JP2537903Y2 - Foam, liquid switchable liquid ejector - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a foam and liquid switching type liquid ejector.

2. Description of the Related Art It is known that a foaming tube is attached to the tip of a nozzle of a trigger type sprayer to form a foam discharger (Japanese Utility Model Laid-Open No. 63-69579).

"Problems to be solved by the invention" As described above, in the case of the trigger type sprayer, a foam ejector is used, but it is attached to the container body, for example, as invented in Japanese Utility Model No. 63-69579. The operator with the discharge valve is erected from the inside of the cylinder with the suction valve by urging, the liquid in the container is sucked into the cylinder by the vertical movement of the operator with respect to the cylinder, and the liquid in the cylinder is moved to the nozzle at the upper end of the operator. In the liquid discharger provided so as to discharge from the liquid, there is no liquid discharger which can be switched between bubbles and liquid.

This is probably because the nozzle of the trigger type sprayer has a relatively large diameter while the nozzle of the latter liquid ejector has a small diameter.

In the present invention, the latter is a liquid ejector, i.e., a liquid provided so that the liquid in the container is sucked into the cylinder and the liquid in the cylinder is ejected from the nozzle at the upper end of the actuator by the up and down movement of the actuator rising from the cylinder. The ejector is a liquid ejector capable of switching between foam and liquid.

[Means for Solving the Problems] An operator with a discharge valve is erected from the inside of a cylinder with a suction valve to be attached to a container body by urging, and the above-mentioned liquid in the container is moved into the cylinder by vertical movement of the operator with respect to the cylinder. In a liquid discharger provided to suck and discharge the liquid in the cylinder from a nozzle at an upper end of an actuator, an air suction small hole 20 is formed in an upper part of a suction passage pipe which is suspended from a lower end of the cylinder 1 and the small size of the small air suction hole is formed. A pipe member with a window is fitted to the outer surface of the suction passage pipe portion having the hole formed therein by opening and closing the small hole 20 by rotation of the member, and the inner surface of the passage pipe portion immediately below the small hole 20. Is provided with a second suction valve 24,
Further, a net 15 for mixing air and liquid was provided in the middle of the discharge path between the discharge valve and the tip of the nozzle hole.

[Operation] As shown in FIG. 1 and FIG. 2, if the actuator 12 is moved up and down in the state where the air intake small hole 20 is opened, the air in the container becomes the small hole.
The liquid in the container passes through the suction passage and enters the cylinder 1 through the suction passage 20. Further, the air and the liquid are mixed and foamed from the nozzle 10 by passing through the net 15 in the middle of the discharge passage.
From this state, turn the pipe member as shown in FIG.
If the block 20 is closed, there is no air mixing and only the liquid is discharged. When the gap between the liquid level and the small hole 20 becomes large due to the decrease of the liquid in the container, the second suction valve 24 immediately below the small hole 20 sucks the liquid between the small hole position and the liquid level position. It is possible to prevent air from flowing into the passage tube 6 from the small hole, and during the air discharge, even if the actuator is moved up and down, only the air is discharged and the discharge of bubbles or liquid becomes impossible.

"Embodiment" 1 is a cylinder which is vertically provided in a container body and has an outward flange 2 provided at the upper end thereof for engaging with the top surface of the container body. It is provided so that it may be clamped by the inward flange 4 at the upper end of the engagement cylinder 3 to be screwed into. A suction valve 5 is provided on the inner surface of the bottom of the flange, and a suction passage pipe 6 is vertically provided from the lower end of the cylinder. Piston pull-out prevention cylinder 7 on top of cylinder
Are fitted.

An actuator 12 having a cylindrical piston 9 at the lower end of the stem 8 and a press-down head 11 with a nozzle 10 fitted at the upper end of the stem 8 stands from inside the cylinder 1. A discharge valve 13 is provided in the upper end portion of the stem, and a small mesh net 15 for mixing air and liquid is horizontally provided on the upper inner surface of the stem fitting cylinder 14 that hangs down from the pressing head. The pressing head is formed by fitting upper and lower two members 11a and 11b in the illustrated example.

Reference numeral 16 denotes a spring for urging the operation element 12 upward, and 17 denotes an insertion rod which is loosely inserted into the stem 8 when the operation element is lowered to reduce the space in the stem.

An air intake small hole 20 is formed in the upper part of the above-mentioned suction passage pipe 6. As shown in the figure, a suction pipe 6c is connected via a joint pipe 6b to a vertically installed pipe 6a that directly hangs from the lower end of the cylinder 1 as shown.
Are preferably connected to each other. In the first embodiment shown in FIGS. 1 to 4, the upper part of the joint pipe 6b is made to have a large inner diameter part, the upper part is fitted to the outer surface of the vertical pipe 6a, and the middle part of the joint pipe is made to have a small outer diameter. The air intake small hole 20 is provided above the small outer diameter part as a part.
And an inward flange on the lower inner surface of the small outer diameter part
21 is provided, and the upper end of the suction pipe 6c is fitted in the lower joint pipe portion. A valve forming member that projects a valve plate 23 from a part of an inner edge of a lower end of a cylindrical portion 22 through an elastic connecting piece is provided in a joint pipe portion between the small air intake hole 20 and the inward flange 21. The second suction valve 24 is provided by placing the plate 23 inwardly on the flange and fitting it. As shown in FIGS. 2 and 3, a ridge 25 is vertically provided on the side of the small-diameter portion of the air suction hole 20, and the outer surface of the small-diameter portion is rotatable using the ridge as a stopper. FIG. 2 shows that a short tubular member 26 having a C-shaped cross section is fitted thereinto, and the short tubular member 26 is rotated using a finger hook 27 attached to a part of its outer surface.
As shown in FIG. 3, the small air intake hole 20 can be opened and closed.

The second embodiment shown in FIGS. 5 and 6 shows an example in which the joint pipe 6b is further formed of two members, an upper joint pipe 31 and a lower joint pipe 32. The upper joint pipe 31 is a vertical pipe with the upper half as a large inner diameter part.
6a Attach to the outer surface and form a small air intake hole 20 at the upper end of the lower half, and protrude a valve plate 23 from a part of the inner surface of the pipe wall immediately below the small hole via an elastic connecting piece. In addition, a ridge 25 as a stopper is vertically provided on a part of the side of the small air intake hole 20, and a fitting groove 33 is provided on a lower outer surface. The lower joint pipe 32 also serves as the short tubular member 26 described above. The lower joint pipe 32 has a notch 34 in an upper part thereof, and the protrusion 25 serving as the stopper is positioned in the notch. The lower end of the outer pipe portion 35 is fitted to the lower half outer surface of the lower portion 31 and is rotatable within a range in which both side edges of the notch do not contact both side surfaces of the ridge 25. The inner tube 36 is erected on the semi-inner surface, and the lower half tube 37 is erected from the lower surface of the inward flange, and the upper end of the suction pipe 6c is fitted into the lower half tube. The second suction valve 24 is formed by the upper end surface of the inner pipe portion 36 and the valve plate 23. The finger hook 27 protrudes from the outer surface of the outer tube,
When the one side edge of the notch 34 contacts the one side edge of the ridge 25 as a stopper by the rotation of the lower half joint pipe 32 by the finger hook, the air intake small hole 20 is closed, and the other side edge of the notch The air intake small holes 20 are provided so as to be opened when is rotated until it comes into contact with the other side edge of the ridge 25.

[Effects of the Invention] The present invention has the above-described configuration, and can be used as a foam discharger or a liquid discharger by opening and closing the air suction holes 20, which is convenient. Opening and closing can be performed by turning the short tubular member 26 or the lower joint pipe 32 fitted to the outer surface of the suction passage pipe, so that there is no trouble and the inner surface of the passage pipe portion immediately below the air suction small hole 20 has 2 suction valve 24
Therefore, even when the air intake small hole 20 is opened for use as a foam discharger, unnecessary air flows into the lower part of the passage pipe and thus the amount of air and liquid sucked into the cylinder is reduced. Of the discharge valve 13
Since the net 15 for mixing air and liquid is provided in the middle of the discharge path between the nozzle and the tip of the nozzle hole, foaming can be facilitated.

[Brief description of the drawings]

1 to 4 show a first embodiment of the liquid ejector according to the present invention. FIG. 1 is a half sectional view thereof, and FIG. 2 is FIG. II-II.
3 is a sectional view showing the state where the short tubular member is rotated from the state shown in FIG. 2, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1, FIG. 5 and FIG. 5 shows a second embodiment, FIG. 5 is a half sectional view of a liquid ejector, and FIG. 6 is an exploded perspective view of a main part of the liquid ejector, showing a partial section. 1 ... cylinder, 6 ... suction passage tube 12 ... actuator, 15 ... net 20 ... air intake small hole

Claims (1)

(57) [Scope of request for utility model registration] An actuator with a discharge valve is erected from the inside of a cylinder with a suction valve to be mounted on a container body, and the liquid in the container is sucked into the cylinder by vertical movement of the actuator with respect to the cylinder. In the liquid discharger provided to discharge the liquid in the cylinder from the nozzle at the upper end of the actuator, an air intake small hole 20 is formed in the upper part of the suction passage pipe, which hangs from the lower end of the cylinder 1, and the small hole is formed. A pipe member with a window is fitted to the outer surface of the suction passage tube portion so that the small hole 20 can be freely opened and closed by the rotation of the member, and the second suction pipe is inserted into the inner surface of the passage tube portion immediately below the small hole 20. valve
24. A liquid / liquid switching type liquid discharger characterized in that a liquid and a liquid mixing net 15 are provided in the discharge passage between the discharge valve and the tip of the nozzle hole.