the liquid medicine stirring barrel is provided with a valve-equipped liquid outlet pipe near the outer edge for controlling the discharge of the liquid medicine and facilitating the transfer of the liquid medicine to the next process.

[0011] Preferably, the front side of the rectangular cover body is provided with a heat dissipation hole near the top for reducing the heat generated by the motor during operation, and the heat dissipation hole is provided with a dust screen for preventing dust or foreign matter from entering the interior of the rectangular cover body and protecting the lifting member and the stirring member.

[0012] Preferably, the bottom of the outer wall of the rectangular cover body is provided with a frame-shaped mounting plate which is detachably connected to the top of the barrel cover through bolts, facilitating the installation and maintenance of the overall structure.

[0013] Preferably, the middle of the top of the barrel cover is provided with a sliding sleeve, and the bottom end of the rotating rod passes through the sliding sleeve into the liquid medicine stirring barrel for limiting the radial swing of the rotating rod and ensuring the stability during rotation.

[0014] Preferably, the top of the rectangular cover body is provided with a first bearing, and the output shaft of the first motor passes through the inner ring of the first bearing for supporting and fixing the output shaft of the first motor and ensuring its stable rotation.

[0015] Preferably, the lifting member further comprises a bottom plate for providing support for the threaded rod and the positioning vertical rod and ensuring the stability of the lifting movement, and the front and rear sides of the bottom plate are fixedly connected to the bottom of the inner wall of the rectangular cover body, and the bottom end of the threaded rod is rotatably connected to the top of the bottom plate, further improving the stability of the threaded rod.

[0016] Preferably, the top of the bottom plate is provided with a positioning vertical rod near the right side, the top end of the positioning vertical rod passes through the bottom of the moving plate and is fixedly connected to the top of the inner wall of the rectangular cover body, and the positioning vertical rod is used for limiting the lateral swing of the moving plate and ensuring the stability of the lifting member.

[0017] Preferably, the top of the moving plate is provided with a second bearing, and the output shaft of the second motor passes through the inner ring of the second bearing for supporting the output shaft of the second motor and ensuring its stable rotation.

[0018] Preferably, the outer side of the U-shaped scraper is in close contact with the inner wall of the liquid medicine stirring barrel, and when the bottom of the moving plate is in close contact with the top of the bottom plate, the bottom of the U-shaped scraper is in close contact with the bottom of the inner wall of the liquid medicine stirring barrel, and the residual substances at the bottom of the stirring barrel are effectively scraped off through the close movement of the U-shaped scraper, ensuring the uniformity of mixing.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The stirring structure of this injection solution preparation device, through the design of the lifting component, uses the first motor to drive the threaded rod to rotate, thereby driving the internal threaded tube and the moving plate to move up and down, so that the stirring component can move and stir in the vertical direction. Compared with the existing technology where the stirring blades only stir at a fixed height, it can effectively solve the problem of uneven mixing and stratification of the drug solution in the vertical direction, and greatly improve the mixing efficiency and uniformity of the drug solution.

[0021] 2. The stirring structure of this injection preparation device is equipped with a U-shaped scraper that fits against the inner wall of the drug solution mixing tank. This scrapes away deposits on the tank wall during stirring, preventing the drug solution from not being fully mixed due to sedimentation. At the same time, when the moving plate descends to the lowest point, the U-shaped scraper can effectively clean the bottom of the mixing tank, improving stirring efficiency and ensuring the purity and uniformity of the drug solution.

[0022] 3. The stirring structure of this injection solution preparation device effectively limits the lateral swaying of the moving plate by setting a positioning vertical rod on the base plate. At the same time, the setting of the sliding sleeve further ensures the radial stability of the rotating rod. The overall design ensures the stability of the stirring components during operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the assembly structure of the lifting component and the stirring component in this utility model;

[0027] In the diagram: 1. Mixing tank for medicinal liquid; 10. Support leg; 11. Discharge pipe; 2. Tank lid; 20. Feed pipe; 3. Rectangular cover; 30. Heat dissipation hole; 31. Dustproof net; 32. Frame-shaped mounting plate; 4. Lifting component; 40. Threaded rod; 41. First motor; 42. Internally threaded pipe; 43. Moving plate; 44. Positioning vertical rod; 45. Base plate; 46. First bearing; 5. Mixing component; 50. Second motor; 51. Rotating rod; 52. Mixing blade; 53. Connecting crossbar; 54. U-shaped scraper; 55. Second bearing; 6. Sliding sleeve. Detailed Implementation

[0028] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0029] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] Please refer to Figures 1-4 The present application provides a technical scheme:

[0031] The injection solution preparation device stirring structure comprises a liquid medicine stirring barrel 1, a main container for containing liquid medicine and solvent, providing space for stirring and mixing, a barrel cover 2 connected to the top flange of the liquid medicine stirring barrel 1, for sealing the liquid medicine stirring barrel 1 to prevent liquid medicine from leaking out or external contaminants from entering, a feeding pipe 20 with a cover provided at the top of the barrel cover 2 and close to the outer edge, for adding drug raw materials or solvent to the inside of the liquid medicine stirring barrel 1, and preventing external contaminants from entering through the sealing cover, and a rectangular cover body 3 provided at the top of the barrel cover 2, for protecting and mounting a lifting member 4 and a stirring member 5, and providing structural support for them;

[0032] The rectangular cover body 3 is provided with a lifting member 4 for driving the stirring member 5 to move up and down to realize sufficient mixing and stirring of the liquid medicine in the vertical direction, the lifting member 4 comprises a first motor 41 fixedly connected to the top of the rectangular cover body 3 to provide power for the lifting member 4 and drive the threaded rod 40 to rotate, the output shaft of the first motor 41 penetrates through the top of the rectangular cover body 3 and is coaxially connected with the threaded rod 40, the threaded rod 40 is connected with the inner threaded pipe 42 through rotation to drive the inner threaded pipe 42 to move up and down, thereby realizing the vertical movement of the stirring member 5, the outer wall of the threaded rod 40 is threadedly connected with the inner threaded pipe 42, the inner threaded pipe 42 converts the rotary motion of the threaded rod 40 into linear motion and is connected with a moving plate 43 to drive it to move up and down, the bottom end of the inner threaded pipe 42 is provided with the moving plate 43 for carrying the stirring member 5 and moving up and down with the inner threaded pipe 42 to realize up-down stirring;

[0033] The moving plate 43 is provided with the stirring piece 5 for mixing the liquid medicine in the liquid medicine stirring barrel 1 and scraping the deposits on the barrel wall. The stirring piece 5 comprises a second motor 50 fixedly connected to the top of the moving plate 43. The first motor 41 and the second motor 50 are both externally connected with a power supply and a controller for working. The second motor 50 provides rotating power for the stirring piece 5. The output shaft of the second motor 50 penetrates through the top of the moving plate 43 and is coaxially connected with a rotating rod 51 for transmitting the output power of the second motor 50 to the stirring blades 52 and the U-shaped scraper 54. Two stirring blades 52 are arranged on the outer wall of the rotating rod 51 and close to the bottom end for horizontally mixing the liquid medicine by rotating. Two connecting cross rods 53 are arranged on the outer wall of the rotating rod 51 and between the two stirring blades 52 for connecting and supporting the U-shaped scraper 54 so that the scraper can stably operate. The outer ends of the two connecting cross rods 53 are jointly connected with the U-shaped scraper 54 which is in close contact with the inner wall and the bottom of the liquid medicine stirring barrel 1 for scraping the deposits and ensuring the mixing uniformity.

[0034] In the embodiment, the bottom of the liquid medicine stirring barrel 1 is provided with four matrix-arranged supporting legs 10 for supporting the whole device and keeping the stability of the device. The bottom of the liquid medicine stirring barrel 1 and close to the outer edge is provided with a liquid outlet pipe 11 with a valve for controlling the discharge of the liquid medicine and facilitating the transfer of the liquid medicine to the next processing process.

[0035] Specifically, the front side of the rectangular cover body 3 and close to the top is provided with a heat dissipation hole 30 for reducing the heat generated by the operation of the motor inside the rectangular cover body 3. The heat dissipation hole 30 is provided with a dustproof net 31 for preventing dust or foreign matters from entering the inside of the rectangular cover body 3 and protecting the lifting piece 4 and the stirring piece 5.

[0036] Further, the bottom of the outer wall of the rectangular cover body 3 is provided with a frame-shaped mounting plate 32 which is detachably connected to the top of the barrel cover 2 by bolts. The frame-shaped mounting plate 32 is detachably connected to the top of the barrel cover 2 by bolts, facilitating the installation and maintenance of the overall structure.

[0037] Further, the middle part of the top of the barrel cover 2 is provided with a sliding sleeve 6. The bottom end of the rotating rod 51 penetrates through the sliding sleeve 6 into the liquid medicine stirring barrel 1 for limiting the radial swing of the rotating rod 51 and ensuring the stability in the rotating process.

[0038] Further, the top of the rectangular cover body 3 is provided with a first bearing 46. The output shaft of the first motor 41 penetrates through the inner ring of the first bearing 46 for supporting and fixing the output shaft of the first motor 41 and ensuring the stable rotation thereof.

[0039] Further, the lifting piece 4 further comprises a bottom plate 45 for providing support for the threaded rod 40 and the positioning vertical rod 44, ensuring the stability of the lifting movement, the front and back sides of the bottom plate 45 are fixedly connected to the bottom of the inner wall of the rectangular cover body 3, the bottom end of the threaded rod 40 is rotatably connected to the top of the bottom plate 45, further improving the stability of the threaded rod 40.

[0040] Further, the top of the bottom plate 45 is provided with the positioning vertical rod 44 near the right side, the top end of the positioning vertical rod 44 penetrates through the bottom of the moving plate 43 and is fixedly connected to the top of the inner wall of the rectangular cover body 3, the positioning vertical rod 44 is used for limiting the lateral shaking of the moving plate 43, ensuring the stability of the lifting piece 4.

[0041] Further, the top of the moving plate 43 is provided with the second bearing 55, the output shaft of the second motor 50 penetrates through the inner ring of the second bearing 55, for supporting the output shaft of the second motor 50, ensuring its stable rotation.

[0042] Further, the outer side of the U-shaped scraper 54 is attached to the inner wall of the liquid medicine stirring barrel 1, when the bottom of the moving plate 43 is attached to the top of the bottom plate 45, the bottom of the U-shaped scraper 54 is attached to the bottom of the inner wall of the liquid medicine stirring barrel 1, through the attachment movement of the U-shaped scraper 54, the residues at the bottom of the stirring barrel are effectively scraped off, ensuring the uniformity of the mixing.

[0043] When the injection solution preparation device stirring structure of the embodiment is used, the appropriate amount of liquid medicine raw materials and solvents are added into the liquid medicine stirring barrel 1 through the feeding pipe 20, ensuring that the added amount does not exceed the upper limit of the volume of the liquid medicine stirring barrel 1, then the sealing cover of the feeding pipe 20 is closed, the first motor 41 is started, the first motor 41 drives the threaded rod 40 to rotate in forward and reverse directions, driving the inner threaded pipe 42 and the moving plate 43 to move up and down, so that the stirring piece 5 moves and stirs in the vertical direction, at the same time, the second motor 50 is started, the second motor 50 drives the rotating rod 51 to rotate, thereby driving the stirring blade 52 and the U-shaped scraper 54 to perform stirring operation, the rotation of the stirring blade 52 horizontally mixes the liquid medicine, the U-shaped scraper 54 scrapes off the deposits on the inner wall and the bottom of the liquid medicine stirring barrel 1, preventing the uniformity of the liquid medicine from being affected by the deposition during the mixing process, at the same time, the stirring blade 52 and the U-shaped scraper 54 move in the vertical direction through the lifting piece 4, realizing the omnidirectional mixing of the liquid medicine, avoiding the stratification phenomenon, after the stirring is completed, the first motor 41 and the second motor 50 are turned off, the stirring operation is stopped, the valve of the liquid outlet pipe 11 is opened, the mixed liquid medicine is discharged from the liquid medicine stirring barrel 1, and is transferred to the next process flow, after the liquid discharge is completed, the valve of the liquid outlet pipe 11 is closed, ensuring that there is no residual liquid leakage, after the stirring is completed, the equipment needs to be cleaned, the barrel cover 2 is removed, the inner wall of the liquid medicine stirring barrel 1 is checked whether there is liquid medicine residue, the inner wall of the liquid medicine stirring barrel 1, the stirring blade 52 and the U-shaped scraper 54 are washed with clean water or appropriate cleaning agent, ensuring that there is no residual attachment.

[0044] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A stirring structure of a solution preparation device for injection, comprising a medicine solution stirring barrel (1), characterized in that: The top flange of the medicine liquid stirring barrel (1) is connected with a barrel cover (2), the top of the barrel cover (2) and the position close to the outer edge are provided with a feeding pipe (20) with a cover, the top of the barrel cover (2) is provided with a rectangular cover body (3), the rectangular cover body (3) is provided with a lifting piece (4), the lifting piece (4) comprises a first motor (41) fixedly connected to the top of the rectangular cover body (3), the output shaft of the first motor (41) penetrates the top of the rectangular cover body (3) and is coaxially connected with a threaded rod (40), the outer wall of the threaded rod (40) is threadedly connected with an internally threaded pipe (42), the bottom end of the internally threaded pipe (42) is provided with a moving plate (43), the moving plate (43) is provided with a stirring piece (5), the stirring piece (5) comprises a second motor (50) fixedly connected to the top of the moving plate (43), the output shaft of the second motor (50) penetrates the top of the moving plate (43) and is coaxially connected with a rotating rod (51), the outer wall of the rotating rod (51) and the position close to the bottom end are provided with two stirring blades (52), the outer wall of the rotating rod (51) and the position between the two stirring blades (52) are provided with two left and right symmetrically arranged connecting cross rods (53), and the outer ends of the two connecting cross rods (53) are commonly connected with a U-shaped scraper (54).

2. The injection solution preparation device stirring structure according to claim 1, characterized by: The bottom of the medicine liquid stirring barrel (1) is provided with four matrix-arranged supporting legs (10), and the bottom of the medicine liquid stirring barrel (1) and the position close to the outer edge are provided with a liquid outlet pipe (11) with a valve.

3. The injection solution compounding device stirring structure according to claim 1, characterized by: The front side of the rectangular cover body (3) and the position close to the top are provided with a heat dissipation hole (30), and the heat dissipation hole (30) is provided with a dustproof screen (31).

4. The injection solution compounding device stirring structure according to claim 1, characterized by: The bottom of the outer wall of the rectangular cover body (3) is provided with a frame-shaped mounting plate (32), and the frame-shaped mounting plate (32) is detachably connected to the top of the barrel cover (2) through bolts.

5. The injection solution compounding device stirring structure according to claim 1, characterized by: The top of the barrel cover (2) is provided with a sliding sleeve (6), and the bottom end of the rotating rod (51) penetrates the sliding sleeve (6) to the medicine liquid stirring barrel (1).

6. The injection solution compounding device stirring structure according to claim 1, characterized by: The top of the rectangular cover body (3) is provided with a first bearing (46), and the output shaft of the first motor (41) penetrates the inner ring of the first bearing (46).

7. The injection solution compounding device stirring structure according to claim 1, characterized by: The lifting piece (4) further comprises a bottom plate (45), the front and rear sides of the bottom plate (45) are fixedly connected to the bottoms of the front and rear sides of the inner wall of the rectangular cover body (3), and the bottom end of the threaded rod (40) is rotatably connected to the top of the bottom plate (45).

8. The injection solution preparation device stirring structure according to claim 7, characterized by: The top of the bottom plate (45) and the position close to the right side are provided with a positioning vertical rod (44), the top end of the positioning vertical rod (44) penetrates the bottom of the moving plate (43) and is fixedly connected to the top of the inner wall of the rectangular cover body (3).

9. The injection solution compounding device stirring structure according to claim 1, characterized by: The top of the moving plate (43) is provided with a second bearing (55), and the output shaft of the second motor (50) penetrates the inner ring of the second bearing (55).

10. The injection solution compounding device stirring structure according to claim 7, characterized by: The outer side of the U-shaped scraper (54) is attached to the inner wall of the medicine liquid stirring barrel (1), when the bottom of the moving plate (43) is attached to the top of the bottom plate (45), the bottom of the U-shaped scraper (54) is attached to the bottom of the inner wall of the medicine liquid stirring barrel (1).

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