JP3032663U - Liquid supply tool - Google Patents

Abstract

(57) Abstract: It is possible to suck an accurate amount of liquid without air being mixed into the liquid storage cylinder of the liquid supply tool. A liquid supply tool including a liquid containing cylinder (1) having a supply hole (2) formed in a bottom surface thereof, and a piston (3) hermetically inserted into an inner wall of the liquid containing cylinder (1), and a tip of the piston (3). Is provided with a convex portion 6 that fits into the supply hole 2.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a liquid supply tool for supplying a liquid such as water, tea, milk, juice, soup, or liquid medicine to the mouth of an infant or a sick person who is unable to move the body. The present invention relates to a liquid supply tool used for a liquid medicine and the like.

[0002]

[Prior art]

 A conventional liquid supply tool is composed of a liquid containing cylinder having a supply hole formed in a bottom surface thereof, and a piston hermetically inserted into an inner wall of the liquid containing cylinder.

[0003]

[Problems to be solved by the device]

 Infants and sick people who are unable to move the body always need someone's help when administering liquid medicines and eating, but liquids such as water, tea, milk, juice and soup are particularly spillable, Therefore, conventionally, the mouth of the liquid container of the liquid supply tool as described above is held and the liquid is injected into the mouth.

However, in the conventional liquid supply tool, when the mouth of the liquid containing cylinder with the piston fully inserted is thrust into the container containing the liquid and the piston is pulled to suck the liquid into the liquid containing cylinder through the supply hole, There is a small amount of air in the supply hole, and the air in the supply hole is first sucked together with the liquid into the liquid storage cylinder, so the amount of liquid in the liquid storage cylinder is larger than the scale by the amount of air. It will be less than the exact amount. In such a conventional liquid supply tool, it is not suitable to use a liquid medicine or the like which requires a precise amount.

From the above point of view, the present invention is intended to provide a liquid supply tool capable of sucking an accurate amount of liquid without air being mixed in the liquid container of the liquid supply tool. .

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the liquid supply device according to the present invention is a liquid supply device including a liquid storage cylinder having a supply hole formed in the bottom surface and a piston airtightly inserted into the inner wall of the liquid storage cylinder. The projection is provided at the tip of the piston so as to fit into the supply hole.

According to the present invention having such a configuration, when the piston is pushed fully, the supply hole is closed because the convex portion provided at the tip of the piston fits into the supply hole of the liquid storage cylinder. In this state, if the mouth of the liquid storage cylinder is thrust into the container containing the liquid and the piston is pulled to suck the liquid into the liquid storage cylinder from the supply hole, air will be mixed in because the supply hole is blocked. The inside of the liquid storage cylinder is filled only with the liquid, and the amount of the liquid can be accurately measured according to the scale.

[0008]

[Embodiment of device]

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional front view of a liquid supply tool of the present invention, FIG. 2 is an enlarged sectional view of an essential part showing a state in which a convex portion is fitted in a supply hole, and FIG. 3 and FIG. FIG. 4 is a cross-sectional view of a main part showing an embodiment of the above.

In the liquid supply tool shown in FIGS. 1 and 2, reference numeral 1 in the drawing denotes a transparent synthetic resin cylindrical liquid container having a bottom surface provided with a supply hole 2. A piston 3 made of synthetic resin, which is hermetically inserted into the inner wall of the liquid container 1 and sucks and pushes out the liquid, is provided in the liquid container 1.

The piston 3 is formed as a bottomed cylindrical body having an opening 4 on the upper surface, and a protrusion 5 is formed in a ring shape in the circumferential direction on the outer wall near the lower end thereof so as to be in close contact with the inner wall of the liquid containing cylinder 1. Has been done. A convex portion 6 having a shape that fits into the supply hole 2 is provided at the tip of the piston 3. Further, a scale (not shown) is displayed on the front and back of the outer wall of the piston 3.

Next, in FIG. 3, parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals. In the liquid supply tool shown in FIG. 3, the shape of the supply hole 2 of the liquid storage cylinder 1 is formed in a tapered shape with a downward constriction, and the tip of the piston 3 is provided with a convex portion 6 having a shape fitted into the supply hole. It is what

Further, in FIG. 4, the portions corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals. In the liquid supply tool of FIG. 4, the shape of the supply hole 2 of the liquid storage cylinder 1 is formed so as to protrude from the bottom surface, and the tip of the piston 3 is provided with the convex portion 6 having a shape that fits into the supply hole 2. There is something.

[0013]

[Effect of device]

 According to the present invention, when the liquid is sucked into the liquid storage cylinder of the liquid supply tool, the convex portion provided at the tip of the piston fits into the supply hole of the liquid storage cylinder and closes the supply hole. There is no air left, and therefore, unlike the conventional case, a small amount of air existing in the supply hole does not mix with the liquid in the liquid container. Therefore, since the liquid storage cylinder is filled with only the liquid, it is possible to accurately measure the amount of the liquid according to the scale, and it is suitable to use for a liquid drug or the like that requires the accuracy of the amount.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a liquid supply tool according to the present invention.

FIG. 2 is an enlarged cross-sectional view of an essential part showing the operation of the liquid supply device according to the present invention.

FIG. 3 is a cross-sectional view of essential parts showing another embodiment of the liquid supply device according to the present invention.

FIG. 4 is a cross-sectional view of essential parts showing another embodiment of the liquid supply tool according to the present invention.

[Explanation of symbols]

 1 Liquid Storage Cylinder 2 Supply Hole 3 Piston 4 Opening 5 Projection 6 Projection

Claims (1)

[Scope of utility model registration request] 1. A liquid container having a bottom surface provided with a supply hole,
And a liquid supply tool constituted by a piston airtightly inserted into the inner wall of the liquid storage cylinder, wherein the tip of the piston is provided with a convex portion that fits into the supply hole. Supply tool.