JPH0325585Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heating evaporation device that evaporates chemicals such as insecticides, aromatics, and bactericides into the air.

[Conventional technology]

As shown in Japanese Utility Model Publication No. 44-7009, the main body and the upper case constitute a transpiration device, and the main body includes a heating element and a cylinder supporting a disc-shaped heating evaporation plate having a plurality of partitioned drug-impregnated parts, and a heating device. A knob plate is provided to rotate the evaporation plate, and a ventilation hole facing the heating element is provided in the upper case, and by rotating the heating transpiration plate with the knob plate, each drug-impregnated area is sequentially heated by the heating element. A heating evaporation device is known that evaporates by heating.

[The problem that the idea aims to solve]

In such a heating evaporation device, since the knob plate is rotated at the rotation center of the heating evaporation plate, the torque required for rotation increases in proportion to the size of the heating evaporation plate, so it takes a large force to rotate the heating evaporation plate. Requires.

In addition, the amount of movement of the outer periphery of the heating evaporation plate increases depending on the rotation angle of the knob plate, and in order to reduce the amount of movement of the outer periphery of the heating evaporation plate, it is necessary to rotate the knob plate by a minute angle, so the amount of movement of the outer periphery of the heating evaporation plate It is very difficult to accurately fine-tune the area, and it is very difficult to correctly position the divided drug-impregnated portion on the heating element, resulting in positional deviation, resulting in poor drug evaporation.

Furthermore, since the knob plate is rotated from below the main body, the main body must be lifted each time the knob is rotated, which is inconvenient.

[Means and actions for solving the problem]

It consists of a disc-shaped heating evaporation plate having a plurality of drug-impregnated parts radially separated by slit-shaped ventilation holes, and a transpiration device consisting of a main body and an upper lid, and the heating evaporation plate is placed between the main body and the upper lid, As a structure in which the drug-impregnated part is located on the heating element and is rotatably supported so that a part of the outer periphery protrudes to the outside,
The outer periphery can be held and rotated by hand.

Embodiment A cylindrical protrusion 2, a ring-shaped first support part 3 and a second
The support portion 4 is provided concentrically and constitutes a support portion 5 that rotatably supports the heating evaporation plate, and
A pilot lamp 6 is provided on the protrusion 2 to indicate the energized state, and an opening 8 facing the heating element 7 is formed between the first support part 3 and the second support part 4. It protrudes slightly upward from the upper surfaces 3a, 4a of the first and second supporting parts 3, 4 with a gap from the part 8, and a heating evaporation plate is installed on the upper surface 1a of the main body 1 to smoothly rotate. A tilted guide piece 9 is provided on which the guide piece 9 is placed, and a pair of anti-reverse claws 1 are provided.
0 and 10 are provided at predetermined intervals.

The upper lid 11 is attached to the main body 1 with a hinge 12 so as to be vertically movable, and the upper lid 11 is formed with an evaporation port 13 facing the heating element 7 and a cutout opening 19, as well as the first and second support portions. Ring-shaped first and second holding parts 14 and 15 are formed opposite to the first and second holding parts 3 and 4, and a pair of holding pieces 16 and 16 are further provided to face the pair of reverse prevention claws 10. The lower surface 16a and the upper surface 1 of the reverse prevention claw 10
0a is a slope.

The main body 1 and the upper lid 11 are provided with an engaged portion 17 and an engaging portion 18 that engage with each other, and the upper lid 11
When closed, the two engage and can be positioned correctly.
The main body 1 and the upper lid 11 constitute a transpiration tool.

As shown in FIGS. 2 and 3, the heating evaporation plate 20 has a disk shape with a circular opening 21 in the center, and a plurality of slit-shaped ventilation holes 22 are formed radially to form a plurality of drug-impregnated parts 23. In addition, U-shaped notches 2 are provided on the outer circumferential surface facing each ventilation hole 22.
4 is formed.

Then, the circular opening 21 fits into the protrusion 2,
The inner annular portion 25 is connected to the first support portion 3 and the first presser portion 14
The outer annular portion 26 is held between the second support portion 4 and the second presser portion 15, and the outer circumferential portion protrudes outward from the notch opening 19 continuous with the evaporation port 13 of the upper lid 11. There is.

When one drug-impregnated part 23 is placed on the heating element 7, the reversal prevention claw 10 fits into the ventilation hole 22, and the inclined upper surface 10a and the holding piece 1
6, the rotation direction of the heating evaporation plate 20 is restricted to one direction as shown in FIG. It is positioned and placed on top.

In other words, without the reversal prevention pawl 10, the heating evaporation plate 2
0 can be rotated in both forward and reverse directions, the drug-impregnated part 23 used may be rotated incorrectly so as to be placed on the heating element 7, and one drug-impregnated part 23 may be placed on the heating element 7 correctly. It may not be possible to position and place the item.

Therefore, the heating evaporation plate 20 can be rotated by pushing the outer periphery by hand, and since the torque at this time increases in proportion to the diameter, it can be rotated with a small force, and there is no need to lift it, so the two work together. As a result, the rotation operation of the heating evaporation plate 20 becomes extremely easy.

In addition, the amount of movement of the outer periphery is the same as the amount of rotation when pushing by hand, allowing fine adjustment of the amount of movement of the drug-impregnated part, allowing easy and accurate positioning of the drug-impregnated part on the heating element 7, and stabilizing drug evaporation during heating use. .

Further, the heating evaporation plate 20 has a circular opening 21 and a main body 1.
It is positioned and installed using the protrusion 2, making it easy to install.

In addition, since the upper surface 7a of the heating element 7 protrudes upward from the upper surfaces 3a and 4a of the first and second support parts 3 and 4, the drug-impregnated part 23 near the heating element 7 is in a floating state, causing heat generation. Heat conduction from the body 7 is blocked, and thermal deterioration of the drug impregnated into the unused drug-impregnated portion 23 can be prevented.

Further, since there is a gap between the heating element 7 and the opening 8, the heat inside the main body 1 becomes an upward air current, rises from the vicinity of the heated part through the gap, and is diffused from the evaporation port 13. Therefore, not only can heat buildup be prevented, but also the effect of promoting drug evaporation can be expected.

Further, since the heating evaporation plate 20 is placed on the upper surface 7a of the heating element 7 smoothly by the guide piece 9, the end face of the drug-impregnated portion 23 does not hit the edge of the heating element 7, and the drug is impregnated. The drug-impregnated portion 23 will not rub off.

The heating evaporation plate 20 also includes the first and second support parts 3,
4 and the first and second holding parts 14 and 15, so that no warping or distortion occurs, and it is possible to remove any warpage or distortion that may have occurred in advance, making the heating evaporation plate smooth. It can be rotated to

Further, the guide piece 9 may have a plate shape or a planar shape.

Further, a plate spring, a spring, a rubber piece, etc. may be used as the reverse rotation prevention pawl.

Further, the evaporation port and the notch opening may be adjacent to each other, or may be separated and provided at any desired position.

[Effect of idea]

By holding the outer periphery of the heating evaporation plate 20 by hand and rotating it, each drug-impregnated portion 23 can be sequentially heated and evaporated by the heating element 7, and since the amount of movement of the outer periphery and the rotational operation angle are approximately the same, the drug impregnation is completed. The amount of movement of the portion 23 can be finely adjusted, the drug-impregnated portion 23 can be easily and accurately positioned on the heating element 7, and drug evaporation can be stabilized.

Further, since the torque at this time increases in proportion to the diameter, rotation operation can be performed with a small force, and since there is no need to lift it, the heating evaporation plate 20 can be rotated extremely easily.

In addition, since the plurality of drug-impregnated parts 23 are divided by the plurality of slit-shaped ventilation holes 22, the air heated by the heating element 7 becomes an upward air current from the ventilation holes 22 and diffuses from the transpiration port 13. In addition to preventing heat build-up, it can also be expected to promote drug evaporation.

In addition, notches 2 are provided on the outer peripheral surface facing each ventilation hole 22.
4 is formed, the rotational position of the heating evaporation plate 20 is known by this notch 24, and the drug-impregnated portion 23
can be positioned correctly on the heating element 7.

Further, since the heating evaporation plate 20 is installed by fitting the circular opening 21 into the circular protrusion 2, the heating evaporation plate 20
0 can be easily positioned and rotated freely.

In addition, since the heating evaporation plate 20 is placed on the upper surface of the heating element 7 smoothly by the guide piece 9, the end face of the drug-impregnated portion 23 is not hit by the edge of the heating element 7 and is impregnated with the drug. The drug-impregnated portion 23 does not rub off.

Furthermore, by fitting the reverse prevention pawl 10 into the ventilation hole 22, the rotation direction of the heating evaporation plate 20 can be restricted to one direction and prevented from rotating in the opposite direction. It is possible to prevent the drug-impregnated part 23 that has been rotated and used from being placed on the heating element 7.

[Brief explanation of the drawing]

Figures 1 to 6 show embodiments of the present invention;
The figure is a perspective view, the second figure is a plan view of the heating evaporation plate, and the third figure is a perspective view.
The figure is a front view, and FIGS. 4, 5, and 6 are a plan view, a sectional view, and an enlarged view of the heated portion with the heating evaporation plate attached.

Claims (1)

[Claims for Utility Model Registration] It has a disc shape with a circular opening 21 in the center, and a plurality of slit-shaped ventilation holes 22 are formed radially to partition a plurality of drug-impregnated parts 23. A heating evaporation plate 20 in which a notch 24 is formed facing each ventilation hole 22, a main body 1, and an upper lid 11 that can be freely engaged with and detached from the main body 1.
A heating evaporation device comprising a transpiration device rotatably supporting the heating evaporation plate 20, wherein the heating evaporation plate 20 is mounted on the upper surface 1a of the main body 1.
A circular protrusion 2 into which the circular opening 21 of the main body 1 fits, a heating element 7, and a guide piece 9 with an inclined upper surface adjacent to the heating element 7 are provided, respectively.
A reversal prevention pawl 10 is provided on the upper surface 1a to prevent the reversal of the heating evaporation plate 20 by engaging with the ventilation hole 22 of the heating evaporation plate 20, and a transpiration opening 1 facing the heating element 7 is provided on the upper lid 11.
3. A heating evaporation device characterized in that a portion of the outer peripheral edge of the heating evaporation plate 20 is formed with a cutout opening 19 that projects to the outside.