JP2015038426A - Liquid quantitative extraction tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid quantitative extraction tool capable of quantitatively extracting liquid stored in a liquid container with a simple operation.SOLUTION: An extraction cylinder 11 having an elbow 12 detachably connected to a port part 2 of a liquid container 1 at one end part is permitted to have a flowing of liquid toward a tip end extraction port of the extraction cylinder 11, and is incorporated with a check valve 13 for preventing the flowing of the liquid toward the liquid container and an operation valve 15 in the downstream side of the check valve 13. A flow passage from an outlet passage of the check valve 13 to an inlet passage of the operation valve 15 is used as a liquid accumulation part 20, and the liquid inside the liquid container 1 is accumulated in the liquid accumulation part 20 by tilting of the liquid container 1. The operation valve 15 is opened, and the accumulated liquid inside the liquid accumulation part 20 is discharged from an outlet of the operation valve 15 by re-tilting of the liquid container 1.

Description

  The present invention relates to a liquid quantitative extraction tool used for quantitative extraction of a liquid such as a chemical solution filled in a container.

  Since the liquid gargle contained in the container has a predetermined amount to be used, it is transferred to another container for use. In addition to gargles, liquids such as medicinal solutions contained in containers are often taken or used after a fixed amount is taken out.

  In taking out the liquid in the container in a fixed amount, for example, taking out using a measuring cup with a scale as described in Patent Document 1 is generally performed.

JP 2011-106865 A

  By the way, when taking out a fixed amount of liquid using a measuring cup, it is necessary to slowly pour the liquid in the container into the measuring cup. Sometimes, too much is taken out and needs to be returned. There is an inconvenience.

  An object of the present invention is to provide a liquid quantitative extraction tool that allows a liquid contained in a liquid container to be quantitatively extracted by a simple operation.

  In order to solve the above-described problems, in the present invention, an extraction tube having an L-shaped connecting tube portion detachably connected to the mouth portion of the liquid container is directed to the leading end extraction port of the extraction tube. A check valve that allows all liquid flow and prevents flow toward the liquid container, and an operating valve downstream of the check valve, and is connected from the outlet passage of the check valve to the inlet passage of the operating valve. The structure which made the flow path to reach the liquid storage part was employ | adopted.

  In the liquid quantitative extractor having the above-described configuration, when the liquid contained in the liquid container is quantitatively extracted, the set state of the liquid quantitative extractor in which the connecting tube portion at one end of the extraction tube is connected to the mouth of the liquid container The liquid container is tilted so that the closed operation valve is at the bottom.

  Due to the tilting of the liquid container, the liquid stored in the liquid container flows into the extraction cylinder, the check valve is opened by the flowing liquid, and flows through the check valve to enter the operation valve from the liquid reservoir. It reaches the passage and the liquid reservoir is entirely filled with liquid.

  Therefore, once the liquid container is returned to the standing state, the liquid in the liquid storage portion is prevented from flowing back to the liquid container side by the check valve, and the liquid in the inlet passage of the check valve is returned to the liquid container. After that, by opening the operation valve and tilting the liquid container again so that the outlet of the operation valve faces downward, only the fixed amount of liquid stored in the liquid reservoir is discharged from the outlet of the operation valve, and the fixed amount of liquid is taken out. It is said.

  Here, as the operation valve, a valve having a hose connection cylinder at the outlet is adopted, and when a flexible tube is detachably connected to the hose connection cylinder, a fixed amount of liquid can be extracted from the flexible tube. When taking the chemical solution, a fixed amount of the chemical solution can be taken to a bedridden sick person.

  In the present invention, as described above, the liquid can flow into the liquid reservoir by tilting the liquid container, and the liquid reservoir can be filled with the liquid, and can be held in the reservoir state by the check valve. After that, when the operation valve is opened, and the liquid container is tilted again, only the liquid in the liquid reservoir flows out from the outlet of the operation valve, so that a fixed amount of liquid can be extracted by a simple operation.

Partially cutaway front view of the liquid quantitative extractor according to the present invention set in the mouth of the liquid container Circuit diagram of FIG. Partially cutaway front view with flexible tube connected to the outlet of the operation valve

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a state in which the liquid quantitative extraction tool 10 according to the present invention is set in the mouth 2 of the liquid container 1. The liquid quantitative extractor 10 has an extraction cylinder 11, and an elbow 12 serving as a connection cylinder is provided at one end of the extraction cylinder 11. The elbow 12 is detachably connected to the mouth portion 2 of the liquid container 1 through a screwing means.

  As shown in FIGS. 1 and 2, a check valve 13 is connected to the extraction cylinder 11, a nipple 14 is screwed into an outlet portion of the check valve 13, and an operation valve 15 is connected to the nipple 14 by screwing. .

  The check valve 13 allows the liquid in the liquid container 1 to flow toward the operation valve 15 and prevents the liquid from flowing toward the liquid container 1.

  The operation valve 15 is of a manual type and has an operation lever 16 that is opened and closed by rotating the operation lever 16. The operation valve 15 has a hose connection tube 17 at the outlet, and a flexible tube 18 can be connected to the hose connection tube 17 as shown in FIG.

  A flow path from the outlet passage of the check valve 13 to the inlet passage of the operation valve 15 is a liquid reservoir 20. The volume of the liquid storage unit 20 can be changed by replacing the nipple 14 with a nipple 14 having a different length.

  The liquid quantitative extractor 10 shown in the embodiment has the above-described structure. When the liquid contained in the liquid container 1 is taken out, the liquid quantitative extractor 10 is set in the mouth 2 of the liquid container 1. In the state, the liquid container 1 is tilted so that the operation valve 15 is positioned downward. At this time, the operation valve 15 is kept closed.

  Due to the tilting of the liquid container 1, the liquid stored in the liquid container 1 flows into the extraction cylinder 11, the check valve 13 is opened by the flowing liquid, and flows through the check valve 13 to flow through the liquid storage unit 20. To the inlet passage of the operation valve 15, and the liquid reservoir 20 is entirely filled with liquid.

  Therefore, once the liquid container 1 is returned to the standing state, the liquid in the liquid storage unit 20 is prevented from flowing back to the liquid container 1 side by the check valve 13, and the liquid in the inlet passage of the check valve 13 is liquid. Returned into the container 1. Thereafter, the operation valve 15 is opened by the operation of the operation lever 16, and the liquid container 1 is tilted again so that the outlet of the operation valve 15 faces downward, whereby the fixed amount of liquid stored in the liquid reservoir 20 is operated. The liquid is discharged from the 15 hose connection cylinders 17 and a fixed amount of liquid is taken out.

  Here, when the liquid container 1 is tilted again, if the tilt angle becomes too large, the liquid inside flows into the extraction cylinder 11, flows out from the hose connection cylinder 17 of the operation valve 15 through the check valve 13, Liquid exceeding the set amount will flow out. For this reason, when the liquid container 1 is tilted again, it is tilted at an inclination angle at which the liquid inside does not flow into the extraction cylinder 11. At this time, if an L-shaped elbow 12 is provided at the end of the extraction tube 11, the tilt angle when the liquid container 1 is tilted again can be increased.

  When the flexible tube 18 is detachably connected to the hose connection cylinder 17 of the operation valve 15 at the time of taking out a fixed amount of the liquid as described above, a fixed amount of liquid can be extracted from the flexible tube 18, so that the bedridden when taking a liquid medicine. A certain amount of medicinal solution can be taken to the sick.

DESCRIPTION OF SYMBOLS 1 Liquid container 2 Mouth part 11 Extraction cylinder 12 Elbow (connection cylinder part)
13 Check valve 15 Operation valve 17 Hose connection cylinder 18 Flexible tube 20 Liquid reservoir

Claims (2)

  An extraction tube having an L-shaped connecting tube portion detachably connected to the mouth portion of the liquid container at one end allows the liquid to flow toward the tip extraction port of the extraction tube and is directed toward the liquid container. A liquid quantitative extractor incorporating a check valve for preventing the flow of gas and an operation valve downstream of the check valve, and having a flow path from the outlet passage of the check valve to the inlet passage of the operation valve as a liquid reservoir.   The liquid quantitative extraction tool according to claim 1, wherein the operation valve has a hose connection tube at an outlet, and a flexible tube is detachably connected to the hose connection tube.

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