JPS62751Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an aerosol valve installed in an aerosol sprayer, and its purpose is to enable the injection amount to be freely adjusted with simple operation.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

1 is a lid of an aerosol container, with a peripheral wall 11 in the center.
A bulging portion 13 consisting of a top wall 12 and a top wall 12 is provided.
A through hole 14 is provided in the center of the hole.

2 is a valve housing, which has a female thread 22 on the inner surface of a peripheral wall 21 that opens upward, an injection liquid introduction hole 24 in the center of a bottom wall 23, and a cylindrical suction pipe connection part 25 protruding from the bottom surface; The suction pipe 3 is connected to the connecting portion 25. 26 is a gas introduction hole.

Reference numeral 4 designates a second valve body, which has an adjustment shaft 43 protruding from the center of the upper surface of a piston 42 provided with a male thread 41 on its outer peripheral surface, and a tapered shaft 44 protruding from the center of the lower surface. 4 is housed in the valve housing 2, the male screw 41 is screwed into the female screw 22, the tapered shaft 44 is faced into the introduction hole 24, and the rotation of the second valve body 4 causes the valve body 4 to move in the axial direction. The radial clearance amount S between the tapered shaft 44 and the introduction hole 24 is
is adjustable. The piston 42 is provided with a passage 45 that communicates with both the upper and lower chambers 27 and 28 in the valve housing 2, which are partitioned by the piston 42. The passage 45 may be provided in the shape of a notch in the circumferential surface of the piston 42 as shown in FIGS. 1 and 3a, or as a through hole in the periphery of the piston 42 as shown in FIG. 3b. You can. The adjustment shaft 43 is provided with a protrusion 46 on its circumferential surface as an engaged portion.

Reference numeral 5 designates a first valve body, which has a lateral hole 5 in the neck of a jet pipe 52 having a jet pipe 51 therein, which communicates with the jet pipe 51.
3, a cylindrical part 54 opening downward is provided at the lower part, and the protrusion 4 is provided on the inner surface of the cylindrical part 54.
The cylindrical portion 54 of the first valve body 5 is loosely inserted into the valve housing 2, and the cylindrical portion 54 and the peripheral wall 21 of the valve housing 2 are connected to each other. an annular passage 29 communicating with the upper chamber 27 is formed between the two;
Moreover, by engaging the engagement groove 55 with the protrusion 46 so as to be able to freely slide in the axial direction, the rotational force of the first valve body 5 can be transmitted to the second valve body 4. Note that a compression spring 6 is disposed between the lower end of the cylindrical portion 54 and the upper surface of the piston 42.

Reference numeral 7 denotes an annular packing, which is fitted into the neck of the first valve body 5 and is disposed between the inner surface of the top wall 12 of the bulging portion 13 and the upper end surface of the peripheral wall 21 of the valve housing 2, and in this state, The upper end of the peripheral wall 21 of the valve housing 2 is connected to the bulged portion 13.
By fixing to the inner side of the peripheral wall 11 of the first valve body 5, the ejection pipe 52 of the first valve body 5 is allowed to protrude upwardly from the through hole 14 of the bulging portion 13 in a vertically movable and rotatable manner. The annular packing 7 is deformed by the vertical movement so that the horizontal hole 53 in the neck can be opened and closed.

Reference numeral 8 denotes a push button, which has a passage 81 that communicates with the ejection passage 51, is detachably attached to the upper end of the ejection pipe 52, and is connected to the first valve body 5 via a key or the like (not shown). It is installed so that it rotates as a unit. A nozzle 83 having an injection port 82 communicating with the passage 81 is detachably attached to the side surface of the push button 8 .

Next, the effect will be explained.

First, as shown in FIG. 1, when the push button 8 is pressed down with an appropriate distance provided between the tapered shaft 44 of the second valve body 4 and the bottom introduction hole 24 of the valve housing 2,
As shown in FIG. 5, the first valve body 5 is pushed down against the spring 6, and the inner periphery of the annular packing 7 is pushed down so as to be recessed into the valve housing 2. The horizontal hole 53, which had been closed, is opened and communicated with the annular passage 29 in the valve housing 2.
As a result, the injection liquid, which had been pressed by the pressurized gas stored in the aerosol container (not shown), passes from the suction pipe 3 through the introduction hole 24 and between the hole 24 and the tapered shaft 44. and flows into the valve housing 2, and then from the lower chamber 28 to the passage 45, the upper chamber 27,
Annular passage 29, horizontal hole 53, jet passage 51, passage 8
1. It is injected outside the vessel through the injection port 82.

In the illustrated example, during the above-mentioned injection, pressurized gas in the aerosol container is introduced into the valve housing 2 from the gas introduction hole 29 in excess, so that the injection liquid can be efficiently injected by this gas.

Next, when the push button 8 is rotated to rotate the first valve body 5, the second valve body 5 is rotated by the engagement groove 55 and the protrusion 46, and the second valve body is rotated by the male thread 41 and the female thread 22. 5 moves in the axial direction, and the amount of intrusion of the tapered shaft 44 into the introduction hole 24, that is, the size of the distance S between the shaft 44 and the introduction hole 24, is adjusted by a needle valve type, and the valve housing 2 of the injection liquid is adjusted. This means that the amount of inflow into the interior, that is, the amount of injection from the injection port 82 can be freely adjusted. Note that the introduction hole 4 is closed by the tapered shaft 44.
By closing 4, it is possible to prevent the liquid from being sprayed even if the push button 8 is pressed down unexpectedly when not in use. At this time, if the introduction hole 26 is omitted, unexpected outflow of gas can be prevented.

In the above embodiment, an indicator protrusion or an indicator line, a scale, etc. are provided between the lower end of the push button 8 or the outer peripheral surface of the ejection pipe 52 and the bulge 11 or the lid 1,
If they are combined to display the rotation angle of the push button 8 or the injection pipe 52 and the injection amount, it will be more convenient to use.

As explained above, according to the present invention, the injection amount can be freely adjusted in a needle valve type by a simple operation of turning a push button, and the injection liquid can be used effectively according to the purpose without wasting it.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a vertical cross-sectional view of the main part showing the stationary state, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. Figure 3b is a sectional view corresponding to Figure 3a showing the other side of the passage, Figure 4 is a sectional view taken along the - line in Figure 1, and Figure 5 is a longitudinal sectional view of the main part showing the injection state. be. 1...Aerosol container lid body, 2...Valve housing, 3...
...Suction pipe, 4...Second valve body, 5...First valve body, 6
. . . Compression spring, 7 . Introduction hole, 25...Suction pipe connection part, 26...Gas introduction hole, 27...Upper chamber, 28...Lower chamber, 29...
...Annular passage, 41...Male thread, 42...Piston, 43...Adjustment shaft, 44...Tapered shaft, 45
... Passageway, 46 ... Projection, 51 ... Spout path, 52
... Ejection pipe, 53 ... Horizontal hole, 54 ... Cylindrical part, 5
5... Engagement groove, 81... Passage, 82... Injection port,
83...Injection nozzle.

Claims (1)

[Scope of utility model registration request] A valve housing having a bulge having a through hole in the center of the lid of the aerosol container, an injection liquid introduction hole in the center of the bottom wall, and a cylindrical suction pipe connection protruding from the bottom surface of the bottom wall. A second valve body is provided with a female thread on the inner surface of the circumferential wall opening upward, and a male thread on the outer circumferential surface of the piston, with an adjustment shaft protruding from the center of the upper surface and a tapered shaft protruding from the center of the lower surface. The second valve body is housed in the valve housing, the male thread is screwed into the female thread, and the tapered shaft is exposed to the introduction hole, and as the second valve body rotates, the second valve body moves in the axial direction and is introduced into the tapered shaft. The amount of clearance between the piston and the hole can be adjusted, and the piston is provided with a passage that communicates the upper and lower chambers in the valve casing partitioned by the piston, and the jet is connected to the neck of the jet pipe which has a jet passage inside. A cylindrical part opening downward is provided at the lower part of the first valve body having a horizontal hole communicating with the passage, the cylindrical part is loosely inserted into the valve housing, and an engaging part is provided on the inner surface of the cylindrical part. is slidably engaged with an engaged portion provided on the adjustment shaft in the axial direction to transmit the rotational force of the first valve body to the second valve body, and the cylindrical portion and the piston A compression spring is placed between the
With an annular packing arranged between the inner side of the top wall of the bulge and the upper end of the peripheral wall of the valve housing, the upper end of the surrounding wall is fixed to the inner side of the peripheral wall of the bulge, and the annular packing is attached to the neck of the first valve body. The upper end of the first valve body is fitted with the horizontal hole in the neck so that it can be freely opened and closed, and the upper end jet pipe of the first valve body is made to protrude upwardly from the through hole of the bulging part so as to be movable up and down and freely rotatable, and the upper end of the An aerosol valve characterized by a removably attached push button with a spout that communicates with a spout passage.