JPH0337629Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is an insulating device for an appliance with a built-in heating element, especially an oxygen generating can containing a chlorate candle,
This invention relates to a heat insulating device for a portable oxygen inhaler, which is used as an emergency item when a person with a respiratory or circulatory system has difficulty breathing.

Conventional technology In conventional portable oxygen inhalers, a heat insulating material is filled between the case body and an oxygen generation can containing a chlorate candle that is replaceably built into the case body to prevent oxygen generation during oxygen generation. Some are designed to prevent the high heat of the can from being transmitted to the case itself.

Problems to be Solved by the Invention The conventional portable oxygen inhaler described above has a problem in that it takes time and effort to fill the insulating material in the assembly process.

The present invention aims to provide a heat insulating device for an appliance with a built-in heating element that can solve the above-mentioned conventional problems.

Means for Solving the Problems The present invention will be explained in detail below based on the drawings. 1 is a case body, 2 is a heat transfer tube, and there is a gap 3 between the inside of the case body 1 and the inner surface of the case body 1. is fixed to form a Reference numeral 4 denotes an oxygen generating can containing a chlorate candle, which is provided with a striking part 5 at one end and an oxygen outlet 6 at the other end, with the striking part 5 facing downward and the heat transfer cylinder 2
is inserted into. A bottom plate 7 covers the bottom of the case body 1 and has a ventilation hole 8 communicating with the cavity 3.
A striking pin 9 is connected to the striking part 5 and is attached to the bottom plate 7. 10 is an actuating device for striking the striking pin 9, which has a hammer 11 for striking the striking pin 9, and an operating lever 12 for operating the hammer 11;
It is attached to the bottom plate 7. 13 is the case body 1
The lid body is shaped to form a cavity 14 above the case body 1 in which a hose and an oxygen inhalation mask, which will be described later, can be stored. 15 is the lid body 13
A cap attached to the upper end of the cavity 14 opens and closes it. Reference numeral 16 denotes a support plate attached to the inside of the lid 13 so as to partition a position near the oxygen outlet 6 of the oxygen generating can 4, and has a ventilation hole 17.
Reference numeral 18 denotes a connecting pipe that communicates with the oxygen outlet 6 when the lid 13 is placed on the case body 1, and is attached to the support plate 16. 19 connects one end to pipe 1
8 is a hose connected to the hose 19, and 20 is an oxygen inhalation mask connected to the other end of the hose 19.

Operation: Remove the cap 15, take out the mask 20 from the cavity 14, and operate the operating lever 12 so that the hammer 11 strikes the striking pin 9. Then, an impact force is applied to the chlorate candle in the oxygen generating can 4, a thermal reaction occurs, and oxygen is generated. The generated oxygen is transferred to the oxygen outlet 6 and the connecting pipe 1.
8. Oxygen is sent to the mask 20 through the hose 19, so by covering the mouth and nose with the mask 20, oxygen can be inhaled.

The above thermal reaction is carried out from the end of the chlorate candle on the striking part 5 side to the oxygen outlet 6 while generating high heat.
Immediately after the start of the thermal reaction, the striking portion 5 of the surface of the oxygen generating can 4
The side edges are heated intensively. Then, the heat is transferred to the heat transfer tube 2, and its heat capacity lowers the maximum temperature, and the surface temperature of the oxygen generating can 4 is also made uniform, lowering the maximum surface temperature and preventing a fire from occurring in the unlikely event of a fire. Remove the cause. The heat transmitted to the heat transfer tube 2 is radiated to the gap 3 formed around the heat transfer tube 2. Then, the air in the cavity 3 is heated and passes through the ventilation hole 17 and rises, and at the same time,
Air outside the case body 1 is sucked into the gap 3 through the ventilation hole 8, and an upward air current is generated. The rising air flows out from the upper end opening of the lid 13 while increasing the flow velocity due to the chimney effect of the cavity 14 of the lid 13, exerting an air cooling effect, and reducing the heat transfer action of the heat transfer cylinder 2. Since heat dissipation is promoted, the case body 1 and the lid body 1
The amount of heat transferred to 3 is small, and their surface temperature is maintained at a safe temperature even when touched by hand.

Therefore, the case body 1 and lid body 13 are made of ABS.
It becomes possible to use a lightweight case body and lid made of plastic such as resin.

The present invention may be configured such that the inner surfaces of the case body 1 and the lid body 13 are plated with metal to further reduce radiant heat transfer from the heat transfer tube 2.

Embodiment The case body 1 and the lid 13 are formed into a cylindrical shape or other suitable shape.

A protective cover 22 is attached to the lower end of the case body 1, which is formed to cover the periphery of the actuating device 10 and has a ventilation hole 21.

A guide tube 23 is fixed to the upper end of the case body 1 with a pin 24 so as to protrude so as to fit into the inner surface of the lower end of the lid body 13 .

Engagement holes 25, 25 are provided on both sides of the guide tube 23, which are cut downward from the upper end and laterally from the cut ends, as shown in the fourth figure. Matching holes 25, 25
Engagement pins 26, 26 are provided protrudingly to be engaged with each other, and when the lid body 13 is placed on the case body 1, each engagement pin
6 and 26 are introduced into the respective engagement holes 25 and 25 so that the lid body 13 will not come off even if an attempt is made to simply pull it up from the case body 1.

The heat transfer tube 2 is made of a material with good thermal conductivity such as aluminum, and is molded to a thickness of, for example, about 5 mm.The lower end of the tube 2 is placed on the bottom plate 7, and is fixed to the bottom plate 7 with screws 27, etc. do.

The striking pin 9 has a pin nut 2 in the center of the bottom plate 7.
It is supported by the pin holder 29 attached at 8.

In the actuating device 10, for example, as shown in FIG. 1, a lever 31 supporting a hammer 11 is pivotally attached to a bracket 30 fixed to the bottom plate 7 by a shaft 32, and the operating lever 12 is pivoted by a shaft 33. A spring 34 is suspended on the lever 31, and a spring 34 is suspended on the lever 31, and a spring 34 is suspended on the operating lever 12, and a spring 34 is suspended on the lever 31, and a spring 34 is attached to the operating lever 12, and a spring 34 is attached to the lever 31, and a spring 34 is suspended on the lever 31, and a spring 34 is suspended on the lever 31, and a spring 34 is suspended on the lever 31, and a spring 34 is suspended on the lever 31, and the operating lever 12 is provided with a spring 34 that biases the hammer 11 so as to press the hammer 11 into contact with the striking pin 9. A lever 36 that suspends the lever 35 and drives the lever 31 is pivoted by a shaft 37, and a spring 38 that biases the lever 36 to press it against the operating lever 12 is suspended. A pull ring 39 is connected to the end opposite to the end on the pivot side. In this actuating device 10,
When the pull ring 39 is pulled, the operating lever 12 is pulled up using the shaft 33 as a fulcrum. In this process, the tip of the lever 36 pushes up the tip of the lever 31, so that the lever 31 moves about the shaft 32 and the hammer 11 is released from the striking pin 9 at the same time. When the lever 31 moves through a certain angle in this manner, the tip of the lever 31 is disengaged from the lever 36. Then, since the elasticity of the spring 34 acts on the lever 31, the lever 31 and the hammer 11 suddenly return to their original positions, and the hammer 11 strikes the striking pin 9, giving an impact to the chlorate candle. Therefore, when the pulling operation of the pull ring 39 is released, the elastic force of the spring 35 acts on the operating lever 12, so that the operating lever 12 rapidly returns to its original position. In this process, the tip of the lever 36 is pressed against the tip of the lever 31, so the lever 36 moves away from the operating lever 12 using the shaft 37 as a fulcrum, but when it moves a certain angle, the tip of the lever 36 is removed from the tip of the lever 31. Then, since the elastic force of the spring 38 acts on the lever 36, the lever 36 suddenly returns to its original position.

The connecting pipe 18 is connected to the oxygen outlet 6 via a nipple 40, and the nipple 40 is always pressed against the oxygen outlet 6 by a spring 45. When the cover body 13 is removed from the case body 1, the nipple 40 and the connecting pipe are connected to each other. Since the oxygen generating can 18 is also removed from the oxygen outlet 6, the used oxygen generating can 4 can be taken out and a new oxygen generating can can be inserted into the heat transfer cylinder 2.

On the inner surface of the lower end of the lid 13, projections 41, 41 that can press the outer periphery of the upper end of the heat transfer cylinder 2 are attached at intervals.

The oxygen inhalation mask 20 has a built-in mark 42 and a spring 43 that presses the mark 42 as shown in FIG.
In some cases, a flow indicator 44 that is displaced against the elasticity of the oxygen generating can 4 may be attached so that it can be determined whether or not oxygen is being sent to the mask 20 from the oxygen generating can 4.

A large number of grooves are provided on the outer periphery of the case body 1.
By reducing the contact area of the hand with respect to the case body 1, the amount of heat transmitted to the hand may be reduced, or a heat-sensitive label may be attached to display the temperature change of the case body 1.

The present invention may be configured such that various heating elements other than the oxygen generating can 4 are inserted into the heat transfer cylinder 2.

Effects of the invention Since the invention is configured as described above, even if a heating element such as an oxygen generating can built into the case body generates high heat, the surface temperature of the case body and lid can be controlled by touching. Even if the case body falls over while the heating element is generating high heat, the heat transfer cylinder prevents heat from concentrating, so that the local parts of the case body and lid are kept at a safe temperature. This prevents the occurrence of hot spots and lowers the temperature due to heat capacity. Moreover, since there is no need to fill in insulation material between the case body and the heating element, the assembly process of the appliance with a built-in heating element can be simplified, and the manufacturing cost can be reduced accordingly, providing an inexpensive appliance with a built-in heating element. It has the advantage of being able to

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIG.
FIG. 3 is a bottom view, FIG. 4 is a partial side view with the lid removed from the case body, and FIG. 5 is a diagram showing an example in which a flow indicator is attached to an oxygen inhalation mask. DESCRIPTION OF SYMBOLS 1...Case body, 2...Heat transfer cylinder, 3...Gap, 4...Oxygen generating can, 7...Bottom plate, 8...Vent hole, 9...Blowing part, 10...Actuation device, 13... …
Lid body, 14...Cavity, 15...Cap, 19...
...Hose, 20...Oxygen inhalation mask.

Claims (1)

[Claims for Utility Model Registration] (1) A heat transfer tube that forms a gap with the inner surface of the case body is fixed inside the case body, and this heat transfer tube includes a chlorate candle having a striking part. Insert an oxygen generating can or other heating element into which an oxygen inhalation mask is connected to the oxygen outlet, and insert the oxygen generating can into the bottom plate of the case body.
A device with a built-in heating element, comprising a ventilation hole communicating with the void, a lid that forms a cavity above the case body, and a cap that opens and closes the cavity attached to the upper end of the lid. insulation device. (2) An actuating device connected to the striking part of the oxygen generating can is provided on the bottom plate of the case body, one end of a hose is connected to the oxygen outlet of the oxygen generating can, and an oxygen inhalation mask is connected to the other end of the hose. A heat insulating device for an appliance with a built-in heating element according to claim 1 of the registered utility model claim. (3) A heat insulating device for an appliance with a built-in heating element as set forth in claim 1 or 2 of the utility model registration claim, wherein the inner surfaces of the case body and the lid are plated with metal.