JPS581320B2 - aerosol injection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Most conventional aerosol spray containers use the vaporization expansion force of liquefied gas as a pressure source.

However, it is well known that the use of sealed liquefied gases such as chlorofluorocarbon gases, for example, chlorofluorocarbon gases, is prohibited and legislation is being enacted in developed countries because they are harmful and destroy the natural environment.

In addition, although most spray containers are thrown away, there have been reports in newspapers of explosions caused by them.

The solution to this problem is to have a pressure source that replaces the liquefied gas, and also to make the spray container reusable.

Specifically, the objective is to obtain a spray container into which compressed air can be injected as a pressure source as needed, and a raw material solvent can be easily replenished.

Another object of the present invention is to provide a filling machine that can easily inject compressed air into this spray container.

In view of the above, an object of the present invention is to obtain an improved aerosol device using a spray container capable of enclosing compressed air and replenishing raw material solvent, and a compressed air filling machine.

Examples will be described below with reference to the drawings.

First, the spray container 10 holds the injection valve 18 through the packing 20 by a cap 22 which is screwed onto the outer periphery of the supply port 14 for the raw material solvent 12 and has a male thread.

The injection valve has a valve housing 26 fixed through a packing 24, and a valve body 30 having a neck 32 is resiliently repelled by a spring 28 so as to come into contact with the packing, thereby opening the valve chamber in the valve housing. It is inserted into 34.

A liquid supply pipe 38 immersed in the raw material solvent 12 is connected to the lower pipe 36 of the valve body 30 .

The raw material solvent 12 passes through the liquid supply pipe and the lower pipe 36 to the valve chamber 34.
The liquid reaches this point, passes through a side hole 40 provided in the cervical canal 32, and is ejected from a nozzle 44 of an injection bed 42 mounted on the cervical canal.

The valve housing 26 is provided with a side hole 46 that guides the compressed air sealed in the spray container 10 to the valve chamber 34, and the sealed air pressure that pressurizes the surface of the raw material solvent 12 and the side hole 46 are connected to the atmosphere. The compressed air is ejected from the nozzle 44 as described above due to the suction action of the released compressed air.

A compressed air supply valve 50 is provided at the bottom 10a of the spray container 10.

The supply valve is a filling valve 92 of a compressed air filling machine 70, which will be described later.
When the head is lifted up against the elastic force of the inner sealing spring, the closing valve 54 opens, and the compressed air is sprayed from the air supply pipe 56 connected to the air supply plug 58. The reservoir 60 in the container 10 is now filled.

In order to prevent the raw solvent 12 in the spray container 10 from leaking when the closing valve 54 opens, the opening end 56a of the air supply pipe 56 preferably extends above the liquid level of the solvent, preferably near the injection valve 18. It is desirable that you are currently present.

On the other hand, the compressed air filling machine 70 has a base 74 of the main body 72.
A compressor 80 is built in and is attached via a cushion member 78 to a support leg 76 fixed to the support leg 76 .

A pressure switch 84 is attached to the discharge chamber 82 of the compressor so that when the aforementioned spray container 10 is filled to a predetermined pressure, the pressure switch is activated to stop driving the compressor. It has become.

The compressed air in the discharge chamber 82 passes through a discharge pipe 88 connected to a discharge nipple 86 and is then delivered to the filling valve 92 of the filling stage 90 of the main body 72.
It is connected to a nipple 94 that leads to.

The filling table 90 is provided with a guide cylinder 96 that accommodates the bottom of the spray container 10 and positions the filling valve with the supply valve 50 of the container, and a valve chamber provided in the center of the guide cylinder. The filling valve 92 is constructed by seating a packing 100 on one end of the filling valve 98 and repelling the valve body 104 with a spring 102 so as to come into contact with the packing.

The aerosol injection device according to the present invention is composed of a spray container as described above and a compressed air filling machine. First, the cap 22 is removed from the former spray container 10, the injection valve 18 is removed, and an appropriate amount of raw material solvent 12 is poured into the former spray container 10. Inject or replenish.

Since a compressed air reservoir 60 is required within the spray container 10, the amount of solvent should be kept within certain limits.
The larger the amount, the smaller the amount of air enclosed and the shorter the injection time.

After injecting the solvent, the injection valve 18 is reassembled with the cap 22 in a sealed state.

The spray container 10 filled with the solvent is fitted into the guide tube 96 of the filling table 90 of the filling machine 70, as shown in the third figure, and is lightly pressed manually.

In this way, the head 52 of the supply valve 50 provided at the bottom 10a of the spray container 10 and the valve body 104 of the filling valve 92 of the filling machine 70 interfere with each other, and the former closing valve 54 is opened while the latter valve is opened. The body 104 also moves away from the packing 100 against the spring 102.

The compressed air generated by the pre-driven compressor 80 is delivered to the discharge chamber 82 , the discharge pipe 88 and the valve chamber 98 of the filling valve 92 .
and the closing valve 5 of the inlet valve 60 of the spray container 10
The spray container 10 is filled from the air supply pipe 50 through the opening 4.

When the pressure in the reservoir 60 reaches a predetermined value, the pressure switch 84 is activated to stop driving the compressor 80.

Stopping compressor 80 is a signal that indicates that air filling into spray container 10 is complete.

When the spray container 10 is separated from the guide tube 96, the closing valve 54 returns to its original position due to the built-in spring and closes the opening, so that the filled air will not leak.

The method of using the spray container 10 filled with the raw material solvent and compressed air in this manner is no different from the conventional spray container filled with liquefied gas.

That is, when the injection head 42 is manually pressurized and the valve body 30 is lowered, the side hole 4 that was blocked by the packing 24 is removed.
0 opens.

In this way, the compressed air in the reservoir 60 passes through the side hole 46, the valve chamber 34, and the side hole 40 of the valve body 18, and then reaches the nozzle 4 of the injection head 42.
On the other hand, the raw material solvent pressurized by the compressed air in the reservoir 60 is sucked up from the liquid supply pipe 38 by the suction action generated by the injection, and both are injected from the nozzle 44.

Depending on the raw material solvent, the side hole 46 may not be provided in the valve chamber 34, and the solvent may be removed by the pressurizing action of compressed air on the solvent surface and the air injection pressure that escapes from the liquid supply pipe 38 into the atmosphere through the solvent. Some also spray.

The amount of compressed air enclosed is smaller than that of liquefied gas.

However, the aerosol device according to the present invention can be filled with compressed air very easily whenever necessary.

Therefore, it can be used for many purposes such as hair spray, paint spray, and chemical spray without using precious gases.

Furthermore, in the case of conventional spray containers, it was impossible to reuse them other than to throw them away once the liquid content or gas enclosed in them ran out.

On the other hand, in the case of the present invention, it is possible to replenish the spray container with solvent, and if the spray container is also used while being replenished with compressed air by a filling machine, it is possible to reuse the container indefinitely.

This is not only economical by eliminating single-use items, but also causes environmental damage and health problems caused by releasing liquefied gas into the atmosphere, as well as explosions and accidents that occur in our daily lives. The social benefits are enormous, such as being able to prevent such problems from occurring.

In the case of a normal spray container, the internal capacity is about 300cc.

Since about half of the amount is usually liquid, the amount of compressed air enclosed is extremely small.

In other words, air can be filled in about 2 to 30 seconds.

Therefore, insert the bottom of the spray container into the guide cylinder of the filling table for 2 to 3 minutes.
Since it is enough to push the tube in for 30 seconds and maintain that state, the filling operation can be carried out extremely easily when you have a spare moment.

[Brief explanation of drawings]

The drawings show embodiments, and FIG. 1 is a cross-sectional view of a spray container according to the apparatus of the present invention, FIG. 2 is a cross-sectional view of a filling machine, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which the illustrated filling machine is filled with compressed air. 10...Spray container, 18...Injection valve, 50...Feeding valve, 70...Filling machine, 92...Filling valve .

Claims (1)

[Claims] 1 comprises a spray container 10 and a filling machine 70, the spray container has an injection valve 18 which is detachably held in a replenishment port by a cap, and a compressed air supply valve 50 in the center of the bottom, The machine has a guide tube 96 for receiving the lower part of the spray container 10 in the filling table 90 and a filling valve 92 corresponding to the inlet valve 50, and the bottom part of the spray container 10 is placed in the guide tube. When received and pressed, the filling valve and the supply valve 50 interfere with each other to open a flow path, and the compressor 80 in the filling machine 70 having a pressure switch in the discharge chamber An aerosol injection device characterized in that the spray container 10 can be filled with compressed air.