JPS6156027B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sprayer that manually maintains a pressurized state in a liquid storage chamber depending on the amount of residual liquid in the chamber and opens a spout valve when spraying.

Conventional aerosol sprayers spray by injecting a liquid that easily evaporates into the liquid storage chamber separately from the spray liquid, and then keeping the liquid storage chamber under high pressure at all times and opening the release valve. It was hot. Therefore, it is necessary to inject high-pressure gas or the like into the liquid storage chamber, and the liquid storage chamber must be constructed in an airtight manner to prevent gas leakage. Furthermore, discarded aerosol sprayers are
There was a risk of explosion due to the remaining pressurized gas during incineration.

In addition, pressurized sprayers that use a piston have a complicated structure, and each time they spray, the piston must be pressurized, which makes them difficult to operate.

The present invention solves these drawbacks and has a simple structure.
Moreover, it is an object of the present invention to provide a sprayer that is easy to spray.

Hereinafter, the sprayer of the present invention will be explained with reference to the drawings.
A storage chamber 1 containing a liquid A to be sprayed and a pressurizing gas B is formed in a cylinder 2 that is closed at the top and open at the bottom. A liquid conduit 3 is provided passing through the center of the upper closing wall 2 a of the cylinder 2 , and the projecting upper end of the liquid conduit 3 communicates with a spout valve 4 .
The spout valve 4 is connected via an operating rod 5 to a spray head 7 provided with a nozzle 6 . The operating rod is provided with a passage that communicates the outlet side opening of the jet valve 4 with the nozzle 6, and when the spray head 7 is pushed down against a spring that biases the jet valve 4 in the closing direction, the jet valve 4 closes. The liquid conduit 3 and nozzle 6 are opened to communicate with each other. Further, a cap 8 that covers the spray head 7 is detachably provided on the top of the cylinder 2.

A piston member 9 is slidably inserted into the cylinder 2, and a tubular member 10 having the same hole diameter as the hole provided in the center of the piston member 9 is inserted into the piston member 9.
It is formed to protrude outward. Piston member 9
Two annular gaskets 11 are provided on a surface in contact with the inner circumferential surface of the cylinder 2 to maintain airtightness within the storage chamber 1. The lower end of the tubular member 10 is closed to form a locking portion 10a consisting of a small diameter cylindrical portion and a large diameter cylindrical portion below.

A cylindrical push-up member 12 is fitted onto the outer periphery of the tubular member 10, and a locking portion 10a is provided at the lower inner periphery of the push-up member 12.
An annular protrusion 12a is provided which rotatably fits into the ring. Further, the upper end of the push-up member 12 is connected to the piston member 9
When the push-up member 12 is rotated to raise itself as described later, the piston member 9 is pushed upward in the axial direction. Push-up member 1
A holding member 15 having a thread 13 formed on the outer circumferential wall of No. 2 and an inner circumferential thread 14 into which the thread 13 is screwed.
is screwed to the lower part of the cylinder 2. Since the holding member 15 having the inner circumferential thread 14 is fixed to the lower part of the cylinder 2, the piston member 9
The push-up member 12
If you rotate the piston member 9 along with itself
It will also increase the Note that the tubular member 10 and the piston member 9 do not rotate together even when the push-up member 12 rotates.

The sprayer of the present invention has the above configuration, and when spraying, the push-up member 12 is rotated in advance to push the piston member 9 into the cylinder 2 and pressurize the inside of the storage chamber 1. After that, if the spray head 7 is pushed down and the spout valve 4 is opened, the liquid conduit 3 will flow from the storage chamber 1.
Liquid is sprayed from a nozzle 6 via a spout valve 4 . In this case, the air in the storage chamber 1 is in a compressed state and has a high pressure, but the pressure gradually changes to a low pressure, but spraying is possible for quite a long time, and if you stop pressing down on the spray head, the jet valve 4 will open. It closes due to spring force and spraying is stopped.

Further, when the pressure inside the storage chamber 1 becomes low, by rotating the push-up member again to pressurize the air inside the storage chamber 1, spraying can be performed again. Note that even if the push-up member is pushed into the cylinder 2, the liquid conduit 3
is inserted into the tubular member 10 of the piston member 9,
There is no problem in pushing it in. Also, air was injected into containment chamber 1 to pressurize the liquid.
Other gases can also be used for pressurization.

As described above, in the sprayer of the present invention, the push-up member 12
The piston member 9 is pushed into the cylinder 2 by simply rotating the cylinder 2 to pressurize the liquid storage chamber, so the configuration is simple and there is no need to push down the piston every time you spray like in a pressurized sprayer. do not have.

In addition, unlike an aerosol sprayer, there is no need to inject high-pressure gas into the liquid storage chamber, and there is no risk of explosion when incinerated after disposal.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view of the sprayer of the present invention. 1...Accommodation chamber, 2...Cylinder, 4...Ejection valve, 7...
Spray head, 9... piston member, 10... tubular member, 12... push-up member.

Claims (1)

[Claims] 1. A sprayer that sprays a liquid by opening a spray valve by pressing down on a spray head, which includes a cylinder containing liquid and gas inside, a piston member that can slide airtightly within the cylinder, and a piston member that A tubular member connected to a central hole and protruding outward from the cylinder; a push-up member fitted onto the outer periphery of the tubular member and having a thread formed on the outer peripheral wall for pushing up a piston member; A sprayer consisting of a holding member that has threads that engage with each other and is attached to the lower end of the cylinder, and a liquid conduit that communicates with a jet valve at one end and extends to the lower part of the cylinder and can be inserted into the inside of the tubular member. .