Disposable magnetic stirring device for regulating pH value in virus inactivation

Abstract

The utility model relates to the technical field of magnetic stirring, in particular to a disposable magnetic stirring device for regulating the pH value for virus inactivation, which can regulate the area of blades, improve the stirring effect and ensure the use effect. Comprising a magnetic base, a stirring part, a positioning and clamping assembly and a placing assembly, the placing assembly is installed at the bottom of the magnetic base for supporting, the positioning and clamping assembly is installed at the top of the magnetic base for fixing a container, and the stirring part is located above the magnetic base.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic stirring, in particular to a disposable magnetic stirring device for virus inactivation and pH adjustment. Background Art

[0002] Inactivation refers to a treatment method of using heat or chemicals such as formaldehyde, acetone, phenol, etc. to kill pathogenic viruses, bacteria or other microorganisms to make inactivated vaccines. Currently, most use chemicals to inactivate viruses and bacteria. When these chemicals are processed, various materials need to be mixed by stirring. A magnetic stirrer is an instrument that uses the characteristic of like poles of magnetic substances repelling each other, and drives the magnetic stir bar to rotate by continuously changing the polarity of both ends of the base, and then drives the sample to rotate by relying on the rotation of the magnetic stir bar to make the sample evenly mixed. The disposable magnetic stirrer proposed in the prior art publication number CN207187649U is arranged in a stirring tank and includes an impeller, blades, a rotor, a disposable biobag and a driving unit; wherein a plurality of mutually attracting permanent magnets are arranged in the impeller and the rotor; the impeller is sleeved on the bottom welding plate of the disposable biobag; the blades are arranged in the disposable biobag and are detachably installed on the impeller; the rotor is arranged outside the disposable biobag and is fixed below the outside of the bottom welding plate of the disposable biobag; the driving unit is connected to the rotor. However, the area size of the blades cannot be adjusted, and it is easy to turn over when placed in the liquid, affecting the use. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a disposable magnetic stirring device for virus inactivation and pH adjustment, which can adjust the area of the blades, improve the stirring effect and ensure the use effect.

[0004] A disposable magnetic stirring device for virus inactivation and pH adjustment of the utility model includes a magnetic base, a stirring component, a positioning and clamping component and a placement component. A placement component is installed at the bottom of the magnetic base for support, and a positioning and clamping component is installed at the top of the magnetic base to fix the container. The stirring component is located above the magnetic base; after placing the stirring component into the container, place the container on the top of the magnetic base, and fix the container through the positioning and clamping component to make the container in the central position of the magnetic base to ensure the use effect. Start the cooperation of the magnetic base and the stirring component to drive the sample to rotate to make the sample evenly mixed. The magnetic base can be reused, and the stirring component is a consumable. The stirring component can adjust the area of the blades, thereby improving the stirring effect.

[0005] Preferably, the stirring component includes a rotor, a plurality of springs, a plurality of hollow stirring blades, and a plurality of arc-shaped plates. The upper and lower sides of the rotor are symmetrically arranged in a conical shape. Axially, a plurality of telescopic cavities are formed on the outer wall of the rotor. The hollow stirring blades are slidably installed in the telescopic cavities. Springs are installed inside the hollow stirring blades, and the other ends of the springs are connected to the inside of the telescopic cavities. Arc-shaped plates are installed at the outer ends of the hollow stirring blades. When the rotor is placed inside the container, due to the conical shape of the upper and lower sides of the rotor, the contact area with the bottom of the container can be reduced during rotation, the friction force can be lowered, and at the same time, flipping can be avoided. When the magnetic base drives the rotor to rotate, a centrifugal force is generated. As the centrifugal force increases, the tensile force of the spring can be overcome, so that the hollow stirring blades extend out in the telescopic cavities, adjusting the stirring area of the rotor, thereby improving the stirring effect.

[0006] Preferably, the positioning and clamping component includes a positioning retaining ring, two sliding rods, two positioning clamping plates, and an adjusting component. The positioning retaining ring is installed on the top of the magnetic base. Two sliding rods are symmetrically and slidably installed at the left and right ends of the positioning retaining ring. Positioning clamping plates are installed at the opposite ends of the two sliding rods. The positioning and clamping component includes a positioning retaining ring, two sliding rods, two positioning clamping plates, and an adjusting component. The positioning retaining ring is installed on the top of the magnetic base. Two sliding rods are symmetrically and slidably installed at the left and right ends of the positioning retaining ring. Positioning clamping plates are installed at the opposite ends of the two sliding rods.

[0007] Preferably, the adjusting component includes two support arms, a rotating rod, a knob, two adjusting plates, and two pushing plates. The two support arms are installed on the side walls at the left and right ends of the magnetic base. An adjusting chute is formed inside the support arm. The rotating rod is rotatably installed inside the magnetic base. The left and right ends of the rotating rod are rotatably installed in the adjusting chute and are provided with threaded grooves. The left end of the rotating rod passes through the adjusting groove and is installed with a knob. The adjusting plate is slidably installed in the adjusting chute and is screwed on the outer wall of the rotating rod. A pushing plate is installed at the top of the adjusting plate. The pushing plate is connected to the sliding rod. Rotating the knob drives the rotating rod to rotate. The rotating rod drives the adjusting plate to move in the adjusting chute. The adjusting plate drives the two sliding rods to move simultaneously through the pushing plate, positioning the container so that the container is located at the central position, ensuring the stirring effect.

[0008] Preferably, the placing component includes a plurality of legs and a plurality of friction plates. The plurality of legs are axially installed at the bottom of the magnetic base. Friction plates are installed at the bottoms of the legs. The magnetic base is supported by the legs and the friction plates. The friction plates increase the contact area and friction force with the placing surface, ensuring the stability during use.

[0009] Preferably, an adjustment switch is installed at the front end of the magnetic base, limit sliders are installed at the rear parts of the left and right side walls of the hollow stirring blade, limit chutes are opened at the left and right ends of the telescopic cavity, and the limit sliders are slidably installed in the limit chutes; the magnetic field of the magnetic base can be adjusted through the adjustment switch, so as to adjust the rotation speed of the rotor, which is applicable to different stirring requirements. When the hollow stirring blade extends out in the telescopic cavity, it drives the limit slider to move in the limit chute to limit and guide it.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: after placing the stirring component into the container, place the container on the top of the magnetic base, fix the container through the positioning and clamping component, so that the container is in the central position of the magnetic base to ensure the use effect. Start the cooperation of the magnetic base and the stirring component to drive the sample to rotate, so that the sample is evenly mixed. The magnetic base can be reused, and the stirring component is a consumable. The stirring component can adjust the area of the blade, thereby improving the stirring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is an axonometric structural diagram of the present utility model;

[0013] Figure 3 is a partial sectional structural diagram of the present utility model;

[0014] Figure 4 is a front sectional structural diagram of the present utility model;

[0015] Figure 5 is a structural diagram of the rotor of the present utility model;

[0016] Reference numerals in the drawings: 1, magnetic base; 2, positioning retaining ring; 3, support arm; 4, rotating rod; 5, knob; 6, adjusting plate; 7, pushing plate; 8, sliding rod; 9, positioning clamping plate; 10, rotor; 11, spring; 12, hollow stirring blade; 13, arc plate; 14, limit slider; 15, adjustment switch; 16, support leg; 17, friction plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present utility model is thorough and complete.

[0018] Such as Figures 1 to 5As shown in the figure, multiple legs 16 are axially installed at the bottom of the magnetic base 1. A friction plate 17 is installed at the bottom of the legs 16. The rotor 10 is located above the magnetic base 1. The upper and lower sides of the rotor 10 are symmetrically arranged in a conical shape. Multiple telescopic cavities are axially formed on the outer wall of the rotor 10. The hollow stirring blades 12 are slidably installed in the telescopic cavities. A spring 11 is installed inside the hollow stirring blades 12. The other end of the spring 11 is connected to the inside of the telescopic cavity. An arc plate 13 is installed at the outer end of the hollow stirring blades 12. The positioning retaining ring 2 is installed on the top of the magnetic base 1. Two slide rods 8 are symmetrically and slidably installed at the left and right ends of the positioning retaining ring 2. A positioning clamping plate 9 is installed at the opposite ends of the two slide rods 8. Two support arms 3 are installed on the side walls at the left and right ends of the magnetic base 1. An adjustment chute is formed inside the support arms 3. A rotating rod 4 is rotatably installed inside the magnetic base 1. The left and right ends of the rotating rod 4 are rotatably installed in the adjustment chute and are provided with threaded grooves. The left end of the rotating rod 4 passes through the adjustment groove and is installed with a knob 5. An adjustment plate 6 is slidably installed in the adjustment chute and is screwed on the outer wall of the rotating rod 4. A push plate 7 is installed at the top of the adjustment plate 6. The push plate 7 is connected to the slide rod 8. An adjustment switch 15 is installed at the front end of the magnetic base 1. Limiting sliders 14 are installed at the rear parts of the left and right side walls of the hollow stirring blades 12. Limiting chutes are formed at the left and right ends inside the telescopic cavities. The limiting sliders 14 are slidably installed in the limiting chutes;

[0019] The magnetic base 1 is supported by the legs 16 and the friction plate 17. The friction plate 17 increases the contact area and friction force with the placement surface to ensure stability during use. When the rotor 10 is placed inside the container, since the upper and lower sides of the rotor 10 are arranged in a conical shape, it can reduce the contact area with the bottom of the container during rotation, reduce the friction force, and avoid flipping at the same time. When the magnetic base 1 drives the rotor 10 to rotate, a centrifugal force is generated. As the centrifugal force increases, it can overcome the tension of the spring 11, so that the hollow stirring blades 12 extend out in the telescopic cavities, adjusting the stirring area of the rotor 10, thereby improving the stirring effect. The container is placed inside the positioning retaining ring 2. The slide rods 8 are pushed to make the two positioning clamping plates 9 approach each other to clamp the container and ensure stability. The knob 5 is rotated to drive the rotating rod 4 to rotate. The rotating rod 4 drives the adjustment plate 6 to move in the adjustment chute. The adjustment plate 6 drives the two slide rods 8 to move simultaneously through the push plate 7 to position the container so that the container is located at the central position to ensure the stirring effect. The magnetic base 1 is started to cooperate with the stirring component to drive the sample to rotate, so that the sample is evenly mixed. The magnetic field of the magnetic base 1 can be adjusted through the adjustment switch 15, thereby adjusting the rotation speed of the rotor 10 to meet different stirring requirements. When the hollow stirring blades 12 extend out in the telescopic cavities, the limiting sliders 14 are driven to move in the limiting chutes to limit and guide them.

[0020] As Figures 1 to 5As shown, a disposable magnetic stirring device for virus inactivation and pH adjustment of the present utility model, when in operation, places the rotor 10 into a container, and places the container inside the positioning retaining ring 2. Rotate the knob 5 to drive the rotating rod 4 to rotate. The rotating rod 4 drives the adjusting plate 6 to move within the adjusting sliding groove. The adjusting plate 6 drives two sliding rods 8 to move simultaneously through the pushing plate 7 to position the container, making the container located at the central position. The magnetic field of the magnetic base 1 can be adjusted through the adjusting switch 15. The magnetic base 1 cooperates with the rotor 10 to drive the sample to rotate, enabling the sample to achieve uniform mixing. Since the upper and lower sides of the rotor 10 are conical, the contact area with the bottom of the container can be reduced during rotation, reducing the friction force. When the magnetic base 1 drives the rotor 10 to rotate, a centrifugal force is generated. As the centrifugal force increases, the tension of the spring 11 can be overcome, causing the hollow stirring blade 12 to extend out within the telescopic cavity, adjusting the stirring area of the rotor 10, thereby improving the stirring effect.

[0021] The magnetic base 1, rotor 10, and adjusting switch 15 of a disposable magnetic stirring device for virus inactivation and pH adjustment of the present utility model are purchased on the market. Those skilled in the industry only need to install and operate according to the attached user manual, without the need for creative labor from those skilled in the art.

[0022] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A disposable magnetic stirring device for virus inactivation to adjust pH, characterized in that, It includes a magnetic base (1), a stirring component, a positioning and clamping assembly, and a placement assembly. A placement assembly is installed at the bottom of the magnetic base (1) for support, a positioning and clamping assembly is installed at the top of the magnetic base (1) to fix the container, and the stirring component is located above the magnetic base (1).

2. The disposable magnetic stirring device for virus inactivation and pH adjustment according to claim 1, wherein The stirring component includes a rotor (10), a plurality of springs (11), a plurality of hollow stirring blades (12), and a plurality of arc-shaped plates (13). The upper and lower sides of the rotor (10) are symmetrically arranged in a conical shape. A plurality of telescopic cavities are axially formed on the outer wall of the rotor (10). The hollow stirring blades (12) are slidably installed in the telescopic cavities. Springs (11) are installed inside the hollow stirring blades (12), and the other ends of the springs (11) are connected to the inside of the telescopic cavities. Arc-shaped plates (13) are installed at the outer ends of the hollow stirring blades (12).

3. A disposable magnetic stirring device for virus inactivation and pH adjustment as described in claim 1, characterized in that, The positioning and clamping assembly includes a positioning retaining ring (2), two sliding rods (8), two positioning clamping plates (9), and an adjusting assembly. The positioning retaining ring (2) is installed at the top of the magnetic base (1). Two sliding rods (8) are symmetrically and slidably installed at the left and right ends of the positioning retaining ring (2). Positioning clamping plates (9) are installed at the opposite ends of the two sliding rods (8).

4. The disposable magnetic stirring device for virus inactivation and pH adjustment according to claim 3, characterized in that, The adjusting assembly includes two support arms (3), a rotating rod (4), a knob (5), two adjusting plates (6), and two push plates (7). The two support arms (3) are installed on the side walls at the left and right ends of the magnetic base (1). Adjusting chutes are formed inside the support arms (3). The rotating rod (4) is rotatably installed inside the magnetic base (1). The left and right ends of the rotating rod (4) are rotatably installed in the adjusting chutes and are provided with threaded grooves. The left end of the rotating rod (4) passes through the adjusting groove and is installed with a knob (5). The adjusting plates (6) are slidably installed in the adjusting chutes, and the adjusting plates (6) are screwed on the outer wall of the rotating rod (4). Push plates (7) are installed at the tops of the adjusting plates (6), and the push plates (7) are connected to the sliding rods (8).

5. A disposable magnetic stirring device for virus inactivation and pH adjustment according to claim 1, characterized in that, The placement assembly includes a plurality of legs (16) and a plurality of friction plates (17). The plurality of legs (16) are axially installed at the bottom of the magnetic base (1), and friction plates (17) are installed at the bottoms of the legs (16).

6. The disposable magnetic stirring device for virus inactivation and pH adjustment according to claim 2, wherein It also includes an adjusting switch (15) installed at the front end of the magnetic base (1). Limiting sliders (14) are installed at the rear parts of the left and right side walls of the hollow stirring blades (12). Limiting chutes are formed at the left and right ends inside the telescopic cavities, and the limiting sliders (14) are slidably installed in the limiting chutes.

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