JPS6026856Y2 - spray device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved spraying device, which can spray the contents of the inner bag by squeezing the body of the outer container, and does not inhale outside air into the inner bag. The contents can be effectively protected from the outside air or contaminants contained in the outside air.

With conventional pump-type sprayers, a push button must be pressed several times to spray a large amount of the contents, and the user is burdened with the hassle of spraying over a relatively long period of time. It was clunky and lacked practicality.

In addition, the mechanism of the spraying device itself was complicated and expensive, and had disadvantages in terms of economy. However, as a result of intensive research, the inventor of the present invention has developed the present invention which does not have these disadvantages.

A specific example of the present invention will be described below with reference to the drawings. A body 1 made of polyethylene or other flexible synthetic resin is inserted into the mouth 3 of an outer container 2 which is thin and flexible. The opening 5 of the flexible inner bag 4 is tightly sealed with a resin or rubber film, and an intake valve 9 having a valve 7 and a spring 8 inside is attached to the preferably concave bottom 6 of the outer container 2.

This intake valve 9 sucks in outside air when the pressure inside the outer container 2 is reduced;
The air inside the outer container 2 is not discharged during pressurization.

A valve chamber 1 is provided inside the overcap 10 attached to the mouth portion 3.
A spouting rod 1 having a spout passage 12 in the inner core part, which is suspended in series.
3 slidably penetrates the overcap 10, and the valve plate 15 has an O-ring 14 attached to the lower end of the spout rod 13.
A spring 16 is inserted between the valve plate 15 and the overcap 10 to provide the valve plate 15 with a reduction blade.

A guide rod 18 is provided protruding inside a bottom plate 17 which is inserted into the lower end of the valve chamber 11 and attached by an appropriate means such as adhesive bonding.
A recessed hole 19 is bored in the lower surface of the valve plate 15, a jetting passage 12 is opened in the upper surface 20 of the recessed hole 19, and the upper part of the guide rod 18 is inserted into the recessed hole 1.
9 is inserted into the valve chamber 11 while maintaining a gap 21 around it, and an O-ring 22 is attached to the top surface of the guide rod 18 to abut around the opening of the ejection passage 12 on the upper surface 20 of the concave hole 19. A liquid suction pipe 23 that reaches the bottom of the inner bag 4 is opened in the lower part or the bottom plate 17,
At the upper end of the spout rod 13 is a spout hole 24 that communicates with the spout passage 12.
A spout side 25 having a diameter is attached to the spout side 25.

If necessary, one or more vertical grooves 26 may be formed on the inner surface of the recessed hole 19 or on the outer periphery of the guide rod 18.

Incidentally, the ejection rod 13 and the valve plate 15 may be formed separately or integrally.

The present invention is applied when the inner bag 4 is filled with liquid contents, and when the body 1 of the outer container 2 is squeezed, the inner bag 4 is pressurized, and the internal pressure generated by this pressurizes the contents. The liquid flows into the lower part of the valve plate 15 of the valve chamber 11 from the liquid suction pipe 23 and flows into the gap 21 between the guide rod 18 and the recessed hole 19.
The valve plate 15 and the jet pipe 13 are pushed up against the elasticity of the spring 16 to create a gap between the O-ring 22 on the top surface of the guide rod 18 and the top surface 20 of the concave hole 19. The contents that flowed into the lower part of the valve plate 15 by opening the spout passage 12 and flowing into the gap 20. The ejection hole 24 passes through the concave hole 19 and the ejection passage 12.
More gushing.

When the body 1 is released when the desired amount of contents has ejected,
At the same time as the ejection stops, the elasticity of the spring 16 causes the valve plate 15. The ejection rod 13 is connected to the upper surface 20 of the concave hole 19 and the guide rod 18.
Press down until the O-ring 22 on the top surface of the
2 is closed to prevent outside air from flowing into the inner bag 4 from the blowout path 12, and the negative pressure inside the outer container 2 generated by the restoring force of the body 1 causes the outside air to pass through the intake valve 9 and enter the outer container 2. Inner bag 4
Between this, the inhalation outer waist container 2 returns to its original shape, and the inner waist bag 4 maintains its contracted state by the amount of the ejected contents.

The present invention allows the contents to be squirted out by squeezing the body 1 of the outer container 2, and by releasing the body 1, the outer container 2 absorbs outside air and returns to its original shape. It is something that maintains harmony with its kind and does not harm the sense of beauty.

In addition, in the present invention, the restoring force of the body 1 of the outer container 2 causes the outside air sucked into the outer container 2 through the intake valve 9 to flow between the outer container 2 and the inner bag 4, and into the inner bag 4. The ejection passage 12 effectively protects the contents of the air from the outside air or harmful substances contained in the outside air, and communicates with the outside air on the upper surface 20 of the recessed hole 19.
O-ring 2 attached to the periphery of the opening and the top of the guide rod 18
2 are brought into contact with each other by the elasticity of the spring 16, and the ejection passage 12
This prevents the inflow of outside air into the inner bag 4 and the spontaneous ejection of the contents, and also prevents the contents from flowing out from the gap between the inner wall surface of the valve chamber 11 and the outer peripheral surface of the valve plate 15 when the contents are ejected. The leakage of the contents to the upper part of the valve plate 15 is prevented by the 01J ring 14, and the ejection of the waist contents from the gap between the overcap 10 and the ejection rod 13 can be prevented.

Furthermore, the present invention allows relatively large tolerances for the inner diameter of the valve chamber 11, the outer diameter of the valve plate 15, the outer diameter of the guide rod 18, and the inner diameter of the recessed hole 19, making it easy to manufacture and assemble. It is something.

Note that the O-ring 14 is attached to the inner wall surface of the valve chamber 11, and the O-ring 22 is attached to the inner wall surface of the valve chamber 11.
may be attached to the periphery of the opening of the upper surface 20 of the recessed hole 19 that opens the ejection passage 12.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, Fig. 3 is a partial longitudinal cross-sectional view of another specific example, and Fig. 4 is a cross-sectional view taken along line B-B in Fig. 3. FIG. 1...Body part, 2...Outer container, 3...
... Mouth, 4 ... Inner bag, 5 ... Opening, 9 ... Intake valve, 10 ... Overcap, 11 ... ... Valve chamber, 12 ... Ejection path, 13 ... Ejection rod, 14 ... O ring, 15 ... Valve plate, 16 ... ... Spring, 17 ... Bottom plate, 18 ... Guide rod, 19 ... Recessed hole, 20 ... Top surface, 21
...Gap, 22...O-ring, 23.
...Liquid suction tube.

Claims (1)

[Scope of utility model registration request] The opening 5 of the flexible inner bag 4 inserted into the outer container 2 is brought into close contact with the opening 3 of the outer container 2 whose body part 1 is flexible, and the intake valve 9 is attached to the outer container 2. A valve chamber 11 is provided protruding inside the overcap 10 attached to the part 3, and a jet passage 1 is provided in the inner core part.
The ejection rod 13 having a diameter of 2 is slidably passed through the overcap 10, and an O-ring 14 is attached to the lower end of the ejection rod 13 and around the circumference.
A spring 16 is inserted between the valve plate 15 and the overcap 10, and a guide rod 18 is provided protruding inside the bottom plate 17 fixed to the lower end of the valve chamber 11.
A recessed hole 19 is bored in the lower surface of the valve plate 15, a jetting passage 12 is opened in the upper surface 20 of the recessed hole 19, and the upper part of the guide rod 18 is inserted into the recessed hole 1.
9 is inserted into the valve chamber 11 while maintaining a gap 21 around it, and an O-ring 22 is attached to the top surface of the guide rod 18 to abut around the opening of the ejection passage 12 on the upper surface 20 of the concave hole 19. A spray device having a liquid suction pipe 23 opened at the bottom.