JP2580250Y2 - Adapter for magnetic coupling of culture equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

The magnetic coupling adapter of the culture device according to the present invention is applied to a magnetic coupling of a culture device used for culturing various microorganisms, plant cells, etc., and is used for the inside of a culture tank or a culture solution. Heat sterilization can be performed efficiently.

[0002]

2. Description of the Related Art In order to culture various microorganisms and plant cells, a culture device called a bioreactor is widely used. FIG. 3 is a schematic diagram of such a culture device. Microorganisms and plant cells to be cultured together with the culture solution are put into the bottomed cylindrical culture tank 1, which is closed with a lid 2. In this state, the pH value, the oxygen concentration, the temperature, and the like are adjusted in the culture tank 1, and the culture operation is performed. The culture solution is continuously stirred by the stirring blade 3 during the culture operation.

The lower end of the stirring shaft 4 to which the stirring blade 3 is fixed is fixedly connected to the center of a driven permanent magnet 5 provided at the bottom of the culture tank 1. This driven permanent magnet 5
It is provided outside the culture tank 1 and faces a drive-side permanent magnet 7 that is rotationally driven by a motor 6. When the drive-side permanent magnet 7 is rotated by the motor 6, the stirring blade 3 rotates via the driven-side permanent magnet 5 and the stirring shaft 4,
The culture solution in the culture tank 1 is stirred.

FIG. 4 shows a main part of an actual culture apparatus. The culture tank 1 is provided with a bottom plate 9 having a lower end opening of a glass cylinder 8.
The stirring shaft 4 is closed by the bottom plate 9.
Is rotatably supported at the center of the upper surface. In addition, a circular convex portion 10 is provided on the lower surface of the bottom plate 9. Such a culture tank 1 is provided with a receiver 11 provided on the main body of the culture apparatus.
It can be mounted on the upper surface of the. And if you put it,
The convex portion 10 and the concave portion 12 on the upper surface of the mounting portion 11 are fitted to prevent the culture tank 1 from shifting and moving on the upper surface of the mounting portion 11. The drive-side permanent magnet 7 is provided directly below the recess 12.

[0005]

The magnet coupling adapter of the culturing apparatus of the present invention is used for culturing the inside of the culturing tank 1 of the culturing apparatus configured as described above or the culturing injected into the culturing tank 1. When the solution is heat-sterilized, heat is prevented from escaping from the culture tank 1 to the main body side on which the mounting portion 11 is provided, so that heat sterilization is performed efficiently.

When culturing microorganisms or the like using a culturing device, high-temperature steam is fed into the culturing tank 1 before feeding an object to be cultivated such as a microorganism into the culturing tank 1 before the culturing tank is charged. Heat sterilize the inner surface of
The culture solution injected into the inside is heated by a heater or the like, and the culture solution is heat-sterilized.

However, as shown in FIG. 4, when the lower surface of the bottom plate 9 of the culture tank 1 and the upper surface of the mounting portion 11 provided on the main body contact with a large area, the heat applied to the culture tank 1 is increased. Escapes to the mounting portion 11 side, so that the temperature of the culture tank 1 does not easily rise. As a result, there arise problems such as insufficient sterilization of the inner surface of the culture tank 1 and the culture solution or an excessively long sterilization time.

[0008] The magnet coupling adapter of the culture device of the present invention has been devised in view of the above-described circumstances.

[0009]

The magnet coupling adapter of the culture apparatus of the present invention comprises a main body having a mounting portion on an upper surface, a bottomed cylindrical culture tank which can be mounted on the mounting portion, Inside the main body, applied to a magnet coupling of a culture device having a drive-side permanent magnet provided directly below the placement section and a driven-side permanent magnet rotatably provided at the bottom of the culture tank. Then, the driven-side permanent magnet is rotated with the rotation of the driving-side permanent magnet in a state where the upper surface of the mounting portion is separated from the lower surface of the culture tank.

[0010] The magnetic coupling adapter of the present invention used as described above is provided with a lower plate that can be mounted on the upper surface of the mounting portion, and is provided in a state separated from the lower plate. An upper plate on which a tank can be placed, a connecting member connecting the upper plate and the lower plate, and having a cross-sectional area sufficiently smaller than the upper and lower plates, and freely rotatable between the lower plate and the upper plate. To
A transmission shaft provided in a vertical direction, a lower permanent magnet fixed to a lower end of the transmission shaft and capable of opposing the drive-side permanent magnet, and a lower permanent magnet fixed to an upper end of the transmission shaft; The magnet includes a magnet and an upper permanent magnet that can freely face the magnet.

[0011]

When the magnet coupling adapter of the culture apparatus of the present invention configured as described above is used, the lower plate is placed on the mounting portion of the main body, and the culture tank is placed on the upper surface of the upper plate. In this state, the upper surface of the driving permanent magnet and the lower surface of the lower permanent magnet face each other, and the upper surface of the upper permanent magnet and the lower surface of the driven permanent magnet face each other. Therefore, when the driving permanent magnet is rotated, the rotational force is transmitted to the driven permanent magnet via the lower permanent magnet, the transmission shaft, and the upper permanent magnet, and the driven permanent magnet rotates.

With an adapter interposed between the upper surface of the mounting portion and the lower surface of the culture tank, the upper surface of the mounting portion abuts on the lower surface of the lower plate, and the lower surface of the culture bath abuts on the upper surface of the upper plate. The upper plate and the upper plate are connected by a connecting member having a sufficiently smaller cross-sectional area than the upper and lower plates. Therefore, the heat transfer area from the upper plate to the lower plate is small, and the heat transferred from the culture tank to the upper plate is not easily transmitted to the lower plate.

As a result, the heat energy applied to the culture tank is effectively used for raising the temperature of the inner surface of the culture tank or the culture solution injected into the culture tank.

[0014]

1 and 2 show an embodiment of the present invention. A lower plate 13 that can be placed on the upper surface of the mounting portion 11 (FIG. 4) of the culture apparatus main body, and is provided in a state separated from the lower plate 13, and the culture tank 1 (FIGS. 3 and 4) is placed on the upper surface. The free upper plate 14
Each is made of a stainless steel plate or the like into a rectangular thick plate shape. At the center of the lower surface of the lower plate 13, a convex portion 15 that fits into the concave portion 12 on the upper surface of the mounting portion 11 is provided.
In the center of the upper surface of each of the above, a concave portion 16 for fitting the convex portion 10 on the lower surface of the culture tank 1 is formed. A circular hole 17 is formed at the center of the convex portion 15 and a circular hole 18 is formed at the center of the concave portion 16.

The lower plate 13 and the upper plate 14 are arranged in parallel with each other, and are connected to each other by four rods 19, 19, which are connecting members made of a material having poor heat conductivity such as synthetic resin. Have been. That is, the rods 19, 19 having their lower ends connected and fixed to the four corners of the lower plate 13, respectively.
Are inserted into small circular holes 20, 20 formed at the four corners of the upper plate 14, and nuts 21, 21 are formed at the upper ends of the rods 19, 19 at the portions protruding from the upper surface of the upper plate 14.
By screwing the lower plate 13 and the upper plate 14,
They are connected by four rods 19,19.

Support plates 22, 22 are screwed and fixed to the upper surface of the lower plate 13 and the lower surface of the upper plate 14, respectively. Bearings 23, 23 are provided at the central portions of the support plates 22, 22, respectively.
Are supported and fixed, and a pair of upper and lower bearings 23, 2
3, the upper and lower positions of the transmission shaft 24 are rotatably supported. The lower permanent magnet 25 fixed to the lower end of the transmission shaft 24 is rotatable inside the circular hole 17. Further, an upper permanent magnet 26 fixed to the upper end of the transmission shaft 24 is rotatable inside the circular hole 18.

When the magnet coupling adapter of the culture apparatus of the present invention configured as described above is used, the lower plate 13 is placed on the mounting portion 11 of the main body, and the culture tank 1 is placed on the upper surface of the upper plate 14. In this state, the upper surface of the drive-side permanent magnet 7 (FIGS. 3 and 4) provided on the main body side and the lower surface of the lower permanent magnet 25 face each other, and the upper surface of the upper permanent magnet 26 and the follower provided on the bottom of the culture tank 1 The lower surfaces of the side permanent magnets 5 (FIGS. 3 and 4) face each other.

Accordingly, when the driving permanent magnet 7 is rotated by the motor 6 (FIG. 3), the rotating force is transmitted to the driven permanent magnet via the lower permanent magnet 25, the transmission shaft 24, and the upper permanent magnet 26. The driven side permanent magnet 5 rotates the stirring blade 3 (FIGS. 3 and 4) provided in the culture tank 1.

With the adapter of the present invention interposed between the upper surface of the mounting portion 11 and the lower surface of the culture tank 1 as described above, the upper surface of the mounting portion 11 is in contact with the lower surface of the lower plate 13 and the culture tank. The lower surface of the lower plate 1 is in contact with the upper surface of the upper plate 14.
3 and the upper plate 14 are connected only by a plurality of rods 19, 19 made of a material having poor heat transfer, so that the heat transfer area from the upper plate 14 to the lower plate 13 is small, The heat transmitted from 1 to the upper plate 14 is hardly transmitted to the lower plate 13.

As a result, the heat energy applied to the culture tank 1 during the sterilization operation increases the temperature of the inner surface of the culture tank 1 or the temperature of the culture solution injected into the culture tank 1, so that the temperature is effectively increased. used. After the sterilization work, when performing the culture work,
Remove the adapter from between the receiver 11 and the culture tank 1,
The culture tank 1 may be directly mounted on the upper surface of the mounting section 11, or the adapter may be left as it is. If the adapter is left, it is possible to prevent the thermal energy applied to the culture tank 1 during the culturing operation from escaping to the main body.

The connecting member for connecting the lower plate 13 and the upper plate 14 can be plate-shaped, in addition to the rods 19 and 19 described above.

[0022]

[Effect of the Invention] The adapter for magnet coupling of the culture apparatus of the present invention is constructed and operates as described above, so that the heat sterilization of the inside of the culture tank and the culture solution can be reliably performed with little heat energy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing an assembled state.

FIG. 3 is a schematic longitudinal sectional view of a magnetic coupling of the culture device.

FIG. 4 is a longitudinal sectional view showing one example of a specific configuration.

[Explanation of symbols]

 Reference Signs List 1 culture tank 2 lid 3 stirring blade 4 stirring shaft 5 driven permanent magnet 6 motor 7 drive permanent magnet 8 cylinder 9 bottom plate 10 convex portion 11 mounting portion 12 concave portion 13 lower plate 14 upper plate 15 convex portion 16 concave portion 17, 18 Circular hole 19 Rod 20 Small circular hole 21 Nut 22 Support plate 23 Bearing 24 Transmission shaft 25 Lower permanent magnet 26 Upper permanent magnet

Claims (1)

(57) [Scope of request for utility model registration] 1. A main body having a mounting portion on an upper surface, a bottomed cylindrical culture tank that can be mounted on the mounting portion, and a drive provided inside the main body and directly below the mounting portion. Side permanent magnet,
The present invention is applied to a magnet coupling of a culture apparatus having a driven-side permanent magnet rotatably provided at the bottom of the culture tank, and in a state where an upper surface of the placement unit and a lower surface of the culture tank are separated from each other, An adapter for rotating the driven-side permanent magnet with the rotation of the drive-side permanent magnet, the lower plate being mounted on the upper surface of the mounting portion, and provided in a state separated from the lower plate, An upper plate on which the culture tank can be placed, and a connecting member that connects the upper plate and the lower plate and has a cross-sectional area sufficiently smaller than the upper and lower plates, and between the lower plate and the upper plate. A transmission shaft rotatably provided in the vertical direction, a lower permanent magnet fixed to the lower end of the transmission shaft and opposed to the drive-side permanent magnet, and fixed to an upper end of the transmission shaft. A culture apparatus comprising the driven permanent magnet and an upper permanent magnet that can freely face Gunetto coupling adapter.