JPS632121Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sprayer for spraying mist or foam, and is designed to prevent liquid leakage during transportation.

Conventionally, vertical reciprocating pump-type mist sprayers have been widely used. The ejector has a suction valve at the bottom of the cylinder that hangs down from the inner surface of the member to be attached to the mouth of the container body, and the cylindrical piston is fitted into the cylinder or the piston is fitted to the base end and attached. There is a discharge valve in the stem that penetrates the top wall of the member, and when the jet head fitted with the nozzle fitted to the upper end of the stem is pushed down, the discharge valve opens and the liquid in the cylinder is jetted out, and when the jet head is released, The head is configured to rise and at this time suck the liquid within the container into the cylinder. By the way, the suction and discharge valves normally use ball valves, and when the injector falls down, the ball valve will separate from the valve seat due to its own weight, and the functions of the suction and discharge valves will be affected. This caused the liquid to leak.

This design prevents liquid leakage by using a stem hole closing plate that is watertightly fitted to the inner surface of the upper part of the stem during transportation, and also allows consumers to easily open the stem hole when using the stem. This is what I did.

Referring to the drawings below, reference numeral 1 denotes a mounting member in which a peripheral wall 3 is vertically disposed from the periphery of a top wall 2 having an insertion hole in the center thereof to be fitted onto the outer surface of the mouth and neck of the container body.

Reference numeral 4 denotes a cylinder, which is vertically installed with a large diameter portion 5 attached to its upper end fitted into the upper inner surface of the peripheral wall of the mounting member. The cylinder has a suction valve 6 made of an elastic plate at the bottom, and a suction pipe 7 is vertically provided in communication with the suction valve hole.

A cylindrical piston 8 is fitted into the cylinder so as to be movable up and down, and the piston is fitted onto the lower end of a stem 9 which passes through an insertion hole in the top wall of the mounting member so as to be movable up and down. Nozzle 1 is installed at the upper end of the stem.
A jetting head 11 with a zero is fitted. A discharge valve 12 is provided within the cylindrical piston or stem.

A coil spring 13 is housed inside the cylinder and urges upward an actuating member formed by a cylindrical piston, a stem, and an ejection head.

In the above-mentioned conventional structure, in the present invention, the stem hole closing plate 14 is fitted to the upper inner surface of the stem in a watertight manner.
Further, as shown in FIG. 2, a liquid circulation groove 15 is provided on the lower inner surface of the stem hole at the position where the closing plate is fitted. Further, an outer cylinder 16 shorter than the stem is removably fitted onto the outer surface of the stem 9. The outer cylinder has upper and lower ends in contact with the top wall of the mounting member and the ejection head to prevent the ejection head from lowering and to reduce the depth at which the ejection head is fitted into the stem. Furthermore, when the outer cylinder is removed from a part of the lower surface of the ejection head and the ejection head is deeply fitted to the stem, it is loosely inserted into the stem hole and the lower end connects the closure plate to the liquid distribution groove bored portion. A push-down rod 17, which can be pushed down to open the stem hole, is positioned above the closing plate and is provided vertically.

The present invention has the above-mentioned structure, and since the closing plate 14 is fitted into the stem hole to seal it watertight, even if the suction valve, discharge valve, etc. open due to the ejector falling down, liquid will still flow through the stem hole. There is no leakage at all,
Further, a liquid circulation groove is provided on the inner surface below the position where the closing plate is fitted, and when the head is deeply fitted to the stem from the ejection head, the closing plate is pushed down to the perforated part of the liquid circulation groove to open the stem hole. Since the push-down rod 17 is provided, it is extremely easy to open the stem hole.Furthermore, since the outer cylinder is fitted to the stem and the ejection head is kept in a shallowly fitted state with the stem, it is easy to transport. There is no risk that the ejection head will fit deeply into the stem at times, and the stem hole will become unoccluded. Since the structure is extremely simple, the cost will not be higher than conventional ones.

[Brief explanation of the drawing]

Figure 1 is a half-sectional view of the proposed ejector, and Figure 2 is the first
FIG. 3 is an enlarged cross-sectional view of the stem. DESCRIPTION OF SYMBOLS 1... Mounting member, 4... Cylinder, 8... Cylindrical piston, 9... Stem, 16... Outer cylinder.

Claims (1)

[Scope of utility model registration request] A cylinder 4 is suspended from the upper inner surface of a mounting member 1 that can be fitted into the mouth of the container, and a cylindrical piston attached to the lower end of a stem 9 passes through the top wall of the mounting member. A jet head 11 with a nozzle is removably attached to the upper end of the stem, and a suction valve 6 is fitted to the bottom of the cylinder.
Also, there is a discharge valve 1 in the stem or cylindrical piston.
2, a stem hole closing plate 14 is watertightly fitted to the upper inner surface of the stem 9, and a liquid circulation groove 15 is provided on the inner surface of the stem hole below the position where the closing plate is fitted, and the stem On the outer surface, an outer cylinder 16 is removably fitted, which contacts the top wall of the mounting member and the ejection head at both upper and lower ends to prevent the ejection head from lowering and to reduce the depth of fitting of the ejection head to the stem. When the outer cylinder is removed from the ejection head and the ejection head is deeply fitted to the stem, it is loosely inserted into the stem hole and the lower end pushes the closing plate down to the liquid distribution groove perforation. A mist sprayer characterized in that a push-down rod 17 capable of opening a stem hole is vertically positioned above a closing plate.