JP4220972B2 - Vaporizer - Google Patents

Description

  The present invention relates to a vaporizer that heats a liquid by a heater and ejects it as a vaporized gas, and particularly relates to a configuration of a vaporizer that can maintain durability even when the vaporized gas is ejected and stopped at short intervals.

  A conventional vaporizer will be described with reference to the drawings. As shown in FIG. 4, it has a cylindrical body 52 in which a cylindrical portion 50 and a small-diameter portion 51 are integrally formed by deep drawing, and a nozzle pipe 54 having a jet outlet 53 at the tip. The opposite side of the outlet 53 is welded and joined to the small diameter portion 51. A vaporization unit 55 includes a heater 56, and the vaporization unit 55 communicates with the nozzle pipe 54 through the communication port 57 and is connected to the electromagnetic pump 59 through the liquid feeding pipe 58.

  Reference numeral 60 denotes a movable piece housed in the cylindrical portion 50, and the movable piece 60 is constantly pressed toward the ejection port 53 by a spring 62 interposed between the movable piece 60 and the fixed piece 61. Further, 63 is a plunger valve for interlocking with the movable piece 60 and closing the dented portion 64 of the fixed piece 61, and this nigged portion 64 communicates with the tray 66 via the ninge pipe 65.

  67 is a valve rod, one of which is formed with a needle valve 68 for opening and closing the spout 53, and the other is provided with a flange portion 69 at the end, which is movable from this flange portion 69 and a retaining ring 70 attached to the valve rod 67. It is connected to the piece 60. Further, reference numeral 71 denotes a solenoid coil that slides the movable piece 60 by generating a magnetic force depending on the presence or absence of energization.

  Next, the operation of this vaporizer will be described. When the operation switch of the device is turned on, the heater 56 is energized, and the vaporizer 55 is heated by the heat generated by the heater 56. And if the vaporization part 55 rises to the temperature which can vaporize a liquid, the electromagnetic pump 59 will start. As a result, the liquid is fed into the vaporizing section 55, and the liquid is vaporized by heating to become vaporized gas, and flows into the nozzle pipe 54 through the communication port 57.

  Further, since the solenoid coil 71 is energized before and after the electromagnetic pump 59 is started, the movable piece 60 slides toward the fixed piece 61 as shown in FIG. Since the valve 68 is detached from the ejection port 53 and the plunger valve 63 interlocked with the movable piece 60 closes the relief 64 of the fixed piece 61, the vaporized gas flowing into the nozzle pipe 54 is ejected from the ejection port 53 to the outside. Is done.

In order to stop the ejection of the vaporized gas, the energization to the heater 56 and the electromagnetic pump 59 is stopped simultaneously with the energization to the solenoid coil 71 as shown in FIG. As a result, the needle valve 68 of the valve rod 67 closes the ejection port 53, and the relief portion 64 closed by the plunger valve 63 is opened, so that the vaporized gas remaining in the vaporization portion 55 and the nozzle pipe 54 is reduced. It returns to the saucer 66 through the Nige pipe 65 from the Nige portion 64.
JP 2004-77049 A

  By the way, in the above-described vaporizer, when the solenoid coil is energized, the movable piece moves to the fixed piece side by overcoming the urging force of the spring by the magnetic force generated from the solenoid coil, but the flange portion of the valve rod is caught by the movable piece. As a result, the valve rod also moves to the fixed one side, so that the needle valve of the valve rod opens the ejection port.

  On the other hand, when the energization to the solenoid coil is stopped, the magnetic force from the solenoid coil disappears, so the movable piece moves to the jet outlet side vigorously due to the biasing force of the spring and the needle valve closes the jet outlet, and at the same time, the valve rod The movable piece collides violently with the retaining ring attached to the. That is, the movable piece is stopped at a predetermined position by the retaining ring so that the movable piece does not move more than a predetermined amount toward the ejection port.

  However, when the above-mentioned vaporizer is incorporated in a smoke generator that generates smoke and used for the production of shows and attractions, and when it is repeatedly smoked and stopped, or used in a liquid fuel combustion device, ignition and extinguishing are frequently performed. When it repeats, the frequency | count that a movable piece collides with a retaining ring will increase. Then, the retaining ring collided with the movable piece gradually deforms as the number of collisions increases, and eventually causes metal fatigue and breaks.

  Therefore, this broken piece remains in the cylinder and the nozzle pipe, and the valve rod cannot be slid, so that there is a problem that the jet port cannot be opened and closed. In particular, smoke generators that generate smoke repeatedly emit and stop at extremely short intervals (for example, 1 second smoke / 2 seconds stop), so durability is required so that the retaining ring does not break even after millions of times. There is a case.

  In addition, a collision noise is generated when the movable piece collides with the retaining ring, which makes the user uncomfortable. Furthermore, when attaching the retaining ring to the valve rod, a jig or special tool must be used for vaporization. There was a problem that the assembly cost and assembly time of the apparatus increased.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vaporizer that can improve the durability by increasing the number of times the vaporized gas outlet is opened and closed.

The present invention includes a nozzle pipe provided with a jet port, a cylindrical body that communicates with the nozzle pipe and includes a cylindrical portion and a small diameter portion , a movable piece that is housed in the cylindrical body, and a valve rod that is connected to the movable piece. A vaporizing device having a solenoid coil that slides the movable piece according to the presence or absence of energization and opens and closes the jet port with the valve rod, and when the valve rod closes the jet port, the movable piece is placed at a predetermined position of the cylindrical portion. In order to stop, the vaporizing apparatus is characterized in that a coil spring is provided on the ejection port side of the movable piece .

  By configuring as described above, it is possible to improve the durability of the vaporizer because the number of times of opening and closing of the jet port by the needle valve of the valve rod can be increased, and at the same time, the collision sound generated when the jet port is closed can be suppressed, so that the user can No discomfort. Furthermore, since it is not necessary to use a jig or a dedicated tool for assembling the vaporizer, assembly costs and assembly time can be reduced.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode of the present invention, which is considered preferable, will be briefly described by showing the effects of the present invention.

The present invention relates to a vaporizer that slides a movable piece depending on whether a solenoid coil is energized and opens and closes a jet port by a valve rod connected to the movable piece. In order to stop at a predetermined position of the cylindrical portion , a coil spring is provided on the ejection port side of the movable piece .

That is, even if the energization of the solenoid coil is stopped and the movable piece slides vigorously to the jet outlet side by the biasing force of the spring , the impact force of the movable piece is absorbed by the coil spring provided on the jet outlet side. Become. That is, the movable piece is stopped at a predetermined position of the cylindrical portion while the coil spring absorbs the impact force of the movable piece.

  Therefore, it is not possible to open and close the outlet due to breakage of the retaining ring as in the conventional case, and the number of opening and closing of the outlet can be increased compared to the conventional vaporizer, greatly increasing the durability of the vaporizer. It can be improved.

Furthermore, since the impact force of the movable piece is suppressed by the coil spring, it is possible to suppress the collision sound generated when the jet outlet is closed. In addition, since it is only necessary to insert the coil spring into the valve rod in the assembly of the vaporizer, it is not necessary to use a jig or a dedicated tool for attaching a conventional retaining ring, so that the assembly cost and time can be reduced.

  Specific embodiments of the present invention will be described with reference to the drawings.

  From FIG. 1, it has the cylinder 3 in which the cylindrical part 1 and the small diameter part 2 are integrally formed by deep drawing, and the nozzle pipe 5 which has the jet nozzle 4 in the front-end | tip, This nozzle pipe 5 is the jet nozzle 4 The opposite side is welded and joined to the small diameter portion 2. Reference numeral 6 denotes a vaporizing section provided with a heater 7. The vaporizing section 6 communicates with the nozzle pipe 5 through the communication port 8 and is connected to the electromagnetic pump 10 through the liquid feeding pipe 9.

  Reference numeral 11 denotes a movable piece housed in the cylindrical portion 1, and the movable piece 11 is constantly pressed toward the jet nozzle 4 by a spring 13 interposed between the movable piece 11 and the fixed piece 12. Further, 14 is a plunger valve for interlocking with the movable piece 11 and closing the dented portion 15 of the fixed piece 12, and the dented portion 15 communicates with the tray 17 via the ninge pipe 16.

  Reference numeral 18 denotes a valve rod, on one of which a needle valve 19 that opens and closes the spout 4 is formed, and on the other side, a flange portion 20 is provided at an end portion and is connected to the movable piece 11 by this flange portion 20. Furthermore, a coil spring 21 as an elastic body is provided on the jet nozzle 4 side of the movable piece 11, and the coil spring 21 is appropriately designed depending on the impact load of the movable piece 11. Reference numeral 22 denotes a solenoid coil that slides the movable piece 11 by generating a magnetic force depending on the presence or absence of energization.

  Next, the operation of this vaporizer will be described. When the operation switch of the device is turned on, the heater 7 is energized, and the vaporizer 6 is heated by the heat generated by the heater 7. When the vaporizing section 6 rises to a temperature at which the liquid can be vaporized, the electromagnetic pump 10 is started. As a result, the liquid is sent into the vaporization unit 6, and the liquid is vaporized by heating to become vaporized gas, which flows into the nozzle pipe 5 through the communication port 8.

  Further, since the solenoid coil 22 is energized before and after the electromagnetic pump 10 is started, the movable piece 11 slides toward the fixed piece 12, and the needle valve 19 is detached from the ejection port 4. Since the interlocking plunger valve 14 closes the dented portion 15 of the fixed piece 12, the vaporized gas that has flowed into the nozzle pipe 5 is ejected from the ejection port 4 to the outside.

  In order to stop the ejection of the vaporized gas, the energization to the heater 7 and the electromagnetic pump 10 is stopped and the energization to the solenoid coil 22 is stopped at the same time. As a result, the needle valve 19 of the valve rod 18 closes the ejection port 4 and the dented portion 15 closed by the plunger valve 14 is opened, so that the vaporized gas remaining in the vaporizing portion 6 and the nozzle pipe 5 is released. Is returned to the saucer 17 from the relief portion 15 through the relief pipe 16.

  That is, when the solenoid coil 22 is energized, the movable piece 11 overcomes the urging force of the spring 13 by the magnetic force generated from the solenoid coil 22 and slides toward the fixed piece 12 as shown in FIG. When the flange portion 20 is hooked on the movable piece 11, the valve rod 18 also moves to the fixed piece 12 side, so that the needle valve 19 of the valve rod 18 opens the spout 4.

  On the other hand, when the energization to the solenoid coil 22 is stopped, the magnetic force from the solenoid coil 22 disappears as shown in FIG. 3, so that the movable piece 11 is vigorously moved to the jet nozzle 4 side by the biasing force of the spring 13. A valve 19 closes the spout 4. At this time, the movable piece 11 violently collides with the coil spring 21 provided on the jet nozzle 4 side, but this impact force is absorbed by the coil spring 21. That is, the movable piece 11 is stopped at a predetermined position while the coil spring 21 absorbs the impact force of the movable piece 11.

  Therefore, unlike the conventional vaporizer, the nozzle 4 cannot be opened and closed due to breakage of the retaining ring, and the number of times of opening and closing the nozzle 4 can be increased as compared with the conventional vaporizer. It can be greatly improved. In particular, smoke generators that generate smoke repeatedly emit and stop at extremely short intervals (for example, 1 second smoke / 2 seconds stop). The vaporizer of the present invention can fully satisfy the requirements.

  Furthermore, since the impact force of the movable piece 11 is absorbed by the coil spring 21, it is possible to suppress the collision sound generated when the jet nozzle 4 is closed. Further, since it is only necessary to insert the coil spring 21 into the valve rod 18 in the assembly of the vaporizer, it is not necessary to use a jig or a dedicated tool for attaching a conventional retaining ring, so that the assembly cost and the assembly time can be reduced. .

It is a block diagram of the vaporization apparatus of this invention. It is explanatory drawing which shows the state which the jet nozzle of the vaporization apparatus of this invention opened. It is explanatory drawing which shows the state which the jet nozzle of the vaporization apparatus of this invention obstruct | occluded. It is a block diagram of the conventional vaporization apparatus. It is explanatory drawing which shows the opening-and-closing state of the jet nozzle of the conventional vaporization apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Tubular body 4 Jet nozzle 5 Nozzle pipe 6 Vaporization part 7 Heater 11 Movable piece 18 Valve rod 21 Coil spring (elastic body)
22 Solenoid coil

Claims (1)

A nozzle pipe provided with a spout, a cylindrical body that communicates with the nozzle pipe and includes a cylindrical portion and a small-diameter portion , a movable piece housed in the cylindrical body, and a valve rod connected to the movable piece, in vaporizer having a solenoid coil for opening and closing the ejection port by the valve rod slide the movable piece by the presence or absence, for stopping the movable piece when the valve rod closes the spout at a predetermined position of the cylindrical portion A vaporizer characterized in that a coil spring is provided on the ejection port side of the movable piece .

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