JPH0646843Y2 - Variable type liquid dispenser - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention relates to a variable type liquid dispenser capable of metering and distributing a contained liquid in a fixed amount of several levels.

"Prior Art" As a so-called liquid dispenser, various types of dispensing means have been conventionally provided. In one of them, a container body mouth neck is fitted with an inner plug provided with a suction pipe that hangs down inside the container body, and a cap screwed to the mouth neck is provided with a piston fitted into the inner plug, There is a metering means for compressing and sending air into the container body through the piston when the cap is tightened and attached, and removing the cap to take out the liquid to the outside through the suction pipe by the amount of the sent air.

[Problems to be solved by the invention] According to the above means, there is an advantage that the measured value can be quantified with a relatively simple structure, but the conventional means of this means can measure only one level of the measured value, There is an inconvenience that the quantification cannot be changed.

The present invention is to obtain a convenient variable liquid dispenser that can measure and distribute a stored liquid into a fixed amount of several levels by a simple means and expand the utilization.

[Means for Solving the Problem] The variable liquid dispenser of the present invention is configured such that an upward circumferential groove is provided between the container body 1 and the lower peripheral edge of the peripheral wall 7 of the inverted cup-shaped main portion 6 and the outer surface of the peripheral wall 7. The mounting tube 9 forming 8 is attached to the main portion 6
It is folded up to the upper side, and is fitted inside the mouth / neck portion 10 of the container body 1 through the mounting cylinder 9, and a suction pipe 12 penetrating the container body 1 from the upper bottom 11 of the main portion 6 is hung. Two
A cylindrical cylinder 3 that is vertically slidably fitted in the upward circumferential groove 8 of the inner plug 2, a cap 4 that is screwed onto the outer surface of the mouth / neck portion 10, and is integrally provided with the cap 4. A piston 5 which is airtightly fitted in the cylinder 3.
It consists of and.

[Operation] In the above, when the cap 4 screwed onto the outer surface of the mouth / neck portion 10 of the container body 1 is tightened, the piston 5 slides airtight downward in the cylinder 3, and the air is compressed and sent into the container body 1. The air in the empty space in the upper part of the container body 1 has a high pressure.

Next, when the cap 4 is removed at the time of weighing, the piston 5 is separated from the upper bottom 11 of the inner plug 2 and is removed in the same body. At this time, the space formed between the piston 5 and the upper bottom 11 is empty in the container body 1. Since it is a negative pressure relative to the air pressure at the location a, the liquid inside the container body 1 is pressed by the high pressure air at the location b, and the upper bottom of the inner plug 2 passes through the suction pipe 12.
It is sucked to the outside on 11. This liquid suction is performed by the container body 1
It continues until the air pressure in the inner space b is equilibrated to the atmospheric pressure, in other words, the amount of air forcedly sent into the container body 1 is sucked up to the outside, and a fixed amount of liquid is measured. .

The amount of air compressed and sent into the container body 1 is
In FIG. A, it is a portion below the level “b” at which the piston 5 blocks the inside of the cylinder 3 from the outside air.

Here, since the cylinder 3 can be slid up and down, when it is slid upward as shown in FIG.
Changes like "b '" and can measure a large quantity and a small quantity of 2 quantities. If the level "b '" is set to be twice that of "b", for example, if the measured value is 0.5 cc in FIG. 1a, it can be changed to a measured value of 1.0 cc in FIG. 1b.

[Embodiment] An embodiment will be described below with reference to the drawings. In the present invention, the liquid measuring level is set to the amount of air sent by being compressed into the container body 1 by the piston 5 integrated with the cap 4. Cylinder 3 that can slide up and down
Is provided for sliding the piston 5, and the measuring level can be changed by the vertical displacement of the cylinder 3.

The container body 1 has threads formed on the outer surface of the mouth / neck portion 10.

The inner plug 2 is formed from the peripheral edge of the lower end of the peripheral wall 7 of the inverted cup-shaped main portion 6,
A mounting cylinder 9 forming a deep upward circumferential groove 8 between the outer surface of the peripheral wall 7 and the main portion 6 is folded back and raised, and is fitted into the mouth neck 10 through the mounting cylinder 9. In this case, the outward flange provided on the upper end of the mounting tube 9
13 is hung on the mouth neck 10 via the packing 14. There is a hole 15 in the center of the upper bottom 11 of the main part 6,
A connecting cylinder 16 is hung from the rear surface around the hole 15, and a suction pipe 12 is provided which communicates the upper end with the connecting cylinder 16 and hangs downward in the container body 1. Further, an upper portion of the peripheral habit 7, Engagement grooves 17 and 18 are provided on the outer surface of the lower portion. The cylindrical cylinder 3 is a straight cylinder and has an outwardly facing flange 19 provided at the upper end thereof, a pouring port 20 serving also as a knob is provided upright from the top surface of the flange 19, and an engaging projection 21 is provided at the inner peripheral surface of the lower end. It projects and is fitted in the upward circumferential groove 8 so as to be slidable up and down. Figure 1a
, The engaging projection 21 is engaged with the engaging groove.
The engaging projection 21 engages with the engaging recessed groove 17 when engaged with 18 and pulled up as shown in FIG.

The cap 4 is screwed to the outer surface of the mouth / neck portion 10 by screwing the thread groove on the inner surface of the lower portion of the peripheral wall 22 into the thread, and is attached to the central portion of the back surface.
A mounting tube 23 is hung so as to hang down to near the upper bottom 11 of the inner plug 2. An engaging projection 24 is provided on the inner surface of the lower portion of the mounting cylinder 23.

The piston 5 is provided with an elastic peripheral wall 26 having an arc-shaped cross section at a peripheral edge of a base plate 25, and the elastic peripheral wall 26 is arranged in pressure contact with the inner wall surface of the cylinder 3 so as to be capable of sliding up and down in an airtight manner. 25 A coupling cylinder 27 is erected from the upper surface, the coupling cylinder 27 is fitted into the lower portion of the mounting cylinder 23, and an engagement projection 28 provided on the outer surface of the upper portion is engaged with the engagement projection 24 to cap the cap. 4, the base plate 25 comes into close contact with the upper surface of the upper bottom 11 of the inner plug 2 when the cap 4 is fully tightened.

Therefore, when the piston 5 is fitted with the cap 4 and tightened, air in the lower portion from the upper end "B" of the straight cylindrical portion of the cylinder 3 is compressed and sent into the container body 1 in the example of FIG. 1a. When the cap 4 is removed, the piston 5 is also removed, so that the liquid defined by the level "b" can be dispensed and measured. Then, cylinder 3
Since it can be slid and displaced up and down, if it is pulled up as shown in FIG. 1b, it can be taken as large as the weighing level "b '" and can be divided into two fixed amounts having different measured values.

In the above description, an example of the two-quantity variable type is given, but it is also possible to use the variable hair of two or more quantitative amounts. Further, the above-mentioned respective parts are molded and manufactured by a synthetic resin material.

[Advantage of the Invention] As described above, in the present invention, in the liquid dispenser that sets the liquid measuring level to the amount of air sent by compressing it into the container body 1 by the piston 5 integrated with the cap 4, it slides up and down. Since a cylinder 3 that can be moved is provided for sliding the piston 5 and the weighing level can be changed by vertical displacement of this cylinder 3, the range of use can be expanded, which is convenient, and is particularly effective for minute weighing such as 1cc and 0.5cc. is there. Moreover, structurally, it is simple and easy if the cylindrical cylinder 3 is incorporated so that it can slide up and down.

[Brief description of drawings]

1 (a) and 1 (b) show an embodiment of the variable liquid dispenser of the present invention. FIG. 1 (a) is a diagram showing the case of a small amount and FIG. 1 ... Container body, 2 ... Inner plug 3 ... Cylindrical cylinder, 4 ... Cap 5 ... Piston

Claims (1)

[Scope of utility model registration request] 1. A container 1 and a peripheral wall 7 of an inverted cup-shaped main portion 6.
A mounting cylinder 9 forming an upward circumferential groove 8 between the outer peripheral surface of the peripheral wall 7 and the peripheral edge of the lower end is folded back up to above the main portion 6, and is inserted into the mouth / neck portion 10 of the container body 1 through the mounting cylinder 9. An inner plug 2 which is fitted and attached and which hangs through a suction pipe 12 from the upper bottom 11 of the main part 6 into the container body 1, and a cylindrical shape which is vertically slidably fitted into the upward circumferential groove 8 of the inner plug 2. Cylinder 3 and cap 4 screwed onto the outer surface of the mouth and neck 10.
And a piston 5 which is integrally provided with the cap 4 and is fitted in the cylinder 3 in an airtight manner.