JPS5823412Y2 - Upright and inverted sprayer - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a sprayer that can be used both vertically and invertedly.

Many types of manual sprayers have been known in the past, but in the present sprayer, a cylinder is vertically placed inside the container body using an appropriate connector, and when the spray head at the upper end of the outflow pipe protruding from the cylinder is pushed down, the outflow pipe is opened. An annular piston formed on the outer periphery of the lower end descends inside the cylinder, and the liquid in the cylinder opens the discharge valve in the middle of the flow path and is sprayed from the nozzle hole of the spray head, and when the spray head is released, the attached spring is energized. The annular piston is pushed up together with the outflow pipe to create a negative pressure inside the cylinder, and at this time the suction valve at the lower end of the cylinder opens and the liquid inside the container is sucked in.

Conventionally, such atomizers are intended to be used in an upright position, so when the atomizer is inverted, the tip of the suction pipe for sucking up liquid from inside the container is exposed to the air inside the container, causing a build-up. It could not be sprayed on.

Various structures can be considered to improve this so that it can be used even in an inverted state, and the present invention is one of them, and will be described below with reference to the drawings.

1 is a container body, 2 is a cylinder having a suction valve 3 inside its lower end, and an outward flange 4 attached to its upper end is attached to a backing 5.
It is placed into the internal liquid of the container via the container.

An outflow pipe 6 projects from the inside of the cylinder, and a spray head 7 is fitted onto the upper end of the outflow pipe 6.

Numeral 8 is a connector that screws the peripheral wall 9 into the liquid inside the container, and connects the top wall 1
An outward flange and a backing are sandwiched between the container 0 and the liquid within the container.

The top wall has an inward flange shape with an upright cylindrical portion 11 protruding from its inner periphery, and an inward flange 12 at its upper end engages a protrusion 13 on the outer periphery of the lower end of the spray head peripheral wall.

Although not shown, an annular piston is formed on the outer periphery of the lower end of the outflow pipe, and the annular piston is biased upward by a coil spring provided between it and a seat formed on the inner surface of the lower part of the cylinder.

Note that these parts not shown in the drawings are the same as those known in the art.

A short cylindrical portion 3C having a cylindrical hole 3b communicating with the valve hole 3a of the suction valve 3 is provided vertically from the lower end of the cylinder.

The short cylindrical portion is formed to have a smaller outer diameter than the cylinder outer diameter.

The outer cylinder 14 is fitted into the cylinder 2.

A vertical groove or longitudinal protrusion 15 is provided on the inner surface of the outer cylinder or the outer surface of the cylinder.
are formed to form a flow path 16 therebetween.

Further, several connecting pieces 17 are protruded from the lower inner wall, and a cylindrical part 18 is suspended at the tip thereof to enable the short cylindrical part to fit into the water bottle.

An inward flange 19 is formed to protrude from the lower end of the cylinder, and a third valve seat 20 is formed at the upper peripheral edge of the inner end.

The lower end of the outer cylinder is preferably formed by a separate member 14a as shown in the figure.

From the lower inner wall of the outer cylinder 14, a partition wall 22 having a valve hole 21 in the center projects upwardly and inwardly in a tapered shape, and the upper and lower peripheral edges of the valve hole are used as a second valve seat 23 and a first valve seat 24, respectively. A valve chamber 25 is formed below the first valve seat.

Further, the upper end of the suction pipe 26 is fitted into the lower end of the outer cylinder.

In addition, when the sprayer is in the upright state, the outer surfaces of both the second and third valve seats 23 and 20 are in watertight contact with each other, and in this state, the chamber below the first valve seat and the valve hole 3a of the suction valve are connected through the cylindrical hole 3b. It has a communicating through hole 27 and has a higher specific gravity than the spraying liquid.
For example, the valve body 28 made of a material such as ceramic, styrene steel, or glass falls into the valve hole 3a side of the suction valve in an inverted spray state and is removably fitted into both valve seats.

Further, a ball valve 29 is fitted into the valve chamber 25 so as to be able to close and contact the first valve seat 24 when the atomizer is inverted.

Note that 30 is a protrusion for preventing the ball valve from falling.

In the above configuration, when the sprayer is in an upright state, the liquid inside the container is sucked up through the suction pipe 26, the valve chamber 25, the through hole 27, and the valve hole 3a of the suction valve, and the outer cylinder between the second and third valve seats The flow path 16 that communicates between the inner space 31 and the outside of the upper end of the outer cylinder is blocked from communicating with the inside of the cylinder because the outer surface of the valve body 28 is in airtight contact with the second and third valve seats. Even if the pressure becomes negative, the air inside the container will not be sucked in.

Next, when the sprayer is turned upside down as shown in Fig. 2, the valve body 28 falls and the second and third valve seats are opened, and the first valve seat 24 is also closed by the ball valve 29, so that the inside of the cylinder is By creating a negative pressure, the flow path 16,
Space 31. The liquid is sucked into the cylinder through the through hole 27.

Note that when the spray head is pushed up (pressed down in an upright position), the suction valve is closed by the pressurization.

Since the present invention has the above-mentioned configuration, it can be sprayed regardless of whether the cylinder is inverted, and since the outer cylinder 14 is fitted to the cylinder and a structure for sucking liquid during inverted operation is formed between the cylinder and the inside of the outer cylinder, liquid can be replenished. There are no protrusions that would get in the way when the cylinder is removed from the container body or installed, and therefore replenishment can be easily and quickly performed.

Since the flow path for sucking liquid when inverted is formed between the inner surface of the outer cylinder and the outer surface of the cylinder, it can be easily formed by adding a groove or a protrusion to either one of them, and by providing a second and third valve seat. A valve body 28 is provided which has a through hole 27 whose outer surface is in airtight contact with both valve seats when the valve is upright, and which communicates the valve chamber 25 and the cylindrical hole 3b in this state, and when the valve body is inverted, the valve body falls down and Since the first valve seat 24 is provided so as to be detached from the valve seat, and since the first valve seat 24 is provided so that the ball valve 29 is closed at this time, switching of the liquid suction flow path is reliable and quick.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the sprayer of the present invention, and FIG. 2 is a longitudinal sectional view of the sprayer in an inverted state. 1...Container body, 2...Cylinder, 3.
...Suction valve, 14...Outer cylinder, 16...
...Flow path, 18...Cylinder part, 20...
・Third valve seat, 23...Second valve seat, 24...
...First valve seat, 28...Valve body, 29...
・Gyokuben.

Claims (1)

[Scope of utility model registration request] It has a cylinder 2 which is vertically installed inside the container body by an appropriate connector 8 and has a suction valve 3 formed inside its lower end, and presses a spray head 7 fitted into an upper end of an outflow pipe 6 protruding from the cylinder. When lowered, the annular piston formed on the outer periphery of the lower end of the outflow tube moves down inside the cylinder, and the liquid in the cylinder passes through the hole in the outflow tube and is sprayed from the nozzle hole of the spray head.When the spray head is released, the installed spring When the annular piston is pushed up by the force of Cylindrical hole 3 communicating with valve hole 3a
A short cylindrical portion 3C having a diameter b is vertically disposed, and an inward flange 1 is suspended on the outer surface of the cylinder by a connecting piece 17 protruding from the lower inner wall and protruding from the lower end.
9 is formed with a third valve seat 20 at the upper circumferential edge of the inner end thereof, and has a valve hole 21 centered from its lower inner wall, and both upper and lower circumferential edges thereof are a second valve seat 23, a first valve seat 23, 24 and a suction pipe 26 protrudes from the partition wall 22 to the lower end.
The outer cylinder 14 with its upper end fitted is fitted by forming a flow path 16 that opens at the upper end of the outer cylinder between the outer cylinder wall surface and the short cylinder part 3C and the cylinder part 18 in a watertight manner. When the atomizer is in the upright position, both the second and third valve seats 23.2
A valve having a specific gravity greater than that of the spraying liquid and having a through hole 27 whose outer surfaces are in airtight contact with the outer surface of the valve and which communicates the valve chamber below the first valve seat with the valve hole 3a of the suction valve through the cylindrical hole 3b. When the sprayer is inverted, the body 28 falls under its own weight and is fitted to be detachable from both valve seats, and a ball valve 29 is fitted into the valve chamber below the first valve seat so that the valve seats can be closed only when the sprayer is inverted. A sprayer for both vertical and inverted positions.