JPH0113576Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This proposal concerns a small hand-operated sprayer.

``Prior art'' A spray head is fitted onto the upper end of a stem that stands up from the container body so that it can be pushed down, and by pushing the head down against the container body, the spray is sprayed from the nozzle hole of the spray head through the stem. It is designed to
The nozzle hole is formed by a nozzle hole member embedded in the front surface of the spray head.

``Problems to be solved by the invention'' Conventional manual sprayers are designed to spread a wide mist in a relatively close area. However, when using insecticides, etc., it may be necessary to spray into narrow gaps between furniture, and in such cases, the mist sprayed at a wide angle will not reach deep into the gaps, and most of the time The disadvantage was that the mist adhered to both sides of the entrance of the gap.

This invention was devised in such a way that the spray angle can be freely changed and the spray can be sprayed widely near at a wide angle, or narrowly and far away at a narrow angle.

"Means for Solving the Problems" A plate 14 is attached to a part of the nozzle hole member 6 of the spray head 3 so that it can be freely attached to and removed from the front of the member, and the plate is attached to the front of the nozzle hole member 6. At this time, a second nozzle hole 5a having a smaller diameter than the first nozzle hole 5a, which can overlap with the first nozzle hole 5 of the nozzle hole member, was bored in the plate 14.

"Operation" When spraying is performed with the plate body 14 removed from the front surface of the nozzle hole member 6 as shown in FIG. 1, the first nozzle hole 5
It erupts from a wide angle. If you want to eject at a narrow angle, attach the plate 14 to the front surface of the nozzle hole member 6 as shown by the two-dot chain line in FIG.
The nozzle hole 5a is overlapped with the first nozzle hole 5, and spraying is performed in this state.

Since the second nozzle hole 5a has a smaller diameter than the first nozzle hole 5, the mist ejected from the second nozzle hole 5a can be ejected far away at a narrow angle.

"Embodiment" An embodiment of the present invention will be described below with reference to the attached drawings. In the figure, reference numeral 1 denotes a mounting part that is removably attached to the container by screwing or other means, 2 an engagement tube extending upward from the attachment part 1, and 3 a locking part that does not slip out from the engagement tube 2. It is a depressable spray head that is inserted into and guided by it.

This type of sprayer is well known, so to briefly explain the main parts, the mounting part 1 is equipped with a vertically long cylinder that hangs downward. A riser pipe is installed vertically. On the other hand, the cylindrical piston that slides up and down in the cylinder has a stem that penetrates through the engagement tube 2 and projects upward to communicate with the spray head 3.
This integral body of the stem, piston, and spray head 3 is always urged upward by a spring built into the cylinder, and a suction valve and a discharge valve are provided at the upper end of the suction pipe and the lower end of the stem, respectively. .
Reference numeral 5 designates a first nozzle hole of the spray head 3, and this first nozzle hole 5 is bored in an end plate 7 of a nozzle hole member 6 in the shape of a tip.
There are a pair of radial inlets 8,8 in opposite directions communicating with the nozzle hole 5, the other ends of these inlets 8,8 communicating via an annular channel 9, a transverse channel 10 with the liquid channel of the stem. Therefore, the high-pressure liquid in the liquid path passes through the passage 10, the annular passage 9, and the pair of introduction passages 8, 8.
It is guided to the nozzle hole 5.

With this structure, under normal conditions, the cylinder is filled with the liquid in the container sucked up through the suction pipe, and in this state, the spray head 3 pushes the piston downward against the spring through the stem. Since the upper opening of the piston is sealed with a discharge valve, the downward movement increases the hydraulic pressure in the cylinder, and when this hydraulic pressure reaches a predetermined value, it pushes up the discharge valve and releases the liquid in the cylinder. After passing through the gap between the discharge valve and the stem, it is sprayed outward from the first nozzle hole 5 via the above-mentioned path in the form of a mist. When the depressing operation is stopped when the liquid in the cylinder is almost ejected, the ejection head 3, stem, and piston return to their original state due to the spring. The liquid inside flows into the cylinder through the suction pipe and suction valve, and one cycle of the spraying operation is completed.

Here, in this case, as shown in the enlarged view of FIG.
A plate 14 is attached to the hinge portion 12 in which a nozzle hole 5a having a smaller diameter than the first nozzle hole 5 is bored at the hinge 13, and the plate 14 is attached to the front surface of the nozzle hole member 6. By attaching the second nozzle hole 5a to the first nozzle hole 5, the nozzle hole diameter of the spray liquid can be reduced and the spread of the spray liquid can be reduced. In the figure, 15 indicates a stopper, and 16 indicates a hole for the stopper.

"Effects of the Idea" Since the present invention has the above-described configuration, by attaching and detaching the plate 14 to the nozzle hole member 6, it is possible to freely select between wide spraying at a wide angle and relatively nearby spraying and spraying at a narrow angle. This allows the spraying at a narrow angle to disperse the mist over long distances, making it easy to spray insecticides deep into the gap between a wall and furniture, for example.

[Brief explanation of the drawing]

FIG. 1 is an upper front view showing a main part of the small manual sprayer according to the present invention, and FIG. 2 is an enlarged sectional view of the main part. DESCRIPTION OF SYMBOLS 1... Mounting part, 3... Spraying head, 4... Stem, 5... First nozzle hole, 5a... Second nozzle hole, 14... Plate body.

Claims (1)

[Scope of utility model registration request] A plate member 14 is attached to a part of the nozzle hole member 6 of the spray head 3 so that it can be attached to and removed from the front surface of the member. When the plate member is attached to the front surface of the nozzle hole member 6, the nozzle hole member 6 A small manual sprayer characterized in that a second nozzle hole 5a having a smaller diameter than the first nozzle hole is formed in a plate body 14, and the second nozzle hole 5a can overlap with the first nozzle hole 5.