JPH0416684B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for shielding a ventilation opening of a ventilation system that opens into a ceiling surface or the like.

[Conventional technology]

5 to 7 are diagrams showing a conventional ventilation port shielding device for a ventilation system similar to that shown in, for example, Japanese Utility Model Application Publication No. 59-49827. The figure is a longitudinal sectional view, and FIG. 7 is an enlarged sectional view of the main part.

In the figure, 1 is a mounting plate such as a ceiling, 2 is an outer box that is fixed through the mounting plate 1 and has a ventilation port 3 that opens downward, 4 is a blower housed in the outer box 2, and 5 is a ventilation port. 3 is a support provided below and has a ventilation hole 6 provided on the side; 7 is an outer peripheral frame attached to the support 6 and has an opening 8 below; 9 is made of the same material and the same thickness as the mounting plate; A shielding plate 10 and 11 is a spacer plate superimposed on the shielding plate 9, and a spacer plate 12 is superimposed on the spacer plate 11 and screwed in by screws 13. This is a restraining plate fastened to the outer peripheral frame 7.

The ventilation port shielding device of the conventional ventilation system is configured as described above, and when the blower 4 is operated, air is taken in from the indoor side through the ventilation port 6 as shown by arrow A, and is exhausted to the outdoor side as shown by arrow B.

The ventilation opening 3 opening into the outer box 2 is shielded by a shielding plate 9, which is made of the same material as the mounting plate 1 and has the same appearance as the mounting plate 1. Further, the spacing plates 10 and 11 are adjusted according to changes in the thickness of the shielding plate 9.

[Problem that the invention seeks to solve]

In the conventional ventilation port shielding device for a ventilation system as described above, the shielding plate 9 is made of the same material as the mounting plate 1, so its thickness is not constant. Therefore, the spacing plates 10 and 11 are required, and there is a problem in that the thickness of the spacing plates 10 and 11 must be changed in accordance with the change in the thickness of the shielding plate 9, or only one of them must be used. be.

This invention has been made to solve the above-mentioned problems, and provides a ventilation opening shielding device for a ventilation system that can easily cope with changes in the thickness of the shielding plate without using a spacer plate. The purpose is to

[Means for solving problems]

The ventilation port shielding device for a ventilation system according to the present invention includes:
A long hole is provided in the outer peripheral frame, one side of the holder having an L-shaped cross section is brought into contact with the inside of the outer peripheral frame, the other side is brought into contact with the edge of the shielding plate, and the fastener is attached to the holder through the long hole. By fastening, the holder is fixed to the outer peripheral frame.

[Effect]

In this invention, by moving the holder in the direction of the elongated hole of the outer peripheral frame, or by inverting the holder and moving it in the direction of the elongated hole, the dimension in the moving direction can be varied in various ways.

〔Example〕

Figures 1 to 4 are views showing one embodiment of the present invention, with Figure 1 being a longitudinal sectional view, Figure 2 being an external view of installation, and Figures 3 and 4 being perspective views for explaining installation. , 1~
4 and 9 are similar to the conventional device described above.

In the figure, 15 is an outer frame that is fixed through the mounting plate 1 and supports the outer box 2, and 16 is an outer peripheral frame provided within the outer frame 15, which is formed by a longitudinal member with a substantially L-shaped cross section. A long hole 16a extending along the thickness direction of the outer peripheral frame 16 is formed on the vertical side of the L-shape, and a protrusion 16 is formed on the horizontal side of the L-shape with a slight gap between it and the vertical side.
b is formed. Reference numeral 17 is a holder formed by a longitudinal member having an L-shaped cross section, the outside of one side 17a of which comes into contact with the vertical side of the peripheral frame 16, and the outside of the other side 17b comes into contact with the edge of the shielding plate 9; Outer frame 1
6 is a fastener made of a screw that is screwed into the holder 17 through the elongated hole 16a to hold the holder 17 to the outer frame 16; 19 is a ventilation hole formed between the outer frame 15 and the outer frame 16;

In the ventilation port shielding device of the ventilation system configured as described above, when the blower 4 is operated, air is taken in from the indoor side through the ventilation port as shown by arrow A, and is exhausted to the outdoor side as shown by arrow B.

Although the outer peripheral frame 16 is provided within the outer frame 15,
This reduces the protrusion from the surface of the mounting plate 1,
This is to give a clean and neat appearance.

The shielding plate 9 is held within the outer peripheral frame 16, and the position of its end surface is regulated by the protrusion 16b.
If it is relatively thin, as shown in FIG. It is concluded. If the shielding plate 9 is relatively thick, turn the holder 17 over as shown in FIG.
One side 17a is inserted into the gap created between the vertical side of the outer peripheral frame 16 and the end face of the shielding plate 9, and the inside of the other side 17b is brought into contact with the edge of the shielding plate 9, and the thickness is similarly adjusted. The holder 17 is moved accordingly and fastened with the screw 18.

In this way, even if the thickness of the shielding plate 9 changes, the holding tool 17 can easily hold the shielding plate 9.

Although the above embodiment has been described with reference to the case where the mounting plate 1 is a ceiling, it is also applicable to a panel of an air conditioner or the like.

〔Effect of the invention〕

As explained above, in this invention, an elongated hole is provided in the outer peripheral frame that holds the shielding plate of the ventilation hole of the outer box in which the blower is housed, and one side of the holder having an L-shaped cross section is brought into contact with the inside of the outer peripheral frame. The holder is fixed to the outer frame by attaching the other side to the edge of the shielding plate and fastening the fastener to the holder through the elongated hole, so even if the thickness of the shielding plate changes, This has the advantage that it can be easily handled without using a spacer plate or the like.

[Brief explanation of drawings]

Figures 1 to 4 are views showing an embodiment of the ventilation port shielding device for a ventilation system according to the present invention, in which Figure 1 is a longitudinal sectional view, Figure 2 is an external view of installation, and Figures 3 and 4. is a perspective view for explaining installation, FIGS. 5 to 7 are diagrams showing a conventional ventilation port shielding device, FIG. 5 is an external view of installation, FIG. 6 is a vertical sectional view, and FIG. FIG. 6 is an enlarged sectional view of the main part of FIG. 6; In the figure, 1 is the mounting plate, 2 is the outer box, 3 is the ventilation opening, 4
1 is a blower, 9 is a shielding plate, 16 is an outer peripheral frame, 16a is an elongated hole, 17 is a holder, 17a is one side, 17b is another side, and 18 is a fastener (screw). Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1 A mounting plate 1 to which an outer box 2 containing a blower 4 and having a ventilation opening 3 communicating with the blower 4 is fixed.
, a shielding plate 9 disposed within the ventilation opening 3 and made of the same material and the same thickness as the mounting plate 1 and shielding the ventilation opening 3, and a longitudinal member having an L-shaped cross section. An outer peripheral frame 16 disposed on the peripheral edge of the shielding plate 9 and having a long hole 16a extending along the thickness direction of the shielding plate 9 on one side of the L-shape, and a longitudinal member having an L-shaped cross section. Nariko L
A holder 17 in which the outside of one side 17a of the letter contacts the inside of the outer peripheral frame 16 and the other side 17b contacts the edge of the shielding plate 9, and is fastened to the holder 17 through the elongated hole 16a of the outer peripheral frame 16. The above holder 17
and a fastener 18 for fixing it to the outer peripheral frame 16.