JP2001149827A - Foam jet instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a superior foam jet instrument for jetting good foams at all times and to be simply handled. SOLUTION: A liquid container 3 with a thin wall body 10 having holes on its periphery is suspended and fixed in an air container 2 with a compressible body 4, and a foam jet line A running through a top 5 closing the upper end opening and communicating with the interior of a neck section 12 of the liquid container 3 with an end jet opening 17 is provided on the air container 2, and a discharge valve 18 is provided on the lower end in the foam jet A line while a foam generating layer 19 is formed on the upper section therein, respectively, and a check valve 26 introducing air one-sidedly from the interior of the air container into the foam jet line between the discharge valve 18 and the foam generating layer 19 is provided, while and atmosphere introducing valve 28 for introducing atmosphere one-sidedly into the air container 2 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a foam ejector.

[0002]

2. Description of the Related Art As a foam ejector, a container body in which a mouth and neck is raised from a squeezable tubular body is fitted to the inner periphery of the mouth and neck, and a pipe fitting hole is provided in the center and a small hole is provided around the center. An inner plug with a hole, a pipe whose upper end is fitted into a pipe fitting hole at the center of the inner plug and is hung down to the lower end of the container body, and a foaming mesh stretched over the upper part of the mouth and neck. And a cap with a nozzle fitted with a peripheral wall fitted to the outer periphery of the mouth and neck. By squeezing the body, the liquid in the body of the container is moved upward through the pipe, and the air in the upper part of the small container is moved upward through the small hole, respectively,
The gas / liquid mixture is foamed uniformly through a mesh and jetted from a nozzle.

[0003]

In these foam ejectors, when the squeeze of the body of the container is released in order to eject the foam again after the ejection of the foam, the formed non-ejected foam is removed from the upper portion of the pipe or the small foam. When the foam penetrates into the upper part of the container body through the hole, especially when the foam enters the upper part of the container body, the amount of air other than the foam inevitably decreases, and when the body is pressed again, the ratio of liquid to air is remarkable. There was the inconvenience that only unstable foam with a change and unbalance could be produced.

[0004] The present invention has been made in view of such a point, and proposes an excellent foam ejector which can always eject good foam and is easy to handle.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the foam ejector of the present invention comprises an air container 2 having a squeezable body 4 and a space provided in the container body with a gap around the air container. The liquid container 3 which is suspended and fixed and the mouth and neck 12 is erected from the upper end of the thin body 10 and the top and bottom plate 5 which closes the upper opening of the air container and the mouth and neck of the liquid container 12 and the front end outlet 17 are connected, and a discharge valve 18 is provided at the lower end.
And a foam ejection path A provided with a foaming layer 19 on the top
A check valve 26 for unilaterally introducing air from the inside of the air container into the bubble ejection path between the discharge valve and the foaming layer, and the inside of the bubble ejection path is mixed with the gas-liquid mixing chamber A1. In addition, a foam ejector characterized by being provided with an outside air introduction valve 28 for unilaterally introducing outside air into the air container.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the foam ejector 1 of the present invention. The foam ejector 1 comprises an air container 2 and a liquid container 3.
And

The air container 2 has a squeezable tubular body. In the embodiment shown in FIG. 1, a top plate 5 extends from the upper edge of the tubular body 4 and a lower end is provided at the center of the top plate 5. An injection tube 6 having a locking ridge protruding inward from the edge is provided. The top plate 5 is provided with a through hole 7. Further, the body 4 and the top plate 5 are formed as separate members. Further, a rear end of the peripheral wall is rotatably connected to a rear upper end of the top plate 5, and a lid 8 having a top wall extending from an upper edge of the peripheral wall is integrally provided. From the center of the rear surface of the top wall of the lid 8, a stopper tube 9, which is detachably fitted to the pouring tube 6, is provided vertically.

The liquid container body 3 is suspended and fixed inside the air container body with a space around the liquid container body, and the mouth and neck 12 is erected from the upper end of the thin body 10 via the shoulder 11. Make up. In the present embodiment, the upper part of the mouth and neck portion 12 is fitted around the outer periphery of the pouring cylinder 6 and is suspended and fixed in the air container. Also,
From the lower edge of the mouth and neck portion, a bottom wall 13 is formed to extend upwardly in a cylindrical shape except for the peripheral portion, and an annular concave groove 14 is formed between the bottom wall 13 and the mouth and neck portion 12 on the outer periphery of the raised portion 13a. Further, a pouring hole 15 is formed in the center of the protruding portion 13a. Further, a through hole 16 for introducing the air in the air container 2 is formed at a position above the pouring hole 15 below the mouth and neck portion 12.

The foam ejector 1 of the present invention penetrates through a top plate 5 which closes an upper end opening of an air container body to communicate the inside of the mouth and neck portion 12 of the liquid container body with the tip ejection port 17 and at the lower end of the interior. A discharge valve 18 is provided, and a foam ejection path A provided with a foam layer 19 is provided at an upper portion inside. In the present embodiment, the lower part of the mouth and neck 12
The inside of the injection tube 6 constitutes the bubble ejection path A.

The discharge valve 18 is provided for unidirectionally discharging the liquid from inside the liquid container body 10 into the bubble ejection path A. In this embodiment, the discharge valve 18 is used to discharge the liquid from inside the air container 2. The discharge valve 18 is formed by providing a valve member 20 that shares a valve plate for forming a check valve described later for unilaterally introducing air into the ejection path A.

The valve member 20 has a plurality of elastic connecting pieces 22 integrally projecting from the upper portion of the inner peripheral surface of the fixed cylindrical portion 21 fitted and fixed to the lower portion in the annular groove 14 at intervals in the circumferential direction. Each elastic connection piece
22Valve plate with the inner end connected to the outer peripheral surface at intervals
23, the discharge plate 18 is constituted by the valve plate 23 and the through hole 15 for pouring.

The foaming layer 19 is for foaming or adjusting the size of bubbles by passing a gas-liquid mixture introduced into a gas-liquid mixing chamber described later. What is used for this kind of container can be used. In the present embodiment, the fitting cylinder tightly fitted to the inner peripheral lower portion of the pouring cylinder 6
The foaming layer 19 is configured as a mesh stretched on the lower surface of the fitting tube 24, and the fitting tube 24 is similarly fitted above the fitting tube 24, and the mesh is stretched on the upper surface thereof. 25 are provided.

Further, in the present invention, a check valve 26 for unilaterally introducing air from the inside of the air container 2 into the bubble ejection path A between the discharge valve 18 and the foam layer 19 is provided. The inside is configured as a gas / liquid mixing chamber A1. Check valve 26 in the present embodiment
The upright skirt-shaped valve plate 27, which is erected from the upper surface of the fixed cylindrical portion 21 of the valve body 20 and whose upper edge is openably and closably pressed against the inner peripheral surface of the mouth and neck portion 12, is erected. The through hole
The check valve 26 constitutes the check valve 26.

In the present invention, an external air introduction valve 28 for unilaterally introducing external air into the air container 2 is provided in order to correct the volume of the air container 2 which has been reduced by ejecting bubbles. In the present embodiment, a flange-shaped valve plate 31 is extended from an upper end edge of a base cylinder 30 fitted to an outer periphery of a locking cylinder 29 vertically provided from the top plate 5 of the air container 2, and the valve plate and the transparent plate are connected to each other. The hole 7 constitutes an outside air introduction valve 28.

A description will be given of a case where the foam ejector configured as described above is used. The lid 8 is opened from the state shown in FIG.
When the body 4 of the air container body 2 is squeezed, the air in the body container 4 for air opens the check valve 26 through the through hole 16 and is introduced into the gas-liquid mixing chamber A1. Since the body 10 of the liquid container body 3 is also squeezed with the squeezing of the air body 4, the stored liquid is introduced into the gas-liquid mixing chamber A1 by opening the discharge valve 18, where the air and the air are mixed. The liquid is mixed. The gas-liquid mixture then passes through the foam layer 19 to form a regular foam,
After passing through 25, the foam is formed into a more regular foam and is ejected to the outside from the ejection port 17.

Next, when the squeezing of the air container body 4 is released, the air container body 4 returns to the original state by the elastic restoring force. At this time, the negative pressure in the air container body 4 is reduced. As a result, outside air is introduced by opening the outside air introduction valve 28. On the other hand, the liquid container body 10 maintains a contracted state in which the volume is reduced by the amount of the ejected liquid.

FIG. 3 and FIG. 4 show another embodiment of the present invention. In this embodiment, the foam ejector 1 also includes an air container 2 and
And a liquid container 3.

The air container 2 of this embodiment is provided with a cylindrical body 4 which can be similarly compressed, and the mouth and neck 42 is erected from the body via a shoulder 41.

The liquid container 3 has a thin cylindrical body 10 similarly.
The mouth and neck 12 is erected through the shoulder 11 and the partition wall member
46 suspends and fixes the inside of the air container 2 with a space around it.

The partition member 46 has a flange 48 extending from the upper end edge of a fitting cylinder 47 closely fitted to the inner peripheral upper end of the air container body neck portion 42 to the upper surface of the air container body neck portion 42. Mating tube 47
Inwardly from the lower edge, the flange-shaped top plate 49 is extended, and the outer surface of the fitting cylinder 50 extending downward from the inner peripheral edge of the flange-shaped top plate 49 is closely fitted to the inner surface of the liquid container body neck and neck 12. .
In addition, a through hole 51 for ventilation is formed in the outer peripheral edge of the flange-like top plate 49.

Further, in this embodiment, the mounting tube member 52 and the cap main body 53 are provided to form the bubble ejection path A and the gas / liquid mixing chamber A1.

The mounting cylinder member 52 has a top plate 5 having a stepped central portion protruding inward from an upper end edge of the mounting cylinder 54 fitted to the outer periphery of the air container body neck and neck portion 42. This top plate 5 is configured by connecting a low step portion 5a and a high step portion 5b with a vertical wall portion 5c,
Further, the connecting tubular portion 55 which passes through the center of the top plate 5 and is opened at the upper and lower end surfaces.
Is provided. A plurality of connecting pieces 56 in the circumferential direction are protruded below the lower end of the connecting cylinder 55, and the partition member 46 is provided through each connecting piece.
A lower connecting cylinder portion 57 closely fitted to the inner periphery of the fitting cylinder portion 50 is provided. Also, a bottom wall 58 extending from the lower edge of the lower connecting cylinder 57
The central portion is raised cylindrically to the lower end of each connecting piece 56 to form a raised portion 58a, and an annular groove 59 is formed on the outer periphery thereof. Further, a through hole 60 for liquid passage is formed in the raised portion 58a.

Further, a support cylinder 61 is erected upward from the outer peripheral edge of the upper surface of the high step portion 5b of the top plate 5, and from the inner peripheral edge of the lower surface of the low step portion 5a to the inner periphery of the fitting cylinder portion 47 of the partition member 46. A closely fitted seal cylinder 62 is provided vertically. Further, a through hole 63 for ventilation is formed in the high step portion 5b.

The cap body 53 has a spouting tube portion 64 whose lower periphery is closely fitted to the inner periphery of the connecting cylinder portion 55, and is vertically suspended from the outer periphery of a top wall 65 extending from the upper periphery of the spouting cylinder portion. The lower part of the peripheral wall 66 is fitted to the outer periphery of the mounting cylinder 54. A plurality of ribs 67 in the circumferential direction protrude from the inner peripheral surface of the peripheral wall 66, and the inner edge of each rib 67 is brought into contact with the outer periphery of the mounting cylinder 54. Also, from the back of the top wall 65, the support cylinder 61
A fitting tube 68 fitted on the outer periphery is vertically provided, and a cut groove 69 for ventilation is formed in the fitting tube 68. And the connecting cylinder 5
5. A foam ejection path A is formed by the lower connecting cylinder 57 and the pouring cylinder 64.

In this embodiment, the valve member of the above embodiment is used.
A valve member 20 having the same configuration as that of the discharge valve 18 and the check valve 26 is provided.
Is formed. Therefore, the same reference numerals are given and the description is omitted. Further, the foaming layer 19 is provided at the lower part inside the pouring cylinder 64 in the same manner as in the above-described embodiment, and therefore the same reference numerals are given and the description is omitted.

The outside air introduction valve 28 in this embodiment is
The through hole 63 is configured to be openably and closably closed by a valve plate 71 extending outward from an upper end edge of the fitting cylinder 70 fitted to the outer periphery of the connecting cylinder portion 55. The ventilation path to the outside air introduction valve 28 passes through the cut groove 69 of the fitting cylinder 68 fitted to the outer periphery of the support cylinder 61 from between the mounting cylinder 54 and the cap body 53 peripheral wall 66, and It reaches the outside air introduction valve 28 through the cut groove 72 of the section. The foam ejection operation of this embodiment is the same as that of the embodiment of FIG.

FIG. 5 shows still another embodiment. In this embodiment, a different form of the outside air introduction valve from the embodiment of FIG.
28 are provided. The outside air introduction valve 28 in the present embodiment is configured by vertically movably providing a ball valve 73 that opens and closes the lower surface of the ventilation hole 63 formed in the high step portion 5b of the top plate 5 so as to be able to open and close. .

[0029]

As described above, the foam ejector of the present invention has the following features.
By adopting the above-described configuration, in the continuous blowing operation of bubbles, the generated bubbles flow back into the air container and hinder the inflow of air into the gas-liquid mixing chamber, resulting in a significant gas-liquid imbalance. As a result, good foam can always be ejected.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part showing one embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a main part showing a state of foam ejection according to the embodiment.

FIG. 3 is a longitudinal sectional view of a main part showing another embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a main part showing a bubble ejection state of the embodiment.

FIG. 5 is a vertical sectional view of a main part showing still another embodiment of the present invention.

[Explanation of symbols]

2 ... air container, 3 ... liquid container, 4 ... air container body, 5 ... top plate, 10 ... liquid container body, 12 ... liquid container body neck, 17 ... spout, 18: discharge valve, 19: foam layer, 26: check valve, 28: outside air introduction valve, A: foam ejection path, A1: gas / liquid mixing chamber

Claims (1)

[Claims] 1. An air container 2 having a squeezable body 4.
A liquid container body 3, which is suspended and fixed inside the container body with a space around the liquid container body, and has a mouth and neck portion 12 erected from the upper end of the thin body 10, and an upper end opening of the air container body. A bubble formed by penetrating the closed top plate 5 to communicate the inside of the mouth and neck portion 12 of the liquid container body with the tip ejection port 17, providing a discharge valve 18 at a lower end, and a foaming layer 19 at an upper portion. A discharge valve A, and a check valve 26 for unilaterally introducing air from the inside of the air container into the bubble ejection path between the discharge valve and the foaming layer. A foam ejector comprising a mixing chamber A1 and an external air introduction valve 28 for unilaterally introducing external air into the air container.