JP2787183B2 - Injection head structure having an injection nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection head structure having an injection nozzle, and more particularly to a push button type injection head structure having an injection nozzle of an aerosol injection device.

[0002]

2. Description of the Related Art In a conventional aerosol injection device, an aerosol container has been filled with an injection fluid and a pressurized gas for injection such as propane together with an injection fluid and used for aerosol injection. However, the injection pressurized gas such as propane is a flammable gas, and is not necessarily an appropriate injection pressurized gas. In addition, a pressurized injection gas that is not a flammable gas has become necessary. Therefore, the pressurized gas for injection such as propane used in the conventional aerosol injection device is a flammable gas and has been housed in the aerosol container in a state of the pressurized gas. Then, the pressurized gas in the aerosol container keeps decreasing in pressure in the process from the state of the pressurized gas to the state of the external atmospheric pressure. It was a system in which the state was inflated rapidly from the state of pressurized gas to become a spray state. However, recently, unlike flammable gas such as propane, which has been conventionally used in aerosol injection devices, it is less likely to be mixed into the contents of aerosol containers such as carbon dioxide gas and nitrogen gas. However, in this case, if a gas such as carbon dioxide gas or nitrogen gas is sealed in the aerosol container, the content liquid in the aerosol container is less likely to be mixed in the aerosol container. It will be injected. Therefore, conventionally, it has become possible to discharge substantially all of the content liquid that tends to remain in the aerosol container to the outside.

[0003]

Therefore, instead of the pressurized gas for injection such as propane used in an aerosol injection device or the like, it is mixed with a liquid content in an aerosol container such as carbon dioxide gas or nitrogen gas. It is necessary to have a function of rapidly expanding the state of the pressurized gas from the state of the pressurized gas to the spray state at the injection port of the aerosol injection device by using the gas which is less likely to be generated. Therefore, a gas such as carbon dioxide gas or nitrogen gas is a gas that hardly mixes with the content liquid, and can be operated until the content liquid is almost jetted. Further, a first object of the present invention is to provide a jet type fluid transfer piston type pump mechanism in a flow path communicating with an injection nozzle of an aerosol injection device so that an ejected fluid can be in a spray state. And
In addition, the present invention operates the pressure of the ejected fluid to the piston in the space in the injection head, causes the piston to hang down against the compression coil spring, and communicates with the horizontal flow path. It is a second object of the present invention to provide a flow path that is communicated with a flow path, and that a resistance member can be interposed in the flow path to easily limit the amount of jet. According to the present invention, the piston provided in the piston type pump mechanism reciprocates frequently, receiving the ejection pressure of the ejection fluid from the valve stem up to the ejection nozzle of the aerosol ejection device, to reliably eject the ejection fluid. A third object of the present invention is to make it possible to cause the jet to be ejected. Further, according to the present invention, the operation of the piston can be repeatedly repeated, and the jet fluid can be jetted from the jet nozzle at each repetition, and the piston frequently receives the jet pressure of the jet fluid from the valve stem. A fourth object of the present invention is to reciprocate and make the ejected fluid into a spray state. In addition, the reciprocating motion of the present invention can be repeated, repeatedly, actuated, is a spray head structure having a spray nozzle to spray fluid from the spray nozzle,
By operating the injection fluid transfer piston type pump mechanism for the ejection fluid ejected from the ejection nozzle of the aerosol ejection device, the ejection fluid is surely brought into a spray state, and the ejection fluid is ejected from the ejection nozzle. This is a fifth object of the present invention to be obtained.

[0004]

The present invention relates to an injection head structure comprising an injection head 8, a short cylinder portion 9, and a piston type pump mechanism 1, wherein a lower end portion of a concave portion opened below the injection head 8.
Has a flow path for the injection fluid of the piston type pump mechanism 1.
That the base of the guiding cylindrical member 4 are screwed, said the upper cylindrical portion of the guide cylindrical member 4 is fitted the piston 2 of the piston pump mechanism 1, and the piston 2
A compression coil spring between the guide tubular member 4 and the base thereof;
3 is mounted, and a concave portion opened below the jet head 8
A horizontal flow path 5 is provided above, and an injection nozzle and a flow path 10 to the injection nozzle are formed in the short cylindrical portion 9. The horizontal flow path 5 of the injection head 8 is provided at an open end of the horizontal flow path 5. So that the horizontal flow path 5 and the flow path 10 are in communication with each other.
The short tubular portion 9 is provided , a resistance member is interposed in the flow path 10, a small gap is formed around the resistance member, and the base of the guide tubular member 4 can be fitted into the valve stem 6.
And the pressure of the injection fluid from the flow path of the valve stem 6.
The piston 2 of the piston type pump mechanism 1 is lowered by force.
When descending, the jet fluid flow path and the horizontal flow path 5
Is an injection head structure having the injection nozzle so as to be in communication.

[0005]

The present invention relates to an injection head structure comprising an injection head 8, a short cylinder portion 9, and a piston type pump mechanism 1, wherein a lower end of a concave portion of the injection head 8 opened downward has a piston type pump.
The base of a cylindrical member 4 for guiding having a flow path for an ejection fluid of the pump mechanism 1 is screwed, and a piston 2 of the piston type pump mechanism 1 is fitted to an upper cylindrical portion of the cylindrical member 4 for guiding. The piston 2 and the guide tubular member 4 are fitted.
Compression coil spring 3 is mounted between the base and
A horizontal flow path 5 is formed above the concave portion opened below the jet head 8.
An injection nozzle and a flow path 10 to the injection nozzle are formed in the short cylinder portion 9. The horizontal flow path 5 and the flow path 5 are formed at the opening end of the horizontal flow path 5 of the injection head 8. Channel 1
0 and is provided with the short cylindrical portion 9 so that the communicated state, by interposing a resistance member to the flow path 10, the periphery of the resistance member to a slight gap, the base portion of the guide cylindrical member 4 Ba
Lube stem 6 so that the valve
The pressure of the injection fluid from the flow path of the
The injection flow when the piston 2 of the pump mechanism 1 is lowered.
Since the body flow path and the horizontal flow path 5 can communicate with each other, the injection head structure having the injection nozzle described above, an appropriate amount of the injection fluid is discharged from the injection nozzle using a small gap. Can be spouted. The ejection head structure having the ejection nozzle of the present invention is capable of reliably ejecting the ejected fluid by operating the ejection fluid transfer piston pump mechanism for the ejection fluid ejected from the ejection nozzle of the aerosol ejection device. The ejection fluid can be ejected from the ejection nozzle in a spray state. Further, in the ejection head structure having the ejection nozzle of the present invention, the ejection head 8 is provided with the ejection fluid flow path 5, and the ejection nozzle is provided at the opening end of the ejection fluid flow path 5, A piston type pump mechanism is built in a position in the middle of the injection fluid flow path 5, and the piston 2 provided in the piston type pump mechanism is urged by the compression elastic spring 3 so as to move upward. The injection fluid in the injection container flows into the space of the piston 2 in a pressurized state, and the upper surface of the piston 2 is pushed down by the injection fluid accommodated in the space above the piston 2 in a pressurized state. When the lowered piston 2 resists the compression elastic spring 3 urged upward, lowers the spring 3 and accumulates the energy in the spring 3, then the accumulated energy is accumulated. With the spring force of the spring 3, the piston 2 Descending will be moved in the upward direction is a direction opposite, to be able to repeat repeating its operation, it is possible to eject injection fluid each time the repetition from the injection nozzle. Then, upon receiving the ejection pressure of the ejection fluid from the valve stem 6, the piston 2 reciprocates frequently, and the ejection fluid can be sprayed and ejected. Further, in the ejection head structure having the ejection nozzle of the present invention, the ejection head 8 is provided with the ejection fluid channel 5, the ejection nozzle is provided at the open end of the ejection fluid channel 5, An injection fluid transfer piston type pump mechanism is built in a position in the middle of the injection fluid flow path 5, and the piston 2 of the pump mechanism is lowered by the pressure of the injection fluid from the valve stem, and the piston 2 is connected to the injection nozzle. A jet fluid is ejected from the ejection nozzle in communication with the flow path 5 and receives the ejection pressure of the ejection fluid from the valve stem up to the ejection nozzle of the aerosol ejection device. Reciprocates frequently to ensure that the ejected fluid is in a spray state and ejected.

[0006]

[Embodiment 1] The present invention relates to an injection head structure comprising an injection head 8, a short cylinder portion 9, and a piston type pump mechanism 1, wherein a lower end of a recess opened downwardly of the injection head 8 has a piston. formula
A base portion of a guide tubular member 4 having an injection fluid flow path of the pump mechanism 1 is screwed, and a piston 2 of the piston type pump mechanism 1 is fitted to an upper end tubular portion of the guide tubular member 4.
The piston 2 and the guide cylindrical portion are fitted.
The compression coil spring 3 is mounted between the base of the material 4 and
And a horizontal flow path above the recess opened below the injection head 8.
An injection nozzle and a flow path 10 extending to the injection nozzle are formed in the short cylindrical portion 9, and the horizontal flow path 5 is provided at the opening end of the horizontal flow path 5 of the injection head 8. And the short tube portion 9 is provided so that
A resistance member is interposed in the flow path 10 to make a small gap around the resistance member, and a base portion of the guide tubular member 4 is formed.
Can be fitted into the valve stem 6, and the valve
The piston type is operated by the pressure of the injection fluid from the flow path of the stem 6.
When the piston 2 of the pump mechanism 1 descends,
So that the flow path for ejected fluid and the horizontal flow path 5 can communicate with each other.
A jetting head structure having an injection nozzle, by interposing a compression coil spring 3 between the piston 2 and the base of the guiding cylindrical member 4, the piston 2 is uppermost and its position An injection head structure having the injection nozzle at a position close to the piston 2 that blocks an inflow path and forms an injection fluid inflow path while the cutoff is performed.
The injection fluid from the valve stem 6 flows into a space formed at the upper part of the pump mechanism, and the pressure of the injection fluid from the valve stem 6 causes the piston 2 of the pump mechanism to descend. And the reciprocating motion of the piston 2 in the vertical direction is repeated by the interaction between the compression coil spring 3 and the piston 2 of the pump mechanism, and the fluid is discharged from the injection nozzle. It is an ejection head structure having an ejection nozzle that can eject.

[0007]

[Embodiment 2] In the present invention, first, an injection fluid flows into an upper space portion of a piston 2, and when the piston 2 is lowered while pressing a compression coil spring 3, an injection nozzle and the The fluid in the upper space portion of the piston 2 is communicated with the upper space portion of the piston 2, and the ejected fluid in the upper space portion of the piston 2 is ejected to the outside through the ejection nozzle. Piston 2
Is raised by a compression coil spring 3, the injection nozzle is closed by the piston 2, the injection fluid flows into an upper space portion of the piston 2, and the compression coil spring 3 in which the piston 2 is completely extended. And a piston-type pump operable to repeat the ejection from the injection nozzle by communicating with the injection nozzle and the upper space portion of the piston 2 at a position where the piston 2 is lowered. This operation is repeated by the mechanism 1, and the piston 2 moves upward so as to reduce the upper space portion of the piston 2 after the injection from the injection nozzle by the operation of the piston type pump mechanism 1, so that the next The piston 2 can be lowered, and then the piston 2 is urged upward by the compression coil spring 3 in the vertical direction. The compression type coil spring 3 interposed between the piston 2 and the base of the guide tubular member 4 is operated by enabling repetitive movement, and the piston 2 is moved to an uppermost position and a position near the uppermost position. The injection nozzle and the injection fluid inflow passage leading to the injection nozzle are shut off, and while the injection nozzle is shut off, a space formed above the piston 2 serving as the injection fluid inflow passage is supplied from the valve stem 6 to the space. The injection fluid flows in, the piston 2 of the pump mechanism descends by the pressure of the injection fluid from the valve stem 6, and communicates with the injection fluid inflow passage leading to the injection nozzle near the lowermost position, and The fluid can be ejected from the ejection nozzle by repeatedly repeating the vertical reciprocation of the piston 2 by the interaction between the coil spring 3 and the piston 2 of the pump mechanism. A repeating ejection process due to the injection head structure having an injection nozzle which is the feature.

[0008]

According to the present invention, there is provided an injection head structure comprising an injection head 8, a short cylinder portion 9, and a piston type pump mechanism 1, wherein a lower end of a concave portion opened downward of the injection head 8 has a piston type pump.
The base of a cylindrical member 4 for guiding having a flow path for an ejection fluid of the pump mechanism 1 is screwed, and a piston 2 of the piston type pump mechanism 1 is fitted to an upper cylindrical portion of the cylindrical member 4 for guiding. The piston 2 and the guide tubular member 4 are fitted.
Compression coil spring 3 is mounted between the base and
A horizontal flow path 5 is formed above the concave portion opened below the jet head 8.
An injection nozzle and a flow path 10 to the injection nozzle are formed in the short cylinder portion 9. The horizontal flow path 5 and the flow path 5 are formed at the opening end of the horizontal flow path 5 of the injection head 8. Channel 1
0 and is provided with the short cylindrical portion 9 so that the communicated state, by interposing a resistance member to the flow path 10, the periphery of the resistance member to a slight gap, the base portion of the guide cylindrical member 4 Ba
Lube stem 6 so that the valve
The pressure of the injection fluid from the flow path of the
The injection flow when the piston 2 of the pump mechanism 1 is lowered.
Since the body flow path and the horizontal flow path 5 can communicate with each other, the injection head structure having the injection nozzles described above, the injection fluid flows at a very small flow rate through the narrow flow path, and the injection fluid flows. There is an effect that it can be ejected from the ejection nozzle. The present invention
By operating the injection fluid transfer piston type pump mechanism for the ejection fluid ejected from the ejection nozzle of the aerosol ejection device, the ejected fluid is surely in a spray state,
There is an effect that the ejection fluid can be ejected from the ejection nozzle. Further, the ejection head structure having the ejection nozzle portion of the present invention is provided with an ejection fluid flow path in the ejection head, the ejection nozzle is provided at an open end of the ejection fluid flow path, and the ejection nozzle is provided up to the ejection nozzle. The piston type pump mechanism 1 is built in an intermediate position of the injection fluid flow path, and the piston 2 provided in the piston type pump mechanism 1 is urged by the compression coil spring material 3 so as to move upward. The jet fluid in the jet container flows into the upper space in a pressurized state, and the jet fluid contained in the upper space of the piston 2 in a pressurized state pushes down the upper surface of the piston 2, whereupon When the lowered piston 2 resists the upwardly urged compression coil spring material 3 to lower the spring material 3 and accumulate energy in the spring material 3, With the spring force of the stored spring material 3, Serial piston 2 will be moved in the upward direction which is opposite to the direction of the lowering direction, and can be repeated iteratively its operation, there is an effect that it is possible to eject the fluid jet from the injection nozzle each time the repetition. Then, the piston 2 frequently reciprocates in response to the ejection pressure of the ejection fluid from the valve stem, so that the ejection fluid can be sprayed and ejected. The ejection head structure having an ejection nozzle according to the present invention is provided with an ejection fluid flow path in the ejection head 8, and provided with the ejection nozzle at an opening end of the ejection fluid flow path, A piston type pump mechanism 1 for transferring an injection fluid is built in an intermediate position of the flow path for the injection fluid until the injection nozzle moves down by the internal pressure of the injection fluid from the valve stem 6 and the injection nozzle Since the ejection fluid is ejected from the ejection nozzle in communication with the ejection fluid inflow path communicating with the ejection fluid, the ejection pressure of the ejection fluid from the valve stem 6 is received to the ejection nozzle of the aerosol ejection device, and the piston is ejected. 2 reciprocates frequently, and has the effect that the ejected fluid can be reliably sprayed and ejected.

[Brief description of the drawings]

FIG. 1 shows an injection head structure having an injection nozzle according to the present invention.
It is a longitudinal section in the state where the elastic spring which supports the piston of the piston type pump mechanism built-in space which communicates with the flow path to the injection nozzle of the embodiment is extended.

FIG. 2 is a perspective view of an injection head structure having an injection nozzle according to an embodiment of the present invention shown in FIG. 1; It is a longitudinal cross-sectional view of the state which carried out.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Piston type pump mechanism 2 Piston of a piston type pump 3 Compression type elastic spring 4 Piston guide cylindrical member 5 Horizontal flow path 6 Valve stem 7 Fixing screw 8 Injection head 9 Short cylinder part having an injection nozzle 10 Up to an injection nozzle Flow path

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-164474 (JP, A) JP-A-50-78909 (JP, A) JP-A-51-561414 (JP, A) 2209 (JP, U) JP-B 63-6263 (JP, B2)

Claims (1)

(57) [Claims] 1. An injection head structure comprising an injection head 8, a short cylinder portion 9, and a piston pump structure 1.
The lower end of the recess that opens downward has a piston pump mechanism
The base of the guide tubular member 4 having one jet fluid passage is screwed into the guide tubular member 4, and the piston 2 of the piston type pump mechanism 1 is fitted into the upper tubular portion of the guide tubular member 4. And the base of the piston 2 and the guide tubular member 4
The compression coil spring 3 is mounted between the
The horizontal flow path 5 is provided above the concave portion opened below the launch head 8,
An injection nozzle and a flow path 10 to the injection nozzle are formed in the short cylinder portion 9. The horizontal flow path 5 and the flow path are formed at the opening end of the horizontal flow path 5 of the injection head 8. The short tube portion 9 is provided so as to communicate with
0, a small gap is formed around the resistance member, and the base of the guide tubular member 4 is connected to a valve valve.
The valve stem 6 so that it can be fitted into the stem 6.
The piston type pump mechanism is operated by the pressure of the injection fluid from the flow path.
1 when the piston 2 is lowered.
An injection head structure having the injection nozzle configured to allow a passage to communicate with the horizontal flow path 5 .