JP3392121B2 - Inhaler - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inhaler for inhaling spray particles, and more particularly to a steam-type inhaler using steam generated in a boiler. 2. Description of the Related Art As shown in FIG. 3, a conventional steam-type inhaler has a built-in boiler 2 and a detachable water supply / drainage tank 3, and a sprayer provided on the main body 1. Mouth 4
And a suction guide 6 removably attached to the suction guide. In this inhaler, the heater 21
To generate steam in the boiler 2, and discharge the steam 20 generated in the boiler 2 from the nozzle 23 having a small hole of about φ1.0 to the spray port 4 through the communication passage 22 at the steam pressure. At this time, the suction liquid put in the water supply / drain tank 3 is sucked into the suction liquid discharge port 31 from the suction liquid nozzle 30 provided in the vicinity of the nozzle 23 and discharged in the form of mist from the spray port 4 via the suction guide. It is to let. [0003] In the conventional steam type inhaler, a heater 21 is attached to the side of the boiler 2, and water is boiled by the heater 21, and the generated steam is passed through a nozzle 23. It is a method to squirt from. At the time of normal spraying, the steam pressure inside the boiler 2 is about 0.3 atm. However, since the nozzle hole is small, the nozzle hole may be clogged by adhesion of dust or the like. Rises abnormally,
There was a risk that the boiler 2 would burst. Therefore, an opening hole 40 is provided in a part of the boiler 2, a safety valve is formed by the rubber body 25 and the spring body 24, and when the pressure exceeds a certain pressure, the safety valve is operated to release steam. However, if the spring of the safety valve is caught or the opening hole 40 is clogged by foreign matter, the pressure of the boiler 2 further abnormally increases, and there is a risk of the boiler case exploding or the boiler cap breaking. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to reduce the risk of rupture of the boiler even if the safety valve does not operate. It is an object of the present invention to provide an inhaler that does not have any safety and can sufficiently ensure safety. In order to solve the above-mentioned problems, according to the present invention, the heater 21 is energized to generate steam in the boiler 2, and the steam generated in the boiler 2 is ejected. An inhaler that disposes a nozzle 23 to be sucked from a suction liquid nozzle 30 by steam ejected from the nozzle 23 and discharges the suction liquid toward the spray port 4, wherein the boiler 2 is disposed between the boiler 2 and the heater 21. An engagement groove 27 is formed so that a sealing member 29 for sealing a gap between the heater and the heater 21 can be mounted.
8 is provided, and with such a configuration, even if the steam pressure in the boiler 2 rises abnormally, the seal member 29 located in the notch 28 of the engagement groove 27 is provided.
Is extruded outward to form a gap, and steam can escape from this gap. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. The basic structure and operation of the inhaler are the same as those of the prior art shown in FIG. The inhaler according to the present embodiment is characterized by a structure for sealing between the boiler 2 and the heater 21. An opening for releasing steam is provided in a part of the side surface 2a of the boiler 2, and an annular engaging groove 27 is formed along the outer peripheral portion of the side surface 2a. A seal member 29 such as silicon rubber is mounted along the gap. Further, a heater 21 is attached to the outside of the side surface 2 a of the boiler 2, and a gap between the heater 21 and the boiler 2 is sealed by a seal member 29. In this example, the engagement groove 27 is formed in a square shape, but the shape is not particularly limited. A cutout 28 is provided in a part of the outside of the annular engagement groove 27. Here, a notch 28 is provided at one corner of the annular engagement groove 27, and the steam pressure in the boiler 2 rises abnormally, and the force for pushing the seal member 29 outward is reduced. When working, the sealing member 29 is notched 2
Only part 8 is pushed outward. If the safety valve (FIG. 3) composed of the rubber body 25 and the spring body 24 does not operate, the steam pressure in the boiler 2 rises abnormally and the side surface 2a of the boiler 2
Of the sealing member 29 by the steam force from the opening provided in the
The force which pushes out to the outside works. At this time, the seal member 29 located in the notch 28 of the engagement groove 27 is
As shown in (1), a gap is formed by being pushed outward, and steam escapes from this gap, so that an abnormal increase in steam pressure can be prevented, and the danger of rupture or the like is eliminated. Further, a double safety structure can be obtained by using the seal structure using the seal member 29 and the safety valve together. Further, it is only necessary to form the cutout 28 outward in a part of the engagement groove 27, and it is not necessary to add a new part. Therefore, it is possible to improve safety with a simple structure and at low cost. There is also the advantage that you can. In the above embodiment, the case where the heater 21 is attached to the side surface 2a of the boiler 2 has been described.
Not limited to the side surface 2a, the bottom surface of the boiler 2 may be used. According to the first aspect of the present invention, when the heater of the inhaler is energized to generate steam in the boiler, the boiler and the heater are disposed between the boiler and the heater. An engagement groove is formed so that a seal member for sealing a gap between the engagement groove and the engagement groove is formed, and a notch is provided in an outer part of the engagement groove, so that the safety valve does not operate. In such a case, the steam pressure in the boiler abnormally rises, a force to push the seal member outward acts, and the seal member located in the notch of the engagement groove is pushed outward to form a gap. The steam escapes from this gap, so that an abnormal increase in the vapor pressure can be prevented, and the danger such as rupture is eliminated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an example of the embodiment. FIG. 2 is a front view illustrating a state in which the pressure is applied to the sealing member and the sealing member is pushed outward. FIG. 3 is a sectional view of a conventional example. [Description of Signs] 2 Boiler 10 Passage 21 Heater 23 Nozzle 27 Engagement groove 28 Notch 29 Seal member

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61M 11/04 F22B 1/28

Claims (1)

(1) Claims: (1) A heater is energized to generate steam in a boiler, and a nozzle for jetting out the steam generated by the boiler is arranged. An inhaler that sucks up the inhalation liquid from the boiler and discharges it toward the spray port. An engagement groove is formed between the boiler and the heater so that a seal member for sealing the gap between the boiler and the heater can be attached. An inhaler, wherein a notch is provided in a part of the outside of the engagement groove.