JP2008014399A - Unplugging device, pressurized fluid cylinder device, and method of manufacturing pressurized fluid cylinder device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an unplugging device capable of realizing the controlled blowout of a compressed gas by a simple structure. <P>SOLUTION: This unplugging device 4 opens and closes a pressurized fluid container 5 in which a pressurized fluid is charged. The unplugging device comprises a sealing member 10 in which a blowout opening 30a for blowing out the pressurized fluid is formed, a sharp body 11 stopping the blowout of the pressurized fluid when a sharp part 11a is inserted into the blowout opening 30a and blowing out the pressurized fluid when the sharp part 11a is extracted from the blowout opening 30a, an operation member 14 lifting the sharp body 11 from and to the blowout opening 30a, and an elastic seat 9 pressingly held on the moving path of the sharp body 11 and having a drilled hole 9a penetrating the sharp part 11a. When the sharp body 11 is extracted from the drilled hole 9a, the pressurized fluid is blown out through the drilled hole 9a. When the sharp body 11 is inserted into the drilled hole 9a, the sharp body 11 is closely fitted to the drilled hole 9a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a plug opening device that ejects pressurized fluid filled in a cylinder, and a pressurized fluid cylinder device using the plug opening device.

  2. Description of the Related Art Conventionally, dust blowers that blow away dust attached to precision equipment and photographic negatives have been widely used. These dust blower products are generally formed by filling a spray can with a liquefied gas as a propellant under high pressure. A nozzle that also serves as an ejection button for opening and closing a valve is formed at the top of the spray can, and a blowing tube for ejecting gas in detail is connected to one end of the nozzle. When the ejection button is pressed, the liquefied gas is vaporized in the can and ejected from the tube connected to the nozzle by the pressure at that time.

  As a liquefied gas used as an injection material for a target component, HFC (hydrofluorocarbon) 134a, HFC152a, etc. are widely used as alternative chlorofluorocarbons, and are stored in a liquid state under high pressure in a spray can.

  However, since this HFC causes a greenhouse effect when released into the atmosphere, it is listed as a greenhouse gas whose emissions are regulated in the Kyoto Protocol adopted to achieve the objectives of the Framework Convention on Climate Change. Emission reduction is also being promoted throughout the industry. For example, the greenhouse effect of HFC134a is 1300 times that of carbon dioxide, and the greenhouse effect of HFC152a is 130 times that of carbon dioxide. Therefore, it is hoped that the use of HFC products will be switched to products using other compressed gases. It is rare.

JP 2003-146393 A

  By the way, in an aerosol can filled with a liquefied gas in a spray can, the compressed gas can be easily sprayed. However, since the liquefied gas is filled under a high pressure, it is complicated to control the ejection of the compressed gas. Mechanism is required.

  In addition, since the liquefied gas is filled in the spray can in a high pressure state, it is necessary to take a certain gas leakage countermeasure when the gas ejection is stopped, and when the gas is ejected, the gas ejection A mechanism that does not inhibit the above is required.

  For example, in the gas cylinder device described in Patent Document 1, the needle is perforated with a needle in the sealing plate that closes the opening of the gas cylinder, and when the gas ejection is stopped, the needle is pierced into the perforation and the gas is ejected. In this case, the needle is pulled out from the perforation, so that the gas is ejected and stopped with a simple structure.

  However, by piercing the needle, it is difficult to completely block the perforation, and a slight amount of gas leakage may occur. In a gas cylinder device that controls ejection of high-pressure gas by inserting and removing such a needle, it is desired that gas leakage countermeasures and smooth gas ejection can be realized with a simple configuration.

  Therefore, the present invention uses a simple mechanism to prevent gas leakage when stopping gas ejection, and to prevent gas ejection when gas is ejected regardless of the gas leakage prevention means. It is an object of the present invention to provide a pressure fluid opening device, a pressurized fluid cylinder device, and a method for manufacturing a pressurized fluid cylinder device.

  In order to solve the above-described problems, a device for opening a pressurized fluid cylinder according to the present invention is a device for opening and closing a pressurized fluid container filled with pressurized fluid, in which the pressurized fluid is ejected. A sealing member having a spout formed therein, and a pointed end projecting from the spout to stop the pressurization of the pressurized fluid, and the pointed end is withdrawn from the spout A sharpened body for ejecting fluid, an operation member for raising and lowering the sharpened body with respect to the ejection port, and a perforation that is pressed and held on the moving locus of the sharpened body and inserted into the pointed portion are provided. An elastic sheet, and the sharpened body is pulled out from the perforations to eject the pressurized fluid from the perforations, and the sharpened body is thrust into the perforations so that the sharpened body and the perforations are brought into close contact with each other. Things A.

  The pressurized fluid cylinder apparatus according to the present invention includes a cylinder filled with a pressurized fluid, a sealing member that closes the cylinder and is provided with a jet port for the pressurized fluid, and a pointed end is the above-mentioned A sharpened body that stops the ejection of the pressurized fluid by being thrust to the ejection port, and ejects the pressurized fluid by the tip end portion being pulled out from the ejection port, and the sharpened body with respect to the ejection port. And an elastic sheet that is pressed and held on the movement trajectory of the sharp body and provided with a perforation that is inserted through the pointed end portion. By pulling out more, a stress is generated in a direction in which the perforation is closed, and the sharp body is thrust into the perforation, whereby the perforation is brought into close contact with the sharp body.

  The pressurized fluid cylinder apparatus according to the present invention includes a pressurized fluid, a cylinder filled with the pressurized fluid, and a sealing member that closes the cylinder and is provided with an outlet for the pressurized fluid. And a sharpened body that stops the ejection of the pressurized fluid by the pointed portion protruding from the ejection port, and ejects the pressurized fluid by the pointed end portion being pulled out from the ejection port, and the sharpened body And an elastic sheet provided with a perforation that is pressed and held on the moving locus of the sharpened body and is inserted into the pointed end portion. The pressurized fluid is ejected from the perforations by being pulled out from the perforations, and the sharp body and the perforations are brought into close contact with each other when the sharp body is thrust into the perforations.

  In addition, a method of manufacturing a pressurized fluid cylinder apparatus according to the present invention includes a cylinder filled with a pressurized fluid, a sealing member that closes the cylinder and is formed with a jet port for the pressurized fluid, and a tip. A sharpened body that stops ejection of the pressurized fluid when the portion is pushed to the ejection port, and ejects the pressurized fluid when the pointed end portion is pulled out from the ejection port, and the sharp body is ejected from the ejection port. The sharpened body of the pressurized fluid cylinder apparatus comprising: an operating member that moves up and down with respect to the outlet; and an elastic sheet that is pressed and held on the moving locus of the sharpened body and provided with a perforation that is inserted into the pointed end. Is held in a state of being pulled out from the jet port and the perforations, the cylinder is filled with a liquid pressurized fluid, and the sharpened body is pushed up to the jet port and the perforations.

  According to the pressurizing fluid cylinder opening device, the pressurized fluid cylinder device, and the pressurized fluid cylinder device manufacturing method according to the present invention, in the state where the ejection of the pressurized fluid is stopped, the sharp tip of the sharp body Is thrust into the perforation of the elastic sheet. At this time, since the elastic sheet is stressed in a direction that always closes the perforations by being pressed by the pressing member, the sharpened body and the perforations are firmly adhered to each other, and the pressurized fluid is surely prevented from leaking. be able to.

  In the state where the pressurized fluid is ejected, the tip of the sharp body is pulled out from the perforated elastic sheet. At this time, the pressurized fluid filled in the cylinder opposes the stress direction of the elastic sheet in which stress is always generated in the direction of closing the perforations by being pressed by the pressing member, and the outside is closed without blocking the perforations. Can be erupted.

  Therefore, according to the present invention, it is possible to control the ejection and stop of the pressurized fluid with a simple configuration.

  Hereinafter, a pressurized fluid cylinder apparatus to which the present invention is applied, a manufacturing method of the pressurized fluid cylinder apparatus, a pressurized fluid filling method, a pressurized fluid refilling method, a pressurized fluid filling apparatus, and a pressurized fluid filling system are described. A case where the present invention is applied to a gas jetting apparatus 1 using carbon dioxide gas as a pressurized fluid will be described in detail with reference to the drawings. This gas ejection device 1 is used, for example, as a dust blower for removing dust when manufacturing and maintaining precision instruments and handling negatives such as semiconductors and photographs, as shown in FIGS. Are provided with a carbon dioxide cartridge cylinder 5 filled with carbon dioxide gas as a compressed gas, and a plug opening device 4 for opening and closing the carbon dioxide cartridge cylinder 5. Is configured.

  The carbon dioxide cartridge cylinder 5 is filled with liquefied carbon dioxide in a substantially cylindrical metal casing. The carbon dioxide cartridge cylinder 5 has an opening 6 on the upper end side of the metal casing. The opening 6 is sealed with an unsealing device 4 to be described later, and the ejection of carbon dioxide in the metal casing is prevented. The carbon dioxide cartridge cylinder 5 is closed when a needle 11 held by a holding member 12 (described later) is thrust into a jet port 30a of the pressing member 10 of the opening device 4 and a perforation 9a of the elastic sheet 9. The carbon dioxide cartridge cylinder 5 ejects carbon dioxide gas by pulling up the needle 11 protruding from the ejection port 30a and the perforation 9a.

  The carbon dioxide cartridge cylinder 5 has a thread groove 7 formed on the outer peripheral portion of the opening 6 to be screwed with a head cap 16 described later.

  Further, the carbon dioxide cartridge cylinder 5 is provided with a supply portion 85 to which liquefied carbon dioxide gas is supplied by being attached to a gas filling device 120 described later on the lower end side opposite to the upper end side where the opening 6 is provided. . The configuration of the supply unit 85 will be described in detail later.

  The opening device 4 for opening and closing the carbon dioxide gas cartridge cylinder 5 constitutes an ejection part for ejecting carbon dioxide gas filled in the carbon dioxide gas cartridge cylinder 5, as shown in FIGS. 2 to 4. , A housing 8 attached to the opening 6 of the carbon dioxide cartridge cylinder 5 to close the opening 6, an elastic sheet 9 disposed in the housing 8, a pressing member 10 for pressing the elastic sheet 9, and the housing 8 And a needle 11 that controls the ejection of the carbon dioxide gas by opening and closing a jet port 30a formed in the pressing member 10 and a perforation 9a in the elastic sheet 9, and the needle 11 is held. The holding member 12, the torsion coil spring 13 that urges the holding member 12 toward the opening of the carbon dioxide cartridge cylinder 5, and the holding member 12 as a carbon dioxide cart An operation member 14 that releases carbon dioxide by operating in a direction away from the opening 6 of the wedge cylinder 5, a flow path plate 15 that forms a flow path of carbon dioxide ejected from the carbon dioxide cartridge cylinder 5, and a carbon dioxide cartridge It is connected to the cylinder 5 and has a housing 8, an elastic sheet 9, a pressing member 10, a needle 11, a holding member 12, a torsion coil spring 13, and a head cap 16 that houses a flow path plate 15.

  The housing 8 is formed using, for example, a metal such as brass, and has a cylindrical body portion 20 whose one end in the longitudinal direction is open and whose other end is closed, and a flange portion 21 is formed on a side edge on the open end side. Is formed. In the housing 8, the body portion 20 is inserted into the carbon dioxide cartridge cylinder 5 through the opening 6 by engaging the flange portion 21 with the opening 6 of the carbon dioxide cartridge cylinder 5 through the gasket 22.

  The housing 8 is provided with a placement portion 24 on which the elastic sheet 9 is placed by closing the bottom portion. The mounting portion 24 has a gas hole 8a serving as an outlet for carbon dioxide gas. The gas hole 8a is drilled with a drill or the like, and has a diameter of 0.1 mm to 0.2 mm, for example. This gas hole 8a defines the gas flow rate when the opening device 4 is opened according to its size. If the diameter is increased, a large amount of gas is ejected, and if it is decreased, the gas flow rate can be suppressed. Depending on the application, it can be used properly.

  In the housing 8, the elastic sheet 9 is attached to the inner surface of the body portion 20 of the mounting portion 24, and the pressing member 10 that presses the elastic sheet 9 is disposed in the body portion 20.

  The body portion 20 of the housing 8 is integrated by screwing a screw groove 23 into which the pressing member 10 is screwed to the inner periphery and screwing a screw groove 28 cut to the outer periphery of the pressing member 10. The

  The elastic sheet 9 prevents the carbon dioxide gas filled in the carbon dioxide cartridge cylinder 5 from leaking, and is always pressed by the pressing member 10 over almost the entire surface with a constant pressure.

  Further, the elastic sheet 9 is pierced by a needle 11 to be described later, so that a perforation 9a continuous with the ejection port 30a provided in the pressing member 10 is formed. In the elastic sheet 9, the stress S generated by being pressed by the pressing member 10 is generated in the direction toward the perforation 9a.

  In the elastic sheet 9, as shown in FIG. 5A, the perforation 9 a is brought into close contact with the needle 11 by the stress S when the needle 11 is inserted through the perforation 9 a while being pressed by the pressing member 10. Thereby, the elastic sheet 9 can prevent the gas leakage from the jet port 30a projected on the needle 11 by reliably closing the perforation 9a formed continuously with the jet port 30a. Further, as shown in FIG. 5 (b), the elastic sheet 9 is pressed because the carbon dioxide gas filled in the carbon dioxide cartridge cylinder 5 in a compressed state passes through the perforations 9a when the needle 11 is pulled out from the perforations 9a. The stress S generated in the perforation 9a under pressure by the member 10 is opposed to the pressure of the carbon dioxide gas, so that the gas flow path is secured without blocking the perforation 9a, and the carbon dioxide gas is ejected to the outside.

  As shown in FIG. 4, the elastic sheet 9 is formed in a disk shape having substantially the same diameter as the mounting portion 24 of the housing 8, and the outer surface of the elastic sheet 9 is the body portion 20 of the housing 8 as shown in FIG. It is disposed in contact with or substantially in contact with the inner peripheral wall. Therefore, in the elastic sheet 9, the internal stress S generated by being pressed by the pressing member 10 is directed toward the perforation 9a.

  The elastic sheet 9 is made of a material that generates an internal stress S when pressed by the pressing member 10, for example, a fluorine-based rubber sheet. Further, the constituent material of the elastic sheet 9 may be an elastic material having a property that an internal stress S is generated in the inner surface direction of the perforation 9a when pressed by the pressing member 10, for example, natural rubber, butyl rubber, isoprene rubber, Various thermoplastic elastomers such as butadiene rubber, styrene-butadiene rubber, silicone rubber, polyurethane, polyester, polyamide, olefin, and styrene, or a mixture thereof can be used. In addition, the elastic sheet 9 may be configured by a multilayer structure.

  The elastic sheet 9 has a thickness of about 1 mm, for example, and is pressed by the pressing member 10 to have a thickness of about 0.2 mm.

  The pressing member 10 that presses the elastic sheet 9 is made of, for example, a metal such as brass, and has a cylindrical body portion 26 that is open at one end in the longitudinal direction and closed at the other end. A flange portion 27 is formed at the edge. The body portion 26 has a thread groove 28 which is screwed into the thread groove 23 formed in the body portion 20 of the housing 8 on the outer peripheral portion. Further, the body part 26 is formed with a pressing part 29 having a reduced diameter through a step part 26a toward the tip on the closed end side. The pressing portion 29 presses the elastic sheet 9 over substantially the entire surface by the flattened bottom surface being brought into contact with the elastic sheet 9.

  In the pressing member 10, a holding hole 30 in which the needle 11 and the holding member 12 are slidably held is formed in the pressing portion 29. The holding hole 30 closes the stopper device 4 by protruding the tip portion 11a of the needle 11 at the bottom portion on the closed end side, and opens the stopper device 4 when the tip portion 11a of the needle 11 is pulled out. A jet port 30a for jetting carbon dioxide gas is drilled with a drill or the like. The holding hole 30 is provided with a stepped portion 30 b corresponding to the stepped portion 26 a provided on the outer periphery of the body portion 26, and restricts the sliding range of the holding member 12 that holds the needle 11.

  In such a pressing member 10, the body portion 26 is inserted into the body portion 20 of the housing 8 and the flange portion 27 is disposed in the housing by screwing the screw groove 28 with the screw groove 23 provided on the inner periphery of the housing 8. 8 flange portions 21. At this time, in the pressing member 10, the pressing portion 29 presses the elastic sheet 9 disposed in the body portion 20 of the housing 8 with a predetermined pressure.

  The needle 11 that closes the carbon dioxide cartridge cylinder 5 has a pointed end 11 a protruding from a jet port 30 a formed in the pressing portion 29 of the pressing member 10 and a perforation 9 a of the elastic sheet 9. As a result, the needle 11 opens the perforations 9a in the elastic sheet 9, and closes the opening device 4 by being pushed up by the jet ports 30a and the perforations 9a, so that the carbon dioxide gas filled in the carbon dioxide cartridge cylinder 5 is discharged. Stop the spill. When the needle 11 closes the opening device 4, the pointed portion 11 a is also inserted into the gas hole 8 a of the housing 8.

  The needle 11 has a nickel coating on the surface. Thereby, the needle 11 is improving the rust prevention effect and adhesiveness with the jet nozzle 30a.

  The holding member 12 that holds the needle 11 and opens and closes the carbon dioxide cartridge cylinder 5 includes a base end portion 32 provided with a holding hole 31 that is formed in a cylindrical shape and holds a sharp body having a columnar body, A shaft portion 33 extending on the upper portion of the base end portion 32 is formed. Further, the holding member 12 is formed with a step by forming the shaft portion 33 to be smaller in diameter than the base end portion 32, and one end of the torsion coil spring 13 that urges the needle 11 toward the carbon dioxide cartridge cylinder 5 is locked. A spring locking portion 35 is provided.

  Further, the holding member 12 is provided with a ring groove 37 to which the O-ring 36 is attached by forming a circumferential groove above the shaft portion 33. The O-ring 36 is attached to the ring groove 37 so as to be in close contact with the periphery of the opening 51 of the head cap 16 and prevent the carbon dioxide gas from leaking upward from the head cap 16 and guides it to the conduit 42 a of the nozzle portion 42.

  The holding member 12 has a shaft portion 33 facing the upper surface 16 a of the head cap 16, and a locking cap 34 that is locked to an operation lever 60 described later is attached to the tip of the holding member 12. The locking cap 34 is formed of a cylindrical body, and a mounting hole 40 having an inner diameter substantially the same as the outer diameter of the shaft portion 33 is formed. One end of the operation lever 60 of the operation member 14 to be described later is locked to the outer edge of the bottom surface where the mounting hole 40 is provided, and the locking cap 34 is moved up and down together with the holding member 12 according to the rotation of the operation lever 60. Is done.

  The holding member 12 is inserted into the holding hole 30 of the pressing member 10, and the tip end portion of the shaft portion 33 is supported by the opening 51 of the head cap 16, so that the needle 11 is ejected from the ejection port 30 a of the pressing member 10. Opposite to the perforation 9a of the elastic sheet 9, the needle 11 is supported so that it can be lifted and lowered without shaking. Therefore, the holding member 12 can always protrude the needle 11 to the jet outlet 30a and the perforation 9a, and can prevent the gas leakage caused by gradually expanding the jet outlet 30a and the perforation 9a by the lifting operation.

  The torsion coil spring 13 locked to the spring locking portion 35 of the holding member 12 is inserted into the outer peripheral portion of the shaft portion 33 of the holding member 12 so that one end is locked to the spring locking portion 35 and the other end. Is locked to the inner surface of the flow path plate 15 disposed in the head cap 16. Thus, the torsion coil spring 13 biases the holding member 12 toward the opening 6 of the carbon dioxide cartridge cylinder 5.

  Therefore, in the holding member 12, the needle 11 is always pushed by the urging force of the torsion coil spring 13 to the ejection port 30a of the pressing member 10 and the perforation 9a of the elastic sheet 9, and the carbon dioxide gas ejected into the carbon dioxide cartridge cylinder 5 is ejected. To stop. In the holding member 12, the needle 11 is separated from the opening 6 of the carbon dioxide cartridge cylinder 5 against the urging force of the torsion coil spring 13 by rotating an operation lever 60 of the operation member 14 described later. The needle 11 is pulled out from the ejection port 30a and the perforation 9a, and carbon dioxide gas is ejected. The ejected carbon dioxide gas flows into the holding hole 30 through the gas hole 8a, the perforation 9a, and the jet outlet 30a of the housing 8, and passes through the nozzle part 42 of the flow path plate 15 and the gas jet outlet 73 of the top cover 70 to the outside. To be discharged.

  Further, when the operation lever 60 is released, the holding member 12 is urged toward the carbon dioxide cartridge cylinder 5 by the urging force of the torsion coil spring 13, and the pointed end portion 11a of the needle 11 projects into the ejection port 30a and the perforation 9a. Stood and stopped blowing carbon dioxide.

  The flow path plate 15 guides carbon dioxide gas from the holding hole 30 of the pressing member 10 to the gas outlet 73 of the top cover 70, and is disposed on the flange portion 27 of the pressing member 10 and in the head cap 16. It is stored. The flow path plate 15 has a disk-shaped plate main body 41, and a nozzle portion 42 in which a flow path of carbon dioxide gas is formed on the plate main body 41.

  The plate body 41 is formed with a circular opening 41a through which the shaft portion 33 of the holding member 12 is inserted at a substantially central portion. The nozzle part 42 is formed with a pipe line 42 a having one end facing the back surface of the plate body 41 and the other end facing the tip of the nozzle part 42. Further, the nozzle portion 42 is provided with a ring groove 43 on the outer peripheral portion, and an O-ring 44 is attached to the ring groove 43.

  Further, the plate body 41 is formed with a locking projection 45 on the surface opposite to the surface on which the nozzle portion 42 is projected so that the other end of the torsion coil spring 13 is locked along the periphery of the circular opening 41a. ing.

  In the flow path plate 15, the plate body 41 is disposed on the flange portion 27 of the pressing member 10, whereby the shaft portion 33 of the holding member 12 is inserted into the circular opening 41 a and the nozzle portion 42 is the head cap. When the head cap 16 is attached to the opening 6 of the carbon dioxide cartridge cylinder 5 while being inserted into the opening 54 formed in the upper surface 16a of the 16, the head cap 16 is sandwiched between the pressing member 10. . At this time, the flow path plate 15 has the nozzle portion 42 continuous with the holding hole 30 of the pressing member 10.

  The head cap 16 has a hollow cylindrical shape with one end closed, and a screw groove 50 is formed on the inner peripheral portion thereof to be screwed with the screw groove 7 formed in the opening 6 of the carbon dioxide cartridge cylinder 5. Yes.

  Further, the head cap 16 is provided with an opening 51 on the upper surface 16a so that the shaft portion 33 of the holding member 12 faces upward. The opening 51 can be lifted and lowered without shaking by holding the shaft portion 33 slidably through the opening 51. Further, the head cap 16 has a support hole 52 for rotatably supporting the support piece 64 of the operation lever 60 on the main surface of the upper surface 16a. The support hole 52 is formed of a rectangular recess, and a curved surface is formed at the bottom so as to be lifted at both ends in the longitudinal direction, and the operation lever 60 is rotatably supported. Further, the head cap 16 is provided with an opening 54 through which the nozzle portion 42 protruding from the flow path plate 15 is inserted in the main surface of the upper surface 16a.

  The head cap 16 is provided with a flange portion 53 protruding from the outer peripheral portion to which a top cover 70 described later is locked.

  In the head cap 16, a housing 8 is inserted into the opening 6 of the carbon dioxide cartridge cylinder 5, and a pressing member 10 having an elastic sheet 9 and a holding member 12 inserted in the housing 8 is mounted. Is inserted into the front end of the holding member 12 and the other end is brought into contact with the rear surface side of the flow path plate 15, the screw groove 50 is screwed into the screw groove 7 with the open end directed toward the opening 6. As a result, the head cap 16 accommodates and holds the housing 8, the pressing member 10, and the flow path plate 15 inside, and sandwiches them with the opening 6 of the carbon dioxide cartridge cylinder 5, so that the opening 6 is airtight by the housing 8. Obstructed.

  At this time, the shaft portion 33 of the holding member 12 protrudes from the opening 51 of the head cap 16, and the locking cap 34 is attached to the tip portion. Further, the nozzle portion 42 of the flow path plate 15 protrudes upward from the opening 54 of the head cap 16. Further, the head cap 16 urges the pressing member 10 toward the bottom side of the housing 8, thereby holding the elastic sheet 9 disposed in the housing 8 while being pressed by the pressing portion 29 of the pressing member 10. Further, the head cap 16 holds the holding member 12 in a state where the torsion coil spring 13 is compressed and the holding member 12 is urged toward the opening 6 side.

  Thereby, in the gas ejection device 1, the needle 11 held by the holding member 12 is thrust into the ejection port 30a of the pressing member 10 and the perforation 9a of the elastic sheet 9, and the ejection of carbon dioxide gas is prevented. In addition, the gas ejection device 1 causes the needle 11 and the perforation 9a of the elastic sheet 9 to be firmly adhered to each other by pushing the elastic sheet 9 pressed by the pressing member 10 at a predetermined pressure, so that the carbon dioxide gas leaks. It is definitely prevented.

  Next, the operation member 14 that ejects carbon dioxide in the carbon dioxide cartridge cylinder 5 by operating the holding member 12 that is biased toward the opening 6 will be described. The operation member 14 includes an operation lever 60 that is connected to the bottom of the nozzle 38 and is rotatably supported on the upper surface 16 a of the head cap 16, and an operation button 61 that presses one end 60 a of the operation lever 60.

  The operation lever 60 is formed of a substantially rectangular plate-like body, and one end 60a in the longitudinal direction is formed to be curved upward, and the other end 60b is inserted into the insertion hole through which the distal end portion of the shaft portion 33 of the holding member 12 is inserted. 62 and a pair of engaging pieces 63 and 63 engaged with the locking cap 34 attached to the holding member 12. The insertion hole 62 is formed by cutting out in a substantially U shape from the approximate center of the short side of the other end 60b of the operation lever 60 to the longitudinal direction. The engagement pieces 63 are formed on both sides of the insertion hole 62 by forming the insertion holes 62 in the other end 60 b of the operation lever 60.

  Further, the operation lever 60 has a pair of support pieces 64 that are supported by support holes 52 formed in the upper surface 16a of the head cap 16 described above and projecting downward from both side edges substantially in the middle of the longitudinal direction. The support piece 64 is supported by a support hole 52 having a distal end formed in an arc-shaped rectangular plate and a curved surface formed at the bottom, whereby the one end 60a and the other end 60b of the operation lever 60 are formed in a seesaw shape. It is possible to move up and down alternately.

  The operation button 61 that presses the one end 60a side of the operation lever 60 includes a columnar main body 61a and a pressing piece 61b that presses one end 60a of the operation lever 60 at the front end of the main body. The front end of the main body 61a is supported by the top cover 70 so that it can be pressed, and can be pressed by the user. The pressing piece 61b is opposed to the one end 60a of the operation lever 60, has a length substantially the same as the width direction of the one end 60a, and has a tip section formed in an arc shape.

  In the operation member 14, the operation lever 60 supports the support piece 64 in the support hole 52, and the front end of the holding member 12 is inserted into the insertion hole 62, whereby the upper surface of the engagement piece 63 and the holding member 12. The bottom surface of the locking cap 34 attached to the is opposed. When the head cap 16 is screwed into the opening 6 of the carbon dioxide cartridge cylinder 5, the operation lever 60 receives the biasing force of the torsion coil spring 13 and is slid to the opening 6 together with the holding member 12. The engaging piece 63 is pushed down to the opening 6 side by the cap 34. Therefore, one end 60a of the operation lever 60 is pivoted upward with the support piece 64 as a fulcrum, and the operation button 61 facing the one end 60a is pushed upward.

  When the user presses the main body 61a of the operation button 61 through the top cover 70 pressing button 77 by the user, the end 60a of the operating lever 60 pressed by the pressing piece 61b of the operating button 61 64 is pivoted downward with fulcrum 64 as the fulcrum, and the other end 60b is pivoted upward. Therefore, in the operation member 14, the engagement piece 63 formed on the other end 60 b of the operation lever 60 pulls up the bottom surface of the locking cap 34 against the urging force of the torsion coil spring 13. As a result, the operation member 14 pulls the holding member 12 upward together with the locking cap 34, so that the pointed end 11 a of the needle 11 held by the holding member 12 is ejected from the outlet 30 a of the pressing member 10 and the perforation 9 a of the elastic sheet 9. The carbon dioxide gas can be ejected by pulling up more.

  Next, the cylinder housing 3 that houses the carbon dioxide cartridge cylinder 5 and the opening device 4 will be described. The cylinder housing 3 includes a top cover 70 attached on the head cap 16 and a body 71 for storing the carbon dioxide cartridge cylinder 5. In the cylinder housing 3, a top cover 70 and a body 71 are formed of a thermoplastic resin such as an ABS resin.

  The top cover 70 is provided with a gas jet port 73 for jetting carbon dioxide gas and an operation unit 74 that is pressed by a user, in a cylindrical body provided in a substantially dome shape and provided at the zenith portion. In the gas outlet 73, the tip of the nozzle part 42 protruding on the upper surface 16a of the head cap 16 is inserted into one end facing the inside of the top cover 70, and the jet nozzle 75 is attached to the other end facing outward. Further, the operation unit 74 is provided with a recess 76 on the upper surface 70 a of the top cover 70, and a press button 77 is provided in the recess 76. An opening 78 through which the main body 61 a of the operation button 61 protrudes is formed in the recess 76. The press button 77 is connected to the main body 61 a protruding on the concave portion 76 through the opening 78, and the operation button 61 can be pressed. The top cover 70 is formed with a locking projection 79 that is locked to the flange portion 53 of the head cap 16 on a part of the inner wall. The locking projection 79 has a tapered portion on the head cap 16 side and is formed to project in a bowl shape toward the upper surface 70a side, and is easily engaged with the flange portion 53 of the head cap 16 and has a structure that is difficult to come off. .

  The body 71 is formed of a cylindrical body whose both ends are open in the hand direction, and has a top cover 70 attached to the upper end and a bottom lid 80 attached to the lower end.

  In the cylinder housing 3, the carbon dioxide cartridge cylinder 5 is housed in the body 71 to which the bottom lid 80 is attached, and the top cover 70 is attached. As a result, the cylinder housing 3 is configured such that the locking projection 79 of the top cover 70 is locked to the flange 53 of the head cap 16 and the tip of the nozzle portion 42 protruding on the upper surface 16a of the head cap 16 and the gas jet. The outlet 73 is connected, and the tip of the main body 61 a of the operation button 61 protruding on the upper surface 16 a of the head cap 16 and the pressing button 77 are connected.

  In the gas ejection device 1 having the above configuration, the gas hole 8a of the housing 8 and the ejection port 30a of the pressing member 10 are previously drilled by a drill or the like at the time of shipment, and the elastic sheet 9 is perforated 9a by the needle 11. Is drilled, and the tip 11a of the needle 11 is protruded from the jet port 30a and the perforation 9a. As shown in FIG. 6, the opening device 4 of the gas ejection device 1 has the holding member 12 biased downward by a torsion coil spring 13. As a result, the opening device 4 is blocked by the ejection port 30a being projected from the pointed end portion 11a of the needle 11 held by the holding member 12 to stop the ejection of carbon dioxide gas, and the pointed end portion of the needle 11 The perforation 9a of the elastic sheet 9 is pushed through 11a under the pressure of the pressing member 10, so that the needle 11 and the perforation 9a are in close contact with each other to prevent the carbon dioxide gas from leaking.

  At this time, in the operation member 14, the operation lever 60 is pressed down on the bottom surface of the locking cap 34, which is always urged to the carbon dioxide cartridge cylinder 5 side together with the holding member 12 by the torsion coil spring 13. Accordingly, as shown in FIG. 6, the other end 60b is rotated downward with the support piece 64 as a fulcrum, and the one end 60a side is rotated upward. Therefore, the operation button 61 that is in contact with the one end 60a side of the operation lever 60 always pushes the main body 61a upward.

  Next, the operation | movement at the time of actual use of the gas ejection apparatus 1 is demonstrated. In use, in the gas ejection device 1, the ejection nozzle 75 is coupled to the gas ejection port 73 of the top cover 70, and the nozzle portion 42 and the ejection nozzle 75 are connected. Next, the body 71 of the gas ejection device 1 is gripped by the user with the ejection nozzle 75 directed toward the ejection target. Then, when the pressing button 77 is pressed by the user, as shown in FIG. 7, the pressing piece 61b of the operation button 61 moves downward, and one end 60a of the operating lever 60 engaged with the pressing piece 61b is connected to the support piece. 64 is pivoted downward with the fulcrum 64 as a fulcrum, and the other end 60b is pivoted upward. Accordingly, since the engaging piece 63 of the other end 60 b of the operation lever 60 pushes up the bottom surface of the locking cap 34, the holding member 12 to which the locking cap 34 is attached is also connected to the torsion coil spring 13. It is raised against the urging force and separated from the opening 6 of the carbon dioxide cartridge cylinder 5. Thereby, since the tip part 11a of the needle 11 supported by the holding member 12 is pulled up from the ejection port 30a and the perforation 9a, the gas ejection device 1 ejects the compressed carbon dioxide into the carbon dioxide cartridge cylinder 5. Is done.

  The ejected carbon dioxide gas flows into the holding hole 30 of the pressing member 10 through the perforation 9a of the elastic sheet 9 and the outlet 30a of the pressing member 10, and the flow path plate 15 whose one end faces the holding hole 30 It flows into the nozzle part 42 and is ejected from the ejection nozzle 75 through the gas ejection port 73 continuous with the pipe line 42 a of the nozzle part 42.

  Here, the gas ejection device 1 is held in a state where the elastic sheet 9 is pressed by the pressing member 10. As a result, the elastic sheet 9 always generates a stress S in the direction of the inner peripheral surface of the perforation 9a. Due to this stress S, the plug-opening device 4 can prevent the gas leakage by completely contacting the needle 11 and the perforation 9a when the carbon dioxide cartridge cylinder 5 is closed, and when the carbon dioxide cartridge cylinder 5 is opened. Since the internal pressure in the carbon dioxide cartridge cylinder 5 opposes the stress S of the elastic sheet 9, the gas passage can be secured without the perforation 9a being blocked by the stress S, and the carbon dioxide gas is ejected to the outside. be able to.

  The opening device 4 can adjust the amount of carbon dioxide ejected when the carbon dioxide cartridge cylinder 5 is opened by adjusting the diameter of the gas hole 8 a of the housing 8. That is, as shown in FIG. 8, the larger the diameter of the gas hole 8a of the housing 8, the greater the amount of carbon dioxide jet. On the other hand, the smaller the diameter of the gas hole 8a of the housing 8, the smaller the amount of carbon dioxide jet. Therefore, the gas ejection apparatus 1 can form a plurality of types with different carbon dioxide ejection amounts by using the housing 8 having different diameters of the gas holes 8a in advance according to the application.

  Further, as shown in FIGS. 9 and 10, the plug opening device 4 is a cylindrical cap member in which a gas hole having a smaller diameter than the gas hole 8 a continuous with the gas hole 8 a is formed on the outer side of the housing 8. By mounting 18, the gas hole 8a can be substantially narrowed and the gas flow rate can be adjusted.

  When the pressing of the pressing button 77 of the operation member 14 by the user is released, the holding member 12 is urged toward the carbon dioxide cartridge cylinder 5 by the urging force of the torsion coil spring 13. Therefore, the needle 11 held by the holding member 12 has a pointed end 11a protruding from the ejection port 30a and closes the carbon dioxide cartridge cylinder 5. Thereby, the ejection of the carbon dioxide gas from the ejection nozzle 75 is stopped. At this time, since the gas flow rate decreases as the needle 11 penetrates through the ejection port 30a, the elastic sheet 9 closes the perforations 9a because the stress S exceeds the pressure of carbon dioxide gas. Therefore, since the needle 11 is brought into close contact with the perforation 9a by the stress S of the elastic sheet 9 when the pointed end portion 11a is pierced through the perforation 9a of the elastic sheet 9, the leakage of carbon dioxide gas can be prevented.

  Further, the operating lever 60 has the engaging piece 63 at the other end 60b pressed against the bottom of the locking cap 34 urged to the carbon dioxide cartridge cylinder 5 side together with the holding member 12, and the engaging lever 63 serves as a fulcrum. The 60a side is rotated upward. Therefore, the operation button 61 engaged with the one end 60 a of the operation lever 60 moves the main body 61 a upward and pushes up the press button 77 engaged on the upper surface 70 a of the top cover 70 upward.

  As described above, in the gas ejection device 1, the carbon dioxide gas is filled in the carbon dioxide cartridge cylinder 5 made of the metal casing, and the holding member 12 is in the carbon dioxide cartridge cylinder when the ejection of the carbon dioxide gas is stopped. The tip 11 a of the needle 11 is urged toward the side 5 and thrusts into the spout 30 a of the pressing member 10 and the perforation 9 a of the elastic sheet 9. At this time, since the elastic sheet 9 is constantly pressed by the pressing member 10 and stress S is generated in the direction of closing the perforations 9a, the needle 11 and the perforations 9a are firmly adhered to each other, and carbon dioxide gas leaks. It can be surely prevented.

  Further, the elastic sheet 9 is sandwiched between the mounting portion 24 of the housing 8 and the pressing portion 29 of the pressing member 10 except for the perforations 9a, so that the contact portion with the carbon dioxide gas is only in the perforations 9a. . Therefore, the elastic sheet 9 is not deteriorated or deformed by contact with the carbon dioxide gas, or the stress S is changed at all, and no gas leakage occurs even when the gas ejection device 1 is repeatedly used.

  Further, even when the needle 11 is pulled out, the elastic sheet 9 opposes the stress S due to the pressure in the carbon dioxide cartridge cylinder 5, so that the gas flow path is secured without blocking the perforation 9 a, Can be ejected. That is, in the gas ejection device 1, the carbon dioxide gas filled in the carbon dioxide cartridge cylinder 5 not only functions as a target component of the dust blower that removes dust, but is also provided on the elastic sheet 9 of the opening device 4 and is closed. This is an indispensable element for providing a counter force for opening the perforation 9a in which the stress S is generated and securing the gas flow path. As a result, the gas ejection device 1 can use the elastic sheet 9 that can prevent the leakage of carbon dioxide gas when the perforation 9 a continuous with the ejection port 30 a is in close contact with the needle 11, and the elastic sheet 9 also generates carbon dioxide gas. Carbon dioxide can be ejected without blocking the channel.

  When the gas ejection device 1 is used as a liquid spraying device, for example, carbon dioxide in the cylinder is compatible with carbon dioxide such as paint for coating, lotion, liquid foundation, insecticide or food such as soy sauce and dressing. When applied to a device filled with a good liquid and sprayed with carbon dioxide, carbon dioxide functions as a medium for spraying these active ingredients to the outside, and also counteracts the perforations 9a to be opened during spraying. Functions as an element that gives

  As described above, the gas ejection device 1 can reliably perform carbon dioxide gas ejection control with a simple configuration in which the needle 11 is inserted and removed from the ejection port 30a and the perforation 9a.

  In the gas ejection device 1, when the carbon dioxide gas filled in the carbon dioxide cartridge cylinder 5 is almost ejected, the pressure in the carbon dioxide cartridge cylinder 5 becomes substantially the same as the atmospheric pressure, and the vaporized residual gas remains. The gas ejection device 1 is reused when liquefied carbon dioxide gas is supplied from a supply unit 85 provided at a lower portion of the carbon dioxide cartridge cylinder 5.

  Hereinafter, the supply part 85 provided in the lower part of the carbon dioxide cartridge cylinder 5 is demonstrated. As shown in FIGS. 11 and 12, the supply unit 85 includes a holder 87 attached to a supply port 86 opened at the bottom of the carbon dioxide cartridge cylinder 5, a sleeve 88 inserted into the holder 87, and a sleeve 88. A valve rod 89 which is disposed so as to be movable up and down and opens and closes the supply port 86, and a coil spring 90 which urges the valve seat 88c of the sleeve 88 are provided. The supply unit 85 keeps the inside of the carbon dioxide gas cartridge cylinder 5 airtight by the valve rod 89 being in close contact with the sleeve 88, and the sealing plate 81 is attached to the bottom cover 80 attached to the body 71 of the cylinder housing 3. Is not exposed to the outside.

  In the supply port 86, the bottom surface of the carbon dioxide cartridge cylinder 5 is raised upward, and the central portion of the bottom surface is opened in a circular shape. A holder 87 is attached to the supply port 86. The holder 87 holds the sleeve 88 into which the valve rod 89 is inserted, has a substantially hollow cylindrical shape, has one end in the longitudinal direction opened, and a top plate 91 is provided at the other end. A circular opening 92 is formed at the center of the top plate 91, and a sleeve 88 is inserted through the opening 92. Further, the holder 87 has a thread groove 93 into which the sleeve 88 is screwed along the circumferential direction on the inner peripheral wall. Further, the holder 87 is formed with an engaging step portion 94 engaged with the supply port 86 along the circumferential direction on the outer peripheral portion. The holder 87 is attached to the supply port 86 by inserting the lower side into the supply port 86 and locking the locking step 94 to the outer edge of the supply port 86.

  The sleeve 88 inserted into the holder 87 opens and closes the supply portion 85 by connecting and disconnecting the valve rod 89, and has a cylindrical shape with a substantially convex cross section. The sleeve 88 has a large-diameter base end portion 88 a and an insertion portion 88 b that protrudes above the base end portion 88 a and protrudes above the opening 92 of the holder 87.

  The base end portion 88a has a thread groove 96 that is screwed into a thread groove 93 provided in the holder 87 on the outer peripheral portion. The base end portion 88a is formed with a guide hole 97 into which the shaft portion 103 of the valve rod 89 is inserted. The insertion portion 88b is smaller in diameter than the base end portion 88a and has substantially the same diameter as the opening 92 of the holder 87. The insertion portion 88b is formed with a hollow portion 98 in which a valve rod 89, a coil spring 90 that urges the valve rod 89, and a sealing plate 100 that presses the coil spring 90 are disposed. In the sleeve 88, the guide hole 97 and the hollow portion 98 are continuous, and the hollow portion 98 is made larger in diameter than the guide hole 97, so that a step is formed at the boundary portion, and the valve rod 89 is locked. A valve seat 88c is provided. The sleeve 88 is formed with a locking groove 99 in which the sealing plate 100 is locked along the circumferential direction on the inner wall of the hollow portion 98.

  In the sleeve 88, the insertion portion 88b is inserted into the opening 92 of the holder 87, and the gasket 101 is interposed between the top plate 91 and the upper surface of the base end portion 88a, so that the screw groove 96 is screwed into the screw groove 93. Combined. As a result, the sleeve 88 has the guide hole 97 facing outward from the bottom surface of the carbon dioxide cartridge cylinder 5 and becomes a connecting portion with a gas filling device 120 described later, and the liquefied carbon dioxide is passed through the guide hole 97 and the hollow portion 98. Gas is supplied into the carbon dioxide cartridge cylinder 5.

  Further, when the valve rod 89 is inserted into the hollow portion 98 and the guide hole 97, the sleeve 88 closes the guide hole 97 while the head portion 104 of the valve rod 89 is in close contact with the valve seat portion 88c, and the shaft of the valve rod 89 The tip of the portion 103 protrudes downward from the guide hole 97 and faces the outside from the lower surface of the base end portion 88a.

  Next, a valve rod 89 that is inserted through the sleeve 88 and opens and closes the supply unit 85 will be described. The valve stem 89 is formed of a hollow cylindrical body having a substantially T-shaped cross section, and includes a shaft portion 103 that is inserted through the guide hole 97 of the sleeve 88 and a head portion 104 that is formed at the upper end of the shaft portion 103. . The valve stem 89 is formed with a hollow portion communicating in the longitudinal direction through the shaft portion 103 and the head portion 104 and with both ends open. The valve stem 89 has a shaft portion 103 having a smaller diameter than the head portion 104, and a step portion is formed between the shaft portion 103 and the head portion 104. A screw groove 105 is formed on the outer periphery of the head portion 104, and a cap member 106 is screwed into the screw groove 105.

  The cap member 106 is moved up and down integrally with the valve stem 89 by being screwed into the head portion 104. The cap member 106 is formed of a hollow cylindrical body, and a screw groove 107 that is screwed into the screw groove 105 of the head portion 104 is formed on the inner peripheral portion. The cap member 106 is screwed with the head portion 104 to sandwich the safety valve 108 and the O-ring 109 with the head portion 104.

  As the safety valve 108, a burst disk is used, and when the internal pressure in the carbon dioxide cartridge cylinder 5 is abnormally increased due to the change in the environment of the gas jetting device 1 during the supply of the liquefied carbon dioxide gas or after the supply. The carbon dioxide gas in the carbon dioxide cartridge cylinder 5 is ruptured and discharged to the outside through the inside of the valve rod 89, thereby preventing an accident such as damage to the carbon dioxide cartridge cylinder 5 or the opening device 4 or the like.

  The O-ring 109 ensures airtightness between the guide hole 97 and the hollow portion 98 of the sleeve 88 by bringing the head portion 104 of the valve rod 89 into close contact with the valve seat portion 88c of the sleeve 88.

  When the valve rod 89 on which the safety valve 108 and the O-ring 109 are mounted by screwing the cap member 106 is inserted into the guide hole 97 and the hollow portion 98 of the sleeve 88, a coil spring 90 is formed on the upper surface of the cap member 106. One end of each is abutted. The coil spring 90 presses the head portion 104 of the valve rod 89 against the valve seat portion 88c so as to make airtight between the guide hole 97 and the hollow portion 98, and the other end is brought into contact with the sealing plate 100. The valve rod 89 is constantly pressed downward.

  The sealing plate 100 against which the other end of the coil spring 90 abuts is inserted into the insertion portion 88b which is erected from the main surface portion 111 made of a disk having the same diameter as the insertion portion 88b of the sleeve 88 and the main surface portion 111. And an outer peripheral wall 112. The main surface portion 111 is provided with a communication port 113 that allows the inside of the insertion portion 88b and the carbon dioxide cartridge cylinder 5 to be continuous in the center. The outer peripheral wall 112 is formed with a locking projection 114 which is locked in a locking groove 99 provided on the inner periphery of the insertion portion 88b along the circumferential direction. The sealing plate 100 is connected to the sleeve 88 by inserting the outer peripheral wall 112 into the sleeve 88 and locking the locking projection 114 in the locking groove 99. As a result, the sealing plate 100 presses the coil spring 90 whose other end is in contact with the inner side of the outer peripheral wall 112.

  In the supply portion 85 as described above, when the valve rod 89 is pressed downward by the coil spring 90, the head portion 104 of the valve rod 89 is brought into close contact with the valve seat portion 88 c of the sleeve 88, and the guide hole 97 and the hollow portion 98. Is disconnected by the valve rod 89. As a result, the supply portion 85 closes the supply path of the liquefied carbon dioxide gas, and the carbon dioxide gas filled in the carbon dioxide cartridge cylinder 5 may leak outside from the hollow portion 98 of the sleeve 88 through the guide hole 97. It is prevented. At this time, the valve stem 89 is pressed downward by the coil spring 90 so that the shaft portion 103 protrudes downward from the guide hole 97 of the sleeve 88.

  Further, as shown in FIG. 13, when the shaft portion 103 of the valve rod 89 is pressed upward against the urging force of the coil spring 90 by the gas filling device 120, the supply portion 85 causes the head portion 104 to move to the valve seat portion 88c. The supply path for the liquefied carbon dioxide gas is opened by further separating the hollow portion 98 and the guide hole 97 from each other. Accordingly, the supply unit 85 supplies the liquefied carbon dioxide gas supplied from the guide hole 97 into the carbon dioxide cartridge cylinder 5 through the hollow portion 98 and the communication port 113 of the sealing plate 100.

  Next, the gas filling device 120 that supplies liquefied carbon dioxide gas from the supply unit 85 into the carbon dioxide cartridge cylinder 5 will be described. As shown in FIGS. 14 and 15, the gas filling device 120 is erected on a gas cylinder 121 filled with liquefied carbon dioxide gas, a base 122 on which the gas ejection device 1 is placed, and a base 122. A socket 123, a storage case 124 in which the gas ejection device 1 is accommodated, a joint 125 connected to the socket 123 and connected to the supply portion 85 of the gas ejection device 1 accommodated in the storage case 124, and an interior of the storage case 124 And an upper lid 126 that presses the pressing button 77 of the gas ejection device 1 housed in the housing. The gas filling device 120 stores the gas ejection device 1 in the storage case 124 so that the supply portion 85 of the carbon dioxide cartridge cylinder 5 and the joint 125 are connected, and a digital scale such as a load cell provided on the base 122 is connected. The liquefied carbon dioxide gas is supplied from the gas cylinder 121 into the carbon dioxide cartridge cylinder 5 until it reaches a predetermined weight.

  The gas cylinder 121 is filled with liquefied carbon dioxide gas, a main valve 130 is provided at the upper portion, and a gas hose 131 is extended to the main valve 130. The gas hose 131 is a pressure-resistant hose, and a hose valve 132 and a nozzle portion 133 that is opened and closed by the hose valve 132 are formed at the tip. The nozzle portion 133 is inserted into the insertion hole 122 a of the base 122, protrudes from the upper surface of the base 122, has a thread groove 133 a on the outer periphery, and is screwed into the socket 123. The nozzle part 133 is fixed to the back side of the base 122 via a socket 123.

  The socket 123 screwed to the nozzle part 133 supports the storage case 124 on the upper surface of the base 122, and the nozzle part 133 extended from the main valve 130 and the joint 125 are connected to the nozzle part 133. And the joint 125 are made continuous. The socket 123 is formed of a cylindrical member whose both ends in the longitudinal direction are open, and a flange portion 135 is formed at the approximate center in the longitudinal direction. The socket 123 is inserted into the insertion hole 122a of the base 122 so that the flange portion 135 is locked to the insertion hole 122a. The lower surface facing the lower surface of the insertion hole 122a is a nozzle on the inner peripheral side. A screw groove 136 that is screwed with the screw groove 133a of the portion 133 is formed, and a screw groove 137 into which the nut 134 is screwed is formed on the outer peripheral side. In addition, the socket 123 has a thread groove 138 on the upper side facing the upper surface of the base 122, into which the joint 125 is screwed. Further, the socket 123 is also formed with a screw groove 139 into which the storage case 124 is screwed on the outer periphery of the flange portion 135.

  The joint 125 that is screwed into the socket 123 is inserted into a holder 87 provided at the lower end of the carbon dioxide cartridge cylinder 5 to push the valve rod 89 upward and supply liquefied carbon dioxide gas into the carbon dioxide cartridge cylinder 5. The supply path is opened. The joint 125 is formed of a cylindrical member whose both ends in the longitudinal direction are open, and a flange portion 141 that is engaged with the upper surface of the socket 123 is provided at the approximate center in the longitudinal direction. The joint 125 has a shaft support portion 125a supported by the socket 123 at a lower side than the flange portion 141, and a screw groove 142 that is screwed with the screw groove 138 of the socket 123 is formed on the outer periphery. Further, the joint 125 has a connecting portion 125 b that is connected to the supply portion 85 of the carbon dioxide cartridge cylinder 5 above the flange portion 141. In the connecting portion 125b, the tip inside the cylinder that becomes the flow path of the liquefied carbon dioxide gas is divided into four, and four discharge holes are formed. In addition, the coupling portion 125b is provided with a packing 145 made of, for example, Teflon (trade name) at the end of the cylinder.

  In the joint 125, when the shaft support portion 125 a is supported by the socket 123 and the gas ejection device 1 is stored in the storage case 124, the connecting portion 125 b passes through the bottom cover 80 and the supply port 86, and the shaft portion of the valve rod 89 is inserted. 103 and the packing 145. As a result, the gas filling device 120 includes the nozzle portion 133 of the gas hose 131 and the valve rod 89 of the carbon dioxide cartridge cylinder 5 that are continuous, and the carbon dioxide cartridge cylinder 5 is integrated with the gas hose 131 that extends from the gas cylinder 121. In addition, since the connection part 125b is contact | abutted with the axial part 103 of the valve stem 89 via the packing 145, even if the cylinder housing | casing 3 is pushed down by the upper cover 126 mentioned later, it will not be damaged.

  The storage case 124 supported on the upper surface of the base 122 by the socket 123 stores the gas ejection device 1 and is filled with liquefied carbon dioxide gas, and is made of a cylindrical member whose both ends in the longitudinal direction are open. The storage case 124 is closed by the upper lid 126 after the gas ejection device 1 is stored. A thread groove 146 into which the upper lid 126 is screwed is formed at the upper end of the storage case 124. Further, the storage case 124 has a screw groove 147 that is screwed into a screw groove 139 formed in the flange portion 135 of the socket 123 on the inner periphery on the lower end side.

  Inside the storage case 124, a support base 149 that supports the lower end of the gas ejection device 1 and a coil spring 150 that elastically supports the support base 149 are disposed. The support base 149 is a hollow cylindrical member having substantially the same diameter as the inside of the storage case 124, and the lower surface side is open. Moreover, the support base 149 is arrange | positioned under the storage case 124, and the bottom face of the gas ejection apparatus 1 is mounted. The support base 149 has an opening 149a at the center of the upper surface, and a connecting portion 125b of the joint 125 is inserted therethrough so as to protrude upward. As a result, when the gas ejection device 1 is placed, the support base 149 supports the periphery except for the supply section 85, and the supply section 85 and the joint 125 are connected via the support base 149.

  The coil spring 150 that elastically supports the support base 149 has one end in contact with the back side of the upper surface of the support base 149 and the other end in contact with the flange portion 135 of the socket 123. Thus, when the gas ejection device 1 is housed in the housing case 124, the coil spring 150 elastically supports the support base 149 and softens the contact between the connecting portion 125 b of the joint 125 and the shaft portion 103 of the valve stem 89. Further, when the gas ejection device 1 is extracted from the storage case 124, the coil spring 150 urges the support base 149 upward and waits for the gas ejection device 1 to be stored again. At this time, the support base 149 stands by in a state where the connecting portion 125b of the joint 125 protrudes upward from the opening 149a.

  The upper lid 126 that closes the housing case 124 in which the gas ejection device 1 is housed presses the cylinder housing 3 downward when filling the liquefied carbon dioxide gas to bring the joint 125 and the valve rod 89 into contact with each other. The opening button 4 is opened by pressing the pressing button 77 of the ejection device 1. The upper lid 126 is formed of a hollow cylindrical body having an open lower end, and a screw groove 151 that is screwed into the screw groove 146 of the storage case 124 is formed in the inner peripheral portion. Further, the upper lid 126 is provided with an opening button 152 on its upper surface that presses the pressing button 77 of the gas ejection device 1 to open the opening device 4. The opening button 152 includes a pressing shaft 153 that presses the pressing button 77 and an operation knob 154 that rotates the pressing shaft 153.

  The pressing shaft 153 includes a shaft portion 153 a that is inserted into a shaft hole 155 formed in the upper surface of the upper lid 126, and a contact portion 153 b that is provided at the tip of the shaft portion and contacts the pressing button 77. The shaft portion 153 a is formed with a screw groove on the outer periphery, and is raised and lowered while being screwed with a screw groove 156 formed on the inner periphery of the shaft hole 155 of the upper lid 126 according to the operation of the operation knob 154. The abutting portion 153b is opposed to the pressing button 77 of the gas ejection device 1, and when the shaft portion 153a is lowered, the pressing button 77 is pressed to open the plug opening device 4, and when the shaft portion 153a is raised, the pressing portion 77 is pressed. The pressing of the button 77 is released, and the opening device 4 is closed. The operation knob 154 is attached to the tip of the shaft portion 153a of the pressing shaft 153, and moves up and down the pressing shaft 153 when rotated by the user.

  The upper lid 126 is provided with a packing 157 on the back side of the upper surface. The packing 157 protects the upper surface 70 a of the top cover 70 because the upper surface of the upper lid 126 and the top cover 70 of the gas ejection device 1 come into contact with each other when the upper lid 126 is attached to the storage case 124.

  The upper lid 126 closes the storage case 124 by screwing the screw groove 146 of the storage case 124 in which the gas ejection device 1 is stored and the screw groove 156 formed in the inner peripheral portion. At this time, the gas ejection device 1 is positioned above the storage case 124 by the support base 149 elastically supported by the coil spring 150, and is connected to the joint 125b of the joint 125 protruding upward from the opening 149a of the support base 149. The amount of protrusion is short. Therefore, the valve rod 89 is maintained in a state in which the head portion 104 pressed by the coil spring 90 and the valve seat portion 88c of the sleeve 88 are in close contact with each other.

  Thereafter, when the upper lid 126 is attached to the storage case 124, the gas ejection device 1 is pressed against the upper surface of the upper lid 126, so that the support case 149 elastically supported by the coil spring 150 is pressed down and the storage case 124 is lowered. The Therefore, in the gas ejection device 1, the connecting portion 125 b of the joint 125 protruding above the support base 149 pushes up the shaft portion 103 of the valve rod 89 against the biasing force of the coil spring 90, and the head of the valve rod 89 The portion 104 and the valve seat portion 88c of the sleeve 88 are separated from each other. As a result, in the gas ejection device 1, the carbon dioxide cartridge cylinder 5 and the gas filling device 120 are connected, and a supply path for liquefied carbon dioxide gas is formed. Thereafter, when charging of the liquefied carbon dioxide gas starts, the gas ejection device 1 is operated to rotate the operation knob 154, and when the pressing shaft 153 is lowered, the plug opening device 4 is opened.

  Next, a filling operation of liquefied carbon dioxide using the gas filling device 120 will be described. When the liquefied carbon dioxide gas is used up, the gas ejection device 1 is re-used by being refilled with the liquefied carbon dioxide gas by the gas filling device 120. In this refilling process, the gas ejection device 1 is filled with the liquefied carbon dioxide gas by the gas filling device 120 from the supply unit 85 provided at the lower end of the carbon dioxide cartridge cylinder 5 and provided at the upper end of the carbon dioxide cartridge cylinder 5. The opened stopper 4 is opened, and the gas remaining in the carbon dioxide cartridge cylinder 5 is discharged.

  Specifically, in the gas filling device 120, the upper lid 126 is removed from the storage case 124, and the gas ejection device 1 is stored in the storage case 124. At this time, the cylinder housing 3 has the sealing plate 81 removed in advance, and the supply portion 85 faces outward. Next, the upper lid 126 is attached to the storage case 124 and is closed until it comes into contact with the upper surface 70 a of the top cover 70 of the gas ejection device 1. In the gas filling device 120, the main valve 130 of the gas cylinder 121 is opened. In this state, the digital balance attached to the base 122 is set to zero.

  At this time, the cylinder housing 3 is supported by a support base 149 that is elastically supported on the lower side of the storage case 124, and the shaft portion 103 of the valve rod 89 is not pressed by the connecting portion 125 b of the joint 125. The valve seat portion 88c of the sleeve 88 and the head portion 104 are brought into close contact with each other by a coil spring 90, and the supply path for the liquefied carbon dioxide gas is closed.

  Next, the upper lid 126 is further closed by several millimeters from the state in contact with the upper surface 70 a of the top cover 70 of the gas ejection device 1, and the cylinder housing 3 is pressed below the storage case 124 against the urging force of the coil spring 150. To do. As a result, in the gas ejection device 1, the shaft portion 103 of the valve rod 89 is pushed up from below by the connecting portion 125b of the joint 125, so the head portion 104 and the valve seat portion 88c of the sleeve 88 are separated from each other, and the carbon dioxide cartridge cylinder The supply path of the liquefied carbon dioxide gas into 5 is made.

  Next, the hose valve 132 of the gas cylinder 121 is opened, and the carbon dioxide cartridge cylinder 5 is filled with liquefied carbon dioxide gas. Next, by rotating the operation knob 154 to lower the shaft portion 153a of the pressing shaft 153 and pressing the pressing button 77 of the gas ejection device 1 and operating the operating member 14, the perforation 9a and the pressing member of the elastic sheet 9 are operated. The needle 11 protruding from the 10 outlets 30a is pulled out to open the plug opening device 4. As a result, in the gas ejection device 1, the vaporized gas remaining in the carbon dioxide cartridge cylinder 5 is extracted through the opening device 4 as the liquefied carbon dioxide gas is filled.

  When the digital balance detects that the liquefied carbon dioxide has been filled up to the set weight, the hose valve 132 and the main valve 130 are closed, and the operation knob 154 is rotated to raise the pressing shaft 153 and eject the needle 11. The stopper device 4 is closed by pushing the outlet 30a and the perforation 9a. As a result, in the gas ejection device 1, the carbon dioxide cartridge cylinder 5 is filled with a predetermined amount of liquefied carbon dioxide. Further, since the gas ejection device 1 is filled with liquefied carbon dioxide gas under high pressure in the carbon dioxide cartridge cylinder 5, it is generated in the perforation 9a when the elastic sheet 9 of the opening device 4 is pressed by the pressing member 10. Even when the needle 11 is pulled out from the ejection port 30a and the perforation 9a, the carbon dioxide gas can be ejected without the perforation 9a being blocked by the stress. Thereafter, the upper lid 126 is removed, and the cylinder housing 3 is taken out from the storage case 124.

  According to the gas filling device 120 as described above, the gas ejection device 1 is configured so that the liquefied carbon dioxide gas is not newly filled in the state where the carbon dioxide gas remaining in the carbon dioxide cartridge cylinder 5 remains. As the liquefied carbon dioxide gas is filled from 85, the remaining gas is discharged to the outside through the opening device 4. Therefore, according to this refilling step, the remaining gas in the carbon dioxide cartridge cylinder 5 is exhausted, and the injection of the liquefied carbon dioxide gas is not hindered, and the loss of the liquefied carbon dioxide gas is minimized in a short time. Thus, the carbon dioxide cartridge cylinder 5 can be refilled.

  In the gas filling device 120, the nozzle portion 133 of the gas hose 131 and the carbon dioxide cartridge cylinder 5 are connected via the socket 123 and the joint 125, so that the gas cylinder 121 and the carbon dioxide cartridge cylinder 5 are integrated via the gas hose 131. It becomes. Therefore, the gas filling device 120 refills the liquefied carbon dioxide gas into the carbon dioxide cartridge cylinder 5 only by opening the main valve 130 and the hose valve 132, and does not require a facility for cooling the carbon dioxide gas. The gas cartridge cylinder 5 can be refilled with liquefied carbon dioxide gas. For this reason, the gas filling process to the gas jetting apparatus 1 using the gas filling apparatus 120 does not require equipment for cooling the carbon dioxide gas in a high-pressure atmosphere. Therefore, the gas filling apparatus 120 includes the gas filling apparatus 120 and the gas cylinder 121 from a gas company or the like. Liquefied carbon dioxide gas can be easily refilled even in stores with a system that can be supplied from time to time.

  Moreover, the filling process of the liquefied carbon dioxide gas into the carbon dioxide cartridge cylinder 5 using the gas filling apparatus 120 described above is not only performed when the liquefied carbon dioxide gas is refilled in the used gas ejection apparatus 1 but also the gas ejection. It can also be used in the manufacturing process of the device 1. Also in this case, the filling process of liquefied carbon dioxide gas is performed in the same manner as described above. By opening the plug opening device 4, the liquefied carbon dioxide gas is filled while exhausting the air remaining in the carbon dioxide gas cartridge cylinder 5. In addition, the filling can be performed at room temperature in a short time and while suppressing the loss of liquefied carbon dioxide.

It is an external appearance perspective view which shows the gas ejection apparatus with which this invention was applied. It is a disassembled perspective view which shows the stopper apparatus to which this invention was applied. It is a disassembled perspective view which shows the gas ejection apparatus with which this invention was applied. It is sectional drawing which shows the gas ejection apparatus with which this invention was applied. It is a figure for demonstrating the opening-and-closing mechanism of the gas ejection apparatus with which this invention was applied, (a) shows the state which the needle has pierced the perforation of the elastic sheet, and has stopped gas ejection, (b) is a needle Shows a state in which gas is ejected from the perforations of the elastic sheet. It is sectional drawing which shows the stopper apparatus to which this invention was applied, and shows the state by which gas ejection is stopped. It is sectional drawing which shows the plug opening apparatus with which this invention was applied, and shows the state by which the gas is ejected. It is a figure for demonstrating the structure from which the amount of gas ejection differs according to the diameter of a gas hole. It is a disassembled perspective view which shows the gas ejection apparatus which attached the cap member which adjusts a gas flow rate. It is sectional drawing which shows the gas ejection apparatus which attached the cap member which adjusts a gas flow rate. It is a disassembled perspective view which shows a supply part. It is sectional drawing which shows the supply part with which the supply path | route of liquefied carbon dioxide gas was obstruct | occluded. It is sectional drawing which shows the supply part by which the supply path of liquefied carbon dioxide gas was open | released. It is a disassembled perspective view which shows a gas filling apparatus. It is a perspective view which shows the gas filling apparatus with which the gas ejection apparatus was accommodated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gas ejection apparatus, 2 apparatus main body, 3 cylinder housing | casing, 4 opening apparatus, 5 carbon dioxide cartridge cylinder, 6 opening part, 8 housing, 8a gas hole, 9 elastic sheet, 9a perforation, 10 pressing member, 11 needle, DESCRIPTION OF SYMBOLS 12 Holding member, 13 Torsion coil spring, 14 Operation member, 15 Flow path plate, 16 Head cap, 30a Spout, 85 Supply part, 86 Supply port, 87 Holder, 88 Sleeve, 89 Valve rod, 90 Coil spring, 120 Gas filling device 121 Gas cylinder, 122 Base, 123 Socket, 124 Storage case, 125 Joint, 126 Top cover

Claims (8)

In the opening device for opening and closing the pressurized fluid container filled with the pressurized fluid,
A sealing member provided with a jet port through which the pressurized fluid is jetted;
A sharpened body that stops the ejection of the pressurized fluid by the pointed portion protruding from the ejection port, and ejects the pressurized fluid by the tip end portion being pulled out from the ejection port;
An operating member for raising and lowering the sharpened body relative to the jet port;
An elastic sheet provided with a perforation that is pressed and held on the moving locus of the sharpened body and is inserted into the pointed portion;
An unplugging device in which the sharpened body and the perforation are brought into close contact with each other by ejecting the pressurized fluid from the perforation when the sharpened body is pulled out from the perforated, and the sharp body is thrust into the perforated. A hollow portion having one end opened and the other end closed is formed, the elastic sheet and the sealing member are disposed, and a gas hole is formed, which is attached to the opening of the pressurized fluid container. A housing,
2. The plug opening device according to claim 1, wherein an amount of the pressurized fluid ejected is adjusted according to a diameter of the gas hole.   The opening device according to claim 1, wherein the perforation is formed by the elastic sheet being pierced by the sharpened body.   When the pressurized fluid container is filled with the pressurized fluid, when the sharpened body is pulled out, a pressure that opposes the stress generated in the perforations is applied to the perforations. The opening device according to claim 1.   The opening device according to claim 1, wherein only the perforations of the elastic sheet are in contact with the pressurized fluid. A cylinder filled with pressurized fluid;
A sealing member that closes the cylinder and is provided with an outlet for the pressurized fluid;
A sharpened body that stops the ejection of the pressurized fluid by the pointed portion protruding from the ejection port, and ejects the pressurized fluid by the tip end portion being pulled out from the ejection port;
An operating member for raising and lowering the sharpened body relative to the jet port;
An elastic sheet provided with a perforation that is pressed and held on the moving locus of the sharpened body and is inserted into the pointed portion;
In the elastic sheet, stress is generated in a direction in which the perforation is closed when the sharp body is pulled out from the perforation, and the perforation is brought into close contact with the sharp body by being thrust into the perforation. Pressurized fluid cylinder device. A pressurized fluid;
A cylinder filled with the pressurized fluid;
A sealing member that closes the cylinder and is provided with an outlet for the pressurized fluid;
A sharpened body that stops the ejection of the pressurized fluid by the pointed portion protruding from the ejection port, and ejects the pressurized fluid by the tip end portion being pulled out from the ejection port;
An operating member for raising and lowering the sharpened body relative to the jet port;
An elastic sheet provided with a perforation that is pressed and held on the moving locus of the sharpened body and is inserted into the pointed portion;
The pressurized fluid cylinder device in which the sharpened body and the perforation are brought into close contact with each other by ejecting the pressurized fluid from the perforated when the sharpened body is pulled out from the perforated, and the sharpened body is thrust into the perforated. . A cylinder filled with a pressurized fluid; a sealing member that closes the cylinder and is provided with a jet outlet for the pressurized fluid; and a pointed portion that projects from the jet outlet to A sharpened body for stopping the ejection and ejecting the pressurized fluid by pulling out the pointed portion from the ejection port, an operating member for raising and lowering the sharpened body with respect to the ejection port, and movement of the sharpened body Holding the sharpened body of the pressurized fluid cylinder device provided with an elastic sheet provided with a perforation that is pressed and held on a locus and inserted through the pointed end, in a state of being pulled out from the ejection port and the perforation,
Fill the cylinder with liquid pressurized fluid,
A method of manufacturing a pressurized fluid cylinder device in which the sharpened body is pushed up to the jet port and the perforation.

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