JPS5841101B2 - Vertical and inverted liquid sprayer - Google Patents

Description

[Detailed description of the invention] The present invention relates to a liquid sprayer for both normal and inverted use.

Conventionally, as a manual liquid sprayer, a cylinder is installed vertically in a container body for storing liquid, and a spray head is projected from the upper end of the cylinder. When the head is pushed down, a discharge valve above a pump chamber formed in the cylinder opens. The liquid inside the container is sprayed from the head, and when the head is released, the head rises to its original position. At this time, the suction valve provided below the pump chamber opens, and the liquid inside the container is sucked into the chamber. Manual sprayers are widely known.

However, in this type of sprayer, a suction pipe is installed vertically from the lower end of the cylinder to the bottom wall of the container body, and the liquid is drawn up into the pump chamber through the suction pipe, so the sprayer is placed upside down. When this happens, the liquid moves toward the mouth of the container body due to its own weight, and as a result, the lower end of the suction pipe is exposed above the liquid surface, making it impossible to suck up the liquid into the pump chamber.

The sprayer according to the present invention eliminates the above-mentioned drawbacks, and is not prone to malfunctions even when the sprayer is repeatedly operated upside down. In addition, when the sprayer body is attached or detached for liquid replenishment, it may touch the container body and cause damage. This is provided so that there is no need to provide a protruding portion from the cylinder.

The embodiment shown in FIGS. 1 and 2 will be explained below.
Reference numeral 1 designates a container body for storing liquid, and 2 designates a neck portion of the container body having a thread 3 provided on its outer surface.

An outward facing flange 5 attached to the outer surface of the mouth of a cylinder 4 suspended vertically into the container is placed on the top surface via a backing 6, and the lower part is inserted into the cylinder and the upper end is attached to the top surface. A spray member 8 having a spray head 7 attached thereto is provided with the head and the upper part of the communication pipe protruding.

A flange 9 is provided around the lower outer periphery of the spray head.

10 is a cap which also serves as a spray head presser.

That is, the outer flange of the cylinder is screwed into the neck part 2 with a screw 12 provided on the inner surface of the peripheral wall 11, and the outer flange of the cylinder is connected to the backing between the inward flange-like wall part 13 projecting inwardly from the upper end of the peripheral wall and the liquid inside the container. An inward flange 1 attached to the upper end of a cylindrical wall part 14 which is held in place and stands up from the inner end of the wall part.
The spray head is inserted into the flange 5 from below so that the flange 9 of the spray head can be engaged with the flange.

The lower end of the cylinder 4 is formed with a small outer diameter part 4a, and in conventional well-known sprayers, the upper end of the suction pipe is fitted into the small outer diameter part, and the lower end reaches the bottom wall of the container body. Install a suction pipe vertically.

Although not shown, there is a pump chamber inside the cylinder, and a suction valve is provided below the pump chamber, and a discharge valve is provided above the pump chamber. When the spray head is pushed down, the discharge valve opens and the liquid in the pump chamber flows through the nozzle hole 7a of the spray head. The skirt-shaped piston at the lower end of the communicating tube that is sprayed and separated rises, creating a negative pressure in the pump chamber, which opens the suction valve and sucks the liquid inside the container into the pump chamber.

The structure described above is the same as that of conventionally known structures (including pressure accumulating type structures).

The cylindrical body 20 is fitted into the above cylinder.

The cylindrical bodies include an upper cylindrical body 21 and a lower cylindrical body 2 fitted to the lower part thereof.
2, and the upper cylinder body is fitted into the cylinder from below, leaving an appropriate gap 23 between the backing 6 and the upper end surface.

The inner diameter of the upper end of the upper cylinder is made larger than that of the lower part 24 to facilitate the inflow of liquid, and the inner wall surface of the lower part is provided with vertical grooves 25, 25 as liquid flow paths in the direction. .

The vertical grooves 25, 25 are provided up to the upper side of the small outer diameter portion 4a of the cylinder and open into the cavity 26 on the side of the outer diameter portion.

Further, a short cylindrical valve body 27 is loosely fitted into the small outer diameter portion 4a of the cylinder, and a flow path forming pipe 28 is fitted below it.

The throttle tube is provided with an appropriate number of through holes 29 communicating from the upper end surface to the lower end surface, and the inner surface is
Further, the outer surfaces can be fitted to the lower inner wall of the upper cylinder in a watertight manner.

An upper valve 30 is formed by the upper end surface of the flow path forming pipe and the valve body 27.
is formed, and the throttle valve is closed when the atomizer is in the upright position shown in FIG. 1, but when it is in the inverted state shown in FIG. 3, the valve body moves under its own weight and opens.

The lower cylinder body 22 is fitted into the lower end of the upper cylinder body.The upper end surface of the cylinder body has a valve seat 31 on the lower inner surface, and a valve hole 3 in the center.
A ball valve 35 is inserted into the cylindrical hole 34 and a suction pipe 36 is inserted from below.
The upper ends of the two fit together in a watertight manner.

The ball valve is movable in the vertical direction, and a lower valve 37 is formed by the valve seat 31 and the ball valve, and the lower valve can be closed in the inverted state of the atomizer shown in FIG.

A gap holder 38 is provided between the lower end surface of the flow path forming tube 28 and the upper end surface of the lower cylinder body 22 to prevent them from coming into close contact and blocking the flow path.

The retainer can protrude from one of the two faces or from the inner wall of the upper cylinder.

With the above configuration, the vertical groove 25, the small outer diameter side cavity 26,
A flow path for when the atomizer is inverted having an upper valve 30 is formed between the through hole 29 and the tube hole 4b in the lower end of the cylinder. A flow path for when the sprayer is erected is formed having a lower valve 37 that passes through 32 and reaches the pipe hole 4b of the cylinder.

To explain the second embodiment shown in FIGS. 4 and 5,
The container body 1, cylinder 4, spray member 8, and cap 10 are the same as in the first embodiment shown in FIGS. 1 to 3.

The upper cylindrical body 21 in the second embodiment has an inner diameter larger than the outer diameter of the large outer diameter portion of the cylinder, and has a valve body portion 40 projecting inwardly from its lower inner surface in a seven-flange shape.

The cylindrical body is loosely fitted into the cylinder, and the small outer diameter portion 4 of the cylinder is
A has seven flange 41 protruding outward from the upper end of the peripheral wall, and through holes 44 and 45 are formed in the lower part of the peripheral wall 42 and the peripheral edge of the bottom wall 43.
A cylindrical member 46 having a cylindrical member 46 is fitted with its bottom wall 43 in a watertight manner so that the tube hole 4b in the small outer diameter portion of the cylinder is not blocked.

In this state, that is, in the erected state of the sprayer shown in FIG. 4, the lower surface of the valve body portion 40 of the upper cylinder body is in contact with the upper surface of the outward flange 41 to be watertightly closed.

The upper valve 47 is formed by these.

A lower cylinder 48 is fitted into the lower end of the upper cylinder.

The cylindrical body has a through hole 50 serving as a valve hole at the center of the bottom wall 49, and a cylindrical portion 51 for fitting the suction pipe 36 is suspended from the lower surface of the bottom wall. The fifth
As shown in the figure, when the sprayer is inverted, it is provided so that it is watertightly closed by the bottom wall 43 of the cylindrical member.

The lower valve 52 is formed by these.

At this time, since the cylinder consisting of the upper and lower cylinders descends due to its own weight, the upper valve 47 consisting of the valve body part 40 and the outward flange 41 is opened, and the upper end of the father part cylinder 21 is closed to the backing 6.
A certain distance shall be maintained as a liquid inlet between the two.

It will be understood that with the above configuration, two flow paths each having an upper valve and a lower valve can be formed.

The present invention has the above configuration, and in this way, when the sprayer is in the upright state, the upper valve 30° 47 is closed and the lower valves 37, 52 are opened, so that when the sprayer is in the inverted state. Since the lower valve is closed and the upper valve is opened, it is possible to spray without any problem whether the sprayer is in the upright or inverted position, and it is possible to spray from the liquid inside the container when the sprayer is in the upright or inverted position. The flow path to the lower end of the cylinder was formed by fitting the cylinder 20 onto the outer surface of the cylinder, from the lower end of the cylinder to the lower end of the cylinder, and from between the upper end of the cylinder and the outer surface of the cylinder to the lower end of the cylinder. The axes of the cylinder and the cylinder are located on the same imaginary line. Therefore, when the cylinder is removed from the container and inserted again to replenish liquid into the container, it is necessary to look only at the cylinder and perform the operation. If the cylinder collides with another object,
Therefore, there is no possibility of damage.

That is, the forward/reverse switching mechanism of the flow path as in the present invention can be formed by connecting one outlet of a three-way valve to the lower end of the cylinder and fitting a suction pipe to the other two-way inlet. In this case, since the suction pipes are located to the side of the cylinder, they tend to get in the way when the cylinder is attached and detached, and are also prone to breakage when bumped against other objects, but the present invention does not have such drawbacks.

[Brief explanation of drawings]

Figure 1 is a sectional view of the sprayer according to the present invention in an upright position, Figure 2 is a cross-sectional view of its main parts, Figure 3 is the sprayer in an inverted position, and Figure 4 is another embodiment. 5 is a cross-sectional view of the device in an upright state, and FIG. 5 is a cross-sectional view of the device in an inverted state. 1... Container body, 4... Cylinder, 8...
... Spraying member, 10 ... Cap, 20
... Cylinder body, 27 ... Valve body, 46 ...
...Cylindrical member.

Claims (1)

[Claims] 1. A cylinder 4 is vertically disposed inside a liquid storage container body, and a spray head 7 is protruded from the upper end of the cylinder. When the head is pushed down, a discharge valve above a pump chamber formed in the cylinder opens, and the liquid in the chamber is discharged. is sprayed from the head, and when the head is released, the head rises to its original position, at which time the suction valve provided below the pump chamber opens, and the liquid inside the container is sucked into the chamber. In the sprayer, the cylinder 20 is fitted to the outer surface of the cylinder, and a downward flow path is formed from the lower end of the cylinder to the lower end of the cylinder, and an upper flow path is formed between the upper end of the cylinder and the outer wall surface of the cylinder to the lower end of the cylinder. , respectively, a lower valve is provided in the lower flow path, and an upper valve is provided in the upper flow path, and the valve body side or valve seat side of these move due to their own weight, so that when the sprayer is in an upright state, A liquid sprayer for both normal and inverted positions, characterized in that the upper valve is closed and the lower valve is opened, and when the sprayer is in an inverted state, the upper valve is opened and the lower valve is closed.