JPH06263178A - Structure of ejection head equipped with ejection nozzle - Google Patents

Abstract

PURPOSE:To make spraying of an ejection fluid in an atomized state possible by a method wherein a short cylindrical part having an ejection port is fitted into a part on the opening end of an ejection fluid passage, and a spherical body is housed in a space provided to the short cylindrical part so that the spherical body can move (oscillate) freely. CONSTITUTION:In an ejection head structure with a short cylindrical part 9 having an ejection port 13 provided at its one side, the short cylindrical part 9 is fitted into a cylindrical cavity 16 in small diameter provided to one side of the ejection head structure and is fixed with a tapered holding part provided to its front. A space 10 in circular shape section is formed inside the short cylindrical part 9, and a spherical body 6 is housed therein so that it can move (oscillate) freely. Then, the spherical body 6 is moved forward and rearward by the supply of ejection fluid and is brought into contact alternately with a receiving seat on the ejection port side and a receiving seat provided to the end face of a horizontal passage 5 of an ejection fluid passage 2, making the ejection port 13 and the ejection fluid passage 2 open and close alternately. Thereby, the ejection fluid is ejected under the state of oscillation, and spraying in satisfactory atomized state can be made.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art In a conventional aerosol injection device, an injection fluid and an injection pressurized gas such as propane are filled in an aerosol container and used for aerosol injection. However, the injected pressurized gas such as propane is a combustible gas and is not necessarily an appropriate injected pressurized gas.

[0003]

Therefore, the injected pressurized gas such as propane used in the conventional aerosol injection device is a combustible gas, and is stored in the aerosol container in a pressurized gas state. . The pressurized gas in the aerosol container continues to decrease in pressure in the process from the state of the pressurized gas in the aerosol container to the state of the external atmospheric pressure, especially at the injection port. It was a method of rapidly expanding from the state of the pressurized gas until then to the atomized state. However, recently, it has been considered to use a gas such as carbon dioxide gas or nitrogen gas that is less likely to be mixed in the content liquid in the aerosol container, instead of the injection pressurized gas such as propane that has been conventionally used in the aerosol injection device. Has been. Therefore, it is necessary to make the injection port of the aerosol injection device have a structure capable of rapidly expanding from the state of the pressurized gas to the atomized state. SUMMARY OF THE INVENTION It is an object of the present invention to cause a jetted fluid to be in a spray state by vibrating a vibrating member, such as a sphere, in a space formed at an injection port of an aerosol injecting device. .

[0004]

According to the present invention, a jet fluid flow channel is provided in a jet head, and a short tubular portion is fitted in a recess provided at an opening end of the jet fluid flow channel. An injection port is provided in the short tubular portion, a sphere is inserted into the space inside the short tubular portion, and the sphere itself is movable, and the outer surface portion of the sphere and the inner peripheral surface portion of the short tubular portion are It is an ejection head structure having an ejection nozzle portion formed by forming a narrow passage for an ejection fluid therebetween.

[0005]

In the jet head structure having the jet nozzle portion of the present invention, the jet head is provided with the jet fluid passage, and the short tubular portion is fitted in the recess provided at the opening end of the jet fluid passage. Wearing, the injection nozzle is provided in the short cylinder part, the sphere is inserted into the space inside the short cylinder part so that the sphere itself can move, and the outer surface part of the sphere and the inside of the short cylinder part Since a narrow flow path for jetting fluid is formed between the peripheral surface portions, by vibrating a vibration member such as a sphere to a slight extent in the space formed at the injection port of the aerosol jetting device. The jetted fluid can be brought into a spray state. Further, in the jet head structure having the jet nozzle portion of the present invention, the sphere of the space portion inside the short tubular portion may not necessarily be a true sphere,
It suffices that the sphere can vibrate under the pressure of the ejected fluid, and further, the sphere can move to the front and rear position of the space inside the short tubular part that accommodates the sphere, and move back and forth in the space. By providing the receiving seats for supporting the spherical body, the space between the receiving seats is made to allow the spherical body to vibrate under the pressure of the ejected fluid and vibrate, thereby making the ejected fluid into the atomized state. it can. Further, the sphere is made of steel balls, but it does not have to be made of steel balls, may be a hard sphere made of a ceramic sphere, and may be used as a soft sphere such as rubber or synthetic resin. If the sphere is a sphere that can vibrate under the pressure of the jet fluid in the space between the seats, the function of the jet head structure having the jet nozzle portion of the present invention can be achieved. In this way, since a narrow jet fluid flow path is formed between the spherical outer surface portion and the inner peripheral surface portion of the short tubular portion, in the space portion formed at the injection port of the aerosol injection device, By vibrating a vibrating member such as a sphere, although slightly, the ejected fluid can be reliably brought into a spray state.

[0006]

First Embodiment In the present invention, a jet fluid flow channel is provided in a jet head, and a short tube portion is fitted in a recessed portion of an opening end of the jet fluid flow channel, and a central portion of the short tube portion is fitted. An injection port is provided on the inside of the injection port, and both the front surface portion and the rear surface portion of the space inside the short tubular portion are practically spherical, and the inside of the spherical internal space is before and after that. It is a jet head structure having a jet nozzle portion formed by inserting a sphere so that it can move a little.

[0007]

Second Embodiment In the present invention, a jet fluid flow passage comprising an L-shaped communication flow passage having a vertical flow passage and a horizontal flow passage is provided in the jet head, and the opening end of the jet fluid flow passage is formed. A short tube portion is fitted in the recess of the short tube portion, an injection port is provided in the central portion of the short tube portion, and a sphere is inserted into the space inside the short tube portion so as to be slightly movable. It is an ejection head structure having an ejection nozzle portion.

[0008]

[Third Embodiment] In the present invention, a jet fluid passage is provided in the jet head, and a short cylinder portion is fitted in a recessed portion of the opening end of the jet fluid passage, and the central portion of the short cylinder portion is fitted. An injection port is provided on the rear end of the short tubular portion to form a taper shape, and the tapered rear end portion of the short tubular portion has a large intermediate portion of the recessed portion at the opening end of the jet fluid flow passage. The tapered rear end portion of the short tubular portion is inserted into the large-diameter tubular hollow portion, and the tapered rear end portion of the short tubular portion is locked to the inner portion of the large-diameter tubular hollow portion. It is a jet head structure having a jet nozzle portion in which a sphere is inserted so as to be able to move a little in a space.

[0009]

[Embodiment 4] In the present invention, a jet fluid flow channel is provided in a jet head, and a short tubular portion is fitted in a recess provided at the opening end of the jet fluid flow channel. An injection port is provided, and a sphere is inserted into the space inside the short tube part so that the sphere itself can move, and a narrow injection is made between the outer surface part of the sphere and the inner peripheral surface part of the short tube part. A jet having a jet nozzle portion having a jet nozzle portion which forms a fluid passage and is configured such that when one of the narrow jet fluid passages is closed, the other is opened so that it can be alternately opened and closed. It is a head structure.

[0010]

Fifth Embodiment According to the present invention, a jet fluid passage is provided in the jet head, and a short tubular portion is fitted in a recess provided at the opening end of the jet fluid passage. An injection port is provided, and although it is made of steel balls in the space inside the short tubular portion, a hard sphere such as a steel sphere or a ceramic sphere is inserted so that the sphere itself can move, and the sphere The jet head structure includes an jet nozzle portion having a jet nozzle portion formed by forming a narrow jet fluid passage between an outer surface portion and an inner peripheral surface portion of the short tubular portion.

[0011]

[Embodiment 6] According to the present invention, a jet fluid passage is provided in the jet head, and a short tubular portion is fitted in a recess provided at the opening end of the jet fluid passage. An injection port is provided, and a soft sphere such as rubber or synthetic resin is inserted into the space inside the short cylinder so that the sphere itself can move, and the outer surface of the sphere and the inner circumference of the short cylinder. The jet head structure having the jet nozzle portion having the jet nozzle portion according to claim 1, wherein the jet nozzle portion is formed by forming a narrow jet fluid passage between the surface portions.

[0012]

[Embodiment 7] According to the present invention, a jet fluid flow channel is provided in a jet head, and a short tubular portion is fitted into a recess provided at the opening end of the jet fluid flow channel. An injection port is provided, and a sphere is inserted into the space inside the short tube part so that the sphere itself can move, and a narrow injection is made between the outer surface part of the sphere and the inner peripheral surface part of the short tube part. A jet head structure having a jet nozzle portion which forms a fluid channel and is configured such that when one of the narrow jet fluid channels is closed, the other is opened and can be alternately opened and closed. .

[0013]

According to the jet head structure having the jet nozzle portion of the present invention, the jet head is provided with the jet fluid channel, and the short tubular portion is fitted in the recess provided at the opening end of the jet fluid channel. Wearing, the injection nozzle is provided in the short cylinder part, the sphere is inserted into the space inside the short cylinder part so that the sphere itself can move, and the outer surface part of the sphere and the inside of the short cylinder part Since a narrow flow path for jetting fluid is formed between the peripheral surface portions, by vibrating a vibration member such as a sphere to a slight extent in the space formed at the injection port of the aerosol jetting device. There is an effect that the jetted fluid can be made into a spray state. Further, the jet head structure having the jet nozzle portion of the present invention,
The sphere in the space inside the short tubular portion does not necessarily have to be a true sphere, as long as the sphere can vibrate under the pressure of the ejected fluid, and further, the sphere that accommodates the sphere By providing a receiving seat for supporting the sphere moving in the front and rear of the space at the front and rear positions of the space inside the short tubular portion, the sphere ejects the space between the receiving seats. It is possible to vibrate under the pressure of fluid,
There is an effect that the jetted fluid can be atomized. Further, although the sphere is made of steel balls, it does not have to be made of steel spheres, it may be a hard sphere made of a ceramic sphere, and it can be used as a soft sphere such as rubber or synthetic resin. If the sphere is a sphere that can vibrate under the pressure of the jet fluid in the space between the receiving seats, the function of the jet head structure having the jet nozzle portion of the present invention can be achieved. In this way, since a narrow jet fluid flow path is formed between the spherical outer surface portion and the inner peripheral surface portion of the short tubular portion, in the space portion formed at the injection port of the aerosol injection device, By vibrating a vibrating member such as a sphere, although slightly, there is an effect that the ejected fluid can be surely brought into a spray state.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a state in which a sphere is in contact with a receiving seat in front of a space portion of an injection nozzle portion of an embodiment of an injection head structure having an injection nozzle portion of the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which a sphere is in contact with a rear seat of a space portion of the injection nozzle portion of the embodiment of the injection head structure having the injection nozzle portion of the present invention.

[Explanation of symbols]

1 Jet Nozzle Part 2 Jet Fluid Supply Cylinder to Jet Head Structure 3 L-Shape Communication Channel 4 Vertical Channel 5 Horizontal Channel 6 Sphere in Jet Nozzle Space 7 Catch in Front of Jet Nozzle Space 8 Jet Nozzle space Rear seat 9 Short tube 10 Space inside short tube 11 Gap between front seat and sphere 12 Gap between rear seat and sphere 13 Injection port 14 Short cylinder taper Rear end portion 15 Large-diameter tubular cavity portion before the cavity portion 16 Small-diameter tubular cavity portion behind the cavity portion

Claims (8)

[Claims] 1. A jet fluid flow channel is provided in a jet head, and a short tube portion is fitted in a recess provided at an opening end of the jet fluid flow channel, and a jet port is provided in the short tube portion. , A sphere is inserted into a space inside the short tubular portion so that the sphere itself can move, and a narrow jet fluid flow path is provided between the outer surface portion of the sphere and the inner peripheral surface portion of the short tubular portion. A jet head structure having a jet nozzle portion formed by forming a. 2. A jet fluid passage is provided in the jet head, a short cylinder portion is fitted in a recessed portion of the opening end of the jet fluid passage, and a jet port is formed in the central portion of the short cylinder portion. Provided, inside the injection port, both the front surface portion and the rear surface portion of the space portion inside the short tubular portion are practically made into a spherical state, and the inside of the spherical inner space is front and rear thereof, although slightly. The jet head structure having the jet nozzle portion according to claim 1, wherein a spherical body is inserted so as to be movable. 3. An injection fluid flow path comprising an L-shaped communication flow path of a vertical flow path and a horizontal flow path is provided in the injection head, and the injection fluid flow path is provided in a recessed portion at the opening end thereof. 2. A short cylinder portion is fitted, an injection port is provided in the center of the short cylinder portion, and a sphere is inserted into the space inside the short cylinder portion so as to be slightly movable. Jet head structure having a jet nozzle portion of 4. A jet fluid flow channel is provided in a jet head, a short tube portion is fitted in a recessed portion of an opening end of the jet fluid flow channel, and a jet port is formed in a central portion of the short tube portion. And a rear portion of the short tubular portion is formed in a tapered shape, and the tapered rear end portion of the short tubular portion is a large-diameter tubular cavity at an intermediate portion of the recessed portion of the opening end of the jet fluid flow passage. The short diameter cylindrical hollow portion inside the large diameter cylindrical hollow portion and the tapered rear end portion of the short cylindrical portion is locked in the space inside the short cylindrical portion. The jet head structure having the jet nozzle portion according to claim 1, further comprising a jet nozzle portion formed by inserting a sphere so as to be movable. 5. A jet fluid flow channel is provided in a jet head, and a short tube portion is fitted in a recess provided at an opening end of the jet fluid flow channel, and a jet port is provided in the short tube portion. , A sphere is inserted into a space inside the short tubular portion so that the sphere itself can move, and a narrow jet fluid flow path is provided between the outer surface portion of the sphere and the inner peripheral surface portion of the short tubular portion. 2. The injection nozzle part according to claim 1, further comprising an injection nozzle part that is formed so that when one of the narrow injection fluid passages is closed, the other is opened and can be alternately opened and closed. Jet head structure. 6. A jet fluid flow channel is provided in a jet head, and a short tube portion is fitted in a recess provided at an opening end of the jet fluid flow channel, and a jet port is provided in the short tube portion. , Made of steel balls in the space inside the short tubular portion, but a hard sphere such as a steel sphere or a ceramic sphere is inserted so that the sphere itself can move, and the outer surface portion of the sphere The jet head structure having the jet nozzle portion according to claim 1, further comprising a jet nozzle portion formed by forming a narrow jet fluid passage between the inner peripheral surface portions of the short tubular portion. 7. A jet fluid flow channel is provided in a jet head, and a short tube portion is fitted in a recess provided at an opening end of the jet fluid flow channel, and a jet port is provided in the short tube portion. , A soft sphere such as rubber or synthetic resin is inserted into the space inside the short cylinder so that the sphere itself can move, and between the outer surface of the sphere and the inner peripheral surface of the short cylinder. The jet head structure having the jet nozzle portion according to claim 1, wherein the jet head portion has a jet nozzle portion having a narrow jet fluid passage formed therein. 8. A jet fluid flow channel is provided in a jet head, and a short tube portion is fitted in a recess provided at an opening end of the jet fluid flow channel, and a jet port is provided in the short tube portion. , A sphere is inserted into a space inside the short tubular portion so that the sphere itself can move, and a narrow jet fluid flow path is provided between the outer surface portion of the sphere and the inner peripheral surface portion of the short tubular portion. 2. An injection head structure having an injection nozzle portion according to claim 1, wherein when one of the narrow injection fluid passages is closed, the other is opened so that it can be opened and closed alternately.