JP2585622Y2 - Foam spouting container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam ejection container.

[0002]

[Prior art]

[Problem to be solved by the invention]
2. Description of the Related Art A type in which a high-pressure gas such as Freon gas is stored in a container together with a foaming liquid and bubbles are generated at the time of ejection is widely used. However, due to the problem of air pollution caused by Freon gas in recent years, a foam ejection container that does not use high-pressure gas has been proposed.

[0003] As such, Japanese Patent Application No. Hei 2-5150 is disclosed.
No. 82 is proposed. This container has a double cylinder in which an air cylinder for an air pump and a liquid cylinder for a liquid pump provided concentrically are provided inside an opening of a container containing a liquid, and a liquid cylinder. A liquid suction pipe communicating the bottom of the container with the bottom of the container, a piston body provided integrally with a pneumatic piston and a liquid piston that move up and down in the air cylinder and the liquid cylinder, respectively, A nozzle body provided at the upper end of the piston body and having a hole for blowing bubbles, an air flow path for communicating the hole with the inside of the air cylinder, and a liquid flow for communicating the inside of the liquid cylinder with the hole. A first check valve disposed in the middle of the liquid flow path, and a second check valve disposed in the liquid cylinder.
A check valve, a porous body disposed in the hole, a biasing spring for biasing the piston body toward the top dead center with respect to the double cylinder, and a container that communicates the liquid in the container with the outside air outside the container. An outside air introduction hole formed in the air cylinder and having an operating valve to prevent the inside from becoming negative pressure, and a lid for fixing the double cylinder to the container and guiding the piston through the piston Wherein the porous body is formed of a porous sheet-like body, and a merging point where the flow passage and the air passage merge with each other is provided on the front side of the location where the porous sheet-like body is disposed. There is a mixing chamber for mixing liquid and air, and the cylinder for air is moved up and down so that there is a height difference between the sliding part of the piston for air and the sliding part of the piston for liquid. It extends below the bottom surface and uses an air cylinder and air piston. The outside air introduction into the air chamber are made to perform through the gap through the outer peripheral surface and the lid of the air piston has a third check valve configured by providing the air piston.

In the above-mentioned conventional container, a junction where the flow passage and the air passage merge is provided in the nozzle body at the upper end of the pump. Therefore, the liquid flows into the air cylinder from the junction through the air passage. May flow back and liquid may accumulate in the air cylinder.

[0005] Further, since two pumps are required, the size of the pump becomes large, and accordingly, the mouth and neck of the container must be made large, and there are many structural restrictions, and the appearance is not good.

[0006] The present invention proposes an excellent foam ejection container which has solved the above-mentioned disadvantages of the prior art.

[0007]

In order to solve the above-mentioned problems, the container according to the present invention has a mounting cap 6 fitted to the mouth and neck 5 of a container body, and a cap hanging down from the top wall of the cap 6 into the container body 2. A cylinder 7 having a bottom cylindrical shape and a recess 13 formed by recessing the center of the bottom wall downward; a suction pipe 15 having an upper end opened in the center of the recess 13 and a lower end hanging down to the bottom of the container body; Valve plate 16 that closes the opening of the recess so that it can be opened and closed
b, and an inwardly tapering intake valve formed on the inner periphery of a window hole drilled in the center of the cap top wall 10.
12 and an upper end protruding above the cap top wall 10 by fitting the outer periphery airtightly and slidably to the inner peripheral edge of the intake valve 12, and a lower end peripheral wall suspended vertically in the cylinder 7. A bottomed cylindrical discharge pipe 17 having a through hole 19 communicating with the inside of the pipe 7, and a press-down head 18 with a nozzle fixed to the upper end of the discharge pipe 17 and moving up and down integrally with the discharge pipe 17.
An elastic member 25 which constantly urges the vertically moving member 8 comprising the discharge pipe and the pressing head 18 upward;
The outer peripheral edge is fitted to the inner peripheral surface of the cylinder 7 so as to be liquid-tight, air-tight and vertically movable, and the inner peripheral edge is vertically moved to the outer peripheral portion of the discharge pipe 17 by a predetermined width. And an annular piston 26 that is fitted and mounted in a liquid-tight and air-tight manner, opens the through hole 19 when the vertically moving member 8 is lowered, and closes when the vertically moving member 8 is raised. A through-hole 29 communicating with the inside of the container body 2 is formed in the wall, and a through-hole 27 with a check valve 28 that unilaterally communicates into the container body 2 is provided above the cylinder peripheral wall 7b.

[0008]

The vertical moving member 8 and the mounting cap 6 are changed from the state shown in FIG.
When the screw is removed, the vertical movement member 8 is actuated by the action of the spring 25.
Rises to a dischargeable state. When the vertically moving member 8 is pressed down from this state, the bubbles in the cylinder 7 below the annular piston 26 pass through the discharge pipe 17 through the through hole 19, and the nozzle 22
Squirted more. At this time, outside air is introduced into the cylinder 7 above the piston 26 via the intake valve 12.

Next, when the vertically moving member 8 is lifted, the annular piston 26 is moved by the air pressure in the cylinder 7 above the discharge pipe.
The discharge valve body portion 26e is lowered relative to the cylinder 17 and the discharge valve body portion 26e contacts the upper surface of the locking projection 21 to block the inside of the cylinder 7 from the discharge pipe 17. When the pressure is increased, the suction valve 16 is opened and the liquid in the container 2 is sucked into the recess 13 of the cylinder 7 via the suction pipe 15. On the other hand, the inside of the cylinder 7 above the piston 26 is pressurized, the check valve 28 is opened, air is introduced into the container body, and the pressurized pressurized air is introduced into the recess 13 through the through hole 29, The liquid is mixed with the liquid in 13, foamed by the foam layer 30, and foam is introduced into the cylinder 7 through the suction valve 16.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which 1 shows a foam ejection container. The container 1 includes a container 2 and a pump 3.

The container 2 is made of synthetic resin, glass, or the like, and has a mouth and neck 5 standing upright from a cylindrical body 4.

The pump 3 is made of a synthetic resin, and includes a mounting cap 6, a cylinder 7, and a vertically moving member 8 as main members.

The mounting cap 6 has a top wall 10 extending from an upper edge of a peripheral wall 9 screwed to the outer periphery of the container body neck portion 5 and a circular window hole formed in the center of the top wall 10 at an upper portion of an inner peripheral portion thereof. A screw 11 for attaching a head screw is provided around, and a tapered intake valve 12 is integrally provided below the screw 11.

The cylinder 7 has a bottomed cylindrical shape with the upper end fitted and fixed to the mounting cap top wall 10 and suspended vertically in the container body neck portion 5. Is provided in the shape of a circular recess. Also, recess 13
The fitting tube portion 14 is suspended from the periphery of the circular window hole drilled in the center,
A suction tube 15 having an upper end fitted and fixed to the outer periphery of the cylindrical portion 14 and a lower end hanging down from the bottom of the container body is provided.

A suction valve 16 is provided at the lower end of the cylinder 7. The suction valve 16 has a disc-shaped valve plate 16b extending through a rod-shaped connecting portion protruding from a part of the inner surface of a cylindrical base 16a fitted and fixed to the inner peripheral lower end of the cylinder 7,
The valve plate 16b is configured so as to close and open the upper end opening of the concave portion 13 in an openable and closable manner.

The vertically moving member 8 further includes a discharge pipe 17 and a pressing head 18.

The discharge pipe 17 has its outer periphery slidably fitted to the inner periphery of the intake valve 12 so that its upper end projects vertically above the cap top wall 10 and its lower end is connected to the cylinder 7.
It has a cylindrical shape with a bottom which is suspended vertically so that it can move up and down.
Further, a through hole 19 communicating with the inside of the cylinder 7 is formed at the lower end of the peripheral wall 17a, and the locking cylindrical portion 20 having a lower end opened from the outer peripheral surface of the peripheral wall 17a above the through hole 19 is formed into a double cylindrical shape. Hanging down,
An outward flange-shaped locking projection 21 protrudes below the through hole 19 at a predetermined distance from the lower edge.

The press-down head 18 has a fitting tube portion 18a fitted and fixed to the upper end of the discharge pipe 17, and has a flow from the upper end opening of the discharge pipe 17 to the discharge hole of the nozzle 22 opened to the front. A passage 23 is formed inside.

A thread 24 for screwing with the thread 11 of the mounting cap 6 is provided on the outer periphery of the fitting cylindrical portion 18a of the vertically moving member 8, so that the vertically movable member 8 can be locked in a lowered state. The lower surface of the discharge pipe 17 is pressed against the upper surface of the suction valve plate 16b when the vertically moving member 8 is screwed and locked.
Therefore, there is no danger of leakage of the liquid even if the container body is accidentally turned down at the time of the screwing engagement.

The vertically moving member 8 is provided with a head top wall 18b.
, And is constantly urged upward by a coil spring as an elastic member 25 mounted between the cap top wall 10.

An annular piston is provided in the cylinder 7.
26 is installed. The piston 26 has a donut plate-shaped annular base 26a which moves vertically between the locking cylinder 20 and the locking projection 21 of the discharge pipe 17, and has a skirt shape extending upward from the upper surface of the outer edge of the base 26a. The outer upper sliding portion 26b, the skirt-shaped outer lower sliding portion extending downward from the lower surface of the outer edge of the annular base 26a, and the inner upper sliding whose upper end extends outward from the upper surface of the inner edge of the annular base 26a. A vertical section formed by extending a ring plate-shaped discharge valve body portion 26e extending downward from the lower surface of the inner edge of the annular base portion 26a has a substantially H-shape. The lower end of the sliding portion 26c is slidably abutted against the inner peripheral surface of the cylinder 7, and the upper end of the upper inner sliding portion 26d is slidably and liquid-tightly and air-tightly contacted inside the locking cylinder 20. Wearing.
When the vertically moving member 8 is pushed down, the annular piston 26
The upper surface of the annular base 26a abuts on the lower end edge of the locking cylinder 20 by the lower hydraulic pressure, and the inside of the cylinder 7 and the inside of the discharge pipe 17 communicate with each other. The valve body 26e is configured to abut on the upper surface of the locking projection 21 to block communication between the inside of the cylinder 7 and the inside of the discharge pipe 17.

At the upper end of the peripheral wall 7a of the cylinder 7, a through hole 27 communicating with the inside of the container body 2 is formed, and a check valve 28 for unilaterally communicating with the outer periphery of the through hole 27 into the container body is provided. Provided. Further, a through hole 29 communicating with the inside of the container body 2 is also provided in the bottom wall portion 13a of the concave portion 13 of the cylinder 7. When the vertically moving member 8 rises, the air in the cylinder 7 opens the check valve 28 through the through hole 27 and is pressed into the container body 2.
And pressurized into the recess 13 through which the gas and liquid can be combined.

In the recess 13, a foam layer 30 is provided horizontally. The foam layer 30 is formed of a mesh-like porous sheet, and is laterally provided in the recess 13 with a slight gap from the bottom wall 13a of the recess. It is configured such that when the gas-liquid mixture passes through the foam layer 30, it foams and foams are formed. Further, a foam-regulating layer 31 made of a porous sheet is also provided in the upper part of the discharge pipe 17 of the vertically moving member 8.
Is laid horizontally. The foam regulating layer 31 functions to make the foam once foamed in the lower foam layer 30 substantially uniform. The foam layer 30 and the foam regulating layer 31 are not limited to the above-described porous sheet, but may be any material having a foaming function and a foam regulating function used in conventional containers of this kind, such as a porous member. .

[0025]

As described above, the container according to the present invention has the above-described structure, and the liquid and air merge under the suction valve at the lower end of the cylinder. There is no danger that the liquid will flow into and accumulate in the pneumatic cylinder and cause an operational failure of the up-down moving member or the annular piston.

Further, since one cylinder is used for both liquid and air, the structure is simple and easy to manufacture as compared with a conventional container of this kind, and the size of the pump can be reduced. Accordingly, the mouth and neck of the container body can be configured to be small, and there are fewer structural restrictions as compared with the conventional container that can be configured only to be relatively large.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the container of the present invention.

[Explanation of symbols]

2 ... container body, 6 ... mounting cap, 7 ... cylinder, 8 ...
Vertical moving member, 12: intake valve, 13: concave portion, 15: suction pipe, 16: suction valve, 17: discharge pipe, 18: depressing head, 25: elastic member, 26: annular piston, 28
... check valve, 30 ... foam layer

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting cap 6 fitted to a neck 5 of a container body, a bottomed cylindrical shape hanging down from the top wall of the cap 6 into the container body 2, and a central portion of the bottom wall is depressed downward. A cylinder 7 having a recess 13 formed therein, a suction pipe 15 having an upper end opened at the center of the recess 13 and a lower end hanging down to the bottom of the container body, and a valve plate 16 for opening and closing the recess opening
b, and an inwardly tapering intake valve formed on the inner periphery of a window hole drilled in the center of the cap top wall 10.
12 and an upper end protruding above the cap top wall 10 by fitting the outer periphery airtightly and slidably to the inner peripheral edge of the intake valve 12, and a lower end peripheral wall suspended vertically in the cylinder 7. A bottomed cylindrical discharge pipe 17 having a through hole 19 communicating with the inside of the pipe 7, and a press-down head 18 with a nozzle fixed to the upper end of the discharge pipe 17 and moving up and down integrally with the discharge pipe 17.
An elastic member 25 which constantly urges the vertically moving member 8 comprising the discharge pipe and the pressing head 18 upward;
The outer peripheral edge is fitted to the inner peripheral surface of the cylinder 7 so as to be liquid-tight, air-tight and vertically movable, and the inner peripheral edge is vertically moved to the outer peripheral portion of the discharge pipe 17 by a predetermined width. And an annular piston 26 that is fitted and mounted in a liquid-tight and air-tight manner, opens the through hole 19 when the vertically moving member 8 is lowered, and closes when the vertically moving member 8 is raised. A through hole 29 communicating with the inside of the container body 2 is formed in the wall, and a through hole 27 with a check valve 28 unidirectionally communicating into the container body 2 is provided above the cylinder peripheral wall 7b. Foam spouting container.