JPS6246427Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a stirrer for stirring a liquid in a test tube.

<Problems to be solved by this invention> This type of stirrer is disclosed in Japanese Utility Model Publication No. 50-31010,
As described in Publication No. 55-51541, in addition to the method of stirring by holding a test tube and pressing it against a socket on an eccentrically rotating container, a holder is attached to the socket and both the top and bottom ends of the test tube are stirred. There is a type that stirs by holding the test tube in place, but the former is not suitable for long-time stirring work, and the latter requires you to turn off the switch and stop the rotation every time you change the test tube, and it is not suitable for stirring by holding the test tube in place. There is a problem in which scraps of the holder get mixed into the test tube due to vibrational friction between the holding holder and the test tube, and a solution to this problem is desired.

<Purpose of the invention> The present invention allows the test tube to be inserted into the lower receiving member from the upper part of the holder and pulled out.
The test tube can be replaced without stopping rotation, and the stirring condition can be checked during stirring, making it easier to handle the stirrer and eliminating the possibility of frictional debris from the holder getting into the test tube. This is what I did.

<Structure of the invention> The present invention attaches a deep-bottomed lower receiving member that rotates eccentrically with a buffer ring protruding from the upper inner surface of the upper surface of the stirrer body, and a test tube is placed on the lower receiving member. The upper holder is vertically adjustable and has a hole through which it can be inserted and a buffer ring provided on the inner surface of the hole.

<Example> Examples will be described below based on the drawings.

Figure 1 schematically shows the stirrer, which has a square trapezoidal stirrer body 1, a support 2 installed vertically from the side of the main body 1, and an upper holder 3 attached to the support 2 so as to be able to move up and down. The holder 3 is provided at its tip with a support hole 5 in which a buffer ring 4 for removably supporting the upper outer periphery of the test tube a projects from the inner surface. The upper surface of the stirrer main body 1 is provided with a deep-bottomed lower receiving member 7 with a buffer ring 6 protruding from the upper inner surface and a wider inner cavity under the ring 6 so as to rotate eccentrically. .

The lower support member 7 is connected to an eccentric rotation mechanism (not shown) powered by a motor provided inside the main body 1, and is rotated by operating a switch 8 provided on the front surface of the main body 1. Stop. 9 is a volume that increases or decreases the number of rotations.

The hole 4 of the upper holder 3 is set onto the lower receiving member 7.

The buffer rings 4 and 6 of the support hole 5 and the lower receiving member 7 are made of rubber O-rings 4 as shown in FIG.
A, 6a are fitted, or rubber plates 4b, 6b with holes are attached to the upper or lower surface of the support hole 5 and the upper surface of the lower receiving member 7, as shown in FIG.

The test tube a containing the sample liquid to be stirred is inserted from above the support hole 5 of the upper holder 3, and the lower part is dropped onto the lower receiving member 7 to be supported and then stirred.

<Effect of the invention> The support hole 5 and the lower receiving member 7 are connected to the buffer rings 4 and 6.
Since I attached it so that it was in contact with test tube a,
This prevents the test tube from being broken during insertion/removal of test tube a and stirring operations. Also, since the upper part of the newly inserted test tube a protrudes above the holder 3,
By picking up test tube a even during stirring,
You can take it out and check the degree of stirring without stopping the rotation, and you can replace it with another test tube.

In addition, since the lower support member 7 has a deep bottom shape and a buffer ring 6 is attached to the upper inner surface, the centrifugal force applied to the test tube a during stirring becomes a downward moment as shown in FIG. Since the weight of the test tube and internal sample liquid is also added, there are many effects in that the stirring operation can be continued stably without being swung outward and separated from the inside of the member 7.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the test tube stirrer of the present invention, Fig. 2 is an enlarged vertical sectional view of the main parts of the same, Fig. 3 is a plan view showing the action of centrifugal force during test tube agitation, Figure 4 is a vertical cross-sectional view of the main parts showing the second embodiment of the present invention;
The figure is a vertical cross-sectional view of the main parts of a conventional example, 1 is the stirrer body, 2 is the strut, 3 is the upper holder, 4 is the buffer ring, 5 is the support hole of the upper holder, 6 is the buffer ring, 7 is a lower receiving member, 8 is a switch, and 9 is a volume.

Claims (1)

[Scope of utility model registration request] A deep-bottomed lower support member with a buffer ring protruding from the upper inner surface is attached to the upper surface of the stirrer main body, which has an operating section on the front surface, so as to rotate eccentrically. A support is installed vertically, and an upper holder having a support hole with a buffer ring protruding from the inner surface for removably supporting the upper outer periphery of a test tube is attached to the support for vertical adjustment. Features a test tube stirrer.