JPH06229606A - Ventilator - Google Patents

Abstract

PURPOSE:To provide a ventilator in which an inspection port of a ventilator body to be provided at a ceiling surface is exactly disposed at a predetermined position. CONSTITUTION:The ventilator comprises a ventilator body 1 connected between ducts 10 and 11 arranged behind a ceiling in such a manner that the body 1 is positioned fixedly therein and its bottom has a frame 5 formed of an openable grill 9b for forming a ceiling surface 9. Thus, an inspection port 9a of a ventilator body 12 provided at the ceiling surface can be exactly disposed at a predetermined position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device buried under the ceiling.

[0002]

2. Description of the Related Art FIG. 5 is a system configuration diagram showing a conventional ceiling-embedded blower connected to a pipe, and FIG. 6 is a side view showing an intermediate type blower connected between ducts in FIG. FIG. 7 is a perspective view showing a state in which a conventional ventilation fan for a ceiling-embedded duct is attached.

In FIGS. 5 and 6, reference numeral 1 denotes an intermediate-type blower disposed between the duct 10 and the duct 11, which generates an air flow in the duct to blow air. Duct 10, 1
1 and the blower 1 are usually suspended and fixed from the ceiling wall 15 by ceiling suspension bolts 12. Numeral 9 is a ceiling surface. Usually, the beams 16 are arranged in a grid pattern so as to form a space above the ceiling for duct piping, and a decorative plate is attached to the lower side so that the duct piping cannot be seen from the inside. , Keeps aesthetics. An inspection port 9a is provided on the ceiling surface 9 so as to face the blower 1 and the like, and is covered with an inspection port lid 9b that can be opened and closed.

In the ceiling-embedded blower configured as described above, the duct 16 and the blower 1 are attached and fixed to the ceiling wall 15 at the time of piping work to assemble the system, and then the beam 16 is passed to the decorative plate. To assemble the ceiling surface, or after passing the beam 16 in advance, assemble a system such as duct piping and then attach a decorative plate to assemble the ceiling surface.

Further, in FIG. 7, 16 is a beam assembled to the ceiling in a grid pattern, 4 is a duct connecting portion, 8 is a ventilation fan main body fixed to the beam 16 and the duct connecting portion 4, and 9b is a chamber of the ventilation fan main body 8. The grill covers the air supply port 8a facing the inside, and also has an opening 9c that also serves as a ceiling surface and for supplying indoor air.

In the above duct ventilation fan installation work step, first, the beam 16 is assembled in accordance with the embedded dimensions of the ventilation fan main body 8 and the duct, and the duct connecting portion 4 is screwed to the beam 16 at a predetermined position. After fixing, the ventilation fan main body 8 is inserted from below between the beams 16 and screwed and fixed to the beams 16 and the duct connection portion 4, and then the grill 9b is attached to the ventilation fan main body 8. Then, after connecting the ducts and assembling the system, a duct plate other than the grill 9b is covered by attaching a decorative plate that also serves as a ceiling surface to the beam 16.

[0007]

Since the conventional ventilation device is constructed as described above, in the case of an intermediate type blower, the beam is passed according to the position of the blower main body determined by the duct piping and The inspection port is provided on the ceiling so that they do not overlap, or the position of the inspection port is restricted and determined by the position of the preassembled beam, so the position of the blower main body is determined accordingly, and duct piping is not required. There was a restriction that it should not be. In addition, when different companies perform duct piping work and ceiling surface assembly work, the inspection port may not be installed at the predetermined position decided for the blower inspection, which makes maintenance difficult or There was something I couldn't do at all.

Further, in the case of a duct ventilation fan, the position of the ventilation fan main body is severely limited by the position of the beam, so that the entire duct piping is restricted by the beam, and it is inconvenient that the piping is unreasonably designed. Occasionally, there was a case where the duct piping itself could not be performed due to dimensional error when assembling the beam, and it was necessary to redesign.

The present invention has been made to solve the above problems, and an object thereof is to obtain a ventilation device in which an inspection port of a ventilation device main body provided on a ceiling surface is surely located at a predetermined position. .

Another object of the present invention is to obtain a ventilation device in which the positions of the ventilation device main body and duct piping can be adjusted.

[0011]

SUMMARY OF THE INVENTION A ventilation device according to the present invention includes a ventilation device main body connected between ducts disposed in the ceiling, the ventilation device main body being internally positioned and fixed, and the bottom portion being a ceiling. And a frame body formed of an openable and closable grille forming a surface.

Further, an exhaust fan main body in which an exhaust port is connected between ducts arranged in the back of the ceiling and an air supply port faces the indoor side,
The ventilating fan main body is removably positioned and fixed inside, and the bottom has a frame body that forms an openable / closable ceiling plate grille having an opening that allows indoor air to be supplied to the air supply port,
A space is formed between the frame body side portion and the ventilation fan body side portion.

[0013]

In the ventilator according to the present invention, the bottom of the frame body to which the ventilator main body is fixed forms the inspection port, so that the position of the ventilator main body and the inspection port correspond to predetermined positions, and the inspection port is displaced. Strictly prevent the inspection work from being difficult.

Further, the ventilation fan body can be positioned and fixed inside the frame body by the space provided between the frame body side portion and the ventilation fan body side portion, so that the duct piping is not significantly restricted by the position of the beam and the beam is removed. Alternatively, the dimensional error of the duct pipe can be absorbed.

[0015]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing a ventilation device according to the present invention, FIG. 2 is a schematic configuration diagram of FIG.
0 and 11 are ducts arranged in the back of the ceiling, 1 is a duct 10
In the ventilator main body disposed between 11 and 11, the electric motor 2 and the fan 3 that rotates by the driving force of the electric motor are built in, and an air flow is generated in the duct. Reference numeral 5 denotes a frame body, which is fixed to the ceiling wall by a ceiling suspension bolt 12 and covers an inspection port 9a whose bottom portion also serves as a ceiling surface and which can be opened and closed.
b. The ventilation device main body 1 is positioned and fixed to the inner surface of the top plate of the frame body 5.

Next, the operation will be described. When performing duct piping work in a building, usually duct piping
Next, a beam is passed to the inside of the room, and a decorative plate is attached to the beam to form a ceiling surface so that the duct cannot be seen from the room.
Even when different companies do the duct piping and the ceiling surface construction at the building construction stage, in the case of the above configuration, the bottom of the frame 5 also serves as the ceiling surface.
Since it is not necessary to attach a decorative plate to the grill 9b in the process of forming the ceiling surface 9 with the decorative plate, the position of the inspection port 9a is maintained as it is, and the inspection port 9a and the ventilation device main body 1 are The position is reliably prevented from shifting.

Further, since the frame body is formed to be slightly larger than the ventilation device main body 1, a space portion 7 having a sufficient space is formed between the side portion of the frame body 5 and the ventilation device main body side portion 1. Therefore, at the time of maintenance, it is possible to inspect the lower part and the side part of the ventilation device main body 1 without removing the ventilation device main body 1 from the frame body 5. Even in the case of replacement work, the work at the duct connection portion 4 on the side of the ventilation device main body 1 becomes easy.

The ventilator main body 1 is detachably fixed to the frame 5, the grill 9b is opened, and the inspection port 9a is opened.
Since this attachment / detachment work is configured so that the ventilation device body 1 cannot be centrally fixed to the frame body 5 due to the circumstances such as the beams 16 in the ceiling, or by wiring in the ceiling other than the duct. When it is necessary to shift the duct, it is sufficient to shift only the ventilation device main body 1 within the frame body 5 without moving the frame body 5 fixed to the ceiling wall 15 as it is. It is not necessary to repair the beam 16 or replace the decorative plate due to the change to. Further, during maintenance, the ventilation device main body 1 can be removed from the duct and pulled out to the indoor side.

At this time, if the inspection port 9a which is the bottom of the frame 5 and the grill 9b that closes the inspection port are made sufficiently larger than the ventilation device main body 1 (especially the projected area on the ceiling surface) like the frame 5. Even if the ventilation device main body 1 moves within the frame due to the movement of the duct pipe, the inspection port 9a does not shift from the predetermined position, and when the grill 9b is opened for inspection, etc., when working from the indoor side, Sufficient space can be secured on the side of the ventilator main body 1 to facilitate the work.

The frame 5 may be a box-shaped structure having side walls or a frame structure. When it has side walls, it prevents noise, secures a space, and protects the dust from the ceiling of the ventilation device body. And so on. Further, in the case of the skeleton structure, since the side wall of the frame body 5 is not regulated by the difference in the piping direction of the ducts 10 and 11 that penetrate the frame body 5, as shown in FIG. The mounting direction can be set freely and the cost is low.

Example 2. FIG. 4 is a side sectional view showing, for example, a ventilation fan for a ceiling-embedded duct according to the present invention, in which 9 is a ceiling surface, 11 is a duct arranged behind the ceiling, and 8 is air from a room under the ceiling to the duct 11. The ventilation fan body is internally provided with the electric motor 2 and the fan 3 that is rotated by the driving force of the electric motor.
Etc. are built in. Reference numeral 5 denotes a frame body, which is fixed to the ceiling wall 15 by a ceiling suspension bolt 12 and is composed of a grill 9b having an opening / closing inspection port 9a whose bottom also serves as a ceiling surface. The grill 9b is provided with an opening 9c, the suction port 14 of the ventilation fan main body 8 contacts without being fixed, and indoor air is guided from the opening 9c through the suction port 14 to the duct 11. The ventilation fan main body 8 is positioned and fixed to the inner surface of the top plate of the frame body 5.

Next, the operation will be described. The frame body 5 is sufficiently larger than the ventilation fan body 8, and the ventilation fan body 8 is the frame body 5.
Since it is positioned and fixed inside, after assembling the beam 16,
When installing the frame 5 and performing connection work with the duct 11,
The position of the ventilator main body 8 and the duct 11 is not necessarily strictly regulated, and the effect of the installation error when passing the beam 16 on the duct piping is merely adjusted by shifting the ventilating fan main body 8 within the frame body 5 for fine adjustment. On the contrary, the influence on the beam 16 due to the installation error at the time of duct piping is eliminated, and the construction can be performed relatively freely. In addition, in other respects, the description of the portion having the same structure and effect as those of the first embodiment and having the same function and effect will be omitted.

[0023]

As described above, according to the present invention, the ventilator main body connected between the ducts disposed under the ceiling, the ventilator main body is internally positioned and fixed, and the bottom portion serves as the ceiling surface. Since the frame body formed of the openable and closable grille is provided, it is possible to obtain an effect that the inspection port of the ventilation device main body provided on the ceiling surface can surely come to a predetermined position.

Further, an exhaust fan main body in which an exhaust port is connected between ducts arranged on the back of the ceiling and an air supply port faces the indoor side,
The ventilating fan main body is removably positioned and fixed inside, and the bottom has a frame body that forms an openable / closable ceiling plate grille having an opening that allows indoor air to be supplied to the air supply port,
Since a space is formed between the frame body side part and the ventilation fan main body side part, duct piping can be performed without being significantly restricted by the beam, and the dimensional error of the beam or duct piping can be adjusted within the frame. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an intermediate type ventilation device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing an intermediate type ventilation device according to the first embodiment of the present invention.

FIG. 3 is a plan view showing an intermediate type ventilation device according to the first embodiment of the present invention.

4A and 4B are a side sectional view and a bottom view showing a ventilation fan type ventilation device for a duct according to a second embodiment of the present invention.

FIG. 5 is a system configuration diagram showing a conventional ventilation device.

FIG. 6 is a side view showing a conventional intermediate type ventilation device.

FIG. 7 is a perspective view showing a mounting state of a conventional duct ventilation fan.

[Explanation of symbols]

 1 Ventilator body 5 Frame 7 Space 8 Ventilation fan body

Claims (2)

[Claims] 1. A ventilator main body connected between ducts arranged behind the ceiling, and a ventilator main body that is positioned and fixed inside and has an openable and closable grille whose bottom forms a ceiling surface. A ventilator comprising a frame. 2. A ventilating fan main body in which an exhaust port is connected between ducts arranged on the ceiling and an air supply port is exposed to the indoor side, and the ventilating fan main body is removably positioned and fixed inside and a bottom portion is provided. A frame body that forms an openable / closable ceiling plate grill having an opening that allows indoor air to be supplied to the air supply port, and a space portion is formed between the frame body side portion and the ventilation fan main body side portion. Ventilation device characterized by.