JPH0225475Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention is a liquid mixing container, specifically, for example, in the field of chemical analysis of liquids, where several liters or less of liquid is stirred and the mixed liquid is arbitrarily mixed. The present invention relates to a liquid mixing container suitable for use in discharging and transferring.

(B) Prior art As a method for effectively stirring and mixing a small amount of liquid, a magnetic piece is placed at the bottom of a mixing container, and rotating magnetism is applied to the magnetic piece to rotate the magnetic piece inside the container. The magnetic stirring method, called stirring, has already been widely used in various fields, particularly in the field of liquid analysis and inspection. This conventional magnetic stirring method uses a simple mixing container such as a beaker or a mixing container 11 equipped with a drain pipe 12 on the bottom side, and The magnetic piece 3 to be placed, the rotating magnetism generating device 4 that applies rotating magnetism from the lower surface of the mixing container 11, and the mixing container 11 containing quite a plurality of types of liquids are placed on the rotating magnetism generating device 4, The rotating magnetism generator 4
is activated to apply its rotating magnetism to the magnetic piece 3 in the container 11, thereby rotating the magnetic piece 3 in a well-balanced manner on a horizontal plane and stirring the liquid in the container.

(c) Problems to be solved by the invention Conventional mixing vessel applied to magnetic stirring method 1
1 focuses exclusively on smoothing the rotation of the magnetic piece,
As shown in FIG. 5, the bottom surface 11A is bulged inward to support the magnetic piece 3 at its center 3G,
In addition, in a container with a horizontal bottom surface 11A as shown in FIG. 6, the magnetic piece 3 is tapered from the center toward both sides, so that the center portion 3G of the magnetic piece 3 is supported on the bottom surface 11A. It has been devised.
However, in such conventional mixing containers,
Although it is advantageous in that the resistance at the time of activation of the magnetic piece 3 can be reduced, the bottom surface 11 of the container 11
Since A is a flat surface or a bulging surface, the container 11
The discharge opening for discharging the liquid in A must necessarily be provided avoiding the center of the bottom surface 11A, which not only results in uneven drainage but also leaves a small amount of liquid 20 on the bottom surface 11A, causing damage to the container. The liquid in 11 cannot be completely and quickly drained.

(d) Means for solving the problem The present invention proposes a mixing container that can completely and quickly discharge the liquid after stirring without interfering with the rotation of the magnetic piece. In a liquid mixing container in which a magnetic piece is positioned at the bottom of the container and the container is placed on a rotating magnetic generation source to rotate the magnetic piece, as shown in FIG.
The inner bottom surface 1A of the mixing container 1 is formed into a mortar shape with a gentle slope, and a drainage opening 2A communicating with the drainage channel 2 is provided at the deepest part of the center of the bottom surface 1A, and a rod-shaped magnetic piece 3 is connected at both end portions 3A, 3A. It is configured to be supported on the slope of the bottom surface 1A.

The above-mentioned mixing container 1 is made of a material with excellent corrosion resistance, such as glass, and the magnetic piece 3 is preferably an iron piece whose surface is coated with fluororesin, and a shape other than a disk is preferable. Applicable. Further, a well-known magnetic stirring device is used as the rotating magnetism generating source.

(E) Effect When the magnetic piece 3 is placed on the bottom surface 1A of the container 1 and the rotating magnetism generator 4 is activated after filling the container 1 with liquid, the magnetic piece 3 moves its center of gravity to its center of rotation. The liquid in the container 1 is stirred by rotating as shown in FIG.
After the stirring is finished, that is, the rotating magnetism generating device 4
After stopping the operation, when drain channel 2 is opened, container 1
The liquid inside is discharged from the drain opening 2A, and the liquid is quickly drained without remaining on the bottom surface.

(F) Example A drain opening 2A with an outer diameter of 5 mm is provided in the center of the bottom surface 1A of a glass container 1 with an inner diameter of 80 mm and a height of 200 mm, and the bottom surface 1A of the container 1 is connected to the drain opening 2.
The opening 2A is formed into a mortar-shaped slope with a gentle slope of about 8 to 15 degrees toward A, and the opening 2A is connected to the drainage channel 2 equipped with the valve 2B. Rounded length 50mm diameter 5mm
The magnetic piece 3 was placed thereon to form a mixing container.

The upper opening of this mixing container 1 is sealed with a lid 5 holding a liquid supply pipe 6, a cleaning liquid spray pipe 7, and an exhaust pipe 8, and 400 c.c. of liquid is injected into the container 1 from the liquid supply pipe 6. After that, the rotating magnetism generator 4 is activated to generate a rotating magnetism of 300R/M to the magnetic piece 3.
was made to act. The magnetic piece 3 immediately started rotating to stir the internal liquid, and as the speed of the magnetic piece 3 increased, a stirring vortex similar to the conventional one was formed.

Next, the rotating magnetism generator 4 was stopped, and when the internal liquid became stationary, the valve 2B was opened to naturally drain the internal liquid into another container, and after about 2 minutes, all of the internal liquid was drained.

(g) Effect of the invention As described above, the mixing container of the invention has the bottom surface 1A of the container 1 shaped like a mortar with a gentle slope, and the drainage opening 2A communicating with the drainage channel 2 is provided in the center of the bottom surface 1A. As shown in FIG. 3, the magnetic piece 3 is configured to support the magnetic piece 3 on the slope of the bottom surface 1A at both ends thereof. Never get blocked. Therefore, the liquid in the container 1 can be drained smoothly and quickly from the drain opening 2A without leaving any residue, and it is possible to drain the liquid in the case where repeated mixing, stirring, draining, and washing are required. It is particularly advantageous as a mixing container in the field of chemical analysis and testing.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention, with Figure 1 being a front view, Figure 2 being a sectional view taken along line A-A in Figure 1, and Figure 3 being an enlarged vertical cross-section of the main part. 4 and 5 are explanatory diagrams showing the bottom portion of a conventional mixing container, and FIG. 6 is an explanatory diagram of a conventional improved magnetic piece. 1 is the mixing container, 1A is the bottom, 2 is the drainage channel, 2A
is the drainage opening, and 3 is the magnetic piece.

Claims (1)

[Scope of utility model registration request] In a liquid mixing container in which a magnetic piece is positioned at the bottom of the container and the container is placed on a rotating magnetic generation source to rotate the magnetic piece, the inner bottom surface of the container is arranged in a mortar with a gentle slope. What is claimed is: 1. A liquid mixing container characterized in that the container has a drain opening communicating with a drainage channel at the center of the bottom surface, and magnetic pieces are supported on the slopes of the bottom surface at both ends thereof.