JPH0448523Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dispenser for dispensing agar, gelatin, or other solutions that tend to gel at room temperature into a shear dish or the like in fixed quantities at high speed.

[Conventional technology]

In recent years, research in biotechnology and genetic engineering has become active, but in experiments associated with these research and technological developments, for example, when forming a sterile, quantitative agar medium in Sheare, etc., conventionally, gelatinized Put the agar-filled can into a hot bath, etc., dissolve and sterilize it, and then dispense it from the can into each jar one by one, or inhale the dissolved and sterilized agar using a syringe with the metal needle removed. Then, he dispensed it to the chef.

[Problems that the invention aims to solve] However, with the method described above, if air bubbles form in the agar medium or the agar gels in the outlet of the medicine can or syringe during dispensing, it becomes difficult to perform quantitative injection. Not only is this impossible, but the work is done manually, which is inefficient.
When a conventionally known dispenser is used, there is a problem in that the agar gels in the suction pipe and the discharge pipe, making it difficult for the valve mechanism to operate properly.

[Means for solving problems]

The present invention solves the problems of the conventional technology as described above, and provides a dispenser that can quickly dispense dissolved and sterilized agar in order to form a sterile, quantitative agar medium in a shear dish, etc. It was designed for the purpose of dispensing, and its structure is such that the cylinder is equipped with a suction pipe and a discharge pipe that are equipped with a valve mechanism, and a piston is inserted into the cylinder.The pipe is connected to the upper end of the cylinder. A connecting rod is connected to the upper part of the piston so that the connecting rod can move up and down within the connecting cylinder, and a suitable position in the middle of the connecting cylinder is connected to the lid of the container for storing the dispensed liquid. The discharge pipe is tightly attached to the body, and the upper end side of the discharge pipe protrudes above the lid to be tightly supported, and
The container is characterized in that the lid is tightly attached to the container.

[Effect]

That is, the dispenser of the present invention disposes a portion of a suction pipe and a discharge pipe, which are equipped with a piston, a cylinder, and a valve mechanism, in a container for storing a liquid to be dispensed. Since the dispensed liquid and these liquids are kept at approximately the same temperature, it is possible to prevent the dispensed liquid from gelling inside the tube, and the dispensed liquid can be rapidly and sequentially quantified by the pressure by the piston and suction and discharge by the valve mechanism. It can be dispensed and does not generate air bubbles on the agar medium.

〔Example〕

Next, an example of implementation of the present invention will be explained with reference to the drawings.

1 is a container containing an agar solution to be dissolved and dispensed into a petri dish; 2 is a lid; 3 is a cylinder; 4
5 is a suction pipe connected to the cylinder 3, and 5 is a discharge pipe.The suction pipe 4 and the discharge pipe 5 are provided with valve mechanisms V1 and V.
2 are installed inside.

6 is a piston inserted into the cylinder 3, 7 is a connecting tube connected to the upper end of the cylinder 3, 8 is a connecting rod connected to the upper end of the piston 6, and 9 is integrally provided to the upper end of the connecting rod. Operation panel, 8a, 8b, 8
c are quantitative protrusions provided at intervals of 90 degrees in the circumferential direction of the connecting rod 8 and at appropriate intervals in the length direction;
7a is a stopper provided on the upper end side of the connecting tube 7;
The intermediate side in the height direction of the connecting tube 7 is tightly attached to the lid 2 by passing through it, and the upper end side of the discharge pipe 5 is made to protrude from the lid 2 and is tightly supported by the support member 10. A lid 2 is tightly attached to the container 1 by a clip C.

The metering protrusions 8a, 8b, and 8c are used to determine the amount of liquid to be dispensed, and by engaging each with the stopper 7a from below, the piston 6
It is possible to regulate the stroke of the piston 6 and determine the amount of liquid to be sucked in and discharged by the vertical movement of the piston 6. For example, when the uppermost protrusion 8a is engaged with the stopper 7a, A small amount is 5 ml, a medium amount is 10 ml when the protrusion 8b is engaged, and a large amount is 20 ml when the protrusion 8c is engaged.

11 is a spouting pipe to be connected to the upper end of the discharge pipe 5, and the connection part between the discharge pipe 5 and the spouting pipe 11 is the spouting pipe 11.
In order to facilitate the operation, it is usually formed into a ball joint shape 12 and is integrated with a clip C1.

13 is an air suction pipe that also serves as a liquid supply pipe attached to the lid body 2; 14 is a magnetic stirrer; and 15 is an agar solution; the magnetic stirrer 14 rotates this in the container to homogenize the agar solution 15. It is for stirring.

Now, if one of the metering protrusions 8a, 8b, 8c is engaged with the stopper 7a depending on the amount of agar solution to be dispensed and the operation panel 9 is pressed, the connecting rod 8 and the piston 6 is lowered, and while the piston 6 is lowering, the agar solution 15 in the cylinder 3 is sent into the discharge pipe 5, and is supplied to a shear dish etc. from the spout pipe 11 connected to the tip of the discharge pipe 5. When the pressing force of the operation panel 9 is released, the piston 6 rises due to the repulsive force of the spring S, and the agar solution 15 is supplied into the cylinder 3 through the suction pipe 4.

Therefore, by repeatedly pressing and releasing the operation panel 9, a fixed amount of the agar solution 15 is continuously dispensed.

The dispensing device of the present invention, which is constructed as described above, is configured such that an appropriate amount of water and agar are put into a container 1, heated in an autoclave to form an agar solution 15, and sterilized. After stirring homogeneously, operate the operation panel 9 to set the metering protrusion to the amount to be dispensed, engage the stopper 7a, and press and release the operation panel 9 as described above to dispense the agar. The solution 15 is dispensed in fixed amounts from a pouring pipe into a shear dish, etc., and the cylinder 3 and suction pipe 4 are all located within the container 1, and most of the discharge pipe 5 is also located within the container 1. Since their temperature is the same as that of the agar solution 15, there is no risk that the agar solution 15 will gel inside them. Dispensing becomes possible, and the work can be done extremely efficiently.

When the agar solution 15 has cooled down, the container 1 can be autoclaved again.
By placing the agar solution 15 in a hot bath to prevent it from cooling, it can be dispensed at a constant temperature whenever necessary.

When the dispensing work is completed, boiling water is quickly poured into the container 1 from the air suction pipe 13 which also serves as a liquid supply pipe, and if the dispensing operation is repeated and washed, it can be used as is next time. It is.

[Effect of idea]

Since the present invention is as described above, it is suitable as a dispenser used for dispensing an agar solution into a shear dish or the like to form an agar medium.

[Brief explanation of drawings]

The figure is a longitudinal sectional front view of an embodiment of the dispenser of the present invention. 1... Container, 2... Lid, 3... Cylinder, 4
... Suction pipe, 5 ... Discharge pipe, 6 ... Piston, 7
...Connecting tube, 8...Connecting rod, 9...Operation panel, 10
... Support member, 11 ... Pour tube, 15 ... Agar solution.

Claims (1)

[Scope of utility model registration request] In a dispenser in which a cylinder is integrally provided with a suction pipe and a discharge pipe equipped with a valve mechanism, and a piston is fitted into the cylinder, a connecting cylinder is connected to the upper end of the cylinder, and a connecting rod is connected to the upper part of the piston. so that the connecting rod can move up and down within the connecting cylinder, and a suitable middle part of the connecting cylinder is tightly attached to the lid of the container for storing the dispensed liquid, and the upper end side of the discharge pipe is The dispenser is characterized in that the lid is closely supported by protruding from the lid, and the lid is tightly attached to the container.