JPH0810385Y2 - Small atomizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a manually operated small-sized sprayer.

"Prior Art" As is well known, this type of atomizer has a cylinder inside the mouth of the container, and a suction pipe is hung from the bottom opening of the cylinder to the lower part of the container, and a cylindrical piston inside the cylinder. The lower end of the stem is communicated and fixed, and the atomizing head is provided with a nozzle hole at the upper end of the vertically movable stem that is urged by a return spring and protrudes upward and outward, and a suction valve is provided at the cylinder bottom opening. A discharge valve is installed in the cylinder, and the pressing head is pushed down against the return spring to pressurize the liquid in the cylinder, and the pressurizing liquid opens the discharge valve to eject the liquid in a mist form from the nozzle hole. It is a thing.

[Problems to be solved by the invention] As described above, the conventional sprayer has a structure in which the movable part is pushed upward by the return spring, and the movable part is pushed down against the return spring during spraying. Therefore, a corresponding pressing force is required.

However, this kind of sprayer is not necessarily limited to the case where the required amount is sprayed by the pressing operation of a large stroke that resists the return spring as in the conventional case, and depending on the purpose, it may be continuously added in small amounts. In some cases, spraying may be performed.

The present invention has a structure in which the conventional return spring is removed and the spraying head is continuously moved up and down by a small stroke with a fingertip to continuously spray a small amount, and the spraying operation is extremely light. To get.

[Means for Solving the Problem] The small-sized sprayer of the present invention comprises a container body 1, and a suction pipe 7 extending downward from a bottom opening provided in the container body 1 from a mouth portion and provided with a suction valve 6. A cylinder 2 in which a cylindrical piston 8 that hangs in communication and is slidable up and down is internally fitted; a stem 3 that is externally fitted and communicated with the cylindrical piston 8 at its lower portion; Groove 9 for communication in the outer circumferential direction
And a discharge valve 4 that is vertically recessed in the stem 3 and is vertically urged by a spring 10 to close the upper end opening of the cylindrical piston with a solid portion, and a nozzle hole 11 on one side. And a spraying head 5 in which the finger insert ring 12 is erected from the upper surface, and is connected to the upper end of the stem 3 by communication.

"Operation" In the small sprayer of the present invention, when the cylindrical piston 8 is pulled upward through the spraying head 5, the inside of the cylinder 2 becomes negative pressure, so that the suction valve 6 is opened and the liquid in the container 1 is sucked. If it is sucked up into the cylinder 2 from the lifting pipe 7 and the cylindrical piston 8 is pushed down via the spraying head 5,
The liquid in the cylinder 2 is pressurized and becomes high pressure, and this high pressure liquid pushes up the discharge valve 4 against the spring 10 to open the valve, so that this high pressure liquid passes through the stem 3 and from the nozzle hole 11 of the spray head 5. It is ejected in a mist form to the outside.

Since the small sprayer of the present invention does not have a return spring that pushes up the movable part, when spraying, as shown by the two-dot chain line in the figure, the fingertip is inserted into the finger holder ring 12 and the fingertip is continuously moved up and down. As a result, the spraying head 5 can be moved up and down via the finger insertion ring 12, and the liquid suction and spraying operations described above can be alternately and continuously performed. Therefore, spraying in small amounts can be continuously performed with an extremely light operating force. Can be done.

[Embodiment] An embodiment will be described below with reference to the drawings. In the small-sized sprayer of the present invention, a return spring that pushes up and urges a movable portion upward is omitted, and a spraying head 5 is inserted during spraying. ring
It is characterized in that it is continuously moved up and down with a fingertip through 12 to continuously spray a small amount.

The container body 1 has a mouth / neck portion 13 having a relatively large diameter in the upper portion, and a thread is formed on the outer surface of the mouth / neck portion 13.

The cylinder 2 is of a vertical type in which a part of an upper portion of the base plate 15 on which a mounting peripheral wall 14 is erected from the peripheral edge is expanded and protrudes upward to hang down. 13 A screw cap 16 is screwed on the outer surface of the container body 1 and is vertically installed in the container body 1 by fixing it internally. A spherical suction valve 6 is provided in the reduced diameter bottom opening, and the container body 1 is also provided in this bottom opening.
A suction pipe 7 that hangs inward and downward is communicatively coupled, and a cylindrical piston 8 is fitted inside so as to be vertically slidable.

The cylindrical piston 8 has a downwardly cup-shaped upper bottom centered through a thin tube 17, and a skirt-shaped elastic peripheral wall at the lower end.
18 is provided, and the elastic peripheral wall 18 is pressure-contacted with the inner wall surface to be liquid-tightly fitted in the cylinder 2.

The stem 3 has a lower part externally fitted to the fine fitting 17 on the upper part of the piston 8, and is engaged and communicated with each other by engaging mutually engaging projections, and penetrates the top wall of the screw cap 16 and rises to the upper outside. is there. A piston 19 for preventing negative pressure in the container body 1 is externally fitted and fixed to the outer surface of the lower portion of the stem 3. That is, the piston 19 closes the hole 20 in the upper portion of the cylinder 2 when it is pressed down and pressurized, and opens the hole 20 when sucking the liquid into the cylinder 2.

The discharge valve 4 has a shape in which a communication groove 9 is provided in a stepwise manner in a circumferential direction of a round shaft-like short shaft body. The discharge valve 4 is fitted in the stem 3 so as to be vertically movable, and is always installed in the stem 3. Is pushed down by the
17 The upper end opening is closed and the valve is closed. This discharge valve 4
When the liquid in the cylinder 2 is pressurized to a high pressure, the high pressure liquid pushes up against the spring 10 to open the valve, and the high pressure liquid is pressure-fed to the stem 3 side through the communication groove 9.

The spraying head 5 has a nozzle hole 11 formed on one side, and the nozzle hole 11 communicates with the stem 3 via a swirling groove for swirling the high pressure liquid behind the nozzle hole 11. On the upper surface of the head 5, a finger insertion ring 12 for inserting a finger is erected.

With the above structure, since there is no return spring for pushing up the movable part, the spraying head 5 can be pushed down lightly and easily because the force for pushing down the return spring 5 is unnecessary.
The spraying head 5 can be moved up and down by inserting a fingertip into the cylinder and moving the inserted fingertip up and down. The vertical movement of the head 5 sucks up the liquid into the cylinder 2 and sprays it from the nozzle hole 11 by pressurizing the liquid. Therefore, by continuously moving the fingertip up and down, it is possible to continuously spray a small amount.

[Advantage of Invention] As described above, in the present invention, the conventional return spring for pushing up the movable portion is omitted, and instead, the finger-insertion ring 12 is provided on the upper surface of the spray head 5, and the spray head 5 is used for spraying. Since the fingertips are continuously moved up and down via the finger putting ring 12 to continuously spray a small amount, it is possible to provide a small sprayer capable of spraying with an extremely light operating force.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the small sprayer of the present invention. 1 ... Container body, 2 ... Cylinder, 3 ... Stem 4 ... Discharge valve, 5 ... Spraying head

Claims (1)

[Scope of utility model registration request] 1. A container body (1), and a cylinder vertically extending from the mouth of the container body (1), having a suction pipe (7) communicating downward from the bottom opening provided with a suction valve (6), and vertically slidable. Shaped piston 8
A cylinder 2 in which is fitted inside, and a stem 3 which is externally fitted and communicated with the cylindrical piston 8 at a lower part thereof and which is erected upward to the outside,
A groove 9 for communication is formed in a discrete manner in the outer circumferential direction of the short shaft body and is vertically movably fitted into the stem 3 and is constantly urged downward by a spring 10 so that the upper end opening of the cylindrical piston is filled with a solid portion. The discharge valve 4 to be closed is connected to the upper end of the stem 3 by communicating with the upper end of the stem 3 by forming a nozzle hole 11 on one side, and a finger inserting ring is provided from the upper surface.
A small sprayer comprising a spraying head 5 in which 12 is erected.