Propeller type wall-scraping stirring kettle design mechanism for medicines

The pharmaceutical propeller-type scraper mixer, designed with flexible spiral components and pluggable columns, solves the problem of mixer height adaptability, achieves versatility and sealing, and improves drug quality and production efficiency.

CN223988381UActive Publication Date: 2026-03-13XIAN KANGHUA PHARM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The rigid structure of existing propeller-type stirred tanks cannot be adapted to changes in tank height, resulting in poor stirring and wall scraping effects, which affects drug quality and production efficiency.

Method used

A pharmaceutical propeller-type scraper-type mixing vessel is designed, which adopts a flexible spiral component and a plug-in sliding connection column, combined with a locking component, to achieve height adjustment and fixation, and enhance connection stability and sealing.

Benefits of technology

It improves the versatility and flexibility of the mixing vessel, ensures mixing effect, reduces material leakage and external pollution, and enhances production safety and hygiene.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medicine propeller type wall scraping stirring kettle design mechanism which comprises a stirring kettle, a flexible spiral piece attached to the inner wall of an inner cavity of the stirring kettle is arranged in the inner cavity of the stirring kettle, the two ends of the flexible spiral piece are respectively connected with a set of connecting rods, the two sets of connecting rods are connected with two sets of stand columns respectively, and the two sets of stand columns are in mutual plug-pull type sliding connection. The flexible spiral piece is arranged between the two sets of stand columns and can be locked in cooperation with the first locking assembly, the height of the flexible spiral piece can be adjusted by adjusting the distance between the two sets of stand columns, and a set of stirring blades are symmetrically installed on the two sides of each set of stand columns. The distance change of the stand columns can drive the connecting rods to move, then the two ends of the flexible spiral piece are stretched or contracted, the height adjustment of the flexible spiral piece is achieved, after the height is adjusted to the needed height, the first locking assembly is used for locking the distance between the two sets of stand columns, it is ensured that the distance between the stand columns is kept fixed in the stirring process, and therefore the height of the flexible spiral piece is fixed.
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Description

Technical Field

[0001] This utility model relates to the field of mixing tank technology, specifically a design mechanism for a pharmaceutical propeller-type scraper mixing tank. Background Technology

[0002] In the pharmaceutical industry, stirred tanks are key equipment in the drug production process. Their mixing effect directly affects the quality, uniformity, and production efficiency of the drugs. Propeller-type wall-scraping stirred tanks, as a common type of mixing equipment, not only promote uniform mixing of materials within the tank through the rotation of the propeller, but also effectively scrape off residues on the tank wall, preventing material adhesion and ensuring the continuity and stability of the production process.

[0003] However, most of the spiral components in existing technologies adopt a rigid structure design. While this design ensures the strength and stability of stirring to a certain extent, it lacks the necessary flexibility. Due to the production needs of different production batches or different drugs, the height of the mixing vessel may vary. The rigid spiral component cannot be adapted to the change in vessel height. As a result, when the vessel height is high or low, the spiral component may not be able to fully contact the vessel wall or material, affecting the stirring and wall scraping effect, resulting in uneven stirring and affecting the quality of the drug. Therefore, it is necessary to design a pharmaceutical propeller-type wall scraping stirring vessel design mechanism to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a design mechanism for a pharmaceutical propeller-type scraper-type stirring vessel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pharmaceutical propeller-type scraping wall stirring vessel design mechanism, including a stirring vessel, wherein the inner cavity of the stirring vessel is provided with a flexible spiral component that fits against its inner wall, each end of the flexible spiral component is connected to a set of connecting rods, the two sets of connecting rods are respectively connected to two sets of columns, the two sets of columns are mutually plugged and slidably connected, and can be locked with a first locking component, the height of the flexible spiral component can be adjusted by adjusting the distance between the two sets of columns, and a set of stirring blades are symmetrically installed on both sides of each set of columns.

[0006] Preferably, each of the two sets of columns has a set of limiting rods integrally formed at one end facing each other, the two sets of limiting rods are staggered and can be inserted into a set of columns that are not connected to them, and the first locking component is provided for the set of limiting rods inserted into each set of columns.

[0007] Preferably, the first locking component includes positioning holes and bolts. Each set of columns has multiple sets of positioning holes equidistantly provided on one side. One set of positioning holes can be penetrated by the bolts, and the bolts can be threadedly connected to a corresponding set of limiting rods.

[0008] Preferably, one set of the top columns is connected to the output end of the motor, the motor is mounted on the upper surface of the vessel lid, the vessel lid is plugged into and sealed to the top of the mixing vessel, and can be locked by a second locking component.

[0009] Preferably, the second locking assembly includes a screw, a connecting lug, and a nut. A set of the screws is installed at each extension of the outer wall of the vessel lid. The screws penetrate the corresponding connecting lugs on the outer wall of the mixing vessel, and each set of the screws is threadedly connected to a set of the nuts.

[0010] Preferably, the bottom end of the mixing vessel is provided with a discharge pipe, which can be sealed by a sealing member, and the sealing member is connected to the discharge pipe by a sealing thread.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The two ends of the flexible spiral component of this utility model are connected to two sets of columns respectively via connecting rods. These two sets of columns adopt a mutually pluggable sliding connection design, which allows the spacing between them to be flexibly adjusted. When it is necessary to adjust the height of the flexible spiral component, the operator can manually change the spacing between the two sets of columns. Since the connecting rod is connected to the column, the change in the spacing of the column will drive the connecting rod to move, thereby stretching or contracting the two ends of the flexible spiral component to achieve its height adjustment. After adjusting to the required height, the spacing between the two sets of columns is locked using the first locking component to ensure that the columns maintain a fixed spacing during the stirring process, thereby fixing the height of the flexible spiral component. The design of the flexible spiral component gives it a certain stretching capacity, which can be adapted to different vessel heights. This design breaks the limitations of traditional rigid spiral components in height adaptation and improves the versatility and flexibility of the stirring vessel.

[0013] 2. The staggered arrangement of the limiting rod and the column, along with the design of the first locking component, significantly enhances the connection stability and fixing effect between the columns compared to the traditional unidirectional locking structure. This design allows the mixing components to maintain a stable operating state during high-speed rotation, reducing vibration and shaking, and improving the mixing effect. The design of multiple positioning holes makes the column spacing adjustment more flexible, allowing for quick adjustment according to different vessel heights and mixing requirements. This flexibility enables the mixing vessel to adapt to various production scenarios, improving the equipment's versatility and adaptability. The vessel lid and the top of the mixing vessel are connected by a plug-in sealing connection and locked by the second locking component, ensuring sealing during the mixing process. This design prevents material leakage and external contamination, improving production safety and hygiene.

[0014] 3. The lid and the mixing vessel of this utility model are sealed together by the synergistic action of the screw, connecting lug and nut. This connection method is tight and reliable, which can effectively prevent material leakage and external pollution. The sealing threaded connection between the sealing component and the discharge pipe also ensures the sealing effect of the discharge pipe, further improving the sealing performance of the mixing vessel. The design of the screw and nut makes the connection and locking process between the lid and the mixing vessel simple and quick, reducing the difficulty of operation. The threaded connection between the sealing component and the discharge pipe is also easy to disassemble and assemble, making it convenient to discharge the material after the mixing is completed. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view (I) of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point B;

[0018] Figure 4 This is a cross-sectional view (II) of the overall structure of this utility model;

[0019] Figure 5 This is a side-view diagram of the overall structure of this utility model;

[0020] Figure 6 This is a side-view diagram of the overall structure of this utility model.

[0021] In the diagram: 1. Mixing vessel, 2. Flexible spiral component, 3. Connecting rod, 4. Column, 5. Limiting rod, 6. Positioning hole, 7. Bolt, 8. Mixing blade, 9. Motor, 10. Vessel cover, 11. Screw, 12. Connecting lug, 13. Nut, 14. Discharge pipe, 15. Sealing component. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please refer to Figure 1-6 As shown, this utility model provides a design mechanism for a pharmaceutical propeller-type scraping wall stirring vessel, including a stirring vessel 1. The inner cavity of the stirring vessel 1 is provided with a flexible spiral component 2 that fits against its inner wall. Each end of the flexible spiral component 2 is connected to a set of connecting rods 3. The two sets of connecting rods 3 are respectively connected to two sets of columns 4. The two sets of columns 4 are mutually plugged and slidably connected and can be locked with the first locking component. The height of the flexible spiral component 2 can be adjusted by adjusting the distance between the two sets of columns 4. A set of stirring blades 8 are symmetrically installed on both sides of each set of columns 4.

[0025] The two ends of the flexible spiral component 2 are connected to two sets of columns 4 via connecting rods 3. These two sets of columns 4 are designed with a plug-in sliding connection, allowing the spacing between them to be flexibly adjusted. When the height of the flexible spiral component 2 needs to be adjusted, the operator can manually change the spacing between the two sets of columns 4. Since the connecting rods 3 are connected to the columns 4, the change in the spacing of the columns 4 will cause the connecting rods 3 to move, thereby stretching or contracting the two ends of the flexible spiral component 2 to achieve height adjustment. After adjusting to the desired height, the first locking component is used to lock the spacing between the two sets of columns 4, ensuring that the columns 4 maintain a fixed spacing during the stirring process, thus fixing the height of the flexible spiral component 2.

[0026] When the flexible spiral component 2 rotates inside the mixing vessel 1, its design that fits the inner wall of the vessel effectively scrapes away residues on the vessel wall and prevents materials from sticking. At the same time, the stirring blades 8 symmetrically installed on both sides of each set of columns 4 can also stir the materials during rotation, promoting uniform mixing. The design of the flexible spiral component 2 gives it a certain tensile capacity, which can be adapted to different vessel heights. This design breaks the limitations of traditional rigid spiral components in height adaptation and improves the versatility and flexibility of the mixing vessel 1.

[0027] Specifically, each of the two sets of columns 4 has a set of limiting rods 5 integrally formed at one end opposite to each other. The two sets of limiting rods 5 are staggered and can be inserted into a set of columns 4 that are not connected to them. Each set of columns 4 is provided with a first locking component corresponding to the inserted set of limiting rods 5. The first locking component includes positioning holes 6 and bolts 7. Multiple sets of positioning holes 6 are equally spaced on one side of each set of columns 4. One set of positioning holes 6 can be penetrated by bolts 7, and bolts 7 can be threadedly connected to the corresponding set of limiting rods 5. The top set of columns 4 is connected to the output end of motor 9. Motor 9 is installed on the upper surface of the lid 10. The lid 10 is plugged into the top of the mixing vessel 1 and sealed. It can be locked by the second locking component.

[0028] Each of the two sets of columns 4 has a set of integrally formed limiting rods 5 at one end facing each other. These two sets of limiting rods 5 are staggered, allowing them to be inserted into the columns 4 that are not directly connected to each other. This design not only enhances the connection stability between the columns 4 but also provides a basis for subsequent height adjustment and locking. After the limiting rods 5 are inserted into the columns 4, the operator can adjust the spacing of the columns 4 as needed, aligning a set of positioning holes 6 with the threaded holes on the limiting rods 5. Then, the bolts 7 are passed through the positioning holes 6 and threadedly connected to the limiting rods 5, thereby locking the spacing of the columns 4 and fixing the height of the flexible spiral component 2. After starting the motor 9, its output end drives the entire column 4 to rotate, which in turn drives the flexible spiral component 2 and the stirring blades 8 to rotate, realizing the stirring and wall scraping functions.

[0029] The staggered arrangement of the limit rod 5 and the column 4, along with the design of the first locking component, significantly enhances the connection stability and fixing effect between the columns 4 compared to the traditional unidirectional locking structure. This design allows the stirring components to maintain a stable operating state during high-speed rotation, reducing vibration and shaking, and improving the stirring effect. The design of multiple positioning holes 6 makes the spacing adjustment of the columns 4 more flexible, allowing for quick adjustment according to different vessel heights and stirring requirements. This flexibility enables the stirring vessel 1 to adapt to various production scenarios, improving the equipment's versatility and adaptability. The vessel cover 10 is connected to the top of the stirring vessel 1 using a plug-in sealing connection and is locked by the second locking component, ensuring sealing during the stirring process. This design prevents material leakage and external contamination, improving production safety and hygiene.

[0030] The second locking assembly includes a screw 11, a connecting lug 12, and a nut 13. A set of screws 11 is installed at each extension of the outer wall of the vessel cover 10. The screws 11 penetrate the corresponding connecting lugs 12 on the outer wall of the mixing vessel 1, and each set of screws 11 is threadedly connected to a set of nuts 13. A discharge pipe 14 is provided at the bottom of the mixing vessel 1. The discharge pipe 14 can be sealed by a sealing member 15, and the sealing member 15 is threadedly connected to the discharge pipe 14.

[0031] A set of screws 11 is installed at each extension of the outer wall of the vessel lid 10. These screws 11 serve as key components for connection and locking. When the vessel lid 10 is plugged into the mixing vessel 1, the screws 11 penetrate the corresponding connecting lugs 12 on the outer wall of the mixing vessel 1. After penetration, a set of nuts 13 are threaded onto each set of screws 11. By tightening the nuts 13, a fastening force is generated between the screws 11 and the connecting lugs 12, thereby achieving a sealed connection and locking between the vessel lid 10 and the mixing vessel 1.

[0032] The bottom of the mixing vessel 1 is equipped with a discharge pipe 14 for discharging materials after mixing. The discharge pipe 14 can be sealed by a sealing member 15. The sealing member 15 and the discharge pipe 14 are connected by a sealing thread. When it is necessary to close the discharge pipe 14, simply screw the sealing member 15 into the threaded hole of the discharge pipe 14 to achieve the sealing effect.

[0033] The lid 10 and the mixing vessel 1 are sealed together by the coordinated action of the screw 11, the connecting lug 12 and the nut 13. This connection method is tight and reliable, which can effectively prevent material leakage and external pollution. The sealing threaded connection between the sealing component 15 and the discharge pipe 14 also ensures the sealing effect of the discharge pipe, further improving the sealing performance of the mixing vessel 1. The design of the screw 11 and the nut 13 makes the connection and locking process between the lid 10 and the mixing vessel 1 simple and quick, reducing the difficulty of operation. The threaded connection between the sealing component 15 and the discharge pipe 14 is also easy to disassemble and assemble, making it convenient to discharge the material after the mixing is completed.

[0034] Working principle: Each of the two sets of columns 4 has a set of limiting rods 5 integrally formed at one end facing each other. These two sets of limiting rods 5 are staggered, allowing them to be inserted into the columns 4 that are not directly connected to each other. This design not only enhances the connection stability between the columns 4, but also provides a basis for subsequent height adjustment and locking. After the limiting rods 5 are inserted into the columns 4, the operator can adjust the spacing of the columns 4 as needed, aligning a set of positioning holes 6 with the threaded holes on the limiting rods 5. Then, the bolts 7 are passed through the positioning holes 6 and threadedly connected to the limiting rods 5, thereby locking the spacing of the columns 4 and fixing the height of the flexible spiral component 2. After starting the motor 9, its output end drives the entire column 4 to rotate, which in turn drives the flexible spiral component 2 and the stirring blades 8 to rotate, realizing the stirring and wall scraping functions. The lid 10... Each extension of the outer wall is fitted with a set of screws 11. These screws 11 are key components for connection and locking. When the lid 10 is plugged into the mixing vessel 1, the screws 11 penetrate the corresponding connecting ears 12 on the outer wall of the mixing vessel 1. After penetration, a set of nuts 13 are threaded onto each set of screws 11. By tightening the nuts 13, a fastening force is generated between the screws 11 and the connecting ears 12, thereby achieving a sealed connection and locking between the lid 10 and the mixing vessel 1. The bottom end of the mixing vessel 1 is provided with a discharge pipe 14 for discharging materials after mixing. The discharge pipe 14 can be sealed by a sealing member 15. The sealing member 15 and the discharge pipe 14 are connected by a sealing thread. When it is necessary to close the discharge pipe 14, simply screw the sealing member 15 into the threaded hole of the discharge pipe 14 to achieve the sealing effect.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pharmaceutical propeller-type wall-scraping stirred tank design mechanism comprising a stirred tank (1), characterized by: The inner cavity of the stirring kettle (1) is provided with a flexible spiral (2) attached to the inner wall thereof, both ends of the flexible spiral (2) are connected with a set of connecting rods (3), both sets of connecting rods (3) are connected with two sets of vertical columns (4) respectively, both sets of vertical columns (4) are connected in a plug-in and pull-out mode and can be locked by cooperating with a first locking assembly, the spacing of both sets of vertical columns (4) can adjust the height of the flexible spiral (2), and a set of stirring blades (8) is symmetrically installed on both sides of each set of vertical columns (4).

2. A pharmaceutical propeller type wall scraping agitator design mechanism as claimed in claim 1, wherein: The opposite end of each set of vertical columns (4) is integrally formed with a set of limiting rods (5), both sets of limiting rods (5) are arranged in an interlaced mode and can be inserted into a set of vertical columns (4) not connected therewith, and the first locking assembly is arranged on each set of limiting rods (5) inserted into a corresponding set of vertical columns (4).

3. A pharmaceutical propeller type wall scraping agitator design mechanism as claimed in claim 2, wherein: The first locking assembly comprises positioning holes (6) and bolts (7), a plurality of positioning holes (6) are equidistantly formed on one side of each set of vertical columns (4), one set of positioning holes (6) can be penetrated by the bolt (7), and the bolt (7) can be threadedly connected with a corresponding set of limiting rods (5).

4. A pharmaceutical propeller type wall scraping agitator design mechanism according to claim 3, characterized in that: The top set of vertical columns (4) is connected with the output end of a motor (9), the motor (9) is installed on the upper surface of a kettle cover (10), the kettle cover (10) is connected with the top end of the stirring kettle (1) in a plug-in and pull-out mode and can be locked by a second locking assembly.

5. A pharmaceutical propeller type wall scraping agitator design mechanism as claimed in claim 4, wherein: The second locking assembly comprises a screw rod (11), a connecting lug (12) and a nut (13), each set of screw rods (11) is installed on the extension of the outer wall of the kettle cover (10), the screw rod (11) penetrates the corresponding connecting lug (12) on the outer wall of the stirring kettle (1), and each set of screw rod (11) is threadedly connected with a set of nuts (13).

6. A pharmaceutical propeller type wall scraping agitator design mechanism according to claim 5, characterized in that: The bottom end of the stirring kettle (1) is provided with a discharge pipe (14), the discharge pipe (14) can be blocked by a blocking piece (15), and the blocking piece (15) is sealingly and threadedly connected with the discharge pipe (14).