Liquid bag stirrer

Abstract

The utility model discloses a liquid bag stirrer which comprises a base, a rotating main body and a blade group, and the base is assembled on a liquid bag; a magnetic chamber is arranged on the base, a rotating chamber is arranged on the periphery of the magnetic chamber, an opening of the magnetic chamber faces the outside, and an opening of the rotating chamber faces the inside of the liquid bag; the rotating main body is embedded in the rotating chamber; and the blade group is arranged on the rotating main body. The stirring device has the beneficial effects that the structure is exquisite, the design is simple, mass production is convenient, the cost is low, the stirring structure is stable, and the stirring efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of stirring technology, and in particular to a liquid bag stirrer. Background Technology

[0002] Currently, in the biopharmaceutical preparation process, especially in the preparation of solutions containing sensitive proteins, a completely sterile environment must be maintained during stirring to reduce the risk of product contamination and cross-contamination. Therefore, disposable bioreactors are generally used in practice. To ensure sufficient supply of nutrients and feed solution to the cells within the bioreactor, disposable bioreactors are usually equipped with disposable stirring devices. Magnetic stirring devices are widely used because their stirring and driving parts are separated, which ensures smooth operation of the driving part while also maintaining the activity of biomass and the hygiene of the internal environment within the bioreactor. Therefore, it is necessary to develop a liquid bag stirrer. After searching, no technical solution identical to this invention was found. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a liquid bag agitator, which solves one or more of the above-mentioned problems in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a liquid bag agitator, the innovation of which lies in: including

[0005] The base is attached to the liquid bag.

[0006] The base is equipped with a magnetic chamber, and a rotating chamber is located around the magnetic chamber. The opening of the magnetic chamber faces outward, and the opening of the rotating chamber faces inward.

[0007] The rotating body is fitted into the rotating chamber;

[0008] The blade assembly is mounted on the rotating body.

[0009] In some embodiments, the base is further provided with an outwardly extending sealing edge at the outer edge of the rotating chamber opening.

[0010] In some embodiments, the rotating body includes a rotating ring and a top cover that closes one end of the rotating ring, the rotating ring having a built-in magnet.

[0011] In some implementations, the top cover is in the shape of an outwardly convex dome.

[0012] In some embodiments, a first limiting ring is provided on the inner side of the outer edge of the rotating chamber, and a second limiting ring is provided on the outer bottom edge of the rotating ring. The top surface of the first limiting ring is an inclined surface, and the bottom surface of the first limiting ring is a flat surface. The top surface of the second limiting ring is also an inclined surface, and the bottom surface of the second limiting ring is also a flat surface.

[0013] In some embodiments, the blade assembly consists of several stirring blades, and the angle between the blades of the stirring blades and the plane of the top cover is 104°-105°.

[0014] The beneficial effects of this utility model are: the technical solution has a compact structure, simple design, is easy to mass-produce, has low cost, stable stirring structure, and high stirring efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0016] Figure 1 This is an axial view of a liquid bag agitator according to this utility model.

[0017] Figure 2 This is an exploded view of a liquid bag agitator according to this utility model.

[0018] Figure 3 This is a cross-sectional view of a liquid bag agitator according to this utility model.

[0019] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0020] Figure 5 yes Figure 3 A magnified view of a portion of the image, b. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1 to 5As shown, this utility model embodiment includes: a liquid bag stirrer, comprising a base 100, a rotating body, and a blade assembly. The base 100 is mounted on a liquid bag; a magnetic chamber 102 is provided on the base 100, and a rotating chamber 103 is provided around the magnetic chamber 102. The rotating chamber 103 is annular in shape, with the opening of the magnetic chamber 102 facing outward and the opening of the rotating chamber 103 facing inward of the liquid bag; the rotating body is embedded in the rotating chamber 103; and the blade assembly is disposed on the rotating body. The working principle of the above structure is as follows: when stirring is required, the external magnetic rotator is inserted into the magnetic chamber 102, and the magnetic rotator begins to rotate. Since the rotating body is also magnetic, the rotating body will rotate along with the magnetic rotator, thereby driving the blades to start stirring the liquid in the liquid bag.

[0023] Specifically, the base 100 is provided with an outwardly extending sealing edge 104 at the outer edge of the opening of the rotating chamber 103. The sealing edge 104 in the above structure is used to connect and fix to the stirring port of the liquid bag. The sealing edge 104 increases the contact area with the liquid bag, thereby improving the sealing between the two and reducing the possibility of leakage of the contents of the liquid bag.

[0024] Specifically, the rotating body includes a rotating ring 201 and a top cover 202 that closes one end of the rotating ring 201. The rotating ring 201 contains a magnetic body 203. The top cover 202 is dome-shaped with an outward convex shape. In the above structure, the top cover 202 is designed in a dome shape to minimize the contact area between the top cover 202 and the rotating body, thereby minimizing the wear of the rotating body when it rotates and reducing structural losses.

[0025] Specifically, a first limiting ring 105 is provided on the inner side of the outer edge of the rotating chamber 103, and a second limiting ring 204 is provided on the outer bottom edge of the rotating ring 201. The top surface of the first limiting ring 105 is inclined, and the bottom surface of the first limiting ring 105 is flat. The top surface of the second limiting ring 204 is also inclined, and the bottom surface of the second limiting ring 204 is also flat. The design of the first limiting ring 105 and the second limiting ring 204 in the above structure can ensure that after the rotating ring 201 is embedded in the rotating chamber 103, the rotating ring 201 will not easily fall out of the rotating chamber 103, thus preventing the rotating body from leaving the stirring position during stirring.

[0026] Specifically, the blade assembly consists of several stirring blades 300. The angle between the blades of the stirring blades 300 and the plane where the top cover 202 is located is 104°-105°. In the above structure, the blade assembly consists of four stirring blades 300. The angle between the blades of the stirring blades 300 and the plane where the top cover 202 is located was designed through multiple experiments and demonstrations to obtain the optimal stirring angle, which can maximize the stirring efficiency.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A liquid bag agitator, characterized in that: include A base (100) is mounted on a liquid bag; The base (100) is provided with a magnetic chamber (102), and a rotating chamber (103) is provided around the magnetic chamber (102). The opening of the magnetic chamber (102) faces outward, and the opening of the rotating chamber (103) faces inward. A rotating body, which is fitted inside a rotating chamber (103); A blade assembly, which is mounted on the rotating body.

2. The liquid bag agitator according to claim 1, characterized in that: The base (100) is also provided with an outwardly extending sealing edge (104) at the outer edge of the opening of the rotating chamber (103).

3. The liquid bag agitator according to claim 1, characterized in that: The rotating body includes a rotating ring (201) and a top cover (202) that closes one end of the rotating ring (201). The rotating ring (201) has a built-in magnetic body (203).

4. The liquid bag agitator according to claim 3, characterized in that: The top cover (202) is in the shape of an outwardly convex dome.

5. A liquid bag agitator according to claim 1 or 3, characterized in that: The rotating chamber (103) has a first limiting ring (105) on the inner side of its outer edge, and the rotating ring (201) has a second limiting ring (204) on its bottom outer edge. The top surface of the first limiting ring (105) is a slope, and the bottom surface of the first limiting ring (105) is a plane. The top surface of the second limiting ring (204) is also a slope, and the bottom surface of the second limiting ring (204) is also a plane.

6. The liquid bag agitator according to claim 1, characterized in that: The blade assembly consists of several stirring blades (300), and the angle between the blades of the stirring blades (300) and the plane of the top cover (202) is 104°-105°.

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