JPH064906Y2 - Fog, direct switching injector - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a manual mist and direct switching injector that can selectively eject a content liquid into two forms, i.e., a mist state or a direct water column.

"Prior Art" This type of injector is a well-known so-called manual small-sized sprayer, in which a water column nozzle hole having no spin path is provided outside the mist nozzle hole having a spin path in the injection head to be pushed down, The selection is made by switching these nozzle holes.

Several methods of this type have been proposed in the past. To give an example, a mist nozzle hole and a water column nozzle hole are opened on both sides of the injection head, and a window is opened on the outer surface of the injection head. There is one that covers the rotary head, rotates this rotary head 180 degrees, and matches the window with any nozzle hole so that fog or straight can be selected.

[Problems to be solved by the invention] According to the conventional injector described above, mist and direct injection can be performed by simple operation, but for the convenience of rotatably covering the outer surface of the injection head, the water column is used. The nozzle hole is opened on the side surface of the injection head like the mist nozzle hole, and therefore has the disadvantage that the directionality is weak and the water column cannot be ejected far.

In the present invention, a reverse L-shaped tubular switching plug as a mist / direct switching member is rotatably incorporated in an injection head, and a handle portion projecting in a nozzle tubular shape in the lateral direction of this plug is used as a water column injection tube, and a water column to be ejected There is a mist that is designed to give a strong directivity to the direct injection machine.

[Means for Solving the Problems] The mist / direct switching injector of the present invention has a suction valve 7 at the bottom opening.
And a small-diameter cylinder 1 for forming a small-diameter pressurizing chamber A provided inside the mouth-neck of the container body, and a small-diameter cylinder 1 fitted to the mouth-neck of the container body to fix the small-diameter cylinder 1, and a guide tube 8 from the upper surface. And a large-diameter cylinder 3 for forming a large-diameter pressurizing chamber B which is internally fitted in the guide cylinder 8 so as to be vertically movable by opening a valve port 10 of a discharge valve 9 on the upper bottom. The large and small diameter pistons 11 and 12 at the upper and lower ends are inscribed in the large and small diameter cylinders 3 and 1 and are provided between the cylinders 3 and 1, and the upper and lower shaft cores have a chevron sufficiently real part. As the valve body 13 of the discharge valve 9, the movable communication member 4 which is in communication with the pressurizing chambers A and B through the internal communication passage 14 and is constantly urged upward by the return spring 15, and the through hole which vertically extends to the central portion. 16 is provided, and a vertical axis 18 having a groove 17 is provided on one side of the upper portion of the lower shaft core portion of the through hole 16 and is connected to the through hole 16 on one side in a direction different from that of the groove 17. An injection head 5 which is opened by passing through a spray nozzle hole 19 and is attached to the upper portion of the large-diameter cylinder 3 so as to communicate with the valve port 10, and is fitted into the through hole 16 by being externally fitted to the vertical axis 18. It is an inverted L-shaped tube in which a nozzle-tube-shaped water column injection tube 21 is bent laterally and protrudes from the upper end of the rotatable vertical tube 20, and the spray nozzle hole 19 or the water column is provided at one lower side of the vertical tube 20 depending on the rotating position. One of the injection pipes 21 is selected and the switching plug 6 is formed by cutting out a window 22 for communicating with the valve port 10 through the through hole 16.

"Operation" Next, the operation of the above configuration will be described. For convenience,
It is assumed that the pressure chamber A has already sucked up the liquid in the container body, and the switching plug 6 has a window 22 thereof as shown in FIGS.
As shown in (a), this nozzle hole 1 is located at the spray nozzle hole 19
It is assumed that the 9 side is selected. In this state, when the injection head 5 is pushed down against the return spring 15, the injection head 5 and the large diameter cylinder 3 and the movable communication member 4 are pushed downward with the discharge valve 9 closed. As a result, the pressure chamber A is narrowed, so that the liquid in the pressure chamber A is pressurized. Then, the high-pressure liquid in the pressurizing chamber A enters the pressurizing chamber B through the communication passage 14.

Here, since the inner diameter of the pressurizing chamber B is larger than the inner diameter of the pressurizing chamber A, the lower pressure due to the liquid in the pressurizing chamber B is larger than that in the pressurizing chamber A, and thus the liquid in the pressurizing chamber B has a large diameter. The movable communication member 4 is pushed downward via the piston 11, whereby the discharge valve 9 is opened, and the high pressure fluid in the pressurizing chambers A and B is discharged from the valve port 10 through the window 22 of the switching plug 6 and the nozzle hole 19. It is ejected in a mist state to the outside.

When one injection is completed and the pushing down of the injection head 5 is stopped, the injection head 5, the large-diameter cylinder 3, and the movable communication member 4 are returned to the state shown in FIG. , B become negative pressure, the liquid in the container body is sucked into the pressurizing chamber A through the suction valve 7.

Next, when directly injecting the content liquid into a water column, see FIG.
As shown in (b), the switching plug 6 is rotated, for example, by 90 degrees, the window 22 is positioned in the groove 17 of the vertical axis 18, and the water column injection pipe 21 is connected to the window 22 and the groove.
The liquid content can be ejected in a water column shape from the water column ejection pipe 21 by communicating with the valve port 10 via 17 and pressing down the ejection head 5 in the same manner.

[Example] An example will be described below with reference to the drawings. The fog of the present invention,
The direct switching injector includes a small diameter cylinder 1 for forming a small diameter pressurizing chamber A, a mounting member 2 for mounting each part, and a large diameter pressurizing chamber B.
It is composed of a large-diameter cylinder 3 for forming, a movable communication member 4 which communicates the two pressurizing chambers A and B, an injection head 5 which is pressed down and a fog, and main members of a switching plug 6 for direct switching.

The small-diameter cylinder 1 has a vertically long shape. The rod member 23 is housed in the inner shaft core portion, and the spherical suction valve 7 is provided in the bottom opening.
Further, a suction pipe 24 that hangs downward from the bottom opening inside the container not shown communicates from the bottom opening, and the outward flange 25 at the upper end is hung on the top of the mouth neck of the container to open the mouth neck. It is installed inside.

The mounting member 2 is a cap-shaped member, and a large opening is made in the central portion of the top wall, leaving the peripheral edge portion, and an inner guide cylinder 8 whose upper end is reduced in diameter is provided upright from the peripheral edge of the opening, and an outer guide cylinder is provided outside thereof. 8a
Is erected and attached by screwing to the neck of the container body. At this time, the small diameter cylinder 1 is pressed and fixed to the container body through the outward flange 25.

The large-diameter cylinder 3 has a valve opening 10 on the upper bottom for a small-diameter discharge valve 9.
A discharge passage cylinder 26 is erected from the outer circumference of the valve opening 10, and the engaging projection 27 on the outer surface of the lower end is engaged with the reduced diameter portion to move up and down to the inner guide cylinder 8 so as not to slip out. It is fitted as much as possible.

The movable communication member 4 has a cylindrical portion in the lower half and a narrow solid portion in the upper portion, and the protruding end of this solid portion has a chevron shape to form a valve body 13 for the discharge valve 9, and grooves are formed on both outer surfaces of the upper solid portion. The upper and lower pressurizing chambers A and B are provided by connecting these grooves through the holes 28 and 28 into the cylindrical portion.
On the outer surface of the upper half of the communication body that forms the communication passage 14 for communicating the
Piston member 29 having a cylindrical large-diameter piston 11 formed at the upper end
The small-diameter piston 12 at the lower end of the cylinder is inscribed in the small-diameter cylinder 1, and the large-diameter piston 11 is inscribed in the large-diameter cylinder 3 so that they can be raised and lowered by passing between the cylinders 1 and 3. It is provided and always urged upward by a return spring 15. The lower end of the piston member 29 is also a cylindrical piston 30.

The injection head 5 has a through hole 16 that vertically extends through the center thereof, and a spray nozzle hole 19 that communicates with the lower portion of the through hole 16 on the outer surface of the front side. The vertical axis 18 is provided by the support plates 31, 31 which are thin in the radial direction.
A groove is formed on one side of the spray nozzle hole 19 in a direction different from the spray nozzle hole 19 by 90 degrees.
17 is provided as a recess, and a communication hanging cylinder 32 hanging from the lower surface is externally fitted and fixed to the discharge passage cylinder 26 so as to be communicated and fixed to the large diameter cylinder 3. Therefore, the spray nozzle hole 19 communicates with the valve port 10 of the discharge valve 9 through the through hole 16. This spray nozzle hole 19
Of course, there is a spin path behind it. Reference numeral 33 is an outer hanging cylinder that is fitted in the outer guide cylinder 8a. In addition, the injection head 5 has a concave portion formed by cutting off a fan-shaped portion of a quarter of the top surface.
34.

The switching plug 6 is an inverted L-shaped tubular body in which a water column injection tube 21 which is a nozzle tube in the shape of a nozzle is projected from the upper end of the vertical tube 20 in the lateral direction, and the vertical tube 20 is fitted onto the vertical axis 18 of the injection head 5. Let through hole 16
, And the water column injection pipe 21 is positioned on the top concave surface portion 34, and therefore is attached to the injection head 5 so as to be rotatable within a range of 90 degrees. A window 22 is cut out on one side opposite to the direction of the water column injection pipe 21 below the vertical pipe 20 of the switching plug 6, and the vertical pipe 20
The lower end of the support plate does not reach the support plates 31 and 31, and the support plates 31 and 31 are attached with a gap formed therebetween.

As shown in FIGS. 1 and 3 (a), this switching plug 6 has a handle water column injection pipe 21 located on the opposite side of the spray nozzle hole 19,
The window 22 is located at the introduction portion of the spray nozzle hole 19, and therefore the nozzle hole 19 communicates with the valve port 10 of the discharge passage cylinder 26 through the gap a from this window 22 through the through hole 16 between the support plates 31, 31. , Groove 17 at this time
Is blocked from the through hole 16 by the wall of the vertical pipe 20, so that the water column injection pipe 21 is blocked from the valve port 10. That is, at this position, the spray nozzle hole 19 is selected, and by pushing down the injection head 5, the content liquid can be ejected in a mist state from the nozzle hole 19.

Next, when the switching plug 6 is rotated by 90 degrees as shown in FIG. 3 (b), the window 22 is positioned in the groove 17 and therefore the water column injection pipe 21 is moved into the groove.
From 17 through the window 22 and the gap a, through the through hole 16 between the support plates 31, 31 to communicate with the valve port 10 of the discharge pipeline 26, at which time the spray nozzle hole 19 is blocked by the wall of the vertical pipe 20. There is. That is, at this position, the water column injection pipe 21 is selected, and the injection head 5
By pushing down, the liquid content can be ejected from the water column injection pipe 21 into a water column.

Except for the return spring 15, the above-mentioned parts are molded and manufactured from a synthetic resin material.

[Effect of the Invention] As described above, in the present invention, the water column injection pipe 21 is provided with the portion of the handle which is projected laterally in the nozzle tubular shape as the mist / direct switching member.
A reverse L-shaped tubular switching plug 6 is used, and this switching plug 6 is incorporated into a central communicating portion of the injection head 5 having a spray nozzle hole 19 on one side through a vertical pipe 20. The water column injection pipe 21
Can have an appropriate length, so that a strong directionality can be obtained and the water column can be ejected far away.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the fog / direct switching injector of the present invention, FIG. 2 is a partial perspective view showing the structure of the fog / direct switching injection head of the same embodiment, and FIG. ) And (b) are the fog of the embodiment,
It is a top view which shows the position of the switching plug at the time of direct switching. DESCRIPTION OF SYMBOLS 1 ... Small diameter cylinder, 2 ... Mounting member 3 ... Large diameter cylinder, 4 ... Movable communication member 5 ... Injection head, 6 ... Switching plug

Claims (1)

[Scope of utility model registration request] 1. A small-diameter cylinder 1 for forming a small-diameter pressurizing chamber A which is provided in a neck portion of a container body by providing a suction valve 7 at the bottom opening.
And a mounting member 2 fitted in the neck portion of the container body to fix the small diameter cylinder 1 and to erect the guide tube 8 from the upper surface.
A large-diameter cylinder 3 for forming a large-diameter pressurizing chamber B that is internally fitted in the guide cylinder 8 so as to be vertically movable by opening a valve port 10 of a discharge valve 9 on the upper bottom, and a large diameter at the upper and lower ends; Small-diameter pistons 11 and 12 are inscribed in the large-diameter and small-diameter cylinders 3 and 1 so as to extend between the cylinders 3 and 1, and a chevron-shaped portion of the upper end shaft core is used as the valve body 13 of the discharge valve 9. , A movable communication member 4 which communicates the pressurizing chambers A and B with each other through an internal communication passage 14 and is constantly urged upward by a return spring 15, and a through hole 16 which vertically escapes in a central portion. The lower shaft core is provided with a vertical axis 18 in which a groove 17 is recessed on one side of the upper part, and a spray nozzle hole 19 communicating with the through hole 16 is opened on one side of a direction different from that of the groove 17 to open the large axis. The injection head 5 mounted on the upper part of the diameter cylinder 3 so as to communicate with the valve port 10, and the rotatable vertical tube 20 externally fitted to the vertical axis 18 and fitted into the through hole 16 from the upper end to the nozzle. Jo plume injection tube 21
Is a reverse L-shaped tube that is bent horizontally to project,
One of the spray nozzle hole 19 and the water column injection pipe 21 is selected on the one side of the lower portion depending on the rotation position, and the valve opening is provided through the through hole 16.
A mist / direct switching ejector consisting of a switching plug 6 having a window 22 cut out for communicating with 10.