JPH06270973A - Injection head structure with injection nozzle part - Google Patents

Abstract

PURPOSE:To realize a desired atomization of injection fluid by arranging a pump mechanism of injection fluid carrying piston type in a space which communicate with an injection port of an aerosol injector. CONSTITUTION:A flow passage for injection fluid is provided at an injection head, an injection port 8 is provided at an opening end of the flow passage for injection fluid and a piston type pump mechanism is built at a middle position in the flow passage for injection fluid leading to the injection port 8. A piston 2 provided in the piston type pump mechanism is pressed by an elastic spring 3 to move forward, and repulsion force of the elastic spring 3 can be adjusted. When force is accumulated in the elastic spring 3 which acts on the piston 2 in a moving process of the injection fluid in the aerosol injection container, the repulsion force of the elastic spring 3 moves the piston 2 counterwise by a desired distance. This action can be repeated by a desired number of times. The piston 2, receiving injection pressure of the injection fluid from a valve stem 12, reciprocates many times.

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]

By the way, 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. . Then, the pressurized gas in the aerosol container continues to drop 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 have a structure capable of rapidly expanding the injection port portion of the aerosol injection device from the pressurized gas state to the atomized state. The first object of the present invention is to bring the ejected fluid into the atomized state by disposing a piston pump mechanism for ejecting fluid transfer in a space communicating with the ejection port of the aerosol ejecting apparatus. . In addition, in order to ensure that the jetted fluid is in the atomized state, a jetting fluid channel communicating with the jet port of the jet head is provided, and the jetting amount of jetting fluid is adjusted from the outside at an intermediate position of the jetting fluid channel. It is a second object of the present invention to provide an injection head structure having an injection nozzle portion having a piston pump mechanism for transferring an injection fluid that is adjustable. Further, the central shaft portion of the piston portion is not practically made movable, and only the peripheral side edge portion of the front surface portion of the piston portion is lowered by the internal pressure. The present invention is to eject the ejection fluid from the ejection port of the tip of the ejection fluid channel while maintaining a balanced state by repeating minute vibrations between the downward pressure for lowering the pressure and the pressure from the lower side to the upper side. And the third purpose of.

[0004]

DISCLOSURE OF THE INVENTION According to the present invention, a jet fluid flow channel is provided in a jet head, an jet port is provided at an opening end of the jet fluid flow channel, and a jet fluid flow up to the jet port is provided. It is an injection head structure having an injection nozzle portion having a built-in injection fluid transfer piston type pump mechanism capable of adjusting an injection amount of an injection fluid at an intermediate position of a passage.

[0005]

In the jet head structure having the jet nozzle portion of the present invention, the jet head is provided with the jet fluid channel, the jet end is provided with an jet port, and the jet port is provided. Since a piston type pump mechanism for ejecting fluid transfer capable of adjusting the injection amount of the ejecting fluid is incorporated at an intermediate position of the flow path for ejecting fluid, a piston type pump mechanism for transferring the ejecting fluid at the injection port of the aerosol injecting device is provided. By operating it, it is possible to adjust the ejection amount of the ejection fluid to a desired atomized state. Further, the jet head structure having the jet nozzle portion of the present invention is provided with a jet fluid channel in the jet head, an jet port is provided at the opening end of the jet fluid channel, and jets up to the jet port are provided. A piston type pump mechanism is built in the middle position of the fluid flow path, and the piston provided in the piston type pump mechanism is biased by an elastic spring so that the piston can move forward. Since the elastic force can be adjusted, the resistance of the elastic spring acting on the piston to the piston can be adjusted.
First, when the elastic spring that acts on the piston in the course of movement of the injection fluid in the aerosol injection container is made to store a force, then the elastic force of the elastic spring causes the piston to move in the opposite direction by the desired amount. The operation can be repeated repeatedly. Then, upon receiving the jet pressure of the jet fluid from the valve stem, the piston frequently reciprocates, and the jet fluid can be brought into a spray state. Further, the jet head structure having the jet nozzle portion of the present invention is provided with a jet fluid channel in the jet head, an jet port is provided at the opening end of the jet fluid channel, and jets up to the jet port are provided. A piston type pump mechanism for transferring jet fluid is built in at an intermediate position of the fluid flow path,
Since the piston of the pump mechanism descends by the internal pressure of the fluid ejected from the valve stem and is in communication with the fluid inflow passage leading to the ejection port, it is an ejection head structure having an ejection nozzle portion. The piston provided in the piston type pump mechanism receives the jet pressure of the jet fluid from the valve stem to the jet port of the jet device,
It frequently reciprocates to ensure that the ejected fluid is in a spray state, and biases the piston portion upward by the compression coil spring so that the piston portion of the piston pump mechanism can move forward. Since the injection head structure has an injection nozzle portion provided with a screw type adjusting member capable of adjusting the degree to which the piston portion is urged by the compression type coil spring from the outside, it is adjusted from the outside. A screw type adjusting member that can be adjusted is adjusted externally, and the degree of urging the piston portion upward by the compression coil spring is adjusted, and the spray state ejected from the compression coil spring injection nozzle is in a desired state. It can be changed.

[0006]

Embodiment 1 In the present invention, a jet fluid flow channel is provided in a jet head, a jet port is provided at an opening end of the jet fluid flow channel, and an intermediate position of the jet fluid flow channel up to the jet port is provided. An injection head structure having an injection nozzle portion having a built-in piston type pump mechanism for transferring an injection fluid, which is capable of adjusting the injection amount of the injection fluid from the outside.

[0007]

Second Embodiment In the present invention, a jet fluid flow passage is provided in the jet head, an jet port is provided at the opening end of the jet fluid flow passage, and an intermediate position of the jet fluid flow passage up to the jet port is provided. Has a piston type pump mechanism and has a spray nozzle part for biasing the spring material upward so that the piston can move forward and for adjusting the elastic force of the spring material. It is a jet head structure.

[0008]

Third Embodiment In the present invention, a jet fluid passage is provided in the jet head, a jet port is provided in front of the jet fluid passage, and jetting is performed at an intermediate position of the jet fluid passage up to the jet port. A piston type pump mechanism for fluid transfer is built in, and the piston of the pump mechanism is lowered by the pressure of the injection fluid from the valve stem so that it can communicate with the injection fluid inflow path leading to the injection port, and the body of the piston A portion of the guide tubular member of the piston, and a base of the tubular member for guiding the piston, and a portion of the tubular member for guiding the piston that serves as the spring seat, and a base portion of the tubular member for guiding the piston, and It is an injection head structure having an injection nozzle portion configured such that a support portion of a portion which becomes a spring seat can be moved forward and backward, and a forward and backward movement distance of a piston of the pump mechanism to the injection fluid inflow path can be adjusted.

[0009]

[Embodiment 4] In the present invention, a jetting fluid channel is provided in a jetting head, a jetting port is provided at an opening end portion of the jetting fluid channel, and an intermediate position of the jetting fluid channel up to the jetting port is provided. In a jet head structure having a jet nozzle portion having a built-in jet fluid transfer piston pump mechanism, a jet fluid passage is provided at the jet head, and the jet fluid passage is provided at the opening end of the jet fluid passage. Fitting a short cylinder part in the recess, providing an injection port in the short cylinder part, inserting a short cylinder into the space inside the short cylinder, and allowing the short cylinder itself to move, The jet head structure has an jet nozzle portion formed by forming a narrow flow path for jet fluid between an outer surface portion of the short cylindrical body and an inner peripheral surface portion of the short tubular portion.

[0010]

Fifth Embodiment In the present invention, a jet fluid flow channel is provided in the jet head, an jet port is provided at the opening end of the jet fluid flow channel, and an intermediate position of the jet fluid flow channel up to the jet port is provided. A cylindrical member for guiding the piston portion of the piston type pump mechanism having a flow path for the injection fluid is provided in the central part of the, and another member for supporting the base of the cylindrical member for guiding the piston portion of the piston type pump mechanism is provided. A separate member is detachably fixed to the lower opening of the injection head, and is a main body of the piston and a spring seat, and a base of the guide tubular member and a spring seat. A compression coil spring is interposed between the compression coil coil and the piston of the pump mechanism by the internal pressure of the injection fluid from the valve stem so that the piston can be communicated with the injection fluid inflow path communicating with the injection port. Between the spring and the piston of the pump mechanism By the interaction, the vertical reciprocating motion of the piston can be repeated and repeated, and another member for supporting the base portion of the guiding tubular member and the portion to be the spring seat is provided in the lower opening portion of the injection head. An injection head structure having an injection nozzle portion that is detachably fixed and that allows the support member to move forward and backward in order to adjust the elastic force of the compression coil spring.

[0011]

Sixth Embodiment According to the present invention, the injection fluid flows into the upper space portion of the piston portion, and the piston portion moves downward while pushing the compression coil spring. At a certain point, the injection port and the upper space portion of the piston portion are connected to each other. And the pressure in the upper space portion of the piston portion is instantaneously lowered so that the piston portion can be raised by a compression coil spring, and the vertical reciprocating motion of the piston portion is repeated and repeated. To form a piston type pump mechanism capable of repeating the action of the piston portion, and biasing the piston portion upward by the compression coil spring so that the piston portion can move forward. And an injection provided with a screw type adjusting member capable of externally adjusting the degree to which the piston portion is biased by the compression type coil spring. It is an injection head structure having a nozzle portion.

[0012]

[Embodiment 7] According to the present invention, a jet fluid passage is provided in the jet head, an jet port is provided at the opening end of the jet fluid passage, and an intermediate position of the jet fluid passage up to the jet port is provided. In a jet head structure having a jet nozzle portion having a built-in jet fluid transfer piston pump mechanism, a jet fluid passage is provided at the jet head, and the jet fluid passage is provided at the opening end of the jet fluid passage. Fitting a short cylinder part in the recess, providing an injection port in the short cylinder part, inserting a short cylinder into the space inside the short cylinder, and allowing the short cylinder itself to move, A narrow jet fluid passage is formed between the outer surface portion of the short cylinder and the inner peripheral surface portion of the short tubular portion, and when one of the narrow jet fluid passages is closed, the other is opened. So that they can be alternately opened and closed so that the piston part of the piston type pump mechanism can move forward. An injection nozzle in which the piston portion is biased upward by the compression coil spring, and a screw type adjustment member is provided to adjust the degree to which the piston portion is biased by the compression coil spring from the outside. A jet head structure having a portion.

[0013]

[Embodiment 8] In the present invention, a jetting fluid channel is provided in a jetting head, a jetting port is provided at an opening end of the jetting fluid channel, and an intermediate position of the jetting fluid channel up to the jetting port is provided. In a jet head structure having a jet nozzle portion having a built-in jet fluid transfer piston pump mechanism, a jet fluid passage is provided at the jet head, and the jet fluid passage is provided at the opening end of the jet fluid passage. A short cylinder portion is fitted in the recess, an injection port is provided in the short cylinder portion, and a hard short cylinder body such as a steel short cylinder body or a ceramic short cylinder body is provided in the space portion inside the short cylinder portion. It is inserted so that the short cylinder itself can move, and a narrow jet fluid flow path is formed between the outer surface portion of the short cylinder and the inner peripheral surface portion of the short cylinder portion. The compression coil spring moves the piston portion so that the piston portion can move forward. Become so biased towards a jetting head structure having an injection nozzle portion where the piston portion is provided with a screw-type adjustment member capable of moderate adjust the degree that is biased by the compression coil spring from the outside.

[0014]

[Embodiment 9] According to the present invention, a jetting fluid channel is provided in a jetting head, a jetting port is provided at an opening end of the jetting fluid channel, and an intermediate position of the jetting fluid channel up to the jet port is provided. In a jet head structure having a jet nozzle portion having a built-in jet fluid transfer piston pump mechanism, a jet fluid passage is provided at the jet head, and the jet fluid passage is provided at the opening end of the jet fluid passage. A short cylinder is fitted in the recess, an injection port is provided in the short cylinder, and a soft short cylinder such as rubber or synthetic resin is inserted into the space inside the short cylinder, and the short cylinder itself. And a narrow cylinder body outer surface portion and an inner peripheral surface portion of the short cylinder portion to form a narrow fluid passage for jet fluid, and the piston portion of the piston type pump mechanism can move forward. As described above, the compression coil spring urges the piston portion upward, It is Stone part is an injection head structure having an injection nozzle portion to be provided with a screw-type adjustment member capable of moderate adjust the degree that is biased by the compression coil spring from the outside.

[0015]

[Embodiment 10] According to the present invention, a jet fluid passage is provided in the jet head, and an jet port is provided at the opening end of the jet fluid passage.
In an injection head structure having an injection nozzle portion including a piston pump mechanism for transferring an injection fluid at an intermediate position of the injection fluid flow path to the injection port, the injection head has a flow path for the injection fluid, A short tube portion is fitted into a recess provided at the opening end of the jet fluid flow path, and an injection port is provided in the short tube portion.
A short cylinder is inserted into the space inside the short cylinder so that the short cylinder itself can move, and a narrow jet is provided between the outer surface of the short cylinder and the inner peripheral surface of the short cylinder. A fluid passage is formed so that when one of the narrow jet fluid passages is closed, the other is opened so that it can be opened and closed alternately, and the piston portion of the piston type pump mechanism moves forward. So that the piston portion is biased upward by the compression coil spring, and a screw type adjustment member that can adjust the degree to which the piston portion is biased by the compression coil spring from outside is provided. It is an ejection head structure having an ejection nozzle portion formed by

[0016]

[Embodiment 11] According to the present invention, a jet fluid channel is provided in the jet head, and an jet port is provided at the opening end of the jet fluid channel.
In an injection head structure having an injection nozzle portion including a piston pump mechanism for transferring an injection fluid in an intermediate position of an injection fluid passage to the injection port, a piston portion of the piston pump mechanism moves forward. So that the piston portion is biased upward by the compression coil spring, and a screw type adjustment member that can adjust the degree to which the piston portion is biased by the compression coil spring from outside is provided. The screw of the screw type adjusting member that adjusts the degree of biasing by the compression type coil spring from the outside is rotated to compress the compression force of the piston portion of the piston type pump mechanism located above. So that the piston portion and the compression coil spring are not twisted so that they can be adjusted together with the coil spring. The guide shaft is separated from the guide member support part, and when the pressure for jetting is removed, the central shaft part of the piston part is removed to eliminate the liquid that is missing It is not practically movable, and only the peripheral edge of the front face portion of the piston portion is lowered by the internal pressure, and the piston portion is provided with a downward pressure for lowering from the upper center of the piston portion. A jet head structure having a jet nozzle portion configured to jet a jet fluid from a jet port at a tip portion of a jet fluid flow path while maintaining a balanced state while repeating minute vibrations between pressures from a lower side to an upper side. It is the body.

[0017]

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, the jet port is provided at the opening end portion of the jet fluid channel, and the jet port is provided. Since a piston type pump mechanism for ejecting fluid transfer capable of adjusting the injection amount of the ejecting fluid is incorporated at an intermediate position of the flow path for ejecting fluid, a piston type pump mechanism for transferring the ejecting fluid at the injection port of the aerosol injecting device is provided. When operated, there is an effect that the ejection amount of the ejection fluid can be adjusted to a desired atomized state. Further, the jet head structure having the jet nozzle portion of the present invention, the jet head is provided with a flow path for jet fluid, and the jet end is provided with an injection port,
A piston type pump mechanism is built in at an intermediate position of the injection fluid flow path to the injection port, and the piston provided in the piston type pump mechanism is urged by an elastic spring so that the piston can move forward, Further, since the elastic force of the elastic spring can be adjusted, it is possible to adjust the resistance force of the elastic spring acting on the piston to the piston.First, the injection fluid in the aerosol injection container When the elastic spring acting on the piston is made to store a force in the moving process, the elastic force of the elastic spring causes the piston to move in the opposite direction by a desired amount, and the operation can be repeated repeatedly. effective. Then, the piston receives the jet pressure of the jet fluid from the valve stem,
There is an effect that it can reciprocate frequently to make the jetted fluid into a spray state. Further, the jet head structure having the jet nozzle portion of the present invention, the jet head is provided with a flow path for jet fluid,
An injection port is provided at the opening end of the flow path for the injection fluid, and a piston type pump mechanism for transferring the injection fluid is built in at an intermediate position of the flow path for the injection fluid up to the injection port, and the piston of the pump mechanism is a valve stem. It drops by the internal pressure of the injection fluid from
Since it is the jet head structure having the jet nozzle portion configured to communicate with the jet fluid inflow path communicating with the jet port, the jet pressure of the jet fluid from the valve stem can be applied to the jet port of the aerosol jet device. In response to this, the piston provided in the piston type pump mechanism reciprocates frequently, and the ejected fluid can be reliably atomized, and
The compression coil spring biases the piston portion upward so that the piston portion of the piston pump mechanism can move forward, and the degree to which the piston portion is biased by the compression coil spring is set. Since it is an injection head structure having an injection nozzle portion provided with a screw type adjustment member that can be adjusted from the outside, a screw type adjustment member that can be adjusted from the outside is adjusted from the outside, and by the compression coil spring There is an effect that the degree of urging the piston portion upward can be adjusted to adjust the spray state ejected from the compression coil spring injection nozzle to a desired state.

[Brief description of drawings]

FIG. 1 is an elastic spring for supporting a piston in a piston type pump mechanism built-in space portion communicating with a flow path to an injection nozzle portion of an embodiment of an injection head structure having an injection nozzle portion of the present invention. FIG. 3 is a vertical cross-sectional view of a stretched state, that is, a stationary state.

FIG. 2 is an elastic spring that supports a piston in a piston-type pump mechanism built-in space portion that communicates with a flow path to an injection nozzle portion of an embodiment of an injection head structure having an injection nozzle portion of the present invention. FIG. 4 is a vertical cross-sectional view of the elastic spring in the most contracted state in the contracted state, that is, in the operating state.

[Explanation of symbols]

1 Piston guide member / jet flow passage 2 Piston / spring seat of pump mechanism 3 Elastic spring supporting piston 4 Spring seat on piston guide member 5 Seat of piston guide member support 6 Male of piston guide member support Screw 7 Through hole of piston guide member support portion 8 Injection port of injection head structure 9 Short tube portion 10 Female screw of piston guide member support portion 11 Movable body in space inside short tube portion 12 Valve stem 13 Inside short tube portion Communication hole to space 14 Piston guide cylinder 15 Spring seat reinforcement ring on the back side of piston 16 Lower flange of piston guide member 17 Spring seat reinforcement ring of lower flange 18 Cavity at the top of injection head structure 19 Piston Tip projection part and jet passage 20 Piston receiving part of guide cylinder

Claims (7)

[Claims] 1. A jet fluid flow channel is provided in a jet head, a jet port is provided at an opening end of the jet fluid flow channel, and the jet fluid is provided at an intermediate position of the jet fluid flow path up to the jet port. An injection head structure having an injection nozzle portion having a built-in piston type pump mechanism for transferring an injection fluid capable of adjusting an injection amount. 2. A jet fluid flow channel is provided in a jet head, a jet port is provided at an opening end of the jet fluid flow channel, and jetting is performed from the outside to an intermediate position of the jet fluid flow channel up to the jet port. 2. An injection head structure having an injection nozzle portion according to claim 1, which has a built-in piston type pump mechanism for transferring an injection fluid that is capable of adjusting the injection amount of the fluid. 3. A jet type pump is provided in the jet head, a jet port is provided at an opening end of the jet fluid channel, and a piston pump is provided at an intermediate position of the jet fluid channel up to the jet port. The injection nozzle portion according to claim 1, wherein a mechanism is built in, the spring member is biased upward so that the piston can move forward, and the elastic force of the spring member can be adjusted. A jet head structure having. 4. A jet fluid transfer passage is provided at the jet head, a jet port is provided at the tip of the jet fluid passage, and a jet fluid transfer piston is provided at an intermediate position of the jet fluid passage to the jet port. -Type pump mechanism is built-in, and the piston of the pump mechanism is lowered by the pressure of the injection fluid from the valve stem so as to be able to communicate with the injection fluid inflow passage leading to the injection port. A compression coil spring is interposed between a portion to be a seat and a portion to be a spring seat of the guiding cylindrical member of the piston, and serves as a base and a spring seat of the guiding cylindrical member of the piston. 2. An injection head structure having an injection nozzle portion according to claim 1, wherein a support portion of the portion can be moved forward and backward, and a forward and backward distance of a piston of the pump mechanism to the injection fluid inflow path can be adjusted. 5. A jet fluid flow channel is provided in a jet head, a jet port is provided at an opening end of the jet fluid flow channel, and a central portion of an intermediate position of the jet fluid flow channel up to the jet port is provided. A tubular member for guiding the piston portion of the piston type pump mechanism having a flow path for jetting fluid is provided, and another member for supporting the base of the tubular member for guiding the piston portion of the piston type pump mechanism is provided. Member is detachably fixed to the opening of the lower portion of the injection head, and compressed between the main body portion of the piston and the spring seat and the base portion of the guiding tubular member and the spring seat. Type coil spring, the piston of the pump mechanism is lowered by the internal pressure of the injection fluid from the valve stem so that the piston can communicate with the injection fluid inflow path communicating with the injection port, and the compression type coil spring and the pump The interaction of the mechanism with the piston The reciprocating motion of the up and down direction of the stone can be repeated repeatedly, and another member for supporting the base portion of the guiding cylindrical member and the portion to be the spring seat can be freely engaged with and disengaged from the injection head lower opening. An injection head structure having an injection nozzle portion according to claim 1, wherein the injection head portion is fixedly attached to the injection head, and the support member can be moved back and forth in order to adjust the elastic force of the compression coil spring. 6. An injection fluid flows into an upper space portion of a piston portion, the piston portion moves downward while pushing a compression coil spring, and at a certain point, an injection port and an upper space portion of the piston portion are communicated with each other, Instantaneously, the pressure in the upper space of the piston portion is lowered so that the piston portion can be raised by the compression coil spring, and the vertical reciprocating motion of the piston portion can be repeatedly repeated. A piston type pump mechanism is formed in which the action of the piston portion can be repeated, and the piston portion is biased upward by the compression coil spring so that the piston portion can move forward. 2. A screw type adjusting member for adjusting the degree to which the portion is biased by the compression type coil spring from the outside is provided. Injection head structure having a nozzle portion morphism. 7. A jet fluid flow channel is provided on a jet head, a jet port is provided at an opening end of the jet fluid flow channel, and the jet fluid is provided at an intermediate position of the jet fluid flow channel up to the jet port. In an injection head structure having an injection nozzle part that incorporates a piston type pump mechanism for transferring an injection fluid that is capable of adjusting the injection amount, when the pressure for ejection is exhausted, the liquid that disappears In order to reduce the amount of the pool by eliminating the central part of the piston part, the central axis part of the piston part is not made practically movable, and only the peripheral edge of the front part of the piston part is lowered by the internal pressure. In the portion, the injection fluid is used as the injection fluid flow while maintaining a balanced state by repeating micro-vibration between the downward pressure for lowering from the upper center of the piston portion and the pressure from the lower side to the upper side. Injection head structure having an injection nozzle portion of the formed by the injection port of the tip to be jetted according to claim 1, wherein.